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A Study of GZR18 Injection in Obese/Overweight Patients
A Multicenter, Randomized, Controlled Phase II Clinical Study to Evaluate the Efficacy and Safety of GZR18 Injection in Chinese Obese/Overweight Patients
Lead sponsor
Asset
GZR18
Subcutaneous · GLP-1 agonist
Listed sites
1
Recruiting sites
—
Enrollment
340
actual
Study population
Obesity / overweight
Key I/E criterion
•BMI ≥28
Primary endpoint
•Percent (%) change from baseline in body weight at the end of the study (W30)
Footprint
Where this trial recruits
Site locations as reported to ClinicalTrials.gov. Site count is not enrollment count; per-site enrollment is not available from source.
Identifiers
Registered as
Timeline
Milestones
Assets
Investigational agents
Study populations
Who this study enrolls
Eligibility
Who can enroll
Eligibility criteria
1. Male or female aged 18-75 years (inclusive).
2. Obese subjects (BMI≥28 kg/m2), Or overweight subjects (24 kg/m2≤BMI<28 kg/m2) with at least one comorbidity.
3. Able to understand the procedures and methods in this study; willing and able to maintain a stable diet and exercise lifestyle during the research period, and willing to sign the ICF voluntarily.
1. Limb deformities or defects affecting height and body weight measurement.
2. Pregnant or lactating women, men or women of reproductive potential unwilling to use contraception throughout the study and for 6 months after the last dose of investigational drug.
3. History of drug abuse within 1 year before screening, or positive results in drug abuse screening during screening or before randomization.
4. Alcohol abuse history within 6 months prior to screening.
5. Subjects who are known or suspected to be allergic to GLP-1 drugs or excipients.
6. Subjects with an absolute weight change greater than 5.0% due to any reason within the 3 months prior to screening.
Endpoints (12)
What's being measured
Protocol endpoints and posted registry outcome measures, grouped into outcome categories. Composite endpoints show their component event types. Standard codes (LOINC, SNOMED CT) are shown where available.
Coverage by outcome category
Weight & body composition
5 endpointsPercent (%) change from baseline in body weight at the end of the study (W30)
Time frame:30 weeks
change from baseline, improvement
Proportion of subjects who achieved (yes/no) body weight reduction ≥5%, 10%, 15%, 20% from baseline.
Time frame:30 weeks
threshold achievement, improvement
Weight, waist circumference, waist-to-hip ratio (waist circumference/hip circumference), and body mass index (BMI)
Time frame:30 weeks
ratio, improvement
Percentage (%) of weight
Time frame:33 weeks
descriptive
Patient-reported weight-related quality of life scores: IWQoL-Lite-CT and SF-36 scale
Time frame:30 weeks
descriptive
Glycemic / diabetes
1 endpointGlucose metabolism indicators: glycated hemoglobin A1C (HbA1c), fasting plasma glucose (FPG), fasting insulin, insulin resistance index (HOMA-IR), and islet β cell function (HOMA-β)
Time frame:30 weeks
concentration, descriptive
Cardiometabolic biomarkers
1 endpointCardiovascular disease risk factors: blood pressure (SBP and DBP), pulse, total cholesterol (TC), low density lipoprotein cholesterol (LDL-C), high density lipoprotein cholesterol (HDL-C), and triglycerides (TG)
Time frame:30 weeks
descriptive
Patient-reported / QoL
1 endpointSubject's mental health status (assessed by using the Columbia-Suicide Severity Rating Scale and Patient Health Questionnaire (PHQ-9))
Time frame:33 weeks
categorical status, descriptive
Safety / tolerability / PK
4 endpointsAnti-drug antibodies (ADAs) for GZR18 and neutralizing antibodies (NAbs) following GZR18 Injection
Time frame:33 weeks
descriptive
AUClast, AUC0-inf, Tmax, λz, t1/2, tlag, CL/F, Vz/F, AUC%extra, MRT, Css_min, Css_max, Css_av, DF, Css_min
Time frame:30 weeks
concentration, descriptive
The number of adverse events (AEs)/serious adverse events (SAEs) /AEs of special interest (AESIs) that occurred during the study.
Time frame:33 weeks
event count, event
Vital signs, physical examination, 12-lead Electrocardiogram (ECG), and clinical laboratory tests (hematology, urinalysis, blood biochemistry, blood amylase, blood lipase, coagulation function, calcitonin,TSH/FT3/FT4
Time frame:33 weeks
descriptive
Publications (1)
Bibliography
Records linked to this trial through ClinicalTrials.gov references, PubMed NCT search, and curated study seeds. 'Canonical' marks design/result papers; others are registry references or candidates.
Registry references + supporting bibliography
- Signal transduction and targeted therapy2026 Feb 27PMID41760612doi:10.1038/s41392-026-02586-8via clinicaltrials gov reference derived + pubmed nct search
Provenance
Sources
Trial facts come from public ClinicalTrials.gov records. Endpoint categories are Delfa's classification of those records, not a ClinicalTrials.gov field. All figures reflect the July 1, 2026 snapshot.