Recent Updates
Recently added Catalysts

Cabotegravir

Phase 3FDA approved

HIV Infections | Small molecule | Infectious Disease |GSK plc|Trials Updated: Oct 13, 2026

Cabotegravir development status

FDA approval on record Jan 21, 2021
Approval holderViiv Hlthcare
ApplicationNDA212888
Highest phase Phase 3
Registered trials 11 across 3 sponsors since May 2017

Label indication CABENUVA is indicated as a complete regimen for the treatment of HIV-1 infection in adults and adolescents 12 years of age and older and weighing at least 35 kg to replace the current antiretroviral regimen in those who are virologically suppressed (HIV-1 RNA <50 copies/mL) on a stable antiretroviral regimen with no history of treatment failure and with no known or suspected resistance to either cabotegravir or… FDA label

Cabotegravir target and mechanism

ModalitySmall molecule

Also known as CAB LA, CAB ULA, Cabotegravir long-acting, Cabotegravir (CAB) tablet, Cabotegravir - Injectable Suspension (CAB LA), Cabotegravir- Injectable, Cabotegravir Tablets, Cabotegravir Injectable Suspension

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindCONTROLLEDDMC
Total Trials25
Total Enrollment8,567

FDA Designations

No designations recorded

Cabotegravir clinical trials

Cabotegravir · 25 trials · 4 indications

Phase 3 10Phase 2 4Phase 1 11
NCT07650916A Study to Investigate Cabotegravir Ultra Long-Acting (CAB ULA) Plus Rilpivirine Ultra Long-Acting (RPV ULA) in Adults and Adolescents With HIV Who Are Virologically SuppressedHIV Infections
RECRUITING564 Analytics
NCT06694805A Study to Evaluate the Effectiveness of Long-acting (LA) Cabotegravir (CAB) + Rilpivirine (RPV) LA When Given to Participants With Detectable HIV-1HIV Infections
ACTIVE NOT_RECRUITING326 Analytics
NCT06134362Long-term Follow-up of Long-acting Cabotegravir (CAB LA) for PrEP (Pre-exposure Prophylaxis) in Participants at Risk of Acquiring HIV (Human Immunodeficiency Virus)HIV Infections
ACTIVE NOT_RECRUITING2,996 Analytics
NCT05896748Study to Assess the Effects of Cabotegravir (CAB) and Rilpivirine (RPV) Long-Acting (LA) Injections Following Sub-cutaneous (SC) Administration Compared With Intramuscular (IM) Administration in Adult Participants Living With Human Immunodeficiency Virus (HIV-1) Infection in the FLAIR StudyHuman Immunodeficiency Virus Type 1 (HIV-1)
COMPLETED94 Analytics
NCT05896761A Sub-study of Cabotegravir (CAB) and Rilpivirine (RPV) in Human Immunodeficiency Viruses (HIV)-Infected ParticipantsHuman Immunodeficiency Virus Type 1 (HIV-1)
COMPLETED118 Analytics
NCT04542070A Study to Evaluate Efficacy and Safety of Cabotegravir (CAB) Long Acting (LA) Plus (+) Rilpivirine (RPV) LA Versus BIKTARVY® (BIK) in Participants With Human Immunodeficiency Virus (HIV)-1 Who Are Virologically SuppressedHIV Infections
COMPLETED687 Analytics
NCT04001803Study to Identify and Determine Best Implementation Practices for Injectable Cabotegravir+Rilpivirine in the United States (US)HIV Infections
COMPLETED115 Analytics
NCT03299049Efficacy, Safety and Tolerability Study of Long-acting Cabotegravir Plus Long-acting Rilpivirine (CAB LA + RPV LA) in Human-immunodeficiency Virus-1 (HIV-1) Infected AdultsHIV Infections
ACTIVE NOT_RECRUITING1,049 Analytics
NCT02951052Study Evaluating the Efficacy, Safety, and Tolerability of Switching to Long-acting Cabotegravir Plus Long-acting Rilpivirine From Current Antiretroviral Regimen in Virologically Suppressed HIV-1-infected AdultsInfection, Human Immunodeficiency Virus
ACTIVE NOT_RECRUITING618 Analytics
NCT02938520Study to Evaluate the Efficacy, Safety, and Tolerability of Long-acting Intramuscular Cabotegravir and Rilpivirine for Maintenance of Virologic Suppression Following Switch From an Integrase Inhibitor in HIV-1 Infected Therapy Naive ParticipantsHIV Infections
ACTIVE NOT_RECRUITING631 Analytics
PHASE3RECRUITING
A Study to Investigate Cabotegravir Ultra Long-Acting (CAB ULA) Plus Rilpivirine Ultra Long-Acting (RPV ULA) in Adults and Adolescents With HIV Who Are Virologically Suppressed
HIV InfectionsUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Study to Evaluate the Effectiveness of Long-acting (LA) Cabotegravir (CAB) + Rilpivirine (RPV) LA When Given to Participants With Detectable HIV-1
HIV InfectionsUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Long-term Follow-up of Long-acting Cabotegravir (CAB LA) for PrEP (Pre-exposure Prophylaxis) in Participants at Risk of Acquiring HIV (Human Immunodeficiency Virus)
HIV InfectionsUnlock trial analytics
PHASE3COMPLETED
Study to Assess the Effects of Cabotegravir (CAB) and Rilpivirine (RPV) Long-Acting (LA) Injections Following Sub-cutaneous (SC) Administration Compared With Intramuscular (IM) Administration in Adult Participants Living With Human Immunodeficiency Virus (HIV-1) Infection in the FLAIR Study
Human Immunodeficiency Virus Type 1 (HIV-1)Unlock trial analytics
PHASE3COMPLETED
A Sub-study of Cabotegravir (CAB) and Rilpivirine (RPV) in Human Immunodeficiency Viruses (HIV)-Infected Participants
Human Immunodeficiency Virus Type 1 (HIV-1)Unlock trial analytics
PHASE3COMPLETED
A Study to Evaluate Efficacy and Safety of Cabotegravir (CAB) Long Acting (LA) Plus (+) Rilpivirine (RPV) LA Versus BIKTARVY® (BIK) in Participants With Human Immunodeficiency Virus (HIV)-1 Who Are Virologically Suppressed
HIV InfectionsUnlock trial analytics
PHASE3COMPLETED
Study to Identify and Determine Best Implementation Practices for Injectable Cabotegravir+Rilpivirine in the United States (US)
HIV InfectionsUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Efficacy, Safety and Tolerability Study of Long-acting Cabotegravir Plus Long-acting Rilpivirine (CAB LA + RPV LA) in Human-immunodeficiency Virus-1 (HIV-1) Infected Adults
HIV InfectionsUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Study Evaluating the Efficacy, Safety, and Tolerability of Switching to Long-acting Cabotegravir Plus Long-acting Rilpivirine From Current Antiretroviral Regimen in Virologically Suppressed HIV-1-infected Adults
Infection, Human Immunodeficiency VirusUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Study to Evaluate the Efficacy, Safety, and Tolerability of Long-acting Intramuscular Cabotegravir and Rilpivirine for Maintenance of Virologic Suppression Following Switch From an Integrase Inhibitor in HIV-1 Infected Therapy Naive Participants
HIV InfectionsUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of participants with plasma HIV-RNA greater than or equal to (>=) 50 copies (c)/mL as per Food and Drug Administration (FDA) Snapshot algorithm
At Month 11
Number of participants with virologic suppression after the CAB LA + RPV LA treatment compared to oral ART
At Month 6

A virologic suppression is defined by HIV-1 RNA less than (\<) 50 copies (c)/mL.

Number of participants with new HIV infection
From Day 1 up to end of study (up to approximately [approx.] 3 years)
Number of participants with new HIV infection by characteristic
From Day 1 up to end of study (up to approx. 3 years)

Relevant characteristics of new HIV infections will be assessed, including presence of viral resistance to CAB.

Concentrations at the End of the Dosing Interval (Ctau) of CAB LA 400 mg Following Administration CAB LA + RPV LA
At screening Week-4; Day 1, Week 4, Week 8 for SC injections; and Week 12 for Return to IM gluteal injection

Blood samples were collected at indicated time points for PK analysis.

Ctau of RPV LA 600 mg Following Administration of CAB LA + RPV LA
At screening Week-4; Day 1, Week 4, Week 8 for SC abdominal injections; and Week 12 for Return to IM gluteal injection

Blood samples were collected at indicated time points for PK analysis.

Maximum Plasma Concentration (Cmax) One Week Post Dose of CAB LA 400 mg Following Administration of CAB LA + RPV LA
At screening week -3; Week 1, Week 5, Week 9 for SC abdominal injections; and Week 13 for Return to IM gluteal injection

Blood samples were collected at indicated time points for PK analysis.

Cmax One Week Post Dose of RPV LA 600 mg Following Administration of CAB LA + RPV LA
At screening Week -3; Week 1, Week 5, Week 9 for SC abdominal injections; and Week 13 for Return to IM gluteal injection

Blood samples were collected at indicated time points for PK analysis.

Area Under the Plasma Concentration-time Curve From 0 Through the End of Dosing Interval (AUC[0-tau]) of CAB LA 400 mg Following Administration of CAB LA + RPV LA
At screening Week-4; Day 1, Week 4, Week 8 for SC abdominal injections; and Week 12, for Return to IM gluteal injection

Blood samples were collected at indicated time points for PK analysis.

AUC[0-tau] of RPV LA 600 mg Following Administration of CAB LA + RPV LA
At screening Week-4; Day 1, Week 4, Week 8 for SC abdominal injections; and Week 12 for Return to IM gluteal injection

Blood samples were collected at indicated time points for PK analysis.

Concentration at End of Dosing Interval (Ctau) of CAB LA Following Administration of CAB LA + RPV LA Q8W
Weeks -8,-7,-4 and Pre-dose on Day 1(Pre-Thigh Gluteal Injection);2 Hours post-dose on Day 1,Pre-dose on Week 8,Weeks 1 and 4 post-dose(First Thigh Injection);2 Hours post-dose on Week 8 and Weeks 9, 12 post-dose,Pre-dose on Week 16(Last Thigh Injection)

Blood samples were collected at indicated time points for pharmacokinetic (PK) analysis.

Concentration at End of Dosing Interval (Ctau) of RPV LA Following Administration of CAB LA + RPV LA Q8W
Weeks -8,-7,-4 and Pre-dose on Day 1(Pre-Thigh Gluteal Injection);2 Hours post-dose on Day 1,Pre-dose on Week 8,Weeks 1 and 4 post-dose(First Thigh Injection);2 Hours post-dose on Week 8 and Weeks 9, 12 post-dose,Pre-dose on Week 16(Last Thigh Injection)

Blood samples were collected for PK analysis.

Maximum Plasma Concentration (Cmax) of CAB LA Following Administration of CAB LA + RPV LA Q8W
Weeks -8,-7,-4 and Pre-dose on Day 1(Pre-Thigh Gluteal Injection);2 Hours post-dose on Day 1,Pre-dose on Week 8,Weeks 1 and 4 post-dose(First Thigh Injection);2 Hours post-dose on Week 8 and Weeks 9, 12 post-dose,Pre-dose on Week 16(Last Thigh Injection)

Blood samples were collected for PK analysis.

Maximum Plasma Concentration (Cmax) of RPV LA Following Administration of CAB LA + RPV LA Q8W
Weeks -8,-7,-4 and Pre-dose on Day 1(Pre-Thigh Gluteal Injection);2 Hours post-dose on Day 1,Pre-dose on Week 8,Weeks 1 and 4 post-dose(First Thigh Injection);2 Hours post-dose on Week 8 and Weeks 9, 12 post-dose,Pre-dose on Week 16(Last Thigh Injection)

Blood samples were collected for PK analysis.

Area Under the Concentration Curve From 0 Hours to the Time of Next Dosing (AUC [0-tau]) of CAB LA Following Administration of CAB LA + RPV LA Q8W
Weeks -8,-7,-4 and Pre-dose on Day 1(Pre-Thigh Gluteal Injection);2 Hours post-dose on Day 1,Pre-dose on Week 8,Weeks 1 and 4 post-dose(First Thigh Injection);2 Hours post-dose on Week 8 and Weeks 9, 12 post-dose,Pre-dose on Week 16(Last Thigh Injection)

Blood samples were collected for PK analysis.

Area Under the Concentration Curve From 0 Hours to the Time of Next Dosing (AUC [0-tau]) of RPV LA Following Administration of CAB LA + RPV LA Q8W
Weeks -8,-7,-4 and Pre-dose on Day 1(Pre-Thigh Gluteal Injection);2 Hours post-dose on Day 1,Pre-dose on Week 8,Weeks 1 and 4 post-dose(First Thigh Injection);2 Hours post-dose on Week 8 and Weeks 9, 12 post-dose,Pre-dose on Week 16(Last Thigh Injection)

Blood samples were collected for PK analysis.

Concentration at End of Dosing Interval (Ctau) of CAB LA Following Administration of CAB LA + RPV LA Q4W
Weeks -4 and -3, Pre-dose on Day 1 (Pre-Thigh Gluteal Injection); 2 Hours post-dose on Day 1, Week 1 post-dose, Pre-dose on Week 4 (First Thigh Injection); 2 Hours post-dose on Week 12, Week 13 post-dose and Pre-dose on Week 16 (Last Thigh Injection)

Blood samples were collected for PK analysis.

