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Islatravir (MK-8591) With Doravirine and Lamivudine in Participants Infected With Human Immunodeficiency Virus Type 1 (MK-8591-011)

Merck Sharp & Dohme (MSD) logo

Merck Sharp & Dohme (MSD)

Status and phase

Completed
Phase 2

Conditions

HIV-1 Infection

Treatments

Drug: Islatravir
Drug: Doravirine/Islatravir
Drug: Doravirine/Lamivudine/Tenofovir Disoproxil Fumarate
Drug: Placebo to Islatravir
Drug: Placebo to Doravirine
Drug: Placebo to Doravirine/Lamivudine/Tenofovir Disoproxil Fumarate
Drug: Doravirine
Drug: Lamivudine
Drug: Placebo to Lamivudine

Study type

Interventional

Funder types

Industry

Identifiers

NCT03272347
8591-011
2017-000437-32 (EudraCT Number)

Details and patient eligibility

About

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.

Enrollment

123 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Has HIV-1 infection
  • Is naïve to anti-retroviral therapy (ART).
  • Is clinically stable, with no signs or symptoms of acute infection, at the time of entry into the study
  • Female is not pregnant, not breastfeeding, not a woman of childbearing potential (WOCBP); but if WOCBP agrees to follow the contraceptive guidance
  • All participants, male and female, agree to use barrier methods of contraception when engaged in any sexual activity during treatment and for 6 weeks following treatment.

Exclusion criteria

  • Is a user of recreational or illicit drugs or has had a history of drug or alcohol abuse or dependence that may interfere with trial participation
  • Has significant hypersensitivity or other contraindication to any of the components of the study drugs
  • Has a history of malignancy ≤5 years prior
  • Female expects to donate eggs at any time during the study
  • Is breastfeeding or expecting to conceive
  • A WOCBP who has a positive urine pregnancy test on Day 1 before the first dose of study treatment
  • Has been treated for a viral infection other than HIV-1, such as hepatitis B, with an agent that is active against HIV-1
  • Has used systemic immunosuppressive therapy or immune modulators within 30 days prior to treatment in this study or is anticipated to need them during the course of the study
  • Requires any of the following prohibited medications: Carbamazepine, Phenobarbital, Phenytoin, Rifabutin, Rifampin, Herbal remedies, St. John's Wort, Modafinil, Bosentan, Nafcillin, Pentostatin
  • Is currently participating in or has participated in an interventional clinical trial with an investigational compound or device within 30 days of signing informed consent to participate in this current trial
  • Has a documented or known virologic resistance to any approved HIV-1 reverse transcriptase inhibitor, protease inhibitor, integrase inhibitor
  • Has active hepatitis C virus (HCV) coinfection defined as detectable HCV RNA or HBV co-infection defined as hepatitis B surface antigen [HBsAg]-positive
  • Has a current (active) diagnosis of acute hepatitis due to any cause
  • Has previously been randomized in a study and received islatravir (MK-8591), DOR, Doravirine, Tenofovir, Lamivudine, or 3TC.

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Double Blind

123 participants in 4 patient groups

Islatravir 0.25 mg
Experimental group
Description:
Participants will be treated once daily (QD) with 0.25 mg islatravir, 100 mg DOR, 300 mg 3TC, and placebo to doravirine/lamivudine/tenofovir disoproxil fumarate (DOR/3TC/TDF) for a minimum of 24 weeks. Between week 24 through week 52, 3TC and placebo to DOR/3TC/TDF may be discontinued. Around Week 60, participants may be switched to a selected open label dose of islatravir and DOR 100 mg QD and continue treatment until Week 144. At Week 144 participants will receive the fixed dose combination of doravirine (100mg)/islatravir (0.75mg) QD open label and will continue treatment until Week 192.
Treatment:
Drug: Lamivudine
Drug: Doravirine
Drug: Placebo to Doravirine/Lamivudine/Tenofovir Disoproxil Fumarate
Drug: Doravirine/Islatravir
Drug: Islatravir
Islatravir 0.75 mg
Experimental group
Description:
Participants will be treated QD with 0.75 mg islatravir, 100 mg DOR, 300 mg 3TC, and placebo to DOR/3TC/TDF for a minimum of 24 weeks. Between week 24 through week 52, 3TC and placebo to DOR/3TC/TDF may be discontinued. Around Week 60, participants may be switched to a selected open label dose of islatravir and DOR 100 mg QD and will continue treatment until Week 144. At Week 144 participants will receive the fixed dose combination of doravirine (100mg)/islatravir (0.75mg) QD open label and will continue treatment until Week 192.
Treatment:
Drug: Lamivudine
Drug: Doravirine
Drug: Placebo to Doravirine/Lamivudine/Tenofovir Disoproxil Fumarate
Drug: Doravirine/Islatravir
Drug: Islatravir
Islatravir 2.25 mg
Experimental group
Description:
Participants will be treated QD with 2.25 mg islatravir, 100 mg DOR, 300 mg 3TC, and placebo to DOR/3TC/TDF for a minimum of 24 weeks. Between week 24 through week 52, 3TC and placebo to DOR/3TC/TDF may be discontinued. Around Week 60, participants may be switched to a selected open label dose of islatravir and DOR 100 mg QD and will continue treatment until Week 144. At Week 144 participants will receive the fixed dose combination of doravirine (100mg)/islatravir (0.75mg) QD open label and will continue treatment until Week 192.
Treatment:
Drug: Lamivudine
Drug: Doravirine
Drug: Placebo to Doravirine/Lamivudine/Tenofovir Disoproxil Fumarate
Drug: Doravirine/Islatravir
Drug: Islatravir
DOR/3TC/TDF
Active Comparator group
Description:
Participants will be treated QD with placebo to islatravir, placebo to DOR, placebo to 3TC, and a fixed dose combination of DOR/3TC/TDF consisting of 100 mg DOR + 300 mg 3TC + 300 mg TDF for a minimum of 24 weeks. Between week 24 through week 52 placebo treatments may be discontinued and participants will receive only DOR/3TC/TDF QD open label up to Week 144. At Week 144 participants will receive the fixed dose combination of doravirine (100mg)/islatravir (0.75mg) QD open label and will continue treatment until Week 192.
Treatment:
Drug: Placebo to Islatravir
Drug: Placebo to Lamivudine
Drug: Doravirine/Lamivudine/Tenofovir Disoproxil Fumarate
Drug: Doravirine/Islatravir
Drug: Placebo to Doravirine

Trial documents
1

Trial contacts and locations

26

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Data sourced from clinicaltrials.gov

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