Study to Evaluate Efficacy and Dose Response of Imapextide (STEADI)

NCT ID: NCT07029412

Last Updated: 2025-12-17

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

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-08-26

Study Completion Date

2026-01-26

Brief Summary

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The purpose of this study is to assess the preliminary efficacy of single SC administration of MBX 1416 at different dose levels in patients with PBH

Detailed Description

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This is a Phase 2a, open-label, exploratory study to evaluate preliminary efficacy of SC MBX 1416 in patients with PBH. Approximately 10 patients aged 18 to 75 (inclusive) years with history of hypoglycemia following Roux-en-Y or sleeve gastrectomy will be included in the study. Participants will undergo 3 mixed-meal tolerance tests, one at baseline and again 48 hours after each MBX 1416 administration, to evaluate the effect of MBX 1416 on increasing post-prandial glucose nadir. MBX 1416 effect in reducing post-prandial insulin and C-peptide peaks will also be evaluated

Conditions

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Postbariatric Hypoglycemia

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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MBX 1416 (INN imapextide)

Single subcutaneous administration at different dose levels

Group Type EXPERIMENTAL

MBX 1416 (INN imapextide)

Intervention Type DRUG

A single subcutaneous injection of MBX 1416 at a low dose and a high dose approximately 2 weeks apart.

Interventions

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MBX 1416 (INN imapextide)

A single subcutaneous injection of MBX 1416 at a low dose and a high dose approximately 2 weeks apart.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Participant must be ≥18 to ≤75 years of age at the time of signing the informed consent.
2. Participants must have undergone RYGB or SG surgery at least 12 months prior to study entry.
3. Participants should have a documented history of PBH, defined as Whipple's triad (symptomatic hypoglycemia, capillary glucose ≤54 mg/dL, with symptom resolution by carbohydrate administration) and a minimum of 1 symptomatic hypoglycemic episode per month by patient report.
4. Participants who are either treatment naïve or who are no longer using (i.e., have discontinued as part of their usual medical care) agents known to interfere with glucose metabolism at the time of screening.
5. Participants must have a body mass index (BMI) \<45 kg/m2 at screening.
6. Must have signed informed consent.

Exclusion Criteria

1. 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.
2. Currently on-going type II diabetes mellitus.
3. History of hypoglycemia prior to bariatric surgery.
4. History of insulinoma or other endogenous hyperinsulinemia illness (e.g., congenital hyperinsulinism).
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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MBX Biosciences

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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MBX Biosciences Investigational Site

Aurora, Colorado, United States

Site Status RECRUITING

MBX Biosciences Investigational Site

Morehead City, North Carolina, United States

Site Status RECRUITING

MBX Biosciences Investigational Site

Knoxville, Tennessee, United States

Site Status RECRUITING

MBX Biosciences Investigational Site

San Antonio, Texas, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Elisa Fabbrini, MD, PhD

Role: CONTACT

844-877-4473

Stewart Hallett

Role: CONTACT

844-877-4473

Other Identifiers

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MBX-1P2002

Identifier Type: -

Identifier Source: org_study_id