Aleniglipron Phase 2 in Type 2 Diabetes Mellitus (GSBR-1290)

April 22, 2026 updated by: Gasherbrum Bio, Inc., a wholly owned subsidiary of Structure Therapeutics

A Phase 2, Randomized, Double-blind, Placebo-controlled, Study of the Safety and Tolerability of Aleniglipron in Adult Participants With Type 2 Diabetes Mellitus Living With Obesity or Overweight

The purpose of this study is to assess the safety and tolerability of aleniglipron at doses up to 240 mg once daily (QD) in participants with T2DM who are living with obesity (body mass index [BMI] ≥ 30 kg/m2) or overweight (BMI ≥ 27 kg/m2).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
58

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

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 Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • Alabama
      • Anniston, Alabama, United States, 36207
        • Research Site
    • California
      • Lake Forest, California, United States, 92630
        • Research Site
      • Lomita, California, United States, 90717
        • Research Site
    • Missouri
      • Hazelwood, Missouri, United States, 63042
        • Research Site
    • Ohio
      • Columbus, Ohio, United States, 43212
        • Research Site
    • South Carolina
      • Moncks Corner, South Carolina, United States, 29461
        • Research Site
    • Tennessee
      • Chattanooga, Tennessee, United States, 37421
        • Research Site
      • Knoxville, Tennessee, United States, 37909
        • Research Site
    • Texas
      • Austin, Texas, United States, 78704
        • Research Site
      • DeSoto, Texas, United States, 75115
        • Research Site
      • Houston, Texas, United States, 77079
        • Research Site
      • Mesquite, Texas, United States, 75149
        • Research Site
      • San Antonio, Texas, United States, 78229
        • Research Site
      • San Antonio, Texas, United States, 78215
        • Research Site
      • San Antonio, Texas, United States, 78240
        • Research Site
      • Tomball, Texas, United States, 77375
        • Research Site

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Signed Informed Consent
  • A diagnosis of T2DM of ≥6 months,
  • Hemoglobin A1c (HbA1c) ≥6.5% to ≤10% at Screening
  • Have a BMI ≥27.0 kg/m2

Exclusion Criteria:

  • Are currently receiving or planning to receive treatment for diabetic retinopathy and/or macular edema. All participants must have a photo fundoscopy, optical coherence tomography, or slit lamp assessment prior to randomization and within the last 12 months to confirm the absence or stable status of diabetic retinopathy and/or macular edema.
  • Present or planned use of any drug that could interfere with glucose levels
  • Self-reported change in body weight >5 kg (11 pounds) within 3 months before screening
  • Have prior or planned surgical treatment for obesity (excluding liposuction or abdominoplasty, if performed >1 year prior to Screening)
  • Have or plan to have endoscopic and/or device-based therapy for obesity or have had device removal within the last 6 months prior to Screening, including, but not limited to, mucosal ablation, gastric artery embolization, intragastric balloon, and duodenal-jejunal endoluminal liner

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Arm 1: Participants will receive aleniglipron administered orally
Drug aleniglipron administered orally
Drug: Aleniglipron
Drug aleniglipron administered orally
Experimental: Arm 2: Participants will receive a placebo administered orally
Drug placebo administered orally
Drug: Placebo
Drug placebo administered orally

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Incidence, severity and relationship of AEs/SAEs
Time Frame: Baseline to week 31
Baseline to week 31
Assessment of vital signs
Time Frame: Baseline to week 31
Number of Participants with Clinically Significant Change from Baseline in Vital Signs: including Systolic and Diastolic Blood Pressure, Heart Rate, and temperature.
Baseline to week 31
Assessment of laboratory measures
Time Frame: Baseline to week 31
Number of Participants with Clinically Significant Change from Baseline in Laboratory Parameters: including hematology, serum chemistry, coagulation
Baseline to week 31
Assessment of Electrocardiograms (ECG)
Time Frame: Baseline to week 31
Number of Participants with Clinically Significant Change from Baseline in Electrocardiogram (ECG) Parameters: Common ECG-related variables will be assessed, including but not limited to: ventricular heart rate, PR interval, QRS duration, QT interval, and QTcF
Baseline to week 31

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Absolute change in body weight from Baseline
Time Frame: Baseline to week 31
Baseline to week 31
Percent change in body weight from Baseline
Time Frame: Baseline to week 31
Baseline to week 31
Change in HbA1c from Baseline
Time Frame: Baseline to week 30
Baseline to week 30
Change in fasting plasma glucose from Baseline
Time Frame: Baseline to week 31
Baseline to week 31
PK parameters including but not limited to AUC
Time Frame: Baseline to week 30
Baseline to week 30
PK parameters including but not limited to Cmax
Time Frame: Baseline to week 30
Baseline to week 30
PK parameters including but not limited to Tmax
Time Frame: Baseline to week 30
Baseline to week 30
PK parameters including but not limited to Ctrough
Time Frame: Baseline to week 30
Baseline to week 30

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Gasherbrum Bio, Inc., a wholly owned subsidiary of Structure Therapeutics

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 1, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 28, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 3, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 10, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 27, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 22, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • GSBR-1290-17

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

De-identified individual patient data for variables necessary to address a specific research question in an approved data sharing request

IPD Sharing Time Frame

Data sharing requests will be considered beginning 36 months after the study publication (manuscript accepted for publication) and either 1) the product has been granted marketing authorization in at least two regulatory jurisdictions, or 2) clinical development for the product and/or indication discontinues and the data will not be submitted to regulatory authorities. There is no end date for eligibility to submit a data sharing request for this study.

IPD Sharing Access Criteria

Researchers will submit a request containing the research objectives, endpoints/outcomes of interest, statistical analysis plan, data requirements, publication plan, and qualifications of the researcher(s). Gasherbrum Bio, Inc. does not grant external requests for individual de-identified patient data for the following purposes:

  • Re-evaluating safety and efficacy end points already addressed in the product labelling,
  • Assessing safety or efficacy for an indication in current development Requests are reviewed by a committee of internal advisors, and if not approved, may be further arbitrated by a panel of external advisors. Upon approval, information necessary to address the research question will be provided under the terms of a data sharing agreement.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL

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.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings