Last Updated: June 23, 2026

CLINICAL TRIALS PROFILE FOR DORAVIRINE; ISLATRAVIR


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All Clinical Trials for DORAVIRINE; ISLATRAVIR

Trial ID Title Status Sponsor Phase Start Date Summary
NCT03272347 ↗ Islatravir (MK-8591) With Doravirine and Lamivudine in Participants Infected With Human Immunodeficiency Virus Type 1 (MK-8591-011) Active, not recruiting Merck Sharp & Dohme Corp. Phase 2 2017-11-27 This study will evaluate the safety, tolerability, antiretroviral activity, and pharmacokinetics of 3 doses of islatravir (MK-8591) in combination with doravirine (DOR) and lamivudine (3TC) administered to antiretroviral treatment-naïve adult participants with human immunodeficiency virus type 1 (HIV-1) infection.
NCT04223778 ↗ Safety and Efficacy of a Switch to Doravirine/Islatravir in Participants With HIV-1 (MK-8591A-017)) Active, not recruiting Merck Sharp & Dohme Corp. Phase 3 2020-02-18 This study will evaluate the safety and efficacy of a switch to MK-8591A (a fixed dose combination of doravirine and islatravir) in human immunodeficiency virus -1 (HIV-1)-infected participants virologically suppressed on a protocol-specified antiretroviral regimen. The primary hypothesis is that a switch to MK-8591A will be non-inferior to continued treatment with baseline antiretroviral therapy (ART) as assessed by the proportion of participants with HIV-1 ribonucleic acid (RNA) ≥50 copies/mL at Week 48.
NCT04223791 ↗ Switch to Doravirine/Islatravir (DOR/ISL) in Human Immunodeficiency Virus 1 (HIV-1) Participants Treated With Bictegravir/Emtricitabine/Tenofovir Alafenamide (BIC/FTC/TAF) (MK-8591A-018) Active, not recruiting Merck Sharp & Dohme Corp. Phase 3 2020-02-18 This study will evaluate the safety and efficacy of a switch to MK-8591A (a fixed dose combination of doravirine and islatravir) in human immunodeficiency virus -1 (HIV-1)-infected participants virologically suppressed on a regimen of bictegravir/emtricitabine/tenofovir alafenamide (BIC/FTC/TAF). The primary hypothesis is that a switch to MK-8591A will be non-inferior to continued treatment with BIC/FTC/TAF as assessed by the proportion of participants with HIV-1 ribonucleic acid (RNA) ≥50 copies/mL at Week 48.
NCT04233216 ↗ Doravirine/Islatravir (DOR/ISL) in Heavily Treatment-Experienced (HTE) Participants for Human Immunodeficiency Virus Type 1 (HIV-1) Infection (MK-8591A-019) Recruiting Merck Sharp & Dohme Corp. Phase 3 2020-03-18 This is a 2-part, phase 3 clinical study evaluating the antiretroviral activity and safety/tolerability of islatravir (ISL), doravirine (DOR), and a fixed dose combination (FDC) of DOR/ISL (also known as MK-8591A) in heavily treatment-experienced (HTE) participants with human immunodeficiency virus type 1 (HIV-1) infection. It is hypothesized that the percentage of participants receiving DOR/ISL to achieve ≥0.5 log10 decrease in HIV-1 ribonucleic acid (RNA) from study baseline (Day 1) to Day 8 is superior to placebo, each given in combination with failing antiretroviral therapy (ART).
NCT04233879 ↗ Randomized, Double-blind, Efficacy, and Safety Study of Doravirine/Islatravir (DOR/ISL) in Treatment-naïve Participants With Human Immunodeficiency Virus Type 1 (HIV-1) Infection (MK-8591A-020) Recruiting Merck Sharp & Dohme Corp. Phase 3 2020-02-28 This is a phase 3, randomized, controlled, double-blind, multisite clinical study of a once-daily fixed dose combination (FDC) of 100 mg doravirine/0.75 mg islatravir (DOR/ISL [also known as MK-8591A]) in treatment-naïve participants with human immunodeficiency virus type-1 (HIV-1) infection. The primary objectives are to evaluate the antiretroviral activity, safety, and tolerability of DOR/ISL compared to bictegravir/emtricitabine/tenofovir alafenamide (BIC/FTC/TAF). The primary hypothesis is that DOR/ISL is noninferior or superior to BIC/FTC/TAF treatment based on the percentage of participants with HIV-1 ribonucleic acid (RNA)
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for DORAVIRINE; ISLATRAVIR

Condition Name

Condition Name for DORAVIRINE; ISLATRAVIR
Intervention Trials
HIV-1 Infection 8
HIV Infection 3
Healthy 2
HIV Infections 1
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Condition MeSH

Condition MeSH for DORAVIRINE; ISLATRAVIR
Intervention Trials
Infections 5
Infection 4
HIV Infections 3
Communicable Diseases 2
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Clinical Trial Locations for DORAVIRINE; ISLATRAVIR

Trials by Country

Trials by Country for DORAVIRINE; ISLATRAVIR
Location Trials
United States 62
France 38
Russian Federation 18
Germany 13
Italy 13
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Trials by US State

Trials by US State for DORAVIRINE; ISLATRAVIR
Location Trials
Texas 6
Missouri 6
Florida 6
District of Columbia 6
Georgia 5
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Clinical Trial Progress for DORAVIRINE; ISLATRAVIR

Clinical Trial Phase

Clinical Trial Phase for DORAVIRINE; ISLATRAVIR
Clinical Trial Phase Trials
PHASE1 2
Phase 3 9
Phase 2 2
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Clinical Trial Status

Clinical Trial Status for DORAVIRINE; ISLATRAVIR
Clinical Trial Phase Trials
Not yet recruiting 5
Recruiting 5
Active, not recruiting 3
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Clinical Trial Sponsors for DORAVIRINE; ISLATRAVIR

Sponsor Name

Sponsor Name for DORAVIRINE; ISLATRAVIR
Sponsor Trials
Merck Sharp & Dohme Corp. 7
Merck Sharp & Dohme LLC 6
Centre de Recherches et d'Etude sur la Pathologie Tropicale et le Sida 1
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Sponsor Type

Sponsor Type for DORAVIRINE; ISLATRAVIR
Sponsor Trials
Industry 13
Other 1
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