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Completed Phase 1 Interventional Accepts healthy volunteers Results available

Single-Dose Islatravir in Moderate Hepatic Impairment (MK-8591-030)

ClinicalTrials.gov ID: NCT04515641

Public ClinicalTrials.gov record NCT04515641. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 2, 2026, 10:30 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

An Open-Label, Single-Dose Study to Evaluate the Pharmacokinetics of Islatravir (MK-8591) in Participants With Moderate Hepatic Impairment

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is an open-label, single-dose study of the plasma pharmacokinetics (PK), safety, and tolerability of islatravir (ISL, MK-8591), and the intracellular PK of ISL triphosphate (ISL-TP) in male and female adult participants with moderate hepatic impairment and in healthy matched control participants.

Study identification

NCT ID
NCT04515641
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Enrollment
12 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 75 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 4, 2020
Primary completion
Sep 12, 2021
Completion
Sep 12, 2021
Last update posted
Jul 16, 2025

2020 – 2021

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Clinical Pharmacology of Miami ( Site 0001) Miami Florida 33014

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04515641, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jul 16, 2025 · Synced Sep 2, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04515641 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →