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A Phase 2b, Dose-range Finding Study of the Efficacy and Safety of Multiple Doses of Aleniglipron (GSBR-1290) in Participants Living With Obesity or Overweight With at Least One Weight-related Comorbidity

A Phase 2b, Randomized, Double-blind, Placebo-controlled, Dose-range Finding Study of the Efficacy and Safety of Multiple Doses of Aleniglipron (GSBR-1290) in Participants Living With Obesity (Body Mass Index ≥ 30 kg/m2) or Overweight (Body Mass Index ≥ 27 kg/m2) With at Least One Weight-related Comorbidity

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06693843
Acronym
ACCESS
Enrollment
230
Registered
2024-11-18
Start date
2024-10-28
Completion date
2026-07-09
Last updated
2026-08-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obesity, Overweight, or Chronic Weight Management

Keywords

ACCESS, obesity, overweight, GSBR-1290, aleniglipron, chronic weight management, obese, small molecule, GLP-1 receptor agonist, Structure Therapeutics

Brief summary

This study is a randomized, double-blind, placebo-controlled, dose-range finding study of the efficacy, safety, tolerability, PK, and PD of multiple doses of aleniglipron in participants living with overweight or obesity with at least one weight-related comorbidity. Participants will be randomized to aleniglipron or placebo in a ratio of 3:1 within each Cohort receiving multiple-ascending, QD doses of aleniglipron or placebo in titration steps of 4 weeks duration for a total of 36 weeks of treatment. At the end of the study (after completing 36 weeks of treatment), participants will be offered to continue with an open-label extension (OLE) where they will receive aleniglipron for an additional 36 weeks.

Interventions

Drug: Aleniglipron Administered orally Drug: Placebo Administered orally

Drug: Aleniglipron Administered orally

Sponsors

Gasherbrum Bio, Inc., a wholly owned subsidiary of Structure Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 79 Years
Healthy volunteers
No

Inclusion criteria

* Signed informed consent * BMI ≥30 kg/m2 or BMI ≥27.0 kg/m2 and previous/current diagnosis of ≥ 1 obesity related comorbidity

Exclusion criteria

* Previous documented diagnosis of diabetes mellitus. * Self-reported change in body weight \>5% within 3 months before Screening * Body weight ≤80 kg at Screening * Have a prior or planned surgical treatment for obesity (excluding liposuction or abdominoplasty, if performed \>1 year prior to screening)

Design outcomes

Primary

MeasureTime frameDescription
Percent change in body weight from Baseline to Week 36Baseline and week 36Double Blind Period
TEAEs and SAEsBaseline and week 72Open -Label Extension
AESIBaseline and week 72Open -Label Extension
Evaluate the safety and tolerability of participants with abnormal laboratory values, including hematology, serum chemistry, and coagulationBaseline and week 72Open -Label Extension
Evaluate long-term safety and tolerability of aleniglipron as measured through electrocardiograms (including, but not limited to, the measurements of ventricular HR, PR interval, QRS duration, QT interval, and QTcF)Baseline and week 72Open -Label Extension
Evaluate the safety and tolerability of participants with abnormal vital signs, including blood pressure, heart rate, and temperatureBaseline and week 72Open -Label Extension

Secondary

MeasureTime frameDescription
Percentage of participants who achieve ≥5% reduction in body weight at Week 36Baseline and week 36Double Blind Period
Percentage of participants who achieve ≥10% reduction in body weight at Week 36Baseline and week 36Double Blind Period
Percentage of participants who achieve ≥15% reduction in body weight at Week 36Baseline and week 36Double Blind Period
Change in body weight (absolute) from Baseline to Week 36Baseline and week 36Double Blind Period
Change in waist circumference from Baseline to Week 36Baseline and week 36Double Blind Period
Change in body mass index from Baseline to Week 36Baseline and week 36Double Blind Period
Percent change in body weightBaseline to week 72 & Week 36-72Open -Label Extension
Percentage of participants who achieve ≥5% reduction in body weightBaseline to week 72 & Week 36-72Open -Label Extension
Percentage of participants who achieve ≥10% reduction in body weightBaseline to week 72 & Week 36-72Open -Label Extension
Percentage of participants who achieve ≥15% reduction in body weightBaseline to week 72 & Week 36-72Open -Label Extension
Change in body weightBaseline to week 72 & Week 36-72Open -Label Extension
Change in body massBaseline to week 72 & Week 36-72Open -Label Extension
Change in waist circumferenceBaseline to week 72 & Week 36-72Open -Label Extension

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 11, 2026