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GSK3810109A

Phase 2

HIV Infections | Monoclonal antibody | Infectious Disease |GSK plc|Last Updated: Oct 15, 2024

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedCONTROLLEDBiomarker
Total Trials1
Total Enrollment62
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04871113A Study to Evaluate the Antiviral Effect, Safety and Tolerability of GSK3810109A in Viremic Human Immunodeficiency Virus (HIV)-1 Infected AdultsPHASE2 COMPLETED 62Jun 22, 2021Sep 21, 2023Oct 15, 202424 United States, Argentina +4
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Study Endpoints
Primary Endpoints
Maximum Decline From Baseline in Plasma Human Immunodeficiency Virus-1 (HIV-1) Ribonucleic Acid (RNA) Levels - Monotherapy Phase
Baseline (Day 1) and up to Day 84 or end of Monotherapy Phase

Plasma samples were collected for quantitative analysis of plasma HIV-1 RNA. Maximum decline from baseline in plasma HIV-1 RNA were measured in participants. Baseline was defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits. End of Monotherapy Phase is defined as the timepoint when a participant had reached the monotherapy endpoint criteria or a maximum of 84 days follow-up, whichever occurred first.

Number of Participants With Adverse Events (AEs) - Monotherapy Phase
Up to Day 84 or end of Monotherapy Phase

An adverse event (AE) is defined as 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. End of Monotherapy Phase is defined as the timepoint when a participant had reached the monotherapy endpoint criteria or a maximum of 84 days follow-up, whichever occurred first.

Number of Participants With Worst-case Maximum Grade 2-4 Increase in Post-baseline Values of Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST) Compared to the Baseline Values - Monotherapy Phase
Baseline (Day 1) and up to Day 84 or end of Monotherapy Phase

Blood samples were collected for the analysis of ALT and AST parameters. The parameters ALT and AST were graded using the Division of Acquired Immunodeficiency Syndrome (DAIDS) criteria Version 2.1 where grades were defined based on numeric criteria as follows Grade 0: participants with missing baseline values; Grade 1: Mild; Grade 2: moderate; Grade 3: severe or medically significant; Grade 4: life-threatening consequences. Higher grade indicates greater severity. Baseline was defined as the latest pre-dose assessment with a non-missing value, including those from unscheduled visits. Data of number of participants with 2-4 grade increase at worst-case post-baseline (maximum grade increase post-baseline) is presented. End of Monotherapy Phase is defined as the timepoint when a participant had reached the monotherapy endpoint criteria or a maximum of 84 days follow-up, whichever occurred first.

Number of Participants With Treatment-emergent Abnormal Electrocardiogram (ECG) Findings - Monotherapy Phase
Up to Day 84 or end of Monotherapy Phase

A 12-lead ECG were obtained using an ECG machine that automatically calculated the heart rate and measured PR, QRS, QT, and QT interval corrected using Fridericia's formula (QTcF) intervals. ECG findings were categorized as normal, abnormal clinically significant (CS) and abnormal not clinically significant (NCS). Clinically significant abnormal findings are those which are not associated with the underlying disease, unless judged by the investigator to be more severe than expected for the participant's condition. Number of participants with abnormal (CS and NCS) ECG findings are presented. End of Monotherapy Phase is defined as the timepoint when a participant had reached the monotherapy endpoint criteria or a maximum of 84 days follow-up, whichever occurred first.

Number of Participants With Grade 2-4 Injection Site Reactions (ISR) - Monotherapy Phase
Up to Day 84 or end of Monotherapy Phase

Number of participants with grade 2-4 injection site reactions are presented. The ISR were graded using the Division of Acquired immunodeficiency syndrome (DAIDS) criteria Version 2.1 where grades were defined based on numeric criteria as follows Grade 2: moderate; Grade 3: severe or medically significant; Grade 4: life-threatening consequences. Higher grade indicates more severe condition. End of Monotherapy Phase is defined as the timepoint when a participant had reached the monotherapy endpoint criteria or a maximum of 84 days follow-up, whichever occurred first.

Secondary Endpoints
Area Under the Plasma Concentration-time Curve From Time Zero to the Day 14 (AUC [0-14]) of GSK3810109A - Monotherapy Phase
Pre-dose (Day 1), 3 and 24 hours post-dose on day 1, days 3, 6, 9, 11, and 14
Maximum Observed Plasma Concentration (Cmax) of GSK3810109A - Monotherapy Phase
Pre-dose (Day 1), 3 and 24 hours post-dose on day 1, days 3, 6, 9, 11, and 14
Time to Reach Maximum Observed Plasma Concentration (Tmax) of GSK3810109A - Monotherapy Phase
Pre-dose (Day 1), 3 and 24 hours post-dose on day 1, days 3, 6, 9, 11, and 14
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Part 1:GSK3810109A 40milligram(mg)/kilogram intravenously (IV)EXPERIMENTALParticipants with human immunodeficiency viruses-1 (HIV-1) received GSK3810109A as a single intravenous (IV) infusion of 40 milligrams per kilogram (mg/kg) dose based on individual bodyweight on Day 1 in part 1.
Part 1: GSK3810109A 280 mg IVEXPERIMENTALParticipants with HIV-1 received GSK3810109A as a single IV infusion of 280 mg dose on Day 1 in part 1.
Part 2: GSK3810109A 700 mg IVEXPERIMENTALParticipants with HIV-1 received GSK3810109A as a single IV infusion of 700 mg dose on Day 1 in part 2. This included dose level determined based on the data of part 1.
Part 2: GSK3810109A 70 mg IVEXPERIMENTALParticipants with HIV-1 received GSK3810109A as a single IV infusion of 70 mg dose on Day 1 in part 2. This included dose level determined based on the data of part 1.
Part 2: GSK3810109A 700 mg subcutaneously (SC)EXPERIMENTALParticipants with HIV-1 received GSK3810109A as a subcutaneous (SC) injection of total 700 mg dose administered as three equally divided SC injections of 2.33 mL each (approximately 7 mL) in quick succession at same time on Day 1 in part 2. This included dose level determined based on the data of part 1.
Standard of care (SOC) - GSK3810109A 40mg/kg IVEXPERIMENTALParticipants who completed the monotherapy phase of treatment of GSK3810109A 40mg/kg IV entered SOC phase to receive dolutegravir + lamivudine regimen as a SOC treatment on SOC Day 1 if deemed appropriate by the investigator and consistent with local guidelines.
SOC - GSK3810109A 280 mg IVEXPERIMENTALParticipants who completed the monotherapy phase of treatment of GSK3810109A 280 mg IV entered SOC phase to receive dolutegravir + lamivudine regimen as a SOC treatment on SOC Day 1 if deemed appropriate by the investigator and consistent with local guidelines.
SOC - GSK3810109A 700 mg IVEXPERIMENTALParticipants who completed the monotherapy phase of treatment of GSK3810109A 700 mg IV entered SOC phase to receive dolutegravir + lamivudine regimen as a SOC treatment on SOC Day 1 if deemed appropriate by the investigator and consistent with local guidelines.
SOC - GSK3810109A 70 mg IVEXPERIMENTALParticipants who completed the monotherapy phase of treatment of GSK3810109A 70 mg IV entered SOC phase to receive dolutegravir + lamivudine regimen as a SOC treatment on SOC Day 1 if deemed appropriate by the investigator and consistent with local guidelines.
SOC - GSK3810109A 700 mg SCEXPERIMENTALParticipants who completed the monotherapy phase of treatment of GSK3810109A 700 mg SC entered SOC phase to receive dolutegravir + lamivudine regimen as a SOC treatment on SOC Day 1 if deemed appropriate by the investigator and consistent with local guidelines.
Interventions
NameTypeDescription
GSK3810109ABIOLOGICALGSK3810109A available as sterile aqueous solution.
Dolutegravir+lamivudine SOC regimenBIOLOGICALDolutegravir+lamivudine regimen administered in consistence with investigator input and local guidelines
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Eligibility Criteria
Age Range18 Years — 65 Years
SexALL
Healthy VolunteersNo
Study Sites24

Inclusion Criteria: * Participant must be 18 to 65 years of age inclusive, at the time of signing the informed consent. * Participants must have HIV-1 infection within 45 days of the Screening Visit: Plasma HIV-1 RNA greater than or equal to (\>=) 5000 copies/mL (c/mL). * Confirmed screening CD4+ T...

Countries:United StatesArgentinaBrazilCanadaMexicoPeru
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