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Phase 1b/2a Study of GSBR-1290 in Adult Overweight or Obese Healthy Subjects and Subjects With Type 2 Diabetes Mellitus

A Phase 1b/2a, Randomized, Double-blind, Placebo-controlled, Study of the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Multiple Ascending Doses of GSBR-1290 in Adult Overweight or Obese Healthy Subjects and in Subjects With Type 2 Diabetes Mellitus on Metformin

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05762471
Enrollment
142
Registered
2023-03-09
Start date
2023-01-09
Completion date
2024-04-11
Last updated
2024-04-25

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

Conditions

Overweight or Obesity, Type2 Diabetes Mellitus

Brief summary

This study will evaluate safety, tolerability, pharmacokinetic (PK) profile, and pharmacodynamic (PD) effects on GSBR-1290 in healthy overweight/obese volunteers (HOV) and Type 2 Diabetes Mellitus on Metformin (T2DM) This study includes 5 planned cohorts. Participants will receive multiple-ascending doses of GSBR-1290 or Placebo from Day 1 to Day 84

Interventions

Patients will receive GSBR-1290 or matching Placebo

DRUGPlacebo

Patients will receive GSBR-1290 or matching Placebo

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)

Masking description

This is a double-blind study in which the GSBR-1290 and the matching placebo are matching in appearance

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

cohorts 1-4: 1. Provided evidence of a signed consent 2. Age ≥ 18 and ≤ 75 years 3. Healthy overweight/obese adult men and women with body mass index ≥ 27 and ≤ 40 kg/m2 4. No nicotine use 5. Have a suitable venous access for blood sampling Inclusion Criteria cohort 5: 1. Men and women with T2DM of ≥6 months duration 2. Age ≥ 18 and ≤ 75 years 3. BMI ≥ 27 and ≤ 40 kg/m2 4. Treated with stable doses of ≥500 mg of metformin with a duration ≥6 months and at stable doses for ≥2 months with a screening HbA1c ≥7.0% and ≤10.5%.

Exclusion criteria

1. History or presence of significant cardiovascular, pulmonary, hepatic, renal, hematological, gastrointestinal, endocrine, immunologic, dermatologic or neurological disease, including any acute illness or major surgery within the major 3 months 2. A sitting BP after resting for 5 minutes \> 160mm Hg systolic or \> 100 mm Hg diastolic or an apical pulse rate \<50 or \>100 beats per minute. 3. Evidence of abnormality on the screening visit ECG, or a history of known arrhythmia or prolonged QTcF pr prolonged QRS interval 4. Liver function test results elevated \> 2.0-fold above the ULN for gamma glutamyl transferase, alkaline phosphatase, aspartate aminotransferase or alanine aminotransferase. Bilirubin above the ULN 5. Estimated glomerular filtration rate \< 60mL/min/1.73 m2 body surface area 6. Known hypersensitivity to any of the study drug ingredients 7. Any other condition or prior therapy that would make the participant unsuitable for this study

Design outcomes

Primary

MeasureTime frame
Incidence, severity and relationship of AE/SAE, vital signs, laboratory measures and ECG to assess safety and tolerability of multiple oral doses of GSBR-1290 in HOV and T2DM42 days

Secondary

MeasureTime frame
Analysis of Cmax at specified timepoints predose and postdose to calculate PK parameters31 days
Analysis of Tmax at specified timepoints predose and postdose to calculate PK parameters31 days
Analysis of AUC at specified timepoints predose and postdose to calculate PK parameters31 days
Identification of GSBR-1290 metabolites following oral administration of multiple doses in plasma31 days

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026