Status:

RECRUITING

A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of MBX 4291 in Adult Participants With Obesity

Lead Sponsor:

MBX Biosciences

Conditions:

Obesity

Eligibility:

All Genders

18-65 years

Phase:

PHASE1

Brief Summary

The purpose of this study is to evaluate the safety and tolerability of single and multiple subcutaneous (SC) doses of MBX 4291 in adults with obesity.

Detailed Description

This is a Phase 1, double-blind, placebo-controlled first-in-human study to evaluate the single ascending doses (SAD) and multiple ascending doses (MAD) of MBX 4291 in participants with obesity, who a...

Eligibility Criteria

Inclusion

  • Age of \>18 to ≤65 years at the time of signing the informed consent.
  • Has a BMI of ≥30 to \<40 kg/m2 at screening and baseline.
  • Weight-stable, i.e., no more than ±5% change in body weight for at least 3 months prior to screening and between screening and baseline.

Exclusion

  • History of, or currently active, significant illness or medical disorders that in the opinion of the investigator may preclude participants from participating in the study.
  • History of currently active pancreatitis, type I and type II diabetes.
  • Secondary causes of obesity, including but not limited to hypothalamic, monogenic, syndromic, or endocrine causes.
  • A personal or family history of medullary thyroid carcinoma or multiple endocrine neoplasia syndrome type 2.

Key Trial Info

Start Date :

September 3 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

May 30 2026

Estimated Enrollment :

64 Patients enrolled

Trial Details

Trial ID

NCT07142707

Start Date

September 3 2025

End Date

May 30 2026

Last Update

December 15 2025

Active Locations (1)

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Page 1 of 1 (1 locations)

1

MBX Biosciences Investigational Site

Knoxville, Tennessee, United States, 37920