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Dolutegravir

Phase 3

HIV | Small molecule | Infectious Disease |GSK plc|Last Updated: Jul 2, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLED
Total Trials1
Total Enrollment307

FDA Designations

No designations recorded

Clinical trial landscape

Dolutegravir · 16 trials · 6 indications

Phase 3 7Phase 1 9
NCT05979311A Study to Evaluate the Efficacy, Safety, and Tolerability of Using an Oral Once-daily 2 Drug Regimen Compared to an Oral Once-daily 3 Drug Regimen for the Treatment of Human Immunodeficiency Virus (HIV)-1 in Adults Who Have Not Previously Taken Antiretroviral TherapyHIV
ACTIVE NOT_RECRUITING307 Analytics
NCT02831673An Efficacy, Safety, and Tolerability Study Comparing Dolutegravir Plus Lamivudine With Dolutegravir Plus Tenofovir/Emtricitabine in Treatment naïve HIV Infected Subjects (Gemini 1)Infection, Human Immunodeficiency Virus
COMPLETED719 Analytics
NCT02831764An Efficacy, Safety, and Tolerability Study Comparing Dolutegravir (DTG) Plus Lamivudine (3TC) With Dolutegravir Plus Tenofovir/Emtricitabine in Treatment naïve HIV Infected Participants (Gemini 2)Infection, Human Immunodeficiency Virus
COMPLETED722 Analytics
NCT01910402A Study to Determine Safety and Efficacy of Dolutegravir/Abacavir/Lamivudine (DTG/ABC/3TC) in Human Immunodeficiency Virus (HIV)-1 Infected Antiretroviral Therapy (ART) Naïve Women (ARIA)Infection, Human Immunodeficiency Virus
COMPLETED499 Analytics
NCT01499199A Study of the Pharmacokinetics and Antiviral Activity of Dolutegravir in the Central Nervous System in HIV-1 Infected ART-naive SubjectsInfection, Human Immunodeficiency Virus
COMPLETED13 Analytics
NCT01328041A Study to Assess Dolutegravir in HIV-infected Subjects With Treatment Failure on an Integrase Inhibitor Containing Regimen.Infection, Human Immunodeficiency Virus
COMPLETED183 Analytics
NCT01263015A Trial Comparing GSK1349572 50mg Plus Abacavir/Lamivudine Once Daily to Atripla (Also Called The SINGLE Trial)Infection, Human Immunodeficiency Virus I
COMPLETED844 Analytics
PHASE3ACTIVE NOT_RECRUITING
A Study to Evaluate the Efficacy, Safety, and Tolerability of Using an Oral Once-daily 2 Drug Regimen Compared to an Oral Once-daily 3 Drug Regimen for the Treatment of Human Immunodeficiency Virus (HIV)-1 in Adults Who Have Not Previously Taken Antiretroviral Therapy
HIVUnlock trial analytics
PHASE3COMPLETED
An Efficacy, Safety, and Tolerability Study Comparing Dolutegravir Plus Lamivudine With Dolutegravir Plus Tenofovir/Emtricitabine in Treatment naïve HIV Infected Subjects (Gemini 1)
Infection, Human Immunodeficiency VirusUnlock trial analytics
PHASE3COMPLETED
An Efficacy, Safety, and Tolerability Study Comparing Dolutegravir (DTG) Plus Lamivudine (3TC) With Dolutegravir Plus Tenofovir/Emtricitabine in Treatment naïve HIV Infected Participants (Gemini 2)
Infection, Human Immunodeficiency VirusUnlock trial analytics
PHASE3COMPLETED
A Study to Determine Safety and Efficacy of Dolutegravir/Abacavir/Lamivudine (DTG/ABC/3TC) in Human Immunodeficiency Virus (HIV)-1 Infected Antiretroviral Therapy (ART) Naïve Women (ARIA)
Infection, Human Immunodeficiency VirusUnlock trial analytics
PHASE3COMPLETED
A Study of the Pharmacokinetics and Antiviral Activity of Dolutegravir in the Central Nervous System in HIV-1 Infected ART-naive Subjects
Infection, Human Immunodeficiency VirusUnlock trial analytics
PHASE3COMPLETED
A Study to Assess Dolutegravir in HIV-infected Subjects With Treatment Failure on an Integrase Inhibitor Containing Regimen.
Infection, Human Immunodeficiency VirusUnlock trial analytics
PHASE3COMPLETED
A Trial Comparing GSK1349572 50mg Plus Abacavir/Lamivudine Once Daily to Atripla (Also Called The SINGLE Trial)
Infection, Human Immunodeficiency Virus IUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of participants with plasma HIV- Ribonucleic acid (RNA) less than (<)50 copies per milliliter (c/mL) as per snapshot algorithm at Week 48
Week 48
Percentage of Participants With Plasma Human Immunodeficiency Virus Type 1 (HIV-1) Ribonucleic Acid (RNA) <50 Copies/mL (c/mL) at Week 48
Week 48

Percentage of participants with HIV-1 RNA\<50 c/mL was obtained using Food and Drug Administration (FDA) Snapshot algorithm. The Snapshot 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 non-responders, as well as participants who switch their concomitant antiretroviral therapy (ART) prior to the visit of interest. This endpoint was analyzed using a stratified analysis with Cochran-Mantel-Haenszel (CMH) weights. Intent-To-Treat Exposed (ITT-E) Population was used which comprised of all randomized participants who received at least one dose of study treatment. Percentage values are rounded to the nearest whole digit.

Percentage of Participants With Plasma HIV-1 RNA <50 Copies/mL at Week 48
Week 48

Percentage of participants with plasma human immunodeficiency virus type 1(HIV-1) ribonucleic acid (RNA) \<50 copies per milliliter (c/mL) were assessed at Week 48 using the Snapshot algorithm. Analysis was performed using a stratified analysis with Cochran-Mantel-Haenszel (CMH) weights, adjusting for Baseline plasma HIV-1 RNA ( =\<vs. \>100,000 c/mL) and CD4+ cell count (=\<350 cells per millimeter cube (cells/mm\^3) or \>350 cells/mm\^3). Intent-to-Treat Exposed (ITT-E) Population comprised of all randomized participants who received at least one dose of study medication. Percentage values are rounded off.

The Ratio of Total and Unbound DTG Concentrations Between Cerebrospinal Fluid (CSF) and Plasma at Week 2 and Week 16
Week 2 and Week 16

Cerebrospinal fluid (CSF) is a clear, colorless bodily fluid produced in the choroid plexus of the brain. The CFS samples were collected at the Week 2 and Week 16 visits, within 1 hour of plasma pharmacokinetic (PK) sampling. The ratio (presented as a percentage) of CSF DTG concentration over paired plasma total DTG concentration (RCSF\_plasma) was calculated at the Week 2 and Week 16 visits.

Total DTG Plasma Concentrations at Week 2 and Week 16
Week 2 and Week 16

Total plasma DTG concentrations were calculated at the Week 2 and Week 16 visits.

Unbound DTG Plasma Concentrations at Week 2 and Week 16
Week 2 and Week 16

Unbound (free, not bound to cellular proteins) plasma DTG concentrations were calculated at the Week 2 and Week 16 visits.

Plasma DTG Unbound Fraction at Week 2 and Week 16
Week 2 and Week 16

The unbound fraction of DTG in plasma (presented as a percentage of unbound \[i.e., free DTG not bound to cellular proteins\] DTG plasma concentration over paired plasma total DTG concentration) was calculated at the Week 2 and Week 16 visits.

DTG Concentrations in CSF at Weeks 2 and Week 16
Week 2 and Week 16

CSF is a clear, colorless bodily fluid produced in the choroid plexus of the brain. The CFS samples were collected at the Week 2 and Week 16 visits, within 1 hour of plasma PK sampling. DTG concentration in CSF were calculated at the Week 2 and Week 16 visits.

Mean Change From Baseline in Plasma HIV-1 RNA at Day 8
Baseline and Day 8

Mean change from Baseline in Plasma Human Immunodeficiency Virus-1 (HIV-1) Ribonucleic Acid (RNA) at Day 8 was calculated as the Day 8 value minus the Baseline value. The last observation was carried forward if a participant had missed the Day 8 visit. The Baseline observation was carried forward if a participant had discontinued the treatment before Day 8. Blood samples for assessment of HIV-1 RNA levels were collected at Baseline and Day 8.

Number of Participants With HIV-1 RNA Less Than 50 Copies/mL at Week 24
Week 24

The number of participants who had viral load \<50 copies/mL at Week 24 based on the Food and Drug Administration's Snapshot algorithm was assessed. This algorithm treats all participants without HIV-1 RNA data at the visit of interest (VOI \[due to missing data/discontinuation of investigational product prior to the visit window\]) as nonresponders, as well as participants who switched their concomitant antiretroviral (ART) prior to the VOI as follows: background ART substitutions not permitted per protocol; background ART substitutions permitted per protocol, however the decision to switch was not documented as being before or at the first on-treatment visit after switching to optimized background regimen (i.e., Week 4) where HIV-1 RNA was assessed. Otherwise, virologic success/failure was to be determined by the last available HIV-1 RNA assessment while the participant was on treatment within the VOI analysis window.

Number of Participants With HIV-1 RNA Less Than 50 Copies/mL at Week 48
Week 48

The number of participants who had viral load \<50 copies/mL at Week 48 based on the Food and Drug Administration's Snapshot algorithm was assessed. This algorithm treats all participants without HIV-1 RNA data at the visit of interest (VOI \[due to missing data/discontinuation of investigational product prior to the visit window\]) as nonresponders, as well as participants who switched their concomitant antiretroviral (ART) prior to the VOI as follows: background ART substitutions not permitted per protocol; background ART substitutions permitted per protocol, however the decision to switch was not documented as being before or at the first on-treatment visit after switching to optimized background regimen (i.e., Week 4) where HIV-1 RNA was assessed. Otherwise, virologic success/failure was to be determined by the last available HIV-1 RNA assessment while the participant was on treatment within the VOI analysis window.

Number of Participants With Any Adverse Event (AE) or Any Serious Adverse Event (SAE)
From the day of the first dose of study drug until end of treatment visit for each participant, up to Week 180 (median of 758 days)

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. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a medicinal product. An 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, is a congenital anomaly/birth defect, or is an event of possible drug-induced liver injury.

Number of Participants With Adverse Events of the Indicated Severity, Per the Division of Acquired Immune Deficiency Syndrome (DAIDS) Grading Scale
From the day of the first dose of study drug until end of treatment visit for each participant, up to Week 180 (median of 758 days)

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. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a medicinal product. An 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, is a congenital anomaly/birth defect, or is an event of possible drug-induced liver injury. AE/SAE severity was graded according to the DAIDS grading scale. The DAIDS displays events as Grades 1-4 based on this general guideline: Grade (G) 1, mild; G2, moderate; G3, severe; G4, potentially life threatening.

Number of Participants With the Maximum Post-Baseline-emergent Clinical Chemistry Toxicities of the Indicated Grade
From the day of the first dose of study drug until end of treatment visit for each participant, up to Week 180 (median of 758 days)

The severity of clinical chemistry toxicities was graded according to the DAIDS toxicity scale. The DAIDS displays events as Grades 1-5 based on this general guideline: Grade (G) 1, mild; G2, moderate; G3, severe; G4, life threatening; G5, death related to toxicity.

Number of Participants With the Maximum Post-Baseline-emergent Hematology Toxicities of the Indicated Grade
From the day of the first dose of study drug until end of treatment visit for each participant, up to Week 180 (median of 758 days)

The severity of hematology toxicities was graded according to the DAIDS. The DAIDS displays events as Grades 1-5 based on this general guideline: Grade (G) 1, mild; G2, moderate; G3, severe; G4, life threatening; G5, death related to toxicity.

Proportion of Subjects Responding Based on Plasma HIV-1 RNA <50 c/mL at Week 48
Week 48

The percentage of participants with plasma HIV-1 RNA \<50 c/mL at Week 48 was assessed. Plasma samples were collected for the quantitative assessment of HIV-1 RNA based on the Missing, Switch, or Discontinuation equals Failure (MSDF) algorithm,as codified by the Food and Drug Administration's Snapshot algorithm. This algorithm treats all participants without HIV-1 RNA data at the visit of interest (due to missing data or discontinuation of investigationl product prior to the visit window) as non-responders, as well as participants who switched their concomitant antiretroviral therapy (ART) in certain scenarios. Since changes in ART were not permitted in this protocol, all such participants who changed ART were to be considered non-responders. Otherwise, virologic success or failure was to be determined by the last available HIV-1 RNA assessment while the participant was on treatment within the visit of interest window.

Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity [AUC (0-Inf)] of Plasma DTG and 3TC in the Fasted State: Part 1
Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12, 16, 24, 48 and 72 hours post-dose

Blood samples were collected at indicated time points to study the pharmacokinetic (PK) profile of DTG and 3TC when administered as FDC tablet compared to co-administration of separate tablet formulations of DTG and 3TC in fasted state. The 4-hour post-dose sample was drawn prior to the participant's first post-dose meal. At each time point, 2 mL of blood was collected. PK parameters of monolayer FDC tablet formulation of DTG and 3TC was evaluated under fasted condition in Periods 1 and 2 of Part 1.

AUC (0-Inf) of Plasma DTG and 3TC in the Fasted State: Part 2
Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12, 16, 24, 48 and 72 hours post-dose

Blood samples were collected at given time points to study the PK profile of DTG and 3TC when administered as FDC tablet compared to co-administration of separate tablet formulations of DTG and 3TC in fasted state. The 4-hour post-dose sample was drawn prior to the participant's first post-dose meal. At each time point, 2 mL of blood was collected. PK parameters of bilayer FDC tablet formulation of DTG and 3TC was evaluated under fasted conditions in Periods 1 and 2 of Part 2.

Area Under the Concentration-time Curve From Time 0 to the Last Quantifiable Time Point (AUC[0-t]) of Plasma DTG and 3TC in the Fasted State: Part 1
Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12, 16, 24, 48 and 72 hours post-dose

Blood samples were collected at indicated time points to study the PK profile of DTG and 3TC when administered as FDC tablet compared to co-administration of separate tablet formulations of DTG and 3TC in fasted state. The 4-hour post-dose sample was drawn prior to the participant's first post-dose meal. At each time point, 2 mL of blood was collected. PK parameters of monolayer FDC tablet formulation of DTG and 3TC was evaluated under fasted condition in Periods 1 and 2 of Part 1.

AUC(0-t) of Plasma DTG and 3TC in the Fasted State: Part 2
Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12, 16, 24, 48 and 72 hours post-dose

Blood samples were collected at indicated time points to study the PK profile of DTG and 3TC when administered as FDC tablet compared to co-administration of separate tablet formulations of DTG and 3TC in fasted state. The 4-hour post-dose sample was drawn prior to the participant's first post-dose meal. At each time point, 2 mL of blood was collected. PK parameters of bilayer FDC tablet formulation of DTG and 3TC was evaluated under fasted condition in Periods 1 and 2 of Part 2.

Maximum Observed Concentration (Cmax) of Plasma DTG and 3TC in the Fasted State: Part 1
Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12, 16, 24, 48 and 72 hours post-dose

Blood samples were collected at indicated time points to study the PK profile of DTG and 3TC when administered as FDC tablet compared to co-administration of separate tablet formulations of DTG and 3TC in fasted state. The 4-hour post-dose sample was drawn prior to the participant's first post-dose meal. At each time point, 2 mL of blood was collected. PK parameters of monolayer FDC tablet formulation of DTG and 3TC was evaluated under fasted condition in Periods 1 and 2 of Part 1.

Cmax of Plasma DTG and 3TC in the Fasted State: Part 2
Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12, 16, 24, 48 and 72 hours post-dose

Blood samples were collected at indicated time points to study the PK profile of DTG and 3TC when administered as FDC tablet compared to co-administration of separate tablet formulations of DTG and 3TC in fasted state. The 4-hour post-dose sample was drawn prior to the participant's first post-dose meal. At each time point, 2 mL of blood was collected. PK parameters of bilayer FDC tablet formulation of DTG and 3TC was evaluated under fasted condition in Periods 1 and 2 of Part 2.

DTG: Area under the concentration-time curve from time 0 extrapolated to infinity (AUC[0-inf])
Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 9, 12, 16, 24, and 48 hours post-dose

Serial blood samples for pharmacokinetic (PK) analysis of DTG will be collected. From the plasma concentration-time data, the PK parameters will be determined.

DTG: maximum concentration observed (Cmax)
Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 9, 12, 16, 24, and 48 hours post-dose

Serial blood samples for PK analysis of DTG will be collected. From the plasma concentration-time data, the PK parameters will be determined.

3TC: AUC(0-inf)
Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 9, 12, 16, 24, and 48 hours post-dose

Serial blood samples for PK analysis of 3TC will be collected. From the plasma concentration-time data, the PK parameters will be determined.

3TC: Cmax
Pre-dose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 7, 9, 12, 16, 24, and 48 hours post-dose

Serial blood samples for PK analysis of 3TC will be collected. From the plasma concentration-time data, the PK parameters will be determined.

Maximum observed plasma concentration (Cmax) for DTG
Days 1 to 5 and days 15 to 21
Area under the concentration-time curve in 1 dosing interval AUC (tau) for DTG
Days 1 to 5 and days 15 to 21
Maximum observed plasma concentration (Cmax) for BMS-955176
Days 8-21
Area under the concentration-time curve in 1 dosing interval AUC (tau) for BMS-955176
Days 8-21
Single dose plasma DTG PK assessed by AUC (0-t) and AUC (0-infinity)
Blood samples (2 mililiter [mL]) for plasma PK parameters will be collected on Day 1 (pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12 hrs post-dose), Day 2 (24 and 36 hrs post-dose) and Day 3 (48 hrs post- dose) in each of the four treatment periods

To evaluate the single dose PK of DTG, area under the concentration-time curve from time zero to last time of quantifiable concentration (AUC \[0-t\]) and area under the concentration-time curve from time zero extrapolated to infinite time (AUC (0-infinity) will be assessed with DTG given alone and when given with Calcium Carbonate (co-administered in fed or fasted state or 2 hours (hrs) separation, fasted) or Ferrous Fumarate (co-administered in fed or fasted state or 2 hrs separation, fasted)

Single dose plasma DTG PK assessed by Cmax and C24
Blood samples (2 mL) for plasma PK parameters will be collected on Day 1 (pre-dose, 0.5, 1, 2, 3, 4, 6, 8, 12 hrs post-dose), day 2 (24 and 36 hrs post-dose) and day 3 (48 hrs post dose) in each of the four

To evaluate the single dose PK of DTG, maximum observed concentration (Cmax) and concentration at 24 hours post-dose (C24) will be assessed with DTG given alone and when given with Calcium Carbonate (co-administered in fed or fasted state or 2 hrs separation, fasted) or Ferrous Fumarate (co-administered in fed or fasted state or 2 hrs separation, fasted)

Composite of Methadone Pharmacokinetics
Day 3 (Period 1) and Day 5 (Period 2) at pre-dose, 1, 2, 3, 4. 6, 8, 12, 16, and 24 hours post-dose.

Steady state total and R-methadone PK measure: AUC (0-t), Cmax and Ct.

Composite of Pharmacokinetic Parameters following Dolutegravir administration with and without rilpivirine
Cohort 1: Period 1 and 3 on Day 5: pre-dose, 1, 2, 3, 4, 8, 12 and 24 hours post dose.

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-tau)), Maximum observed concentration (Cmax), Time of occurrence of Cmax (tmax), Pre-dose (trough) concentration at the end of the dosing interval (Ctau)

Composite of Pharmacokinetic Parameters following GSK1265744 administration with and without rilpivirine
Cohort 2: Period 2 and 3, Day 12: pre-dose, 1, 2, 3, 4, 5, 6, 9, 12, 16, and 24hrs post dose.

steady state, AUC(0-t), Cmax, tmax, and Ctau

Composite of Pharmacokinetic Parameters following rilpivirine administration with and without Dolutegravir
Cohort 1: Period 2, Day 11: pre-dose, 1, 2, 3, 4, 5, 6, 9, 12, 16, and 24hrs post dose. Period 3: Day 5 pre-dose 1, 2, 3, 4, 5, 6, 9, 12, 16, and 24hrs post dose

steady state, AUC(0-tau), Cmax, tmax, and Ctau

Composite of Pharmacokinetic Parameters following rilpivirine administration with and without GSK1265744
Cohort 2: Periods 1 and 3: Day 12: pre-dose, 1, 2, 3, 4, 8, 12 and 24hrs post dose

AUC(0-tau), Cmax, tmax, and Ctau

Composite of DTG pharmacokinetic parameters on Day 5 and Day 10: AUC(0-t), Cmax, C0, Ct, Cmin, CL/F, and t½.
Up to 24 hours post dose on Days 5 and 10

Samples will be collected at predose and 1, 2, 3, 4, 8, 12 and 24 hours post dose

Plasma PK parameters of DTG: Lag time before observation of drug concentrations in sampled matrix (tlag)
72 hours
Plasma PK parameters of DTG: Time of occurrence of Cmax (tmax)
72 hours
Plasma PK parameters of DTG: Maximum observed concentration (Cmax)
72 hours
Plasma PK parameters of DTG: Area under the concentration-time curve from time zero (pre-dose) to last time of quantifiable concentration (AUC(0-t))
72 hours
Plasma PK parameters of DTG: Area under the concentration-time curve from time zero (pre-dose) extrapolated to infinite time (AUC(0-infinity))
72 hours
Plasma PK parameters of DTG: Percentage of AUC(0-infinity) obtained by extrapolation (%AUCex)
72 hours
Plasma PK parameters of DTG: Terminal phase half-life (t1/2)
72 hours
Plasma PK parameters of DTG: Apparent clearance (CL/F)
72 hours
Plasma PK parameters of DTG: Apparent terminal phase volume of distribution (Vz/F)
72 hours
Plasma DTG AUC(0-infinity), AUC(0-t), and Cmax
48 hours post dose

Secondary Endpoints

Percentage of participants with plasma HIV-1 RNA <50 c/mL as per snapshot algorithm at Weeks 24 and 96
Weeks 24 and 96
Percentage of participants with HIV-RNA greater than or equal to (>=)50 c/mL as per snapshot algorithm at Weeks 24, 48, and 96
Weeks 24, 48 and 96
Change from Baseline in HIV-1 RNA at Weeks 24, 48 and 96
Baseline (Day 1) and Weeks 24, 48 and 96
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
DTG/3TCEXPERIMENTALParticipants will receive FDC of DTG/3TC once daily until Week 96.
BIC/FTC/TAFACTIVE_COMPARATORParticipants will receive BIC/FTC/TAF once daily until Week 96.
DTG + 3TC (50 mg+300 mg)EXPERIMENTALEligible participants will receive one 50 mg tablet of DTG plus one overencapsulated 300 mg 3TC tablet orally once daily upto 96 weeks; thereafter will receive DTG plus 3TC tablet upto Week 148 and will continue to receive this schedule until (i) DTG and 3TC are both locally approved for use as part of a dual regimen, and the single entities of DTG and 3TC are available to patients (e.g. through public health services), or (ii) the DTG/3TC FDC tablet, if required by local regulations, is available, , or (iii) the participant no longer derives clinical benefit, or (iv) the participant meets a protocol defined reason for discontinuation, or (v) development of the DTG plus 3TC dual regimen is terminated.
DTG + TDF/FTC FDC (50 mg+300/200 mg)ACTIVE_COMPARATOREligible participants will receive one 50 mg tablet of DTG plus one overencapsulated TDF/ FTC FDC (300/200 mg) tablet orally once daily upto 96 weeks; thereafter will receive DTG plus TDF/FTC FDC tablets upto Week 148 (open-label randomised phase).
DTG + 3TC (50 mg+300 mgEXPERIMENTALEligible participants will receive one 50 mg tablet of DTG plus one overencapsulated 300 mg 3TC tablet orally once daily upto 96 weeks; thereafter will receive DTG plus 3TC tablet upto Week 148 and will continue to receive this schedule until (i) DTG and 3TC are both locally approved for use as part of a dual regimen, and the single entities of DTG and 3TC are available to patients (e.g. through public health services), or (ii) the DTG/3TC FDC tablet, if required by local regulations, is available, , or (iii) the participant no longer derives clinical benefit, or (iv) the participant meets a protocol defined reason for discontinuation, or (v) development of the DTG plus 3TC dual regimen is terminated.
DTG/ABC/3TC FDCEXPERIMENTALAs per the randomization schedule subjects will be administered with DTG/ABC/3TC (50mg/600mg/300mg) FDC tablet OD up to Week 48 and if continued if applicable in the Continuation Phase. DTG/ABC/3TC FDC may be administered with or without food
ATV +RTV +TDF/FTC FDCACTIVE_COMPARATORAs per the randomization schedule subjects will be administered with ATV (300mg capsule) +RTV (100mg tablet) + TDF/FTC (300mg/200mg tablet) FDC OD up to Week 48. ATV+RTV+ TDF/FTC FDC must be taken with food
Dolutegravir 50mg Once DailyEXPERIMENTALAll subjects will receive 50mg dolutegravir once daily in combination with background antiretroviral therapy consisting of one abacavir/lamivudine fixed dose combination tablet once daily
dolutegravirEXPERIMENTALdolutegravir plus background antiretroviral therapy optimised at Day 8
Dolutegravir (N=~394):EXPERIMENTALDolutegravir 50mg once daily + abacavir/lamivudine as the fixed-dose combination once daily + Atripla placebo once daily
Atripla (N=~394):ACTIVE_COMPARATORAtripla once daily + Dolutegravir placebo once daily + abacavir/lamivudine as the fixed-dose combination placebo once daily
Treatment sequence A/B: Part 1EXPERIMENTALEligible subjects will be randomized in sequence A/B and will receive A: DTG 50 milligram (mg) and 3TC 300 mg single entities in Period 1, B: DTG 3TC FDC formulation 1 tablet in Period 2.
Treatment sequence B/A: Part 1EXPERIMENTALEligible subjects will be randomized in sequence B/A and will receive B: DTG 3TC FDC formulation 1 tablet in Period 1 and A: DTG 50 mg and 3TC 300 mg single entities in Period 2.
Subjects receiving high fat meal: Part 1EXPERIMENTALEligible subjects will be administered single dose of DTG 3TC FDC formulation 1 tablet with high fat meal in Period 3 to study the effect of food on tablet.
Treatment sequence A/C: Part 2EXPERIMENTALEligible subjects will be randomized in sequence A/B and will receive A: DTG 50 mg and 3TC 300 mg single entities in Period 1 and C: DTG 3TC FDC formulation 2 tablet in Period 2.
Treatment sequence C/A: Part 2EXPERIMENTALEligible subjects will be randomized in sequence C/A and will receive C: DTG 3TC FDC formulation 2 tablet in Period 1 and A: DTG 50 milligram (mg) and 3TC 300 mg single entities in Period 2.
Subjects receiving high fat meal: Part 2EXPERIMENTALEligible subjects will be administered single dose of DTG 3TC FDC formulation 2 tablet with high fat meal in Period 3 to study the effect of food on tablet.
Treatment Sequence ABCEXPERIMENTALSubject will receive reference treatment DTG 50mg and 3TC 300mg administered as single entity tablets (treatment A) in period 1, experimental Dolutegravir/Lamivudine 50 mg/300 mg FDC tablet (Product Code AA, treatment B) in period 2 and experimental Dolutegravir/Lamivudine 50 mg/300 mg FDC tablet (Product Code AB, treatment C) in period 3 in a fasted state. There will be at least 7 days washout between dosing periods.
Treatment Sequence BCAEXPERIMENTALSubject will receive experimental Dolutegravir/Lamivudine 50 mg/300 mg FDC tablet (Product Code AA, treatment B) in period 1 and experimental Dolutegravir/Lamivudine 50 mg/300 mg FDC tablet (Product Code AB, treatment C) in period 2 and reference treatment DTG 50mg and 3TC 300mg administered as single entity tablets (treatment A) in period 3 in a fasted state. There will be at least 7 days washout between dosing periods.
Treatment Sequence CABEXPERIMENTALSubject will receive experimental Dolutegravir/Lamivudine 50 mg/300 mg FDC tablets (Product Code AB, treatment C) in period 1 and reference treatment DTG 50mg and 3TC 300mg administered as single entity tablets (treatment A) in period 2 and experimental Dolutegravir/Lamivudine 50 mg/300 mg FDC tablets (Product Code AA, treatment B) in period 3 in a fasted state. There will be at least 7 days washout between dosing periods.
Treatment Sequence ACBEXPERIMENTALSubject will receive reference treatment DTG 50mg and 3TC 300mg administered as single entity tablets (treatment A) in period 1, experimental Dolutegravir/Lamivudine 50 mg/300 mg FDC tablets (Product Code AB, treatment C) in period 2 and experimental Dolutegravir/Lamivudine 50 mg/300 mg FDC tablets (Product Code AA, treatment B) in period 3 in a fasted state. There will be at least 7 days washout between dosing periods.
Treatment Sequence BACEXPERIMENTALSubject will receive experimental Dolutegravir/Lamivudine 50 mg/300 mg FDC tablets (Product Code AA, treatment B) in period 1 and reference treatment DTG 50mg and 3TC 300mg administered as single entity tablets (treatment A) in period 2 and experimental Dolutegravir/Lamivudine 50 mg/300 mg FDC tablets (Product Code AB, treatment C) in period 3 in a fasted state. There will be at least 7 days washout between dosing periods.
Treatment Sequence CBAEXPERIMENTALSubject will receive experimental Dolutegravir/Lamivudine 50 mg/300 mg FDC tablets (Product Code AB, treatment C) in period 1 and experimental Dolutegravir/Lamivudine 50 mg/300 mg FDC tablets (Product Code AA, treatment B) in period 2 and reference treatment DTG 50mg and 3TC 300mg administered as single entity tablets (treatment A) in period 3 in a fasted state. There will be at least 7 days washout between dosing periods.
Treatment AEXPERIMENTALSingle DTG tablet under fed conditions for a specified period
Treatment BEXPERIMENTALTwo BMS955176 tablets under fed conditions for a specified period
Treatment CEXPERIMENTALSingle DTG tablet and Two BMS955176 tablets under fed conditions for a specified period
Cohort 1EXPERIMENTALSubjects in this cohort will take part in 4 treatment periods with one of the following treatments in each period. Subjects will receive all four treatments (one per period) in a random order. Treatment A = single dose DTG 50 mg fasted. Treatment B = single dose DTG 50 mg + Calcium Carbonate 1200 mg fasted. Treatment C = single dose of DTG 50 mg + Calcium Carbonate 1200 mg fed. Treatment D = single dose DTG 50 mg 2 hours prior to single dose Calcium Carbonate 1200 mg fasted
Cohort 2EXPERIMENTALSubjects in this cohort will take part in 4 treatment periods with one of the following treatments in each period. Subjects will receive all four treatments (one per period) in a random order. Treatment A = single dose DTG 50 mg fasted. Treatment E = single dose DTG 50 mg + Ferrous Fumarate 324 mg fasted. Treatment F = single dose of DTG 50 mg + Ferrous Fumarate 324 mg fed. Treatment G = single dose DTG 50 mg 2 hours prior to single dose Ferrous Fumarate 324 mg fasted
Period 1OTHERSubjects will be on individualize stable dose of methdaone for 8 days.
Period 2OTHERSubjects will be on individualize stable dose of methadone and open label doses of 50mg Dolutegravir (DTG) every 12 hours for 5 days.
Part 1EXPERIMENTALIn Part 1, approximately 12 healthy subjects will receive DTG 50mg q24h for 5 days in Period 1. Subjects will then be administered DTG 50mg q24h in combination with prednisone 60mg for 5 days followed by a 5 day taper (60 mg Days 1-5, 50 mg Day 6, 40 mg Day 7, 30 mg Day 8, 20 mg Day 9 and 10 mg Day 10 - total duration of 10 days) in Period 2. There will be a screening visit 30 days before the first dose and a follow-up visit 7-14 days after the last dose of drug.
Part 2EXPERIMENTALIf DTG Cτ is reduced by more than 50% in Part 1, Part 2 will be carried out where a second cohort of subjects will receive DTG 50mg q24h DTG for 5 days in Period 1 followed by DTG 50mg q24h in combination with prednisone 20mg for 5 days followed by a 5 day taper (20 mg Days 1-5, 10 mg Days 6 and 7, 5 mg Days 8-10 - total duration of 10 days) in Period 2. There will be a screening visit 30 days before the first dose and a follow-up visit 7-14 days after the last dose of drug.
Single armEXPERIMENTALSubjects will have a screening visit within 30 days prior to the first dose of study drug, five treatment periods containing a single dose of study drug, followed by 48 hours of serial PK collection. In the 5 treatment periods subjects will receive DTG granule formulation 1) directly to mouth; 2) with purified water; 3) with Contrex brand water; and 4) with milk-based infant formula. They will also receive the current 50 mg tablet formulation administered with tap water. These treatments will be administered in a random order. Subjects will check out of the unit on Day 3 after the 48 hour PK sample in each period. Study periods will be separated by at least 5 days. Subjects will have a follow-up visit 5-7 days after last dose of DTG given.

Interventions

NameTypeDescription
DolutegravirDRUGDolutegravir will be administered once daily.
LamivudineDRUGLamivudine will be administered once daily.
BictegravirDRUGBictegravir will be administered once daily.
EmtricitabineDRUGEmtricitabine will be administered once daily.
Tenofovir alafenamideDRUGTenofovir alafenamide will be administered once daily.
Dolutegravir (DTG)DRUGDTG is available as 50 mg white, round, biconvex, film coated tablet debossed on one side with 'SV 572' and on the other side with '50'. The tablets are packaged into high density polyethylene (HDPE) bottles with induction seals and child resistant closures. Each 45 ml bottle contains 30 tablets and a desiccant. DTG 50 mg tablet will be orally administered once daily with or without food upto 148 weeks.
Lamivudine (3TC)DRUGLamivudine is available as swedish orange, 'AA' sized elongated double blind HPMC capsules containing 300 mg lamivudine to visually match overencapsulated TDF/FTC FDC tablet. The capsules are packaged into HDPE bottles with induction seals and child resistant closures. Each 150 mL bottle contains 30 capsules and a desiccant. Overencapsulated 3TC 300 mg tablet will be orally administered once daily with or without food upto 96 weeks. From Week 96 to Week 148, lamivudine will be dispensed as 300 mg white, diamond shaped, scored, film coated tablets debossed with 'GX CJ7' on both sides, packed in over labelled HDPE bottles with child-resistant closures each containing 30 tablets.
Tenofovir disoproxil fumarate/Emtricitabine (TDF/FTC FDC)DRUGTenofovir disoproxil fumarate and Emtricitabine are available as swedish orange, 'AA' sized elongated double blind HPMC capsules containing 300 mg TDF and 200 mg FTC to visually match overencapsulated 3TC tablet. The capsules are packaged into HDPE bottles with induction seals and child resistant closures. Each 150 mL bottle contains 30 capsules and a desiccant. Overencapsulated tenofovir disoproxil fumarate/emtricitabine tablet will be orally administered once daily with or without food upto 96 weeks. From Week 96 to Week 148, tenofovir disoproxil fumarate/emtricitabine will be dispensed as 300/200 mg white, blue, capsule shaped, film coated tablets debossed with 'GILEAD' on one side and '701' on another side, packed in overlabelled HDPE bottles with polypropylene childresistant closures each containing 30 tablets and a desiccant.
Dolutegravir/abacavir/lamivudine FDCDRUGDolutegravir/abacavir/lamivudine FDC tablets, 50 mg/600 mg/300 mg
AtazanavirDRUGAtazanavir capsule 300 mg
RitonavirDRUGRitonavir tablet 100 mg
Tenofovir/emtricitabine FDCDRUGTenofovir/emtricitabine FDC tablet 300 mg/200 mg of FTC
AtriplaDRUGAtripla once daily on an empty stomach
Abacavir/LamivudineDRUGtaken once daily; also known as EPZICOM
Abacavir/Lamivudine PlaceboDRUGmatching placebo taken once daily
Dolutegravir placeboDRUGmatching placebo taken once daily
Atripla placeboDRUGmatching placebo taken once daily on an empty stomach
Dolutegravir + Lamivudine FDC Formulation 1DRUGSingle dose of DTG 50 mg combined with 3TC 300 mg in a FDC formulation 1 tablet will be administered to randomized subjects in treatment periods 1 and 2 (under fasted state) of Part 1 and the first 16 subjects in treatment period 3 (under fed) of Part 1 with 240 mL of room temperature water. \&lt;br\&gt;FDC formulation 1 tablets will be oval, biconvex, white, film coated tablet engraved 'SV H7I' on one face.
Dolutegravir + Lamivudine FDC Formulation 2DRUGSingle dose of DTG 50 mg combined with 3TC 300 mg in a FDC formulation 2 tablet will be administered to randomized subjects in treatment periods 1 and 2 (under fasted state) and the first 16 subjects in treatment period 3 (under fed) of Part 2 with 240 mL of room temperature water. \&lt;br\&gt;FDC formulation 2 tablets will be oval, biconvex, white, film coated tablet engraved 'SV 13N' on one face.
Dolutegravir 50 mg tabletDRUGA white, film-coated, round tablet debossed with SV 572 on one side and 50 on the other side. Single dose of one tablet will be administered with 240 mL of water.
Lamivudine 300 mg tabletDRUGGray, diamond-shaped tablet, engraved "GX EJ7" on one side and plain on the other side. Single dose of one tablet will be administered with 240 mL of water.
Dolutegravir/Lamivudine 50 mg/300 mg Tablet (Product Code AA)DRUGImmediate release oval tablet embossed 'gsk' on one face with white film coat. Single dose of one tablet will be administered with 240 mL of water.
Dolutegravir/Lamivudine 50 mg/300 mg Tablet (Product Code AB)DRUGImmediate release oval tablet embossed 'gsk' on one face with white film coat. Single dose of one tablet will be administered with 240 mL of water.
BMS955176DRUGBMS955176
Dolutegravir 50 mgDRUGOne tablet ( 50 mg) will be administered orally as a single dose in each period per the random code
Calcium Carbonate 1200 mgDRUGTwo tablets (2 X 600 mg) will be administered orally as a single dose in three out of four periods to Cohort 1 only per the random code. Calcium carbonate will be given in fasted state, fed state and 2 hours before dolutegravir administration.
Ferrous Fumarate 324 mgDRUGOne tablet (324 mg) will be administered orally as a single dose in three out of four periods to Cohort 2 only per the random code. Ferrous fumarate will be given in fasted state, fed state and 2 hours before dolutegravir administration.
MethadoneDRUGMethadone is a synthetic opioid used in the treatment of opioid dependence. Subjects will be on individualize stabe dose for 8 days.
RlipivirineDRUG25mg q24h
GSK1265744DRUG30mg q24h
PrednisoneDRUGPrednisone is a commonly used corticosteroid used for a variety of medical condiitons
Dolutegravir 50 mg oral granulesDRUGDolutegravir is an experimental drug in the integrase inhibitor class for the treatment of HIV.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites64

Inclusion Criteria: * Participants with age \>=18 years (or older, if required by local regulations) at the time of obtaining informed consent. * An individual participant is eligible to participate if they are not pregnant (as confirmed by a negative serum human chorionic gonadotropin (hCG) test a...

Countries:ArgentinaBelgiumDenmarkFranceGermanyGreeceIrelandIsraelItalyJapanMexicoPolandPortugalSpainSwedenSwitzerlandUnited KingdomUnited StatesAustraliaCanadaNetherlandsRomaniaRussiaSouth AfricaSouth KoreaTaiwanPeruPuerto RicoThailand
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Recent Changes (Last 90 Days)

HIGHJul 2, 2026NCT05979311Enrollment: 473 → 307
HIGHJul 2, 2026NCT05979311Enrollment: 473 → 307
HIGHJul 2, 2026NCT05979311Enrollment: 473 → 307

Frequently asked questions about Dolutegravir

What is Dolutegravir used for?

Dolutegravir is an investigational small molecule being developed for the treatment of HIV infections, including Human Immunodeficiency Virus I, HIV Infections, and co-infections with Hepatitis and Herpesviridae. It is currently in Phase 3 clinical development.

Who makes Dolutegravir?

Dolutegravir is being developed by GSK plc, which trades under the ticker GSK. The company is conducting clinical trials to evaluate the drug's safety and efficacy in treating HIV infections.

What phase is Dolutegravir in?

Dolutegravir is in Phase 3 clinical development. It is an investigational drug and has not yet been approved by regulatory authorities. Clinical trials are ongoing to assess its effectiveness in treating HIV infections.

What clinical trials is Dolutegravir in?

Dolutegravir has been studied in multiple clinical trials, including NCT01353716, NCT01425099, NCT01762995, and NCT02738931. These trials have investigated its pharmacokinetics, drug interactions, and bioavailability in healthy volunteers and individuals with HIV.

Is Dolutegravir the same as Dolutegravir/Rilpivirine FDC?

Dolutegravir is also known as Dolutegravir/Rilpivirine FDC, Dolutegravir/Rilpivirine, Dolutegravir/Lamivudine (DTG/3TC), and Dolutegravir/Lamivudine. These names refer to fixed-dose combinations that include dolutegravir as a component.

How does Dolutegravir work?

Dolutegravir is a small molecule that targets HIV integrase, an enzyme essential for viral replication. By inhibiting this enzyme, it prevents the virus from integrating its genetic material into host cells, thereby reducing viral load in infected individuals.