A Clinical Trial of Multiple Formulations of MK-4082 in Healthy Overweight and Obese Participants (MK-4082-007)

August 27, 2026 updated by: Merck Sharp & Dohme LLC

A Study to Evaluate the Relative Bioavailability of Multiple Formulations of MK-4082 in Overweight/Obese Participants

Researchers are looking for new weight loss medicines for people with higher body weight. The study medicine, MK-4082, is different from similar weight loss medicines because people take it as a pill instead of an injection. Before giving a study medicine to people with a health condition, researchers first do studies to find a safe dose level (amount) and formulation (version) of the study medicine that can be used in future studies.

The goals of this study are to learn about:

The safety of different formulations of MK-4082 and if people tolerate them What happens to different formulations of MK-4082 in a person's body over time

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

48

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • United States
    • California
      • Chula Vista, California, United States, 91911
        • ProSciento Inc. ( Site 0002)
        • Contact:
          • Study Coordinator
          • Phone Number: 619-427-1300

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

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

  • Is in good health
  • Has a body mass index (BMI) between 25 and 40 kg/m^2, inclusive and weighs at least 60 kg

Exclusion Criteria:

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

  • Has a history of previous surgical treatment for obesity that may induce malabsorption, history of bowel resection >20 cm, any malabsorption disorder, severe gastroparesis, or any GI procedure for weight loss
  • Has an individual or family history of medullary thyroid carcinoma or multiple endocrine neoplasia 2

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Panel A Sequence 1
Participants will be administered daily oral doses of MK-4082 formulation 1 (F1) and MK-4082 formulation 2 (F2) in a fixed sequence over the first 4 weeks, with only one formulation administered on any given day. In week 5, participants will be administered daily oral doses of MK-4082 F2 for 7 days followed by daily oral doses of MK-4082 F1 for 7 days.
Drug: MK-4082 Formulation 1 (F1)
Oral Tablet
Drug: MK-4082 Formulation 2 (F2)
Oral Tablet
Experimental: Panel A Sequence 2
Participants will be administered daily oral doses of MK-4082 F1 and MK-4082 F2 in a fixed sequence over the first 4 weeks, with only one formulation administered on any given day. In week 5, participants will be administered daily oral doses of MK-4082 F1 for 7 days followed by daily oral doses of MK-4082 F2 for 7 days.
Drug: MK-4082 Formulation 1 (F1)
Oral Tablet
Drug: MK-4082 Formulation 2 (F2)
Oral Tablet
Experimental: Panel B Sequence 1
Participants will be administered daily oral doses of MK-4082 F1 and MK-4082 formulation 4 (F4) in a fixed sequence over the first 4 weeks, with only one formulation administered on any given day. In week 5, participants will be administered daily oral doses of MK-4082 F4 for 7 days followed by daily oral doses of MK-4082 F1 for 7 days.
Drug: MK-4082 Formulation 1 (F1)
Oral Tablet
Drug: MK-4082 Formulation 4 (F4)
Oral Tablet
Experimental: Panel B Sequence 2
Participants will be administered daily oral doses of MK-4082 F1 and MK-4082 F4 in a fixed sequence over the first 4 weeks, with only one formulation administered on any given day. In week 5, participants will be administered daily oral doses of MK-4082 F1 for 7 days followed by daily oral doses of MK-4082 F4 for 7 days.
Drug: MK-4082 Formulation 1 (F1)
Oral Tablet
Drug: MK-4082 Formulation 4 (F4)
Oral Tablet

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants Who Experience an Adverse Event (AE)
Time Frame: Up to approximately 8 weeks
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants who experience an AE will be reported.
Up to approximately 8 weeks
Number of Participants Who Discontinue Study Treatment Due to an AE
Time Frame: Up to approximately 6 weeks
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants who discontinue study treatment due to an AE will be reported.
Up to approximately 6 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Plasma Concentration at 24 Hours (C24) of MK-4082
Time Frame: At designated timepoints up to 24 hours postdose
Blood samples will be collected to determine the C24 of MK-4082.
At designated timepoints up to 24 hours postdose
Area Under the Curve from Time 0 to 24 hours (AUC0-24) of MK-4082
Time Frame: At designated timepoints (up to 24 hours postdose)
Blood samples will be collected to determine the AUC0-24 of MK-4082.
At designated timepoints (up to 24 hours postdose)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Merck Sharp & Dohme LLC

Investigators

  • Study Director: Medical Director, Merck Sharp & Dohme LLC

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

August 25, 2026

Primary Completion (Estimated)

December 15, 2026

Study Completion (Estimated)

December 15, 2026

Study Registration Dates

First Submitted

July 31, 2026

First Submitted That Met QC Criteria

July 31, 2026

First Posted (Actual)

August 5, 2026

Study Record Updates

Last Update Posted (Actual)

August 28, 2026

Last Update Submitted That Met QC Criteria

August 27, 2026

Last Verified

August 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 4082-007
  • MK-4082-007 (Other Identifier: MSD)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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