Evaluating a new treatment for prostate cancer in men with liver impairment

An Open-Label, Single-Dose Study to Evaluate the Pharmacokinetics of MK-5684 in Male Participants With Moderate Hepatic Impairment

PHASE1 · Merck Sharp & Dohme LLC · NCT06860243

This study is testing a new prostate cancer medication called opevesostat in men with liver issues to see how it works in their bodies compared to healthy men.

Quick facts

PhasePHASE1
Study typeInterventional
Enrollment16 (estimated)
Ages18 Years and up
SexMale
SponsorMerck Sharp & Dohme LLC (industry)
Locations2 sites (Miami, Florida and 1 other locations)
Trial IDNCT06860243 on ClinicalTrials.gov

What this trial studies

This study evaluates the pharmacokinetics of a new medication called opevesostat in male participants, specifically focusing on those with moderate hepatic impairment compared to healthy individuals. The goal is to understand how the drug behaves in the body over time, which is crucial for determining its safety and efficacy. Participants will receive opevesostat along with other medications, and their responses will be monitored closely. This phase 1 study aims to gather essential data that could inform future treatment options for prostate cancer.

Who should consider this trial

Good fit: Ideal candidates include male participants with moderate hepatic impairment and a stable diagnosis of chronic liver insufficiency.

Not a fit: Patients with a history of cancer, certain viral infections, or significant cardiac issues may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment options for prostate cancer patients with liver impairment.

How similar studies have performed: While this approach is novel in evaluating opevesostat specifically in patients with liver impairment, similar pharmacokinetic studies have shown promise in other contexts.

Eligibility criteria

Show full inclusion / exclusion criteria
The main inclusion criteria include but are not limited to the following:

* All participants:
* Is a continuous non-smoker or moderate smoker (≤ 10 cigarettes per day or equivalent) for at least 3 months prior to dosing
* Has body mass index (BMI) ≥ 18.0 and ≤ 42.0 kg/m2
* Participants with moderate hepatic impairment:
* Has a diagnosis of chronic, stable, hepatic insufficiency with features of cirrhosis due to any etiology

The main exclusion criteria include but are not limited to the following:

* All participants:
* Has a first-degree relative with multiple unexplained syncopal events, unexplained cardiac arrest, or sudden cardiac death, or has a known family history of an inherited arrhythmia syndrome (including Brugada syndrome)
* Has a history of cancer (malignancy)
* Has positive results for human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV)
* Participants with moderate hepatic impairment
* Has unstable electrolyte abnormalities or electrolyte abnormalities that are considered difficult to manage for participants with hepatic impairment
* Has a history of liver or other solid organ transplantation

Where this trial is running

Miami, Florida and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Hepatic Impairment, Healthy Participants

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.