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Can a Two-Drug combo tip the scales against obesity?

NCT ID NCT07765511

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Aug 14, 2026 · Last updated Aug 14, 2026

Summary

This early-stage trial is testing whether a new drug called macupatide, given alone or with another drug called eloralintide, is safe and well-tolerated in Japanese adults with obesity or overweight who do not have type 2 diabetes. Participants will receive multiple doses and stay at a research unit for monitoring. The study also looks at how the drugs move through the body and whether they affect body weight.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Macupatide (alone and in combination with eloralintide), given as injections
What this could lead to
If successful, this could support the development of a new combination treatment for obesity, potentially offering better weight loss options.
What could go wrong
This is an early-phase trial focused on safety and dosing, not proof of effectiveness. Side effects are possible, and the results may not lead to a marketable treatment.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

About 60 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Oct 2026

An estimate. Start dates often move.

Expected to finish

Jun 2027

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 65 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Are Japanese participants assigned male at birth (AMAB) or assigned female at birth (AFAB) who agree to contraception requirements or participants who are individuals not of childbearing potential (INOCBP). * Have a body mass index greater than or equal to (≥)25 kilograms per square meter (kg/m²) * Have had a stable weight for the 3 months prior to screening. Stable weight is defined as less than 5 percent (%) body weight change. Exclusion Criteria: * Have known allergies to related compounds of macupatide or eloralintide, or any components of the formulations. * Have a history of significant atopy, including severe allergic manifestations, or clinically significant multiple or severe drug allergies, or severe posttreatment hypersensitivity reactions. * Have a history or presence of psychiatric disorders, including a history of major depressive disorder or severe psychiatric disorders, within the last 3 years, that would present a safety risk or may significantly impair the participant's ability to comply with study procedures. * Have been diagnosed with Type 1 or Type 2 diabetes mellitus. * Have a history of chronic medical conditions involving the heart, liver, or kidneys. * Have a history of any malignancy within the past 5 years except for basal cell or squamous epithelial carcinomas of the skin that have been resected with no evidence of metastatic disease for 3 years. * Have a history or presence of a gastrointestinal (GI) disorder or previous surgery that impacts gastric emptying. * Have had or plan to have during the study, a device-based or surgical treatment use for obesity. * Have been treated, or plan to be treated, with prescription medications or other non approved drugs intended to promote weight loss, within 3 months prior to screening. * Are currently enrolled or have participated, within the last 30 days, in a clinical study involving an investigational product. If the previous investigational product has a long half-life, 5 half-lives or 30 days, whichever is longer, should have passed. * Have previously completed or withdrawn from this study or have previously received macupatide or eloralintide. * Have evidence of acute or chronic liver disease or pancreatic disease.

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder Overweight

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    3 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Medical Corporation Houeikai Sekino Clinical Pharmacology Clinic

    Toshima City, 171-0014, Japan

  • Souseikai Fukuoka Mirai Hospital

    Fukuoka, 813-0017, Japan

  • Sumida Hospital

    Sumida-ku, 130-0004, Japan

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