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Doravirine+ tenofovir DF+ lamivudine

Phase 3

HIV-1-infection | Small molecule | Infectious Disease |Merck & Company, Inc.|Last Updated: Jul 27, 2026

Target and mechanism

ModalitySmall molecule

Also known as Doravirine

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment610

FDA Designations

No designations recorded

Clinical trial landscape

Doravirine+ tenofovir DF+ lamivudine · 1 trial · 1 indication

Phase 3 1
NCT06203132DORAvirine Versus DOlutegravir Based Antiretroviral Regimens in Treatment-naïve People Living With HIV-1 InfectionHIV-1-infection
RECRUITING610 Analytics
PHASE3RECRUITING
DORAvirine Versus DOlutegravir Based Antiretroviral Regimens in Treatment-naïve People Living With HIV-1 Infection
HIV-1-infectionUnlock trial analytics

Study Endpoints

Primary Endpoints

Non-inferiority of doravirine in combination with tenofovir and lamivudine as compared to dolutegravir in combination with tenofovir and lamivudine or emtricitabine in terms of virological efficacy at week 48
Week 48

The non-inferiority will be assessed in terms of virologic efficacy at week 48 under allocated treatment using the FDA snapshot algorithm (window period of 42-54 weeks), and measured by the proportion of subjects achieving a rate of HIV 1 RNA \<50 copies/mL, in HIV-1 infected, treatment-naive subjects with pre-treatment viral load (HIV-1 RNA) ≥ 1,000 copies/mL. The rate of HIV 1 RNA will be measured by RT-PCR.

Secondary Endpoints

Occurrence of obesity
Week 48; Week 96
Occurrence of insulin resistance
Week 48; Week 96
Occurrence of hypertension
Week 48; Week 96
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Doravirine armEXPERIMENTALDoravirine (100 mg) + tenofovir DF (300 mg) + lamivudine (300mg) administered daily
Dolutegravir armACTIVE_COMPARATORDolutegravir (50 mg) + tenofovir DF 300 mg + XTC (300 mg if lamivudine or 200 mg if emtricitabine) administered daily

Interventions

NameTypeDescription
Doravirine + tenofovir DF + lamivudineDRUGOral administration
Dolutegravir + tenofovir DF + lamivudine or emtricitabineDRUGOral administration
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites19

Inclusion Criteria: * Be at least 18 years of age on the day of signing the informed consent. * Be HIV-1 positive as determined according to national testing strategies * Have a plasma HIV-1 RNA ≥1000 copies/mL within 30 days prior to the randomization, * Have HIV treatment indication based on phys...

Countries:BrazilCameroonCôte d’IvoireFranceMozambiqueThailand
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Frequently asked questions about Doravirine+ tenofovir DF+ lamivudine

What is Doravirine used for?

Doravirine is an investigational small molecule being studied for the treatment of HIV-1 infection, including in patients with renal impairment. It is being developed as a single agent and in combination with tenofovir DF and lamivudine for virologically suppressed HIV-1-infected adults.

What does Doravirine target?

Doravirine is a non-nucleoside reverse transcriptase inhibitor (NNRTI) that targets the reverse transcriptase enzyme of HIV-1. By inhibiting this enzyme, it interferes with viral replication. The drug is being studied in combination with other antiretrovirals to maintain viral suppression in HIV-1-infected patients.

Who makes Doravirine?

Doravirine is being developed by Merck & Company, Inc. (NYSE: MRK). The company is conducting clinical trials to evaluate the drug's safety and efficacy in HIV-1-infected participants, including those switching from other antiretroviral regimens.

What phase is Doravirine in?

Doravirine is in Phase 2 clinical development. While some completed trials were Phase 1 and Phase 3, the most recent completed trial was a Phase 2 study evaluating a switch to doravirine, tenofovir, and lamivudine in virologically suppressed participants.

What clinical trials is Doravirine in?

Doravirine has been studied in several clinical trials, including NCT01466985, a Phase 1 study in HIV-1-infected participants; NCT02089659, a Phase 1 hepatic impairment study; NCT02397096, a Phase 3 switch study; and NCT02652260, a Phase 2 switch study from efavirenz-based therapy.

Is Doravirine the same as doravirine plus tenofovir DF and lamivudine?

Doravirine is the single-agent form, while doravirine plus tenofovir DF and lamivudine is a fixed-dose combination being studied under the code MK-1439A. Clinical trials have evaluated both the single agent and the combination in HIV-1-infected patients.