> Trialight public data. Index