Concentration at End of Dosing Interval (Ctau) of RPV LA Following Administration of CAB LA + RPV LA Q4W
Weeks -4 and -3, Pre-dose on Day 1 (Pre-Thigh Gluteal Injection); 2 Hours post-dose on Day 1, Week 1 post-dose, Pre-dose on Week 4 (First Thigh Injection); 2 Hours post-dose on Week 12, Week 13 post-dose and Pre-dose on Week 16 (Last Thigh Injection)

Blood samples were collected for PK analysis.

Maximum Plasma Concentration (Cmax) of CAB LA Following Administration of CAB LA + RPV LA Q4W
Weeks -4 and -3, Pre-dose on Day 1 (Pre-Thigh Gluteal Injection); 2 Hours post-dose on Day 1, Week 1 post-dose, Pre-dose on Week 4 (First Thigh Injection); 2 Hours post-dose on Week 12, Week 13 post-dose and Pre-dose on Week 16 (Last Thigh Injection)

Blood samples were collected for PK analysis.

Maximum Plasma Concentration (Cmax) of RPV LA Following Administration of CAB LA + RPV LA Q4W
Weeks -4 and -3, Pre-dose on Day 1 (Pre-Thigh Gluteal Injection); 2 Hours post-dose on Day 1, Week 1 post-dose, Pre-dose on Week 4 (First Thigh Injection); 2 Hours post-dose on Week 12, Week 13 post-dose and Pre-dose on Week 16 (Last Thigh Injection)

Blood samples were collected for PK analysis.

Area Under the Concentration Curve From 0 Hours to the Time of Next Dosing (AUC [0-tau]) of CAB LA Following Administration of CAB LA + RPV LA Q4W
Weeks -4 and -3, Pre-dose on Day 1 (Pre-Thigh Gluteal Injection); 2 Hours post-dose on Day 1, Week 1 post-dose, Pre-dose on Week 4 (First Thigh Injection); 2 Hours post-dose on Week 12, Week 13 post-dose and Pre-dose on Week 16 (Last Thigh Injection)

Blood samples were collected for PK analysis.

Area Under the Concentration Curve From 0 Hours to the Time of Next Dosing (AUC [0-tau]) of RPV LA Following Administration of CAB LA + RPV LA Q4W
Weeks -4 and -3, Pre-dose on Day 1 (Pre-Thigh Gluteal Injection); 2 Hours post-dose on Day 1, Week 1 post-dose, Pre-dose on Week 4 (First Thigh Injection); 2 Hours post-dose on Week 12, Week 13 post-dose and Pre-dose on Week 16 (Last Thigh Injection)

Blood samples were collected for PK analysis.

Percentage of Participants With Plasma Human Immunodeficiency Viruses (HIV)-1 Ribonucleic Acid (RNA) Greater Than or Equal to (>=) 50 Copies Per Milliliter (c/mL) at Month 12/11 - ITT-E Population
At month 12/11

Percentage of participants with plasma HIV 1 RNA \>= 50 c/mL at month 12 was assessed using the food and drug administration (FDA) snapshot algorithm. For the Q2M arm, data from the Q2M OLI participants at Month 12 visit and Q2M D2I participants at Month 11 visit were combined as the study objective was to demonstrate the non-inferior antiviral activity of (Q2M) (OLI+ D2I combined) compared to BIK. For BIK arm, data was collected at month 12 visit. Month 12/11 refers to the Month 12 (OLI and BIK) visit/Month 11 (DTI) visit. The FDA snapshot algorithm defines a participant's virologic response status using only the viral load at the predefined time point within a window of time (HIV-RNA equal to or above 50 copies/mL and HIV-RNA below 50 copies/mL), along with study drug discontinuation status. The third category of the FDA snapshot ("No virologic data") is not pre-defined as an endpoint and therefore not reported separately.

Percentage of Participants With Plasma HIV-1 RNA Greater >=50 Copies Per Milliliter (c/mL) at Month 12/11 - mITT-E Population
At month 12/11

Percentage of participants with plasma HIV 1 RNA \>= 50 c/mL at month 12 was assessed using the food and drug administration (FDA) snapshot algorithm. For the Q2M arm, data from the Q2M OLI participants at Month 12 visit and Q2M D2I participants at Month 11 visit were combined as the study objective was to demonstrate the non-inferior antiviral activity of (Q2M) (OLI+ D2I combined) compared to BIK. For BIK arm, data was collected at month 12 visit. Month 12/11 refers to the Month 12 (OLI and BIK) visit/Month 11 (DTI) visit. The FDA snapshot algorithm defines a participant's virologic response status using only the viral load at the predefined time point within a window of time (HIV-RNA equal to or above 50 copies/mL and HIV-RNA below 50 copies/mL), along with study drug discontinuation status. The third category of the FDA snapshot ("No virologic data") is not pre-defined as an endpoint and therefore not reported separately.

Change From Baseline in the Acceptability of Intervention Measure (AIM) Total Score in Staff Study Participants at Month 4
Baseline and Month 4

AIM is a four item survey that assessed the acceptability of an implementation process. The staff study participants were asked to indicate how much they agreed or disagreed with each of the 4 items in the AIM based on their current experiences with implementing the CAB + RPV injection treatment on a five point rating scale (1=completely disagree to 5=completely agree). The AIM total score ranges from 1 to 5 with 1 indicating the least acceptability and 5 the most acceptability. Baseline is defined as the latest pre-treatment assessment with a non-missing value, including those from unscheduled visits. Change from Baseline value is defined as post-dose value minus Baseline value.

Change From Baseline in AIM Total Score in Staff Study Participants at Month 12
Baseline and Month 12

AIM is a four item survey that assessed the acceptability of an implementation process. The staff study participants were asked to indicate how much they agreed or disagreed with each of the 4 items in the AIM based on their current experiences with implementing the CAB + RPV injection treatment on a five point rating scale (1=completely disagree to 5=completely agree). The AIM total score ranges from 1 to 5 with 1 indicating the least acceptability and 5 the most acceptability. Baseline is defined as the latest pre-treatment assessment with a non-missing value, including those from unscheduled visits. Change from Baseline value is defined as post-dose value minus Baseline value.

Change From Baseline in AIM Total Score in Participants With HIV Infection at Month 4
Baseline and Month 4

AIM is a four item survey that assessed the acceptability of an implementation process. The participants were asked about their impressions of the CAB LA + RPV LA injection treatment for treating HIV on a five point rating scale (1=completely disagree to 5=completely agree). The AIM total score ranges from 1 to 5 with 1 indicating the least acceptability and 5 the most acceptability. Baseline is defined as the latest pre-treatment assessment with a non-missing value, including those from unscheduled visits. Change from Baseline value is defined as post-dose value minus Baseline value.

Change From Baseline in AIM Total Score in Participants With HIV Infection at Month 12
Baseline and Month 12

AIM is a four item survey that assessed the acceptability of an implementation process. The participants were asked about their impressions of the CAB LA + RPV LA injection treatment for treating HIV on a five point rating scale (1=completely disagree to 5=completely agree). The AIM total score ranges from 1 to 5 with 1 indicating the least acceptability and 5 the most acceptability. Baseline is defined as the latest pre-treatment assessment with a non-missing value, including those from unscheduled visits. Change from Baseline value is defined as post-dose value minus Baseline value.

Change From Baseline in Intervention Appropriateness Measure (IAM) Score in Staff Study Participants at Month 4
Baseline and Month 4

IAM is a four item survey that assessed the appropriateness of an implementation process. The staff study participants were asked to indicate how much they agreed or disagreed with each of the 4 items in the IAM based on their current experiences with implementing the CAB + RPV injection treatment on a five point rating scale (1=completely disagree to 5=completely agree). The IAM total score ranges from 1 to 5 with 1 indicating the least appropriateness and 5 the most appropriateness. Baseline is defined as the latest pre-treatment assessment with a non-missing value, including those from unscheduled visits. Change from Baseline value is defined as post-dose value minus Baseline value.

Change From Baseline in IAM Score in Staff Study Participants at Month 12
Baseline and Month 12

IAM is a four item survey that assessed the appropriateness of an implementation process. The staff study participants were asked to indicate how much they agreed or disagreed with each of the 4 items in the IAM based on their current experiences with implementing the CAB + RPV injection treatment on a five point rating scale (1=completely disagree to 5=completely agree). The IAM total score ranges from 1 to 5 with 1 indicating the least appropriateness and 5 the most appropriateness. Baseline is defined as the latest pre-treatment assessment with a non-missing value, including those from unscheduled visits. Change from Baseline value is defined as post-dose value minus Baseline value.

Change From Baseline in IAM Score in Participants With HIV Infection at Month 4
Baseline and Month 4

IAM is a four item survey that assessed the appropriateness of an implementation process. The participants were asked to indicate how much they agreed or disagreed with each of the 4 items in the IAM based on their current experiences with implementing the CAB + RPV injection treatment on a five point rating scale (1=completely disagree to 5=completely agree). The IAM total score ranges from 1 to 5 with 1 indicating the least appropriateness and 5 the most appropriateness. Baseline is defined as the latest pre-treatment assessment with a non-missing value, including those from unscheduled visits. Change from Baseline value is defined as post-dose value minus Baseline value.

Change From Baseline in IAM Score in Participants With HIV Infection at Month 12
Baseline and Month 12

IAM is a four item survey that assessed the appropriateness of an implementation process. The participants were asked to indicate how much they agreed or disagreed with each of the 4 items in the IAM based on their current experiences with implementing the CAB + RPV injection treatment on a five point rating scale (1=completely disagree to 5=completely agree). The IAM total score ranges from 1 to 5 with 1 indicating the least appropriateness and 5 the most appropriateness. Baseline is defined as the latest pre-treatment assessment with a non-missing value, including those from unscheduled visits. Change from Baseline value is defined as post-dose value minus Baseline value.

Change From Baseline in Feasibility of Intervention Measure (FIM) Total Score in Staff Study Participants at Month 4
Baseline and Month 4

FIM is a four item survey that assessed the feasibility of an implementation process. The staff study participants were asked to indicate how much they agreed or disagreed with each of the 4 items in the FIM based on their current experiences with implementing the CAB + RPV injection treatment on a five point rating scale (1=completely disagree to 5=completely agree). The FIM total score ranges from 1 to 5 with 1 indicating the least feasibility and 5 the most feasibility. Baseline is defined as the latest pre-treatment assessment with a non-missing value, including those from unscheduled visits. Change from Baseline value is defined as post-dose value minus Baseline value.

Change From Baseline for FIM Total Score in Staff Study Participants at Month 12
Baseline and Month 12

FIM is a four item survey that assessed the feasibility of an implementation process. The staff study participants were asked to indicate how much they agreed or disagreed with each of the 4 items in the FIM based on their current experiences with implementing the CAB + RPV injection treatment on a five point rating scale (1=completely disagree to 5=completely agree). The FIM total score ranges from 1 to 5 with 1 indicating the least feasibility and 5 the most feasibility. Baseline is defined as the latest pre-treatment assessment with a non-missing value, including those from unscheduled visits. Change from Baseline value is defined as post-dose value minus Baseline value.

Percentage of Participants With Plasma Human Immunodeficiency Virus-ribonucleic Acid (HIV-RNA) >=50 Copies Per Milliliter (c/mL) as Per Food and Drug Administration (FDA) Snapshot Algorithm at Week 48
Week 48

Percentage of participants with HIV-1 RNA \>=50 c/mL as per FDA snapshot algorithm at Week 48 was assessed to demonstrate the non-inferior antiviral activity of CAB LA+RPV LA Q8W compared to CAB LA + RPV LA Q4W regimen over 48 weeks in HIV-1 infected ART experienced participants. The HIV-1 RNA \>=50 c/mL per Snapshot algorithm was determined by the last on-treatment HIV-1 RNA measurement within the Week 48 analysis visit window. Intent-to-treat-Exposed (ITT-E) Population comprised of all randomized participants who received at least one dose of study treatment. Participants were assessed according to their randomized treatment, regardless of the treatment they received.

Number of Participants With Virologic Failure (HIV-1 Ribonucleic Acid [RNA] >=50 Copies Per Millilter [mL]) Using Snapshot Algorithm at Week 48
Week 48

Number of participants with virologic failure endpoint (HIV-1 RNA\>=50 c/mL) as per Food and Drug Administration (FDA) snapshot algorithm at Week 48 was assessed to demonstrate the non-inferior antiviral activity of switching to intramuscular (IM) CAB LA+RPV LA every 4 weeks compared to continuation of current ART regimen over 48 weeks in HIV-1 infected ART-experienced participants. The HIV-1 RNA \>=50 copies/mL per snapshot algorithm was determined by the last available on-treatment HIV-1 RNA measurement within the analysis visit window of interest.

Percentage of Participants With Virologic Failure (HIV-1 Ribonucleic Acid [RNA] >=50 Copies Per Millilter [mL]) Using Snapshot Algorithm at Week 48
Week 48

Percentage of participants with virologic failure endpoint (HIV-1 RNA\>=50 c/mL) as per Food and Drug Administration (FDA) snapshot algorithm at Week 48 was assessed to demonstrate the noninferior antiviral activity of switching to intramuscular (IM) CAB LA+RPV LA every 4 weeks compared to continuation of ABC/DTG/3TC regimen over 48 weeks in HIV-1 infected ARTexperienced participants. The HIV-1 RNA \>=50 copies/mL per snapshot algorithm was determined by the last on-treatment HIV-1 RNA measurement within the Week 48 analysis visit window (+/- 6 weeks) or at time of discontinuation (if discontinuation occurred prior to Week 48 for reasons other than Adverse Event).

CAB trough concentrations for target of 1.05 microgram per milliliter (μg/mL) for men and 1.39 μg/mL for women
From Month 13 to Month 25

CAB trough concentrations are evaluated at or above the target of 1.05 μg/mL for men and 1.39 μg/mL for women, once steady state has been achieved, but no earlier than Month 13 of the study.

Feasibility of CDTM+
Baseline, Month 12

Feasibility of CDTM+ assessed using the Intervention Measure: 4-item Likert scale, each item scored 1 (completely disagree) to 5 (completely agree) and averaged. Score range 4-20, higher scores reflect higher feasibility.

Acceptability of CDTM+
Baseline, Month 12

Assessed using the Theoretical Framework of Acceptability Questionnaire: 7-items, each scored on Likert scale 1 to 5 and averaged. Score range 7-35, higher scores reflect higher acceptability.

Evaluate the adoption of CAB/RPV LA in the population receiving CDTM+
Month 12

Assessed by the percentage of patients who have a documented 1st injection visit

Percentage of Participants With HIV-ribonucleic Acid (RNA) >=50 Copies Per Milliliter (c/mL) as Per Food and Drug Administration (FDA) Snapshot Algorithm at Month 12 [Maintenance Phase]
At Month 12 [Maintenance Phase]

Percentage of participants with HIV-1 RNA \>=50 c/mL as per FDA snapshot algorithm at Month 12 was assessed to demonstrate the antiviral activity of CAB LA+RPV LA Q2M and DTG + RPV regimen in HIV-1 infected antiretroviral therapy (ART) experienced participants. The HIV-1 RNA \>=50 c/mL per Snapshot algorithm was determined by the last on-treatment HIV-1 RNA measurement within the 12 months analysis visit window.

Percentage of Participants With Plasma Human Immunodeficiency Virus-1 (HIV-1) Ribonucleic Acid (RNA) Level Below 50 Copies/Milliliter (c/mL) at Week 32
Week 32

Percentage of participants with HIV-1 RNA\<50 c/mL was obtained using Food and Drug Administration (FDA) Snapshot algorithm. The algorithm treated all participants without HIV-1 RNA data at the visit of interest (due to missing data or discontinuation of investigational product prior to the visit window) as well as participants who switch their concomitant antiretroviral therapy (ART) prior to the visit of interest as non-responders. The Intent-to-Treat Maintenance Exposed (ITT-ME) Population consisted of all randomized participants who received at least one injection or one dose of investigational product during the Maintenance Period of the study (on or after Day 1 visit).

Number of Participants With Protocol Defined Virologic Failure (PDVF) Until Week 32
Up to Week 32

Virologic failure was defined as any of the following: (1) Non-response as indicated by a less than 1.0 logarithm to base 10 (log10) c/mL decrease in plasma HIV-1 RNA after 4 weeks of starting the Induction Period, which is subsequently confirmed, unless the plasma HIV-1 RNA is \< 400 c/mL; (2) Rebound as indicated by two consecutive plasma HIV-1 RNA levels \>=200 c/mL after prior suppression to \< 200 c/mL; (3) Rebound as indicated by two consecutive plasma HIV-1 RNA that are \> 0.5 log10 c/mL increase in plasma HIV-1 RNA from the nadir value on study, where the lowest HIV-1 RNA value is \>=200 c/mL.

Number of Participants With Any Serious Adverse Event (SAE) and Any Non-serious Adverse Event (Non-SAE) (Induction Period)
Up to 20 weeks

An AE is defined as any untoward medical occurrence in a participant or clinical investigation participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. A SAE is defined as any untoward medical occurrence that, at any dose, results in death, is life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, or is a congenital anomaly/birth defect, important medical events which may require medical or surgical intervention, drug-induced liver injury with hyperbilirubinaemia.

Number of Participants With Any Serious Adverse Event (SAE) and Any Non-serious Adverse Event (Non-SAE) (Maintenance Period)
Up to an average of 59 weeks

An AE is defined as any untoward medical occurrence in a participant or clinical investigation participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. A SAE is defined as any untoward medical occurrence that, at any dose, results in death, is life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, or is a congenital anomaly/birth defect, important medical events which may require medical or surgical intervention, drug-induced liver injury with hyperbilirubinaemia. Data presented includes all post-baseline induction period and maintenance period adverse events, as well as long-term follow-up period adverse events for those participants who did not enter the extension period.

Number of Participants With Post-Baseline Adverse Events by Maximum Toxicity Grade
Up to an average of 59 weeks

An AE is defined as any untoward medical occurrence in a participant or clinical investigation participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Toxicity was graded according to Division of Acquired Immunodeficiency Syndrome (DAIDS) grading criteria, where Grade 1-mild, Grade 2-moderate, Grade 3-severe, Grade 4-potentially life-threatening. Data presented includes all post-baseline treatment emergent Induction Period and MP toxicities, as well as LTFP toxicities for those participants who did not enter the extension period. Number of participants with post-Baseline adverse events by maximum toxicity Grade have been presented.

Number of Participants With Maximum Post-Baseline Emergent Toxicities for Clinical Chemistry Parameters
Up to an average of 59 weeks

Clinical chemistry parameters aspartate amino transferase (AST), alanine amino transferase (ALT), alkaline phosphatase (ALP), carbon dioxide(CO2) content/bicarbonate (HCO3), cholesterol, creatine kinase (CK), glucose, low density lipoprotein (LDL) cholesterol, lipase, potassium, and sodium, total bilirubin (TBIL) and triglycerides were evaluated. Toxicity was graded according to Division of Acquired Immunodeficiency Syndrome (DAIDS) grading criteria, where Grade 1-mild, Grade 2-moderate, Grade 3-severe, Grade 4-potentially life-threatening. Data presented includes all post-baseline treatment emergent Induction Period and MP toxicities, as well as LTFP toxicities for those participants who did not enter the extension period. Number of participants with any time post-baseline maximum emergent toxicities in any of the chemistry parameters have been presented.

Number of Participants With Maximum Post-Baseline Emergent Toxicities for Hematology Parameters
Up to an average of 59 weeks

Hematology parameters hemoglobin, platelet count, total neutrophils and white blood cell count were evaluated. Toxicity was graded according to DAIDS grading criteria, where Grade 1-mild, Grade 2-moderate, Grade 3-severe, Grade 4-potentially life-threatening. Data presented includes all post-baseline treatment emergent Induction Period and MP toxicities, as well as LTFP toxicities for those participants who did not enter the extension period. Number of participants with any time post-baseline maximum emergent toxicities in any of the hematology parameters have been presented.

Number of Participants With Post-Baseline Urinalysis Dipstick Results
Up to an average of 59 weeks

Urinalysis dipstick included urine occult blood, urine glucose, urine ketones, urine nitrite, urine protein and urine leukocyte. The dipstick test gives results in a semi-quantitative manner and results for urinalysis parameters can be read as positive, trace, 1+, 2+ and 3+ indicating proportional concentrations in the urine sample. Data presented includes all post-baseline dipstick results during Induction and Maintenance Periods, as well as LTFP for those participants who did not enter the extension period.

Maximum observed plasma concentration (Cmax) of CAB in participants from Stage 1: Single Oral Dose CAB (Cohort 1) group
At study Days 1, 3, 8, 15 and 22

Blood samples are collected at specific time points for PK analysis to determine Cmax.

Maximum observed plasma concentration (Cmax) of CAB LA in participants from Stage 2: Single IM Dose CAB LA (Cohort 3) group
At study Days 1, 3, 9,16, 28 and 42

Blood samples are collected at specific time points for PK analysis to determine Cmax.

Last observed plasma concentration (Clast) of CAB in participants from Stage 1: Single Oral Dose CAB (Cohort 1) group
At study Days 1, 3, 8, 15 and 22

Blood samples are collected at specific time points for PK analysis to determine Clast.

Last observed plasma concentration (Clast) of CAB LA in participants from Stage 2: Single IM Dose CAB LA (Cohort 3) group
At study Days 1, 3, 9, 16, 28 and 42

Blood samples are collected at specific time points for PK analysis to determine Clast.

Area under the curve time 0 to the last time point (AUC0-t) of CAB in participants from Stage 1: Single Oral Dose CAB (Cohort 1) group
At study Days 1, 3, 8, 15 and 22

Blood samples are collected at specific time points for PK analysis to determine AUC0-t.

Area under the curve time 0 to the last time point (AUC0-t) of CAB LA in participants from Stage 2: Single IM Dose CAB LA (Cohort 3) group
At study Days 1, 3, 9, 16, 28 and 42

Blood samples are collected at specific time points for PK analysis to determine AUC0-t.

Pre-dose concentrations (C0h) of CAB in participants from Stage 1: Multiple Oral Dose CAB (Cohort 2) group
At Study Days 1, 3, 7, 14, 28, 35, 42 and 49

Blood samples are collected at specific time points for PK analysis to determine C0h.

Pre-dose concentrations (C0h) of CAB LA in participants from Stage 2: Multiple IM Dose CAB LA (Cohort 4) group
At Study Days 1, 3, 7, 21, 28, 42, 56, 70, 84, 98, 112, 140 and 168

Blood samples are collected at specific time points for PK analysis to determine C0h.

Post-dose concentrations of CAB in participants from Stage 1: Multiple Oral Dose CAB (Cohort 2) group
At Study Days 1, 3, 7, 14, 21, 28, 35, 42 and 49

Blood samples are collected at specific time points for PK analysis to determine post-dose concentrations.

Post-dose concentrations of CAB LA in participants from Stage 2: Multiple IM Dose CAB LA (Cohort 4) group
At Study Days 1, 3, 7, 14, 21, 28, 35, 42, 56, 70, 84, 98, 112, 140 and 168

Blood samples are collected at specific time points for PK analysis to determine post-dose concentrations.

Number of participants with drug-related adverse event (AEs) by severity
From Day 1 up to 2-months post last dose administration (last dose administered at Day 1 to the single dose groups, at Month 1 to Stage 1: Multiple Oral Dose CAB (Cohort 2) group and at Month 6 to Stage 2: Multiple IM Dose CAB LA (Cohort 4) group)

A drug-related AE is any untoward medical occurrence in a clinical study participant considered related to the study intervention. The severity of events is graded using the DAIDS grading scale, where grades are defined based on numeric criteria as follows: Grade 1 = mild, Grade 2 = moderate, Grade 3 = severe and Grade 4 = potentially life-threatening. A higher grade indicates greater severity.

Number of participants with serious AEs (SAEs) by severity
From Day 1 up to 2-months post last dose administration (last dose administered at Day 1 to the single dose groups, at Month 1 to Stage 1: Multiple Oral Dose CAB (Cohort 2) group and at Month 6 to Stage 2: Multiple IM Dose CAB LA (Cohort 4) group)

An SAE is defined as any untoward medical occurrence that is life threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, or results in death. The severity of events is graded using the DAIDS grading scale, where grades are defined based on numeric criteria as follows: Grade 1 = mild, Grade 2 = moderate, Grade 3 = severe and Grade 4 = potentially life-threatening. A higher grade indicates greater severity.

Number of participants with injection site reactions (ISRs) by severity
From Day 1 up to 2-months post last dose administration (last dose administered at Day 1 to the single dose groups, at Month 1 to Stage 1: Multiple Oral Dose CAB (Cohort 2) group and at Month 6 to Stage 2: Multiple IM Dose CAB LA (Cohort 4) group)

An ISR is defined as an adverse event which is localized at the injection site, typically includes pain, tenderness, erythema, redness, induration, swelling, nodules or pruritus, but may also encompass other reactions. The severity of events is graded using the DAIDS grading scale, where grades are defined based on numeric criteria as follows: Grade 1 = mild, Grade 2 = moderate, Grade 3 = severe and Grade 4 = potentially life-threatening. A higher grade indicates greater severity.

Number of participants who discontinue the study intervention due to AEs or injection intolerability
From Day 1 up to 2-months post last dose administration (last dose administered at Day 1 to the single dose groups, at Month 1 to Stage 1: Multiple Oral Dose CAB (Cohort 2) group and at Month 6 to Stage 2: Multiple IM Dose CAB LA (Cohort 4) group)

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study intervention, whether or not considered related to the study intervention.

Percentage of participants reporting very acceptable or totally acceptable local reactions
7 days after each injection (injections administered on Day 1 and Day 15)

The analysis is performed using the 21-item perception of injection (PIN) questionnaire which includes 21 items grouped into 4 multi-item domains: 'Acceptance of ISR' scale score (2 items); 'Bother from ISR' scale score (6 items); 'Leg movement' scale score (4 items); 'Sleep' scale score (4 items); and 5 standalone items: pain during injection; anxiety before injection; anxiety after injection; willingness to be injected in the future; and overall satisfaction with mode of administration. Participant responses are scored on a 5-point Likert scale, where 1 represents the least favorable perception of injection and 5 the most favorable, with domain scores calculated as the mean of all items in that domain. "Acceptance of ISR" is reported in this outcome measure for 2 scores: "very acceptable ISR: and "totally acceptable ISR".

Plasma concentration of CAB at the end of the CAB LA phase compared to plasma concentration of CAB at the end of the CAB ULA phase
At Month 23 compared to Month 9
Maximum observed plasma concentration (Cmax) of CAB and RPV
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Time of maximum observed plasma concentration (tmax) of Cabotegravir CAB and RPV
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Area under the concentration - time curve from time zero to infinity (AUC[0-inf]) of CAB and RPV
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Area under the concentration - time curve from time zero to time of last quantifiable concentration or 4 weeks following the injection whichever is earlier (AUC[0-t]) of CAB and RPV
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Cohorts Part A, C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohort C10 [Part C])
Area under the concentration - time curve from time zero to last quantifiable time point or 8 weeks following the injection whichever is earlier [AUC(0-t)]
Up to end of study (Week 72 for Cohort C10 [Part C])
Plasma Concentration of CAB and RPV at Week 4
Week 4
Plasma Concentration of CAB and RPV at Week 8
Week 8
Plasma Concentration of CAB and RPV at Week 12
Week 12
Plasma Concentration of CAB and RPV at Week 16
Week 16
Plasma Concentration of CAB and RPV at Week 24
Week 24
Plasma Concentration of RPV at Week 32
Week 32
Plasma Concentration of CAB at Week 36
Week 36
Plasma Concentration of RPV at Week 40
Week 40
Plasma Concentration of CAB and RPV at Week 48
Week 48
Plasma Concentration of CAB
At weeks 56, 64 and 72 for Cohorts C11 and C10 [Part C]
Plasma Concentration of RPV at Week 56
Week 56
Plasma Concentration of RPV at Week 64
Week 64
Plasma Concentration of RPV at Week 72
Week 72
Apparent terminal phase half-life (t1/2) of CAB and RPV
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Apparent long-acting absorption rate constant (KA-LA) of CAB and RPV
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Number of Participants with Non-serious Adverse Events (non-SAEs) and Serious Adverse Events (SAEs)
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Number of Participants with AEs by Severity
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Absolute value of Hematology parameter: Platelet count (cells per microliter)
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Absolute values of Hematology parameters: Reticulocytes (Percentage of reticulocytes)
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Absolute values of Hematology parameters: Hematocrit (Proportion of red blood cells in blood)
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Absolute values of Hematology parameters: Hemoglobin (Hgb) (grams per deciliter)
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C] , and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Absolute value of Hematology parameter: Red Blood Cell Count (RBC) (million cells per microliter)
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C] , and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Absolute value of Hematology parameter: Mean Corpuscle Volume (MCV) (Femtoliters)
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C] , and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Absolute value of Hematology parameter: Mean Corpuscle Hemoglobin (MCH) (Picograms)
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Absolute values of Hematology parameters: Differential count of Neutrophils, Lymphocytes, Monocytes, Eosinophils, Basophils (giga cells per liter)
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Absolute values of Clinical Chemistry parameters: Glucose (fasting), Blood Urea Nitrogen (BUN), Creatinine, Sodium, Potassium, Calcium, Direct Bilirubin and Total Bilirubin (milligrams per deciliter)
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Absolute values of Clinical Chemistry parameters: AST/SGOT, ALT/ SGPT, ALP and CPK (International Units per liter)
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])

Clinical chemistry parameters such as Aspartate Aminotransferase (AST) / Serum Glutamic-Oxaloacetic Transaminase (SGOT), Alanine Aminotransferase (ALT)/ Serum Glutamic-Pyruvic Transaminase and (SGPT), Alkaline phosphatase (ALP) and Creatinine Phosphokinase (CPK) will be analyzed.

Absolute values of Clinical chemistry parameters: Albumin and Total Protein (Grams per deciliter)
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Change from Baseline in Hematology parameter: Platelet count (cells per microliter)
Baseline (Day 1) and up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Change from Baseline in Hematology parameters: Reticulocytes (Percentage of reticulocytes)
Baseline (Day 1) and up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Change from Baseline in Hematology parameters: Hematocrit (Proportion of red blood cells in blood)
Baseline (Day 1) and up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Change from Baseline in Hematology parameters: Hgb (grams per deciliter)
Baseline (Day 1) and up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Change from Baseline in Hematology parameter: RBC Count (million cells per microliter)
Baseline (Day 1) and up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Change from Baseline in Hematology parameter: MCV (Femtoliters)
Baseline (Day 1) and up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Change from Baseline in Hematology parameter: MCH (picograms)
Baseline (Day 1) and up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Change from Baseline in Hematology parameters: Differential count of Neutrophils, Lymphocytes, Monocytes, Eosinophils, Basophils (Giga cells per liter)
Baseline (Day 1) and up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Change from Baseline in Clinical Chemistry parameters: Glucose (fasting), BUN, Creatinine, Sodium, Potassium, Calcium, Direct Bilirubin and Total Bilirubin (milligrams per deciliter)
Baseline (Day 1) and up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Change from Baseline in Clinical Chemistry parameters: AST/SGOT, ALT/ SGPT, ALP and CPK (International Units per liter)
Baseline (Day 1) and up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Change from Baseline in Clinical chemistry parameters: Albumin and Total Protein (Grams per deciliter)
Baseline (Day 1) and up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Number of participants with maximum toxicity grades increase from Baseline in hematology and clinical chemistry
Up to end of study (Week 78 for Cohorts C1 and C3 [Part C], Week 52 for Part A, Cohorts C2, C4, C5, C6, C7, C8, C9 [Part C], and Week 72 for Part E and Cohorts C10 and C11 [Part C])
Maximum Observed Concentration (Cmax) of Cabotegravir (CAB) Following Single IM Injection
Day 1 (pre-dose, 1 hour, 2 hours) and one post-dose sample on day 2, day 4, day 5, day 8, day 10, day 15, day 17, day 22, day 28, week 8, week 12, week 24, week 36 and week 52

Blood samples were collected at indicated time points for pharmacokinetic (PK) analysis of CAB.

Cmax of Rilpivirine (RPV) Following Single IM Injection
Day 1 (pre-dose, 1 hour, 2 hours) and one post-dose sample on day 2, day 4, day 5, day 8, day 10, day 15, day 17, day 22, day 28, week 8, week 12, week 24, week 36 and week 52

Blood samples were collected at indicated time points for PK analysis of RPV.

Time of Cmax (Tmax) of CAB Following Single IM Injection
Day 1 (pre-dose, 1 hour, 2 hours) and one post-dose sample on day 2, day 4, day 5, day 8, day 10, day 15, day 17, day 22, day 28, week 8, week 12, week 24, week 36 and week 52

Blood samples were collected at indicated time points for PK analysis of CAB.

Tmax of RPV Following Single IM Injection
Day 1 (pre-dose, 1 hour, 2 hours) and one post-dose sample on day 2, day 4, day 5, day 8, day 10, day 15, day 17, day 22, day 28, week 8, week 12, week 24, week 36 and week 52

Blood samples were collected at indicated time points for PK analysis of RPV.

Area Under the Plasma Concentration-time Curve (AUC) From Time Zero to Time (AUC[0-t]) of CAB Following Single IM Injection
Day 1 (pre-dose, 1 hour, 2 hours) and one post-dose sample on day 2, day 4, day 5, day 8, day 10, day 15, day 17, day 22, day 28, week 8, week 12, week 24, week 36 and week 52

Blood samples were collected at indicated time points for PK analysis of CAB.

AUC(0-t) of RPV Following Single IM Injection
Day 1 (pre-dose, 1 hour, 2 hours) and one post-dose sample on day 2, day 4, day 5, day 8, day 10, day 15, day 17, day 22, day 28, week 8, week 12, week 24, week 36 and week 52

Blood samples were collected at indicated time points for PK analysis of RPV.

AUC From Time Zero Extrapolated to Infinity (AUC[0-infinity]) of CAB Following Single IM Injection
Day 1 (pre-dose, 1 hour, 2 hours) and one post-dose sample on day 2, day 4, day 5, day 8, day 10, day 15, day 17, day 22, day 28, week 8, week 12, week 24, week 36 and week 52

Blood samples were collected at indicated time points for PK analysis of CAB.

AUC(0-infinity) of RPV Following Single IM Injection
Day 1 (pre-dose, 1 hour, 2 hours) and one post-dose sample on day 2, day 4, day 5, day 8, day 10, day 15, day 17, day 22, day 28, week 8, week 12, week 24, week 36 and week 52

Blood samples were collected at indicated time points for PK analysis of RPV.

Apparent Terminal Phase Half-life (t1/2) of CAB Following Single IM Injection
Day 1 (pre-dose, 1 hour, 2 hours) and one post-dose sample on day 2, day 4, day 5, day 8, day 10, day 15, day 17, day 22, day 28, week 8, week 12, week 24, week 36 and week 52

Blood samples were collected at indicated time points for PK analysis of CAB.

t1/2 of RPV Following Single IM Injection
Day 1 (pre-dose, 1 hour, 2 hours) and one post-dose sample on day 2, day 4, day 5, day 8, day 10, day 15, day 17, day 22, day 28, week 8, week 12, week 24, week 36 and week 52

Blood samples were collected at indicated time points for PK analysis of RPV.

Geometric Mean of Absorption Rate Constant (KALA) of CAB Following Single IM Injection
Day 1 (pre-dose, 1 hour, 2 hours) and one post-dose sample on day 2, day 4, day 5, day 8, day 10, day 15, day 17, day 22, day 28, week 8, week 12, week 24, week 36 and week 52

Blood samples were collected at indicated time points for PK analysis of CAB.

Geometric Mean of Absorption Rate Constant (KALA) of RPV Following Single IM Injection
Day 1 (pre-dose, 1 hour, 2 hours) and one post-dose sample on day 2, day 4, day 5, day 8, day 10, day 15, day 17, day 22, day 28, week 8, week 12, week 24, week 36 and week 52

Blood samples were collected at indicated time points for PK analysis of RPV.

Part 1 Injection 1: Time of Maximum Observed Plasma Concentration (Tmax) for CAB 400 mg/ml Formulation for Cohorts 1,2,3,4, 4b & 4h
Injection 1 - Day 1 to Week 4

Blood samples were collected for Pharmacokinetic (PK) analysis of CAB. PK parameter was determined using standard non-compartmental methods. The objective of this endpoint was to analyze data for participants that received CAB 400 mg/ml formulation, therefore results are presented for those groups only.

Part 1 Injection 2: Tmax for CAB 400 mg/ml Formulation for Cohorts 1,2,3,4 & 4b
Injection 2 - Day 1 to Week 52 follow-up

Blood samples were collected for PK analysis of CAB. PK parameter was determined using standard non-compartmental methods. The objective of this endpoint was to analyze data for participants that received CAB 400 mg/ml formulation, therefore results are presented for those groups only.

Part 2 Injection 1: Tmax for CAB 400 mg/ml Formulation for Cohort 5
Injection 1 - Day 1 to Week 12

Blood samples were collected for PK analysis of CAB after intramuscular (IM) administration. PK parameter was determined using standard non-compartmental methods. The objective of this endpoint was to analyze data for participants that received CAB 400 mg/ml formulation, therefore results are presented for those groups only.

Part 2 Injection 2: Tmax for CAB 400 mg/ml Formulation for Cohort 5
Injection 2 - Day 1 to Week 52 follow-up

Blood samples were collected for PK analysis of CAB after intramuscular (IM) administration. PK parameter was determined using standard non-compartmental methods. The objective of this endpoint was to analyze data for participants that received CAB 400 mg/ml formulation, therefore results are presented for those groups only.

Part 1 Injection 2: Apparent Terminal Phase Half-life (T1/2) for CAB 400 mg/ml Formulation for Cohorts 1,2,3,4 & 4b
Injection 2 - Week 4 to Week 52 follow-up

Blood samples were collected at indicated time points. The PK parameters were calculated by non-compartmental analysis. The objective of this endpoint was to analyze data for participants that received CAB 400 mg/ml formulation, therefore results are presented for those groups only.

Part 2 Injection 2: T1/2 for CAB 400 mg/ml Formulation for Cohort 5
Injection 2 - Week 12 to Week 52 follow-up

Blood samples were collected for PK analysis of CAB after intramuscular (IM) administration. PK parameter was determined using standard non-compartmental methods. The objective of this endpoint was to analyze data for participants that received CAB 400 mg/ml formulation, therefore results are presented for those groups only.

Part 1 Injection 2: Terminal Absorption Elimination Rate Constant (KALA) for CAB 400 mg/ml Formulation for Cohorts 1,2,3,4 & 4b
Injection 2 - Week 4 to Week 52 follow-up

KALA defined as the rate at which a drug is absorbed into the bloodstream after administration. Blood samples were collected at indicated time points. PK parameters were determined using standard non-compartmental methods. The objective of this endpoint was to analyze data for participants that received CAB 400 mg/ml formulation, therefore results are presented for those groups only.

Part 2 Injection 2: KALA for CAB 400 mg/ml Formulation for Cohort 5
Injection 2 - Week 12 to Week 52 follow-up

KALA defined as the rate at which a drug is absorbed into the bloodstream after administration. Blood samples were collected at indicated time points. PK parameters were determined using standard non-compartmental methods. The objective of this endpoint was to analyze data for participants that received CAB 400 mg/ml formulation, therefore results are presented for those groups only.

Part 1 Injection 1: Plasma Trough Concentrations (Ctau) of CAB 400 mg/ml Formulation for Cohorts 1,2,3,4, 4b & 4h
Injection 1 - Day 1 to Week 4

Blood samples were collected for PK analysis of CAB. Ctau is the trough concentration at the end of the dosing interval. PK parameter was determined using standard non-compartmental methods. The objective of this endpoint was to analyze and compare the data for participants that received CAB 400 mg/ml formulation in this study, and historical data for CAB 200 mg/mL in ATLAS /FLAIR studies.

Part 1 Injection 2: Ctau of CAB 400 mg/ml Formulation for Cohorts 1,2,3,4, 4b
Injection 2 - Day 1 to Week 4

Blood samples were collected for PK analysis of CAB. Ctau is the trough concentration at the end of the dosing interval. PK parameter was determined using standard non-compartmental methods. The objective of this endpoint was to analyze and compare the data for participants that received CAB 400 mg/ml formulation in this study, and historical data for CAB 200 mg/mL in ATLAS /FLAIR studies.

Part 2 Injection 1: Ctau of CAB 400 mg/ml Formulation for Cohort 5
Injection 1 - Day 1 to Week 12

Blood samples were collected for PK analysis of CAB. PK parameter was determined using standard non-compartmental methods. Ctau is the trough concentration at the end of the dosing interval. Ctau was expressed as geometric mean. For ATLAS /FLAIR: Historical data of CAB200 group, the geometric mean following dose normalization to 800mg was presented. The objective of this endpoint was to analyze and compare the data for participants that received CAB 400 mg/ml formulation in this study, and historical data for CAB 200 mg/mL in ATLAS /FLAIR and ECLAIRE studies.

Part 1 Injection 1: Area Under the Concentration Time Curve From Time Zero to Last Quantifiable Time Point (AUC(0-t)) of CAB 400 mg/ml Formulation for Cohorts 1, 2, 3, 4, 4b and 4h
Injection 1 - Day 1 to Week 4

Blood samples were collected for PK analysis of CAB. The PK parameters were calculated by non-compartmental analysis. The objective of this endpoint was to analyze data for participants that received CAB 400 mg/ml formulation, therefore results are presented for those groups only.

Part 1 Injection 2: AUC(0-t) of CAB 400 mg/ml Formulation for Cohorts 1, 2, 3, 4 and 4b
Injection 2 - Day 1 to Week 4

Blood samples were collected for PK analysis of CAB. The PK parameters were calculated by non-compartmental analysis. The objective of this endpoint was to analyze data for participants that received CAB 400 mg/ml formulation, therefore results are presented for those groups only.

Part 1 Injection 1: Maximum Observed Plasma Concentration (Cmax) of CAB 400 mg/ml Formulation for Cohorts 1, 2, 3, 4, 4b and 4h
Injection 1 - Day 1 to Week 4

The objective of this endpoint was to analyze data for participants that received CAB 400 mg/ml formulation, therefore results are presented for those groups only.

Part 1 Injection 2: Cmax of CAB 400 mg/ml Formulation for Cohorts 1, 2, 3, 4, 4b
Injection 2 - Day 1 to Week 4

The objective of this endpoint was to analyze data for participants that received CAB 400 mg/ml formulation, therefore results are presented for those groups only.

Number of Participants With Non-serious Adverse Events (AEs) and Serious AEs (SAEs): Injection Phase
Week 5 to 41

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. SAE is defined as any untoward medical occurrence that, at any dose results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent disability/incapacity, is a congenital anomaly/birth defect, or other situations as per investigator's judgement.

Number of Participants With Maximum Toxicity Post-Baseline in Hematology Parameters-Injection Phase
Week 5 to 41

Hematology parameters were graded according to Division of Acquired Immunodeficiency Syndrome (DAIDS) Table for Grading the Severity of Adult and Pediatric Adverse Events as Grade 0: none, Grade 1: mild; Grade 2: moderate; Grade 3: severe; and Grade 4: potentially life-threatening consequences. Higher grade indicates more severity. Clinical hematology parameters included: Activated partial thromboplastin time (APTT) prolonged, hemoglobin (Hb) (increased), white blood cells (WBC) (decreased), lymphocytes count (decreased), neutrophils (decreased), platelets (decreased), prothrombin international normalized ratio (Pro.INR) (increased). Baseline was the last available assessment prior to the time of the first dose. Maximum toxicity grade reached by a participant post-Baseline was summarized.

Number of Participants With Maximum Toxicity Post-Baseline in Chemistry Parameters: Injection Phase
Week 5 to 41

Chemistry parameters were graded according to DAIDS Table for Grading the Severity of Adult and Pediatric Adverse Events as Grade 0: none, Grade 1: mild; Grade 2: moderate; Grade 3: severe; and Grade 4: potentially life-threatening consequences. Higher grade indicates more severity. Clinical chemistry laboratory parameters included alanine amino transferase (ALT), albumin, alkaline phosphatase (ALP), Aspartate Aminotransferase (AST), bilirubin, calcium (hypercalcemia and hypocalcemia), carbon dioxide (CO2) (decreased), cholesterol (high), Creatine phosphokinase (CPK) increased, Creatinine increased, creatinine clearance (decreased), glucose (hyperglycemia and hypoglycemia), Hypophosphatemia, Potassium (Hyperkalemia and hypokalemia), Sodium (hypernatremia and hyponatremia), Hypertriglyceridemia, uric acid (increased). Baseline was the last available assessment prior to the time of the first dose. Maximum toxicity grade reached by a participant post-Baseline was summarized.

Number of Participants With Maximum Toxicity Post-Baseline in Urinalysis Parameters: Injection Phase
Week 5 to 41

Urinalysis parameters were graded according to DAIDS Table for Grading the Severity of Adult and Pediatric Adverse Events as Grade 0: none, Grade 1: mild; Grade 2: moderate; Grade 3: severe; and Grade 4: potentially life-threatening consequences. Urinalysis parameters included: Protein. Baseline was the last available assessment prior to the time of the first dose. Maximum toxicity grade reached by a participant post-Baseline was summarized.

Number of Participants With Shift From Baseline in Vital Signs With Respect to Clinical Concern Range: Injection Phase
Week 5 to 41

Vital signs were measured after participants had rested in supine position for at least 5 minutes. Clinical concern ranges were: systolic blood pressure (SBP) (Low: \<85 millimeters of mercury \[mmHg\], High: \>160 mmHg), diastolic blood pressure (DBP) (Low: \<45 mmHg, High: \>100 mmHg), pulse rate (Low: \<40 mmHg, High: \>100 mmHg). Worst case results are presented. Participants were counted in the worst case category that their value changes to (Low, Normal or High), unless there was no change in their category. Participants whose value category was unchanged (e.g., High to High), or whose value became normal, were recorded in the 'To Normal or No Change' category. Participants were counted twice if the participant had values that changed 'To Low' and 'To High', so the percentages may not add to 100%.

Number of Participants Withdrawn Due to AEs- Injection Phase
Week 5 to 41

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. Number of participants withdrawn from study due to AEs is presented.

Number of Participants Experiencing Injection Site Reactions (ISR)-Injection Phase
Week 5 to 41

Injection site reactions were recorded via ISR diaries and managed through investigator assessment. Number of participants who experienced any injection site reaction (like pain, itching, bruising, bump, discoloration, redness, skin firmness, swelling, warm to touch etc.) is presented.

Concentration of Cabotegravir in Plasma at the End of the Dosing Interval (Ctau)-Oral lead-in Phase
Day 27: Pre-dose and at 1, 2, 3, 4, 8, 24 and 168 hours post-dose

Blood samples were collected at the indicated time points for the determination of Ctau following oral dose of Cabotegravir and was calculated by standard non-compartmental analysis.

Area Under the Plasma Concentration Time Curve Over the Dosing Interval (AUC[0-tau]) Following Oral Dosing of Cabotegravir-Oral lead-in Phase
Day 27: Pre-dose and at 1, 2, 3, 4, 8, 24 and 168 hours post-dose

Blood samples were collected at the indicated time points for the determination of AUC(0-tau) following oral dose of Cabotegravir and was calculated by standard non-compartmental analysis.

Maximum Observed Concentration (Cmax) Following Oral Dosing With Cabogegravir-Oral lead-in Phase
Day 27: Pre-dose and at 1, 2, 3, 4, 8, 24 and 168 hours post-dose

Blood samples were collected at the indicated time points for the determination of Cmax following oral dose of Cabotegravir and was calculated by standard non-compartmental analysis.

Time of Occurrence of Cmax (Tmax) Following Oral Dosing With Cabotegravir-Oral lead-in Phase
Day 27: Pre-dose and at 1, 2, 3, 4, 8, 24 and 168 hours post-dose

Blood samples were collected at the indicated time points for the determination of Tmax following oral dose of Cabotegravir and was calculated by standard non-compartmental analysis.

Apparent Clearance Following Oral Dosing (CL/F) Following Dosing With Cabotegravir-Oral lead-in Phase
Day 27: Pre-dose and at 1, 2, 3, 4, 8, 24 and 168 hours post-dose

Blood samples were collected at the indicated time points for the determination of CL/F following oral dose of Cabotegravir and was calculated by standard non-compartmental analysis.

Terminal Absorption Elimination Half-life (t1/2) Following Oral Dosing With Cabotegravir-Oral lead-in Phase
Day 27: Pre-dose and at 1, 2, 3, 4, 8, 24 and 168 hours post-dose

Blood samples were collected at the indicated time points for the determination of t1/2 following oral dose of Cabotegravir and was calculated by standard non-compartmental analysis.

Apparent Terminal Phase Rate Constant (Lambda z) Following Oral Dosing With Cabotegravir-Oral lead-in Phase
Day 27: Pre-dose and at 1, 2, 3, 4, 8, 24 and 168 hours post-dose

Blood samples were collected at the indicated time points for the determination of Lambda z following oral dose of Cabotegravir and was calculated by standard non-compartmental analysis.

Volume of Distribution at Steady State (Vss) Following Oral Dosing With Cabotegravir-Oral lead-in Phase
Day 27: Pre-dose and at 1, 2, 3, 4, 8, 24 and 168 hours post-dose

Blood samples were collected at the indicated time points for the determination of Vss following oral dose of Cabotegravir and was calculated by standard non-compartmental analysis.

Ctau Following IM Dosing With CAB LA During Injection Phase
Pre-dose sample on Weeks 5, 9, 17, 25, 33; Post-dose sample on Weeks 6, 10, 18, 26, 34, 37, 41

Blood samples were collected at the indicated time points for the determination of Ctau following IM dose of CAB LA and was calculated by standard non-compartmental analysis.

AUC(0-tau) Following IM Dosing With CAB LA During Injection Phase
Pre-dose sample on Weeks 5, 9, 17, 25, 33; Post-dose sample on Weeks 6, 10, 18, 26, 34, 37, 41

Blood samples were collected at the indicated time points for the determination of AUC (0-tau) following IM dose of CAB LA and was calculated by standard non-compartmental analysis.

Cmax Following IM Dosing With CAB LA During Injection Phase
Pre-dose sample on Weeks 5, 9, 17, 25, 33; Post-dose sample on Weeks 6, 10, 18, 26, 34, 37, 41

Blood samples were collected at the indicated time points for the determination of Cmax following IM dose of CAB LA and was calculated by standard non-compartmental analysis.

Tmax Following IM Dosing With CAB LA During Injection Phase
Pre-dose sample on Weeks 5, 9, 17, 25, 33; Post-dose sample on Weeks 6, 10, 18, 26, 34, 37, 41

Blood samples were collected at the indicated time points for the determination of Tmax following IM dose of CAB LA and was calculated by standard non-compartmental analysis.

Assessment of Plasma CAB Pharmacokinetic (PK) Parameter: Area Under the Concentration-time Curve Over One Dosing Interval (AUC [0 to Tau])
Pre-dose (within 15 minutes prior to dose) on Days 13 and 14; and 1, 2, 3, 4, 8, 12, and 24 hours post-dose on Day 14, pre-dose (within 15 minutes prior to dose) on Days 26, 27 and 28; and 1, 2, 3, 4, 8, 12 and 24 hours post-dose on Day 28

Blood samples for PK analysis of CAB were collected at pre-dose (within 15 minutes prior to dose) on Days 13 and 14; and 1, 2, 3, 4, 8, 12, and 24 hours post-dose on Day 14, pre-dose (within 15 minutes prior to dose) on Days 26, 27 and 28; and 1, 2, 3, 4, 8, 12 and 24 hours post-dose on Day 28. AUC (0 to tau) was calculated using the linear trapezoidal rule for each incremental trapezoid and the log trapezoidal rule for each decremental trapezoid. PK Summary Population included participants who had CAB PK parameter estimates from both serial PK sampling time periods 1 and 2. Comparisons were made for the repeated dose PK parameters of CAB when given alone in Period 1 and when co-administered with steady-state RBT in Period 2.

Assessment of Plasma CAB PK Parameter: Maximum Observed Concentration (Cmax)
Pre-dose (within 15 minutes prior to dose) on Days 13 and 14; and 1, 2, 3, 4, 8, 12, and 24 hours post-dose on Day 14, pre-dose (within 15 minutes prior to dose) on Days 26, 27 and 28; and 1, 2, 3, 4, 8, 12 and 24 hours post-dose on Day 28

Blood samples for PK analysis of CAB were collected at pre-dose (within 15 minutes prior to dose) on Days 13 and 14; and 1, 2, 3, 4, 8, 12, and 24 hours post-dose on Day 14, pre-dose (within 15 minutes prior to dose) on Days 26, 27 and 28; and 1, 2, 3, 4, 8, 12 and 24 hours post-dose on Day 28. Cmax was determined directly from the concentration-time data. Comparisons were made for the repeated dose PK parameters of CAB when given alone in Period 1 and when co-administered with steady-state RBT in Period 2.

Area under the concentration time curve from time zero (pre dose) extrapolated to infinite time of cabotegravir
Pre dose, 0.5 hour (h), 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h post dose on Day(D) 1, D 2, D 3, D 4, D 6, D 8 each for Period 1 and Period 2

AUC (0 infinity\[inf\]) is defined as the area under cabotegravir plasma concentration time curve from time zero (pre dose) extrapolated to infinite time.

Area under the concentration time curve from time zero (pre dose) to last time of quantifiable concentration of cabotegravir
Pre dose, 0.5 h, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h post dose on D 1, D 2, D 3, D 4, D 6, D 8 each for Period 1 and Period 2

AUC (0-t) is defined as area under cabotegravir plasma concentration time curve from time zero (pre dose) to the last time of quantifiable concentration.

Maximum observed plasma concentration of cabotegravir
Pre dose, 0.5 h, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h post dose on D 1, D 2, D 3, D 4, D 6, D 8 each for Period 1 and Period 2

Cmax is defined as the maximum observed plasma concentration of cabotegravir.

Concentration of cabotegravir at 24 hours post dose (C24)
Pre dose, 0.5 h, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h post dose on D 1, D 2, D 3, D 4, D 6, D 8 each for Period 1 and Period 2

C24 is defined as the plasma concentration at 24 hours after administration of cabotegravir.

Plasma CAB maximum observed concentration after single dose administration (Cmax)
Days 1, 2, 3, 4, 6, 8, 21, 22, 23, 24, 26, and 28

Plasma PK samples collected at the following time points: Period 1 pre-dose (within 15 minutes prior to dosing), 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48 (Day 3), 72 (Day 4), 120 (Day 6), 168 hours post dose. Period 3 pre-dose Day 21 (within 15 minutes prior to dosing), 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48 (Day 3), 72 (Day 4), 120 (Day 6), 168 hours (Day 8) post dose.

Plasma CAB area under the concentration versus time from time zero to infinity after single dose administration (AUC(0-∞))
Days 1, 2, 3, 4, 6, 8, 21, 22, 23, 24, 26, and 28

Plasma PK samples collected at the following time points: Period 1 pre-dose (within 15 minutes prior to dosing), 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48 (Day 3), 72 (Day 4), 120 (Day 6), 168 hours post dose. Period 3 pre-dose Day 21 (within 15 minutes prior to dosing), 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48 (Day 3), 72 (Day 4), 120 (Day 6), 168 hours (Day 8) post dose.

Composite of pharmacokinetic (PK) parameters for cabotegravir evaluated by measurement of plasma AUC (0-infinity), AUC (0-t) and Cmax and C24
Pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 120 and 168 hours post dose.

To evaluate the relative bioavailability of cabotegravir after single 30 mg dose in the fasted state, the following PK parameters will be assessed: area under the concentration-time curve from time zero (pre-dose) extrapolated to infinite time (AUC(0-infinity)), area under the concentration-time curve from time zero (pre-dose) to last time of quantifiable concentration within a subject across all treatments (AUC (0-t)), maximum observed concentration (Cmax) and concentration at 24 hours post-dose (C24)

Secondary Endpoints

Percentage of participants with plasma HIV-RNA >= 50 c/mL as per FDA Snapshot algorithm
At Month 23
Percentage of participants with plasma HIV-RNA less than (<) 50 c/mL as per FDA Snapshot algorithm
At Month 11 and Month 23
Percentage of participants with confirmed virologic failure (CVF)
Up to Month 23
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
CAB ULA+ RPV ULAEXPERIMENTALParticipants will receive CAB ULA+RPV ULA.
CAB LA+ RPV LAACTIVE_COMPARATORParticipants will receive CAB LA+RPV LA.
CAB LA + RPV LA GroupEXPERIMENTALParticipants receive initial injections at Day 1 and Month 1, followed by maintenance injections every 2 months for up to 24 months.
Oral ART Control GroupACTIVE_COMPARATORParticipants continue to take their current oral ART for 6 months, including a final dose at their first injection visit.
CAB LA 600 mg (Q8W)EXPERIMENTALAll enrolled participants have previously received CAB LA as part of the HPTN 083 and HPTN 084 parent studies or their sub-studies. Participants will continue receiving CAB LA 600 mg via gluteal intramuscular (IM) injection.
Cabotegravir Long Acting (CAB LA) 400 Milligrams (mg) + Rilpivirine Long Acting (RPV) LA 600 mgEXPERIMENTALParticipants received an intramuscular (IM) injection of CAB LA 400 mg and RPV LA 600 mg on week -4 during the Screening phase. Participants then received a sub-cutaneous (SC) injection of CAB LA 400 mg + RPV LA 600 mg on Day 1 of Week 1, Week 4 and Week 8 (once in every 4 weeks (Q4W)) for a total of 12 weeks during the SC abdominal Injection Phase. 4 weeks later, participants returned to the clinic for an IM gluteal injection (at Week 12) of CAB LA 400 mg + RPV LA 600 mg during the Return to Gluteal Injection Phase and subsequent gluteal injection occurred after Q4W at Week 16.
Participants receiving CAB LA 400 milligrams (mg) and RPV LA 600 mgEXPERIMENTALParticipants will receive an Intramuscular (IM) injection of CAB LA 400 mg on one lateral thigh and RPV LA 600 mg into the opposite lateral thigh on Day 1 in every 4 weeks (Q4W) for a total of 16 weeks during Thigh injection phase. Participants will then return to the clinic 4 weeks later to receive their first IM gluteal injection (at Week 16) of CAB LA 400 mg and RPV LA 600 mg during the Return to Gluteal Injection Phase. The subsequent gluteal injection will occur at Week 20.
Participants receiving CAB LA 600 mg and RPV LA 900 mgEXPERIMENTALParticipants will receive an IM injection of CAB LA 600 mg on one lateral thigh and RPV LA 900 mg into the opposite lateral thigh on Day 1 in every 8 weeks (Q8W) for a total of 16 weeks during Thigh injection phase. Participants will then return to the clinic 8 weeks later receive their first IM gluteal injection (at Week 16) of CAB LA 600mg and RPV LA 900 mg during the Return to Gluteal Injection phase. The subsequent gluteal injection will occur at Week 24.
Biktarvy (BIK)ACTIVE_COMPARATORParticipants with HIV-1 received BIK tablet orally until month 12. BIK was a fixed dose combination of 50 mg Bictegravir (BIC) + 200 mg Emtricitabine (FTC) + 25 mg Tenofovir alafenamide (TAF).
Oral lead-in phase (OLI)EXPERIMENTALParticipants with human immunodeficiency viruses (HIV)-1 who chose oral lead in (OLI) received oral 30 milligram (mg) Cabotegravir (CAB) tablet + 25 mg Rilpivirine (RPV) tablet once daily (QD) for one month. At the month 1 visit, the last dose of oral CAB + RPV was given, followed by the first 600 mg CAB long-acting (LA) + 900 mg RPV LA intramuscular injection (IM), and second injection of CAB LA 600 mg + RPV LA 900 mg at month 2, and then subsequent injections once every 2 months (Q2M) until Month 12 (Maintenance Phase). The participants had the option to continue the regimen in the Extension Phase
Direct to injections (D2I)EXPERIMENTALParticipants with HIV-1 who chose direct to injections (D2I) received the first injections of 600 mg CAB LA + 900 mg RPV LA, IM as initial loading doses at Day 1 one month, followed by second and third subsequent injections (CAB LA 600 mg + RPV LA 900 mg) at month 1 and month 3 followed by Q2M until Month 11. The participants had the option to continue the regimen in the Extension Phase.
Switch Q2M GroupACTIVE_COMPARATOREligible participants with HIV-1 who received BIK tablet orally switched treatment after month 12 (Extension Phase) to CAB LA 600 mg + RPV LA 900 mg regimen, administered once every 2 months.
Subjects with HIV infectionEXPERIMENTALHIV-infected subjects receiving CAB LA+RPV LA will be included in this arm.
Subjects in group 1 receiving study treatment once in 4 weeksEXPERIMENTALGroup 1 will consist of subjects randomized from current ART SOC therapy. Subjects in group 1 will be randomized to receive CAB LA plus RPV LA Q4W via intramuscular (IM) route. All subjects will receive oral therapy with CAB 30 mg + RPV 25 mg once daily prior to randomization.
Subjects in group 1 receiving study treatment once in 8 weeksEXPERIMENTALGroup 1 will consist of subjects randomized from current ART SOC therapy. Subjects in group 1 will be randomized to receive CAB LA plus RPV LA Q8W via IM route. All subjects will receive oral therapy with CAB 30 mg + RPV 25 mg once daily prior to randomization.
Subjects in group 2 receiving study treatment once in 4 weeksEXPERIMENTALGroup 2 will consist of subjects currently receiving CAB LA + RPV LA Q4W in ATLAS study. Subjects in Group 2 will be randomized to continue CAB LA plus RPV LA Q4W administration via IM route.
Subjects in group 2 receiving study treatment once in 8 weeksEXPERIMENTALGroup 2 will consist of subjects currently receiving CAB LA + RPV LA Q4W in ATLAS study. Subjects in Group 2 will be randomized to receive CAB LA plus RPV LA Q8W via IM route.
CAB LA + RPV LA every 4 weeksEXPERIMENTALEligible subjects receive Oral CAB 30 mg + RPV 25 mg once daily for four weeks, IM CAB LA 600 mg and RPV LA 900 mg for the first injection, and Week 4 onwards subjects will receive CAB LA (400 mg) + RPV LA (600 mg) injections every 4 weeks until withdrawal.
Current antiretroviral regimenACTIVE_COMPARATOREligible subjects will continue their current anti-retroviral regimen (2 NRTIs plus an INI, NNRTI, or a PI) for 52 weeks. After 52 weeks subjects have the option to continue study participation by switching to CAB LA + RPV LA in the Extension Phase where they will follow the procedure of CAB LA + RPV LA arm.
ABC / DTG / 3TC (600 mg/50mg/300mg) once dailyACTIVE_COMPARATORAfter the Induction Phase with ABC/DTG/3TC (or DTG + two NRTIs), eligible participants will continue to receive oral ABC/DTG/3TC (or DTG + two NRTIs) initiated during the Induction Phase for 100 weeks. At the end of the Maintenance Phase, eligible participants receiving ABC/DTG/3TC (or DTG + two NRTIs) have the option to continue in the study by switching to CAB LA + RPV LA in the Extension Phase. These participants will transition to LA dosing at either Week 100 (direct to inject) or Week 104b (if using optional oral lead-in with CAB 30 mg + RPV 25 mg once daily).
CAB GroupEXPERIMENTALParticipants receive lead-in injections comprising cabotegravir LA during month one and injections of a new formulation of CAB LA at Month 3, Month 5 and every 4 months thereafter to Month 29.
Pharmacist lead CDTM+OTHERParticipants will meet with a clinic-based pharmacist via telehealth for an introductory visit to discuss CAB/RPV LA and possible switch from oral to injectable therapy. The tele-visit can occur by phone or video visit.
CAB LA + RPV LA Q2MEXPERIMENTALEligible participants from LAI116482 (NCT01641809 \[LATTE\]) study who were administered oral CAB 30 milligrams (mg) plus RPV 25 mg and who successfully completed Week 300 received their first dose CAB LA (600 mg) plus RPV LA (900 mg) injections within 2 hours of the final oral dose of LATTE given on the same day. The second loading injections were administered 1 month after initial loading dose, with subsequent injections (CAB LA 600 mg + RPV LA 900 mg) occurring Q2M thereafter. Participants continued to receive the treatment until the study intervention was locally approved and commercially available. Participants who received at least one dose of CAB LA and/or RPV LA and discontinued the CAB LA + RPV LA regimen for any reason entered a 52-week long-term follow-up (LTFU) Phase.
DTG + RPVEXPERIMENTALEligible participants from LAI116482 (NCT01641809 \[LATTE\]) study who were administered oral CAB 30 mg plus RPV 25 mg and who successfully completed Week 300 received their first dose of the Dolutegravir (DTG) 50 mg plus RPV 25 mg, once daily as oral regimen on Day 1 until Month 12 in the current study. These participants were not eligible for the LTFU phase.
LTFU: CAB LA+RPV LA Q2M GroupEXPERIMENTALThis group included the participants who received at least one dose of CAB LA and/or RPV LA and discontinued the CAB LA + RPV LA regimen for any reason before end of Maintenance Period. The participants entered a 52-week LTFU period.
CAB LA 600 mg+RPV LA 900 mg IM-Q8W (Maintenance and Extension Period)EXPERIMENTALOn Day 1 of the Maintenance period, participants who successfully completed the Induction period, were randomized to receive following intramuscular (IM) doses: Day 1 only: CAB long acting (LA) 800 mg (loading dose delivered as two 400 mg IM injections) + RPV LA 900 mg IM; Week 4 only: CAB LA 600 mg IM (second loading dose, no RPV); and from Week 8: CAB LA 600 mg IM +RPV LA 900 mg IM every 8 Weeks (Q8W) for 96 weeks. Eligible participants had the option to continue study participation in the Extension Period.
CAB LA 400 mg+RPV LA 600 mg IM-Q4W (Maintenance and Extension Period)EXPERIMENTALOn Day 1 of the Maintenance period, participants who successfully completed the Induction period, were randomized to receive following IM doses: Day 1 only: CAB LA 800 mg (loading dose delivered as two 400 mg IM injections) + RPV LA 600 mg IM; and from Week 4: CAB LA 400 mg IM + RPV LA 600 mg IM every 4 Weeks (Q4W) for 96 weeks. Eligible participants had the option to continue study participation in the Extension Period.
CAB 30 mg+ABC/3TC QD (Induction Period)ACTIVE_COMPARATORIn induction period, all participants received an oral regimen of cabotegravir (CAB) 30 milligrams (mg) once daily (QD) plus abacavir/lamivudine (ABC/3TC) 600/300 mg QD for 20 weeks. They also received an oral dose of Rilpivirine (RPV) 25 mg tablet once daily in the last 4 weeks of the Induction Period.
CAB 30 mg+ABC/3TC QD (Induction Period and Maintenance Period)ACTIVE_COMPARATOROn Day 1 of the Maintenance period, participants who successfully completed the Induction period, were randomized to receive CAB and ABC/3TC QD for 96 weeks. Eligible participants had the option to continue study participation in Extension Period by switching to an optimized IM CAB LA+ RPV LA regimen of their choice (Q8W or Q4W).
Optimized CAB LA 600 mg+RPV LA 900 mg IM-Q8W (Extension Period)EXPERIMENTALParticipants who completed 96 weeks of CAB 30 mg + ABC/3TC QD regimen in Maintenance Period transitioned to Extension Period and received an optimized loading dose of CAB LA 600 mg+RPV LA 900 mg IM at Week 100 and Week 104 followed by CAB LA 600 mg+RPV LA 900 mg IM-Q8W in the Extension Phase. Participants were followed up until end of Extension Period.
Optimized CAB LA 400 mg+RPV LA 600 mg IM-Q4W (Extension Period)EXPERIMENTALParticipants who completed 96 weeks of CAB 30 mg + ABC/3TC QD regimen in Maintenance Period transitioned to Extension Period and received an optimized loading dose of CAB LA 400 mg+RPV LA 900 mg IM at Week 100 followed by CAB LA 400 mg+RPV LA 900 mg IM-Q8W in the Extension Phase. Participants were followed up until end of Extension Period.
Long-Term Follow-Up GroupOTHERThis group included participants that were withdrawn from CAB LA+RPV LA IM regimens based on protocol criteria and were required to access Highly Active Antiretroviral Therapy (HAART) of choice. Participants were followed up for approximately 52 weeks.
Stage 1: Single Oral Dose CAB (Cohort 1) groupEXPERIMENTALParticipants receive a single dose of oral CAB suspension on study Day 1.
Stage 1: Multiple Oral Dose CAB (Cohort 2) groupEXPERIMENTALParticipants receive repeat doses of oral CAB suspension starting on study Day 1. Dose and dosing frequency to be determined based on data from Cohort 1.
Stage 2: Single IM Dose CAB LA (Cohort 3) groupEXPERIMENTALParticipants receive a single IM dose of CAB LA on study Day 1. Dose to be determined based on data from Cohort 2.
Stage 2: Multiple IM Dose CAB LA (Cohort 4) groupEXPERIMENTALParticipants receive repeat IM doses of CAB LA starting on study Day 1. Dose and dosing frequency to be determined based on data from Cohort 3.
CAB LA/LEN LA GroupEXPERIMENTALParticipants receive the CAB LA injection at Day 1 followed by the LEN LA injections at Day 15.
LEN LA/CAB LA GroupEXPERIMENTALParticipants receive the LEN LA injections at Day 1 followed by the CAB LA injection at Day 15.
Part A: Participants receiving CAB 200 mg/mL with rHuPH20EXPERIMENTALPart A of the study (CAB 200 mg/mL with rHuPh20) has been closed to further enrolment based on preliminary results.
Part C: Participants receiving CAB >=400 mg/mL or CAB Formulation I or CAB Formulation JEXPERIMENTAL -
Part E: Participants receiving RPVEXPERIMENTAL -
OLI phase followed by Injection phaseEXPERIMENTALParticipants will be administered cabotegravir at a dose of 30 mg plus rilpivirine dose of 25 mg once daily with meal on Day 1 to Day 28 in OLI phase. There will be 10 to 14 days wash out period after OLI. This will be followed by an injection phase, wherein participants will receive 600 mg cabotegravir long acting given as one 3 milliliter (mL) IM injection plus 900 mg rilpivirine long acting given as one 3 mL IM injection on Day 1.
Oral Cabotegravir (CAB) 30EXPERIMENTALParticipants received oral dose of CAB 30 milligram (mg) tablet once daily for Days 1 to 28 in the oral lead in phase.
Part 1: Cohort 1 (C1) CAB 400EXPERIMENTALFollowing receipt of oral CAB 30 in the OLI phase, participants received two injections of CAB 400 milligram per milliliter (mg/mL) (Injection 1: 600 mg and Injection 2: 400 mg respectively) intramuscularly in the gluteus medius, at Day 1 of Injection Phase and approximately at Week 4 of Injection Phase.
Part 1: Cohort 1 (C1) CAB200ACTIVE_COMPARATORFollowing receipt of oral CAB 30 in the OLI phase, participants received two injections of CAB 200 mg/mL (Injection 1: 600 mg and Injection 2: 400 mg respectively) intramuscularly in the gluteus medius, at Day 1 of Injection Phase and approximately at Week 4 of Injection Phase.
Part 1: Cohort 2 (C2) CAB400EXPERIMENTALFollowing receipt of oral CAB 30 in the OLI phase, participants received two injections of CAB 400 milligram per milliliter (mg/mL) (Injection 1: 600 mg and Injection 2: 400 mg respectively) subcutaneously in the abdomen, at Day 1 of Injection Phase and approximately at Week 4 of Injection Phase.
Part 1: Cohort 2 (C2) CAB200ACTIVE_COMPARATORFollowing receipt of oral CAB 30 in the OLI phase, participants received two injections of CAB 200 mg/mL (Injection 1: 300 mg and Injection 2: 200 mg respectively) subcutaneously in the abdomen, 4 weeks apart, at Day 1 of Injection Phase and approximately at Week 4 of Injection Phase.
Part 1: Cohort 3 (C3) CAB400EXPERIMENTALFollowing receipt of oral CAB 30 in the OLI phase, participants received two injections of CAB 400 milligram per milliliter (mg/mL) (Injection 1: 600 mg and Injection 2: 400 mg respectively) intramuscularly in the lateral thigh, at Day 1 of Injection Phase and approximately at Week 4 of Injection Phase.
Part 1: Cohort 3 (C3) CAB200ACTIVE_COMPARATORFollowing receipt of oral CAB 30 in the OLI phase, participants received two injections of CAB 200 mg/mL (Injection 1: 600 mg and Injection 2: 400 mg respectively) intramuscularly in the lateral thigh, at Day 1 of Injection Phase and approximately at Week 4 of Injection Phase.
Part 1: Cohort 4 (C4) CAB400EXPERIMENTALFollowing receipt of oral CAB 30 in the OLI phase, participants received two injections of CAB400 mg/mL (Injection 1: 400 mg and Injection 2: 200 mg respectively) at Day 1 of Injection Phase and approximately at Week 4 of Injection Phase, with the first injection in the gluteus medius intramuscularly and the second subcutaneously.
Part 1: Cohort 4 (C4) CAB200ACTIVE_COMPARATORFollowing receipt of oral CAB 30 in the OLI phase, participants received two injections of CAB 200 mg/mL (Injection 1: 400 mg and Injection 2: 100 mg respectively) at Day 1 of Injection Phase and approximately at Week 4 of Injection Phase, with the first injection in the gluteus medius intramuscularly and the second subcutaneously.
Part 1: Cohort 4b Group 1 (C4b G1)EXPERIMENTALFollowing receipt of oral CAB 30 in the OLI phase, all participants received two injections of 300 mg of CAB 400 mg/mL subcutaneously, at Day 1 of Injection Phase and approximately at Week 4 of Injection Phase, The participants received a topical non-steroidal anti-inflammatory drug (NSAID) and topical steroid placebo with Injection 1, a topical steroid and NSAID placebo with Injection 2.
Part 1: Cohort 4b Group 2 (C4b G2)EXPERIMENTALFollowing receipt of oral CAB 30 in the OLI phase, all participants received two injections of 300 mg of CAB 400 mg/mL subcutaneously 4 weeks apart. The participants received a topical steroid and NSAID placebo with injection 1, NSAID and topical steroid placebo with injection 2.
Part 1: Cohort 4h (C4h) CAB400 + rHuPH20EXPERIMENTALFollowing receipt of oral CAB 30 in the OLI phase, participants received one subcutaneous injection of 400 mg of CAB 400 mg/mL along with 5000 units (U) of recombinant human hyaluronidase PH20 (rHuPH20) sequentially.
Part 1: Cohort 4h (C4h) CAB200 + rHuPH20EXPERIMENTALFollowing receipt of oral CAB 30 in the OLI phase, participants received one subcutaneous injection of 400 mg of CAB 200 mg/mL along with 5000 U of rHuPH20 sequentially.
Part 2: Cohort 5 (C5) CAB400EXPERIMENTALFollowing receipt of oral CAB 30 in the OLI phase, participants received two intramuscular gluteal injections of 800 mg of CAB 400 mg/mL approximately 12 weeks apart.
Part 2: Cohort 5 (C5) CAB200ACTIVE_COMPARATORFollowing receipt of oral CAB 30 in the OLI phase, participants received two intramuscular gluteal injections of 400 mg of CAB 200 mg/mL approximately 12 weeks apart. The dose was matched to the volume of CAB 400 mg/mL administered earlier in the same cohort.
Subjects receiving CABEXPERIMENTALEligible subjects will receive oral doses of CAB 30 milligrams (mg) tablets once daily for 4 weeks followed by IM injectable suspension of CAB LA 600 mg at Week 5, Week 9, Week 17, Week 25 and Week 33. There will be an approximately 1-week washout period between the last oral dose and the first injection of CAB at Week 5.
Treatment AEXPERIMENTALParticipants will be administered a single oral dose of CAB 30 mg after an overnight fast of at least 6 hours for 14 days in Period 1. Dosing of study medication on non-PK days may be with or without food.
Treatment BEXPERIMENTALParticipants will be administered a single dose of RBT 300 mg and a single dose of CAB 30 mg after an overnight fast of at least 6 hours once daily for 14 days in Period 2. Dosing of study medication on non-PK days may be with or without food.
Cabotegravir 30 mg: Sequence AB (fasted followed by fed)EXPERIMENTALThere will be two administration periods with 14 days of wash out. In Period 1, eligible subjects will receive a single tablet of cabotegravir 30 mg,(micronized 500 mg core weight) orally under fasted condition with at least 10 hours of prior fast. In Period 2, eligible subjects will receive single tablet of cabotegravir 30 mg, micronized 500 mg core weight orally following a high fat meal. Blood samples will be withdrawn from subjects prior to dosing and upto 8 days after the last dose of cabotegravir.
Cabotegravir 30 mg: Sequence BA (fed followed by fasted)EXPERIMENTALThere will be two administration periods with 14 days of wash out. In Period 1, eligible subjects will receive single tablet of cabotegravir 30 mg, micronized 500 mg core weight orally following a high fat meal. In Period 2, eligible subjects will receive a single tablet of cabotegravir 30 mg, micronized 500 mg core weight orally under fasted condition with at least 10 hours of prior fast. Blood samples will be withdrawn from subjects prior to dosing and upto 8 days after the last dose of cabotegravir.
Treatment A(CAB 30mg)+B (RIF 600mg)+C (CAB 30mg and RIF 600mg)EXPERIMENTALSubjects will receive a single dose of CAB 30 mg on day 1. Subjects will then receive RIF 600 mg once daily on days 8-28 with co-administration of a single dose of CAB 30 mg on day 21.
Part AEXPERIMENTALSubjects will receive reference cabotegravir 30 mg current formulation (Treatment A), Cabotegravir 30 mg micronized new formulation 500 M (Treatment B) and Cabotegravir 30 mg unmicronized new formulation 500 U (Treatment C) in one of six sequences ABC, ACB, BCA, BAC, CAB, CBA in three treatment periods under fasting condition
Part BEXPERIMENTALSubjects will receive reference Cabotegravir 30 mg current formulation (Treatment A), Cabotegravir 30 mg micronized new formulation 650 M (Treatment D) and Cabotegravir 30 mg unmicronized new formulation 650 U (Treatment E) in one of six sequences ADE, AED, DAE, DEA, EAD, EDA in three treatment periods under fasting condition

Interventions

NameTypeDescription
CAB ULADRUGCAB ULA will be administered.
RPV ULADRUGRPV ULA will be administered.
CAB LADRUGCAB LA will be administered.
RPV LADRUGRPV LA will be administered.
CAB LA + RPV LADRUGIntramuscular injection administered monthly for first 2 initiation doses then every 2 months.
Oral ARTDRUGOral medication provided to participants by the site/their regular healthcare professional (HCP) as part of their standard of care (SOC) treatment.
Cabotegravir - Injectable Suspension (CAB LA)DRUGIt is a sterile white to slightly pink suspension containing 200 mg/mL of CAB as free acid for administration by intramuscular (IM) injection. Each vial is for single-dose use containing a withdrawable volume of 2.0 mL, and does not require dilution prior to administration. CAB LA is composed of cabotegravir free acid, polysorbate 20, polyethylene glycol 3350, mannitol, and water for injection.
Rilpivirine - Injectable Suspension (RPV LA)DRUGIt is a sterile white suspension containing 300 mg/mL of RPV as the free base. The route of administration is by intramuscular (IM) injection. Each vial contains a nominal fill of 2.0 mL, and does not require dilution prior to administration. RPV LA requires refrigeration and must be protected from light. RPV LA is composed of RPV free base, poloxamer 338, sodium dihydrogen phosphate monohydrate, citric acid monohydrate, glucose monohydrate, sodium hydroxide, water for injection.
Cabotegravir Injectable SuspensionDRUGCAB LA injectable suspension is a sterile white to slightly pink suspension containing 200 milligrams per milliliter (mg/mL) of GSK1265744 as free acid for administration by IM injection. CAB LA injectable suspension is to be stored at up to 30 degree Celsius and should not be frozen.
Rilpivirine Injectable SuspensionDRUGRPV LA injectable suspension is a sterile white suspension containing 300 mg/mL of RPV as the free base for administration by IM injection. RPV LA injectable suspension should be kept in the outer package and stored at 2-8 degree Celsius and should not be frozen. RPV LA should also be protected from light.
Cabotegravir TabletsDRUGCAB tablets were available as film coated tablets for oral administration.
Cabotegravir Injectable Suspension (CAB LA)DRUGCAB LA was available as sterile suspension for injection in GSK1265744 for administration as IM injection.
Rilpivirine TabletsDRUGRPV was administered as tablets for oral administration.
Rilpivirine Injectable Suspension (RPV LA)DRUGRPV LA was available as a sterile suspension of RPV to be administered as an IM injection.
BIKTARVY Tablets (BIK)DRUGBIK was a three-drug fixed dose combination product BIC, FTC, and TAF for oral administration.
CAB LA+RPV LADRUGSubjects will receive one tablet of CAB 30 milligram(mg) + RPV 25 mg once daily from Day 1 for 1 month. During month 1, subjects will receive 600 mg of CAB LA injection+ 900 mg of RPV LA injection. Following Month 1, subjects will receive 400mg of CAB LA + 600mg of RPV LA at each subsequent injection.
Cabotegravir (CAB) tabletDRUGIt is a white oval shaped film coated 30 mg tablets for oral administration. CAB Tablet is composed of cabotegravir sodium, lactose monohydrate, microcrystalline cellulose, hypromellose, sodium starch glycolate, magnesium stearate, and white film-coat
Rilpivirine (RPV) tabletDRUGIt is a 25 mg tablet with off-white, round, biconvex, film-coated and debossed on one side with "TMC" and the other side with "25". Each tablet contains RPV hydrochloride, and the inactive ingredients croscarmellose sodium, lactose monohydrate, magnesium stearate, polysorbate 20, povidone K30 and silicified microcrystalline cellulose
2 NRTIs plus an INI, NNRTI, or PIDRUGAcceptable stable (initial or second) ARV regimens include 2 NRTIs plus: * INI with the exception of ABC/DTG/3TC (either the initial or second cART regimen) * NNRTI (either the initial or second cART regimen) * Boosted PI (or atazanavir \[ATV\] unboosted) (either the initial or second PI-based cART regimen)
ABC/DTG/3TC STR - TabletDRUGIt is a purple, biconvex, oval, tablet debossed with "572 Tri" on one side, film-coated tablet contains abacavir sulphate equivalent to 600 mg of abacavir, dolutegravir sodium equivalent to 50 mg dolutegravir, and 300 mg of lamivudine. The inactive ABC/DTG/3TC tablet ingredients include D-mannitol, magnesium stearate, microcrystalline cellulose, povidone, and sodium starch glycolate.
DTG TabletDRUGIt is a yellow, round, biconvex, 50 mg film-coated tablet debossed with "SV 572" on one side and "50" on the other side. Each tablet of DTG also contains the following inactive ingredients: D-mannitol, microcrystalline cellulose, povidone K29/32, sodium starch glycolate, and sodium stearyl fumarate.
New formulation of CAB LADRUGInjections administered IM gluteal.
Collaborative drug therapy management modelBEHAVIORALCDTM+ is an interdisciplinary approach to patient care in which clinicians collaborate with pharmacists to provide and manage patient drug therapy.
Cabotegravir/RilpivirineDRUGLong-acting injectable treatment prescribed to treat HIV-1 infection in people 12 years and older and who weigh at least 77 lbs (35kg), to replace their current HIV-1 medicines when their healthcare provider determines they meet certain requirements.
RPVDRUGOral dose of RPV 25 mg, administered once daily from Day 1 up to Month 12
DTGDRUGOral dose of DTG 50 mg administered once daily from Day 1 up to Month 12.
CAB Oral TabletsDRUGWhite to almost white oval shaped film coated 30 mg tablets for oral administration.
ABC/3TC Oral tabletsDRUGABC/3TC fixed dose combination (FDC) oral tablet, containing 600 mg of ABC (as abacavir sulfate) and 300 mg of 3TC
RPV Oral TabletsDRUGOff-white, round, biconvex, film-coated 25 mg Rilpivirine (RPV) tablets for oral administration. Eligible subjects switching from the oral regimen to the IM regimen in the Extension Period will receive 2 weeks of RPV 25 mg once daily, from Week 102 through Week 104
HAARTOTHERHigly-active antiretroviral therapy chosen by participant based on investigator recommendations and based on availability.
Oral CABDRUGCAB administered once orally on study Day 1 to the Stage 1: Single Oral Dose CAB (Cohort 1) and multiple times to the Stage 1: Multiple Oral Dose CAB (Cohort 2) group. Dose and dosing frequency for Cohort 2 to be determined based on emerging data from Cohort 1.
IM CAB LADRUGCAB LA administered once intramuscularly on study Day 1 to the Stage 2: Single IM Dose CAB LA (Cohort 3) group and multiple times to the Stage 2: Multiple IM Dose CAB LA (Cohort 4) group, into the in the anterolateral thigh muscle of participants. Dose for Cohort 3 to be determined based on emerging data from Cohort 2. Dose and dosing frequency for Cohort 4 to be determined based on emerging data from Cohort 3.
Cabotegravir long-actingDRUGA single CAB LA injection administered intramuscularly.
Lenacapavir long-actingDRUGTwo LEN LA injections administered subcutaneously.
Cabotegravir 200 mg/mLDRUGCAB 200 mg/mL will be administered.
Cabotegravir >=400 mg/mLDRUGCAB \>=400 mg/mL will be administered by IM or SC injection.
Cabotegravir Formulation IDRUGCAB Formulation I will be administered by IM injection.
CAB Formulation JDRUGCAB Formulation J will be administered by IM injection.
rHuPH20DRUGrHuPH20 will be administered.
Cabotegravir extended release suspension for injection (long-acting)DRUGCabotegravir long-acting will be a sterile white to slightly pink suspension containing 200 mg per mL of GSK1265744 as free acid for administration by intramuscular injection.
Rilpivirine extended release suspension for injection (long-acting)DRUGRilpivirine long-acting will be a sterile white suspension containing 300 mg per mL of rilpivirine as the free base for administration by intramuscular injection.
Cabotegravir sodium (Oral Lead In)DRUGCAB 30 mg tablets administered orally.
Cabotegravir 400 mg/mLDRUGCAB 400 mg/mL administered intramascularly or subcutaneously.
Topical Non-steroidal anti-inflammatory drug (NSAID)DRUGNSAID applied topically.
Topical steroidDRUGSteroid medication applied topically.
Topical NSAID placeboDRUGPlacebo for NSAID applied topically.
Recombinant human hyaluronidase PH20 (rHuPH20)DRUGrHuPH20 administered subcutaneously.
Topical steroid placeboDRUGPlacebo for steroid applied topically.
CabotegravirDRUGIt will be available as a white aquarius film coated tablet for oral administration. CAB Tablet is composed of GSK1265744B (micronized) lactose monohydrate, microcrystalline cellulose, hypromellose, sodium starch glycolate, magnesium stearate
RifabutinDRUGIt will be available as an opaque red-brown hard gelatin capsules containing 150 mg of rifabutin for oral administration. These capsules are composed of rifabutin, microcrystalline cellulose, sodium lauryl sulphate, magnesium stearate, and silica gel
Cabotegravir 30 mgDRUGCabotegravir (GSK1265744B ) is available as white to almost white, oval shaped, film coated tablet, of weight 515 mg. The tablet contains micronized cabotegravir, lactose monohydrate, microcrystalline cellulose, hypromellose, sodium starch glycolate, and magnesium stearate. Each tablet is equivalent to 30 mg cabotegravir and needs to be taken orally with 240 mL of water. Cabotegravir tablet will be administered to subjects either in fasting condition or following a high fat meal.
CABDRUGCAB 30 mg as 1 tablet will be administered orally with 240 mL of water in the fasted state.
RIFDRUGRIF 600 mg as 2 capsules of 300 mg will be administered orally with 240 mL of water in the fasted state.
Cabotegravir 30 mg current formulationDRUGCabotegravir 30 mg current formulation (Treatment A) is a film coated tablet with a weight of 824 mg
Cabotegravir 30 mg micronized new formulation 500 MDRUGCabotegravir 30 mg micronized new formulation 500 M (Treatment B) is a film coated tablet with a weight of 515 mg
Cabotegravir 30 mg unmicronized new formulation 500 UDRUGCabotegravir 30 mg unmicronized new formulation 500 U (Treatment C) is a film coated tablet with a weight of 515 mg
Cabotegravir 30 mg micronized new formulation 650 MDRUGCabotegravir 30 mg micronized new formulation 650 M (Treatment D) is a film coated tablet with a weight of 670 mg
Cabotegravir 30 mg unmicronized new formulation 650 UDRUGCabotegravir 30 mg unmicronized new formulation 650 U (Treatment E) is a film coated tablet with a weight of 670 mg
Unlock Study Design Details

Eligibility Criteria

Age Range12 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites108

Inclusion criteria: Patient Study Participant (PSP) Inclusion criteria: * Adults and adolescents with HIV-1 infection aged 12 years or older with a weight \>35 kg. * Documented HIV-1 RNA measurements \<50 copies/mL in the 12 months prior to Screening. * HIV-1 RNA \<50 copies/mL at screening assess...

Countries:United StatesArgentinaAustraliaBrazilCanadaJapanMexicoPuerto RicoSpainUnited KingdomBelgiumGermanyItalyPortugalBotswanaEswatiniKenyaMalawiPeruSouth AfricaThailandUgandaVietnamZimbabweSwedenAustriaFranceIrelandNetherlandsSwitzerlandRussiaSouth KoreaNew ZealandChina
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

MEDIUMOct 5, 2026NCT06741397Completion: 2029-01-10 → 2029-08-30
MEDIUMOct 5, 2026NCT06741397Completion: 2029-01-10 → 2029-08-30
LOWOct 1, 2026NCT06694805Completion: 2028-06-08 → 2028-06-09
LOWOct 1, 2026NCT06694805Completion: 2028-06-08 → 2028-06-09
LOWSep 28, 2026NCT07650916lastUpdatePostDate: changed
LOWSep 28, 2026NCT07650916lastUpdatePostDate: changed
LOWAug 14, 2026NCT07650916lastUpdatePostDate: changed
LOWAug 14, 2026NCT07650916lastUpdatePostDate: changed
LOWAug 3, 2026NCT07650916Status: NOT_YET_RECRUITING → RECRUITING
LOWAug 3, 2026NCT07650916Status: NOT_YET_RECRUITING → RECRUITING
MEDIUMJul 30, 2026NCT06134362Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWJul 30, 2026NCT02938520lastUpdatePostDate: changed
MEDIUMJul 30, 2026NCT06134362Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWJul 30, 2026NCT02938520lastUpdatePostDate: changed
LOWJul 29, 2026NCT06694805Completion: 2028-08-28 → 2028-06-08
LOWJul 29, 2026NCT06694805Completion: 2028-08-28 → 2028-06-08
MEDIUMJul 22, 2026NCT06694805Status: RECRUITING → ACTIVE_NOT_RECRUITING

Frequently asked questions about Cabotegravir

What is cabotegravir?

Cabotegravir is an investigational small molecule developed by GSK plc for the treatment and prevention of HIV infections, including HIV-1. It is studied in oral tablet and long-acting injectable suspension formulations, and is also being evaluated in combination with rilpivirine long-acting (RPV LA).

What is cabotegravir used for in HIV?

Cabotegravir is being developed for HIV infections, including human immunodeficiency virus type 1 (HIV-1). Clinical trials are evaluating it in adults and adolescents who are virologically suppressed, in neonates exposed to HIV-1, and in healthy adults without HIV for tolerability and acceptability.

Who makes cabotegravir?

Cabotegravir is developed by GSK plc, which trades under the ticker GSK. GSK is the sponsor of the clinical trials evaluating cabotegravir in HIV infections.

What phase is cabotegravir in?

Cabotegravir is in Phase 3 clinical development. It is investigational and has not been approved by the FDA for any indication. The Phase 3 program includes a recruiting trial of cabotegravir ultra long-acting plus rilpivirine ultra long-acting in virologically suppressed adults and adolescents with HIV.

What clinical trials is cabotegravir in?

Cabotegravir is being studied in 16 clinical trials, with 10 active and 6 completed, enrolling 7,287 participants overall. Active trials include NCT07650916 (Phase 3, cabotegravir ultra long-acting plus rilpivirine ultra long-acting), NCT07275606 (Phase 1, neonates exposed to HIV-1), NCT06970223 (Phase 1, tolerability with lenacapavir), and NCT06786520 (Phase 1, switch from cabotegravir long-acting to ultra long-acting).

Is cabotegravir the same as CAB LA or CAB ULA?

Yes, cabotegravir is known by several alternative names including CAB LA (cabotegravir long-acting), CAB ULA (cabotegravir ultra long-acting), oral CAB, and cabotegravir injectable suspension. CAB LA + RPV LA refers to the combination of cabotegravir long-acting with rilpivirine long-acting. These names refer to the same drug in different formulations or combinations.