A Study to Evaluate Opevesostat (MK-5684) in Male Participants With Moderate Hepatic Impairment (MK-5684-009)

NCT ID: NCT06860243

Last Updated: 2026-01-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE1

Total Enrollment

16 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-05-13

Study Completion Date

2026-02-05

Brief Summary

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Researchers have designed a study medicine called opevesostat as a new way to treat prostate cancer.

The purpose of this study is to learn what happens to opevesostat in a person's body over time (a pharmacokinetic \[PK\] study). Researchers will compare what happens to opevesostat in the body when it is given to healthy participants and participants with moderate hepatic (liver) impairment.

Detailed Description

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Conditions

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Hepatic Impairment Healthy Participants

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Moderate Hepatic Impairment

On Day 1, participants with moderate hepatic impairment will receive a single oral dose of opevesostat under fasting conditions and a single dose of hormone replacement therapy (HRT) (prednisone and fludrocortisone acetate) under fed conditions approximately 4.5 hours after opevesostat dosing. Participants with moderate hepatic impairment will receive another dose of HRT on Day 2.

Group Type EXPERIMENTAL

Opevesostat

Intervention Type DRUG

Oral film-coated tablet

Prednisone

Intervention Type DRUG

Oral tablet

Fludrocortisone acetate

Intervention Type DRUG

Oral tablet

Healthy

On Day 1, healthy participants will receive a single oral dose of opevesostat under fasting conditions and a single dose of HRT (prednisone and fludrocortisone acetate) under fed conditions approximately 4.5 hours after opevesostat dosing.

Group Type EXPERIMENTAL

Opevesostat

Intervention Type DRUG

Oral film-coated tablet

Prednisone

Intervention Type DRUG

Oral tablet

Fludrocortisone acetate

Intervention Type DRUG

Oral tablet

Interventions

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Opevesostat

Oral film-coated tablet

Intervention Type DRUG

Prednisone

Oral tablet

Intervention Type DRUG

Fludrocortisone acetate

Oral tablet

Intervention Type DRUG

Other Intervention Names

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MK-5684

Eligibility Criteria

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Inclusion Criteria

* 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

Exclusion Criteria

* 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
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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Merck Sharp & Dohme LLC

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Medical Director

Role: STUDY_DIRECTOR

Merck Sharp & Dohme LLC

Locations

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Clinical Pharmacology of Miami ( Site 0002)

Miami, Florida, United States

Site Status

Texas Liver Institute ( Site 0001)

San Antonio, Texas, United States

Site Status

Countries

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United States

Other Identifiers

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MK-5684-009

Identifier Type: OTHER

Identifier Source: secondary_id

5684-009

Identifier Type: -

Identifier Source: org_study_id

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