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

NCT ID: NCT05979311

Last Updated: 2025-12-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE3

Total Enrollment

473 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-02-09

Study Completion Date

2027-02-23

Brief Summary

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This study will compare safety, efficacy, participant reported outcomes and implementation outcomes of a fixed dose combination (FDC) of a two-drug regimen dolutegravir (DTG) plus lamivudine (3TC) and a three-drug regimen FDC of bictegravir (BIC), emtricitabine (FTC) and tenofovir alafenamide (TAF) in HIV-1 infected adult participants who have not previously received antiretroviral therapy.

Detailed Description

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Conditions

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HIV HIV Infections

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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DTG/3TC

Participants will receive FDC of DTG/3TC once daily until Week 96.

Group Type EXPERIMENTAL

Dolutegravir

Intervention Type DRUG

Dolutegravir will be administered once daily.

Lamivudine

Intervention Type DRUG

Lamivudine will be administered once daily.

BIC/FTC/TAF

Participants will receive BIC/FTC/TAF once daily until Week 96.

Group Type ACTIVE_COMPARATOR

Bictegravir

Intervention Type DRUG

Bictegravir will be administered once daily.

Emtricitabine

Intervention Type DRUG

Emtricitabine will be administered once daily.

Tenofovir alafenamide

Intervention Type DRUG

Tenofovir alafenamide will be administered once daily.

Interventions

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Dolutegravir

Dolutegravir will be administered once daily.

Intervention Type DRUG

Lamivudine

Lamivudine will be administered once daily.

Intervention Type DRUG

Bictegravir

Bictegravir will be administered once daily.

Intervention Type DRUG

Emtricitabine

Emtricitabine will be administered once daily.

Intervention Type DRUG

Tenofovir alafenamide

Tenofovir alafenamide will be administered once daily.

Intervention Type DRUG

Eligibility Criteria

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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 at Screening and a negative urine hCG test at Enrollment) and not lactating.
* Antiretroviral-naïve (no prior therapy with any antiretroviral agent following a diagnosis of HIV-1 infection) person living with HIV.
* Participant (or participant's legally acceptable representative \[LAR\]) is capable of giving written informed consent.
* Eligible participants or their LAR must sign a written Informed Consent Form before any protocol-specified assessments are conducted. Enrollment of participants who are unable to provide direct informed consent is optional and will be based on local legal/regulatory requirements and site feasibility to conduct protocol procedures.
* Participants enrolled in France must be affiliated to, or a beneficiary of, a social security category.

Exclusion Criteria

* Individuals who are pregnant or breastfeeding or plan to become pregnant or breastfeed during the study.
* Any evidence of a current Centers for Disease Control and Prevention (CDC) Stage 3 disease; with the exception of cutaneous Kaposi's sarcoma not requiring systemic therapy, and CD4+ count \<200 cells per cubic millimeter (neither is exclusionary).
* History or presence of allergy or intolerance to the study drugs or their components or drugs of their class, or a history of drug or other allergy that, in the opinion of the Investigator or Medical Monitor, contraindicates study participation.
* Ongoing or clinically relevant pancreatitis.
* Ongoing malignancy other than cutaneous Kaposi's sarcoma, basal cell carcinoma, or resected, non-invasive cutaneous squamous cell carcinoma, or cervical intraepithelial neoplasia; other localized malignancies require agreement between the Investigator and the Medical Monitor for inclusion of the participant prior to enrollment.
* Participants with severe hepatic impairment (Class C) as determined by Child-Pugh classification.
* Unstable liver disease (as defined by any of the following: presence of ascites, encephalopathy, coagulopathy, hypoalbuminemia, esophageal or gastric varices, or persistent jaundice or cirrhosis), known biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones or otherwise stable chronic liver disease per investigator assessment).
* History of liver cirrhosis with or without hepatitis viral co-infection.
* Alanine aminotransferase (ALT) \>=5 times the upper limit of normal (ULN) or ALT \>=3\*ULN and bilirubin \>=1.5\*ULN (with \>35% direct bilirubin).
* Participants determined by the Investigator to have a high risk of seizures, including participants with an unstable or poorly controlled seizure disorder. A participant with a prior history of seizure may be considered for enrollment if the Investigator believes the risk of seizure recurrence is low. All cases of prior seizure history should be discussed with the Medical Monitor prior to enrollment.
* Participants who, in the investigator's judgment, pose a significant suicide risk. Participant's recent history of suicidal behavior and/or suicidal ideation should be considered when evaluating for suicide risk.
* Signs and symptoms which, in the opinion of the Investigator, are suggestive of active Coronavirus disease 2019 (COVID-19) (example fever, cough) infection within 14 days prior to enrollment.
* Evidence of Hepatitis B virus (HBV) infection based on the results of central lab testing at Screening for Hepatitis B surface antigen (HBsAg), Hepatitis B core antibody (HBcAb), Hepatitis B surface antibody (HBsAb) and HBV Deoxyribonucleic Acid (DNA) as follows:

a. Participants positive for HBsAg are excluded; b. Participants negative for HBsAb and negative for HBsAg but positive for hepatitis B core antibody (HBcAb) may be excluded based on the following consideration: i. Exclude if HBV DNA is detected \[either \<Lower Limit of Quantification (LLoQ), \>Upper Limit of Quantification (ULoQ) OR numerical value (i.e., between LLoQ and ULoQ)\] ii. Not excluded if HBV DNA is negative, not detected
* Participants with Hepatitis C virus (HCV) co-infection at Screening are eligible only if:

i. liver enzymes meet entry criteria; and ii. HCV disease is not anticipated to require on-study treatment with any agent(s) that have potential adverse drug-drug interactions (DDIs) with the study interventions; and iii. HCV disease has undergone appropriate work-up and is not advanced and will not require treatment prior to the primary endpoint or later visit. Additional information on participants with HCV co-infection at screening should include results from any liver biopsy, Fibroscan, ultrasound, or other fibrosis evaluation, history of cirrhosis or other decompensated liver disease, prior treatment, and timing/plan for HCV treatment.

iv. In the event that recent biopsy or imaging data is not available or inconclusive, the Fib-4 score will be used to verify eligibility

1. Fib-4 score \>3.25 is exclusionary;
2. Fib-4 scores 1.45 - 3.25 requires Medical Monitor consultation.

Fibrosis 4 score Formula:

(Age \* Aspartate aminotransferase \[AST\]) / (Platelets \* (square root of ALT)

* Untreated syphilis infection (positive rapid plasma reagin \[RPR\] at Screening without clear documentation of treatment) are excluded. Participants with a false positive RPR (with negative treponemal test) or serofast RPR result (persistence of a reactive nontreponemal syphilis test despite history of adequate therapy and no evidence of re-exposure) may enroll after consultation with the Medical Monitor. Participants who completed treatment at least 7 days prior to Screening are eligible.
* Presence of any major resistance-associated mutations as defined by the International Antiviral Society-United States of America (IAS-USA) resistance guidelines to DTG, 3TC, BIC, FTC or TAF in the Screening result.
* Exposure to an experimental drug or experimental vaccine within either 30 days, 5 half-lives of the test agent, or twice the duration of the biological effect of the test agent (whichever is longer), prior to first dose of study treatment.
* Treatment with any of the following agents within 28 days of Screening:

i. radiation therapy; ii. cytotoxic chemotherapeutic agents; iii. tuberculosis therapy with the exception of isoniazid (isonicotinylhydrazid, INH); iv. immunomodulators that alter immune responses such as chronic systemic corticosteroids, interleukins, or interferons.
* Treatment with an HIV-1 immunotherapeutic vaccine within 90 days of Screening.
* Treatment with any agent with documented activity against HIV-1 in vitro within 28 days of first dose of study treatment. Treatment withacyclovir/valacyclovir is permitted.
* Participants receiving any protocol-defined prohibited medication and who are unwilling or unable to switch to an alternate medication.
* Any verified Grade 4 laboratory abnormality, with the exception of Grade 4 lipid abnormalities.
* Any acute laboratory abnormality at Screening, which, in the opinion of the investigator, would preclude the participant's participation in an interventional clinical trial.
* Participant has estimated creatine clearance \<30 milliliter per minute (mL/min) per 1.73 square meter using the refitted, race-neutral Chronic Kidney Disease Epidemiology Collaboration (CKD-EPIcr\_R) method.
* Participants known or suspected to have acquired HIV-1 concurrent with use of Pre-exposure prophylaxis (PrEP) or Post-exposure prophylaxis (PEP) must be discussed with the Medical Monitor prior to enrollment.
* Any condition which, in the opinion of the Investigator, may interfere with the absorption, distribution, metabolism or excretion of the study drugs or render the participant unable to receive study medication.
* Any pre-existing physical or mental condition (including substance use disorder) which, in the opinion of the Investigator, may interfere with the participant's ability to comply with the dosing schedule and/or protocol evaluations or which may compromise the safety of the participant.
* Participant is currently participating in, or anticipates being selected for, any other interventional study.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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ViiV Healthcare

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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GSK Investigational Site

Ciudad Autonoma de Buenos Aire, , Argentina

Site Status

GSK Investigational Site

Córdoba, , Argentina

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GSK Investigational Site

Antwerp, , Belgium

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GSK Investigational Site

Brussels, , Belgium

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GSK Investigational Site

Ghent, , Belgium

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GSK Investigational Site

Hvidovre, , Denmark

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GSK Investigational Site

Bordeaux, , France

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GSK Investigational Site

Bordeaux, , France

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GSK Investigational Site

Lyon, , France

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GSK Investigational Site

Montpellier, , France

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GSK Investigational Site

Nice, , France

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GSK Investigational Site

Nîmes, , France

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GSK Investigational Site

Paris, , France

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GSK Investigational Site

Paris, , France

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GSK Investigational Site

Paris, , France

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GSK Investigational Site

Paris, , France

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GSK Investigational Site

Berlin, , Germany

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GSK Investigational Site

Cologne, , Germany

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GSK Investigational Site

Frankfurt, , Germany

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GSK Investigational Site

Hamburg, , Germany

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GSK Investigational Site

München, , Germany

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GSK Investigational Site

Athens, , Greece

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GSK Investigational Site

Athens, , Greece

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GSK Investigational Site

Thessaloniki, , Greece

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GSK Investigational Site

Dublin, , Ireland

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GSK Investigational Site

Dublin, , Ireland

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GSK Investigational Site

Haifa, , Israel

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GSK Investigational Site

Ramat Gan, , Israel

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GSK Investigational Site

Rehovot, , Israel

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GSK Investigational Site

Tel Aviv, , Israel

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GSK Investigational Site

Bari, , Italy

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GSK Investigational Site

Bergamo, , Italy

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GSK Investigational Site

Padua, , Italy

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GSK Investigational Site

Pavia, , Italy

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GSK Investigational Site

Sassari, , Italy

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GSK Investigational Site

Aichi, , Japan

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GSK Investigational Site

Osaka, , Japan

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GSK Investigational Site

Tokyo, , Japan

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GSK Investigational Site

Tokyo, , Japan

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GSK Investigational Site

Mérida, , Mexico

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GSK Investigational Site

Bydgoszcz, , Poland

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Lodz, , Poland

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Wroclaw, , Poland

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GSK Investigational Site

Aveiro, , Portugal

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Porto, , Portugal

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GSK Investigational Site

Badalona, , Spain

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Barcelona, , Spain

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GSK Investigational Site

Elche Alicante, , Spain

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GSK Investigational Site

La Laguna-Tenerife, , Spain

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GSK Investigational Site

Madrid, , Spain

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GSK Investigational Site

Madrid, , Spain

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Madrid, , Spain

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GSK Investigational Site

Marbella, , Spain

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GSK Investigational Site

Palma de Mallorca, , Spain

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GSK Investigational Site

Palma de Mallorca, , Spain

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GSK Investigational Site

Valencia, , Spain

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GSK Investigational Site

Stockholm, , Sweden

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GSK Investigational Site

Basel, , Switzerland

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GSK Investigational Site

Zurich, , Switzerland

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GSK Investigational Site

Glasgow, , United Kingdom

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GSK Investigational Site

London, , United Kingdom

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GSK Investigational Site

London, , United Kingdom

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GSK Investigational Site

London, , United Kingdom

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GSK Investigational Site

London, , United Kingdom

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Countries

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Argentina Belgium Denmark France Germany Greece Ireland Israel Italy Japan Mexico Poland Portugal Spain Sweden Switzerland United Kingdom

Other Identifiers

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219816

Identifier Type: -

Identifier Source: org_study_id

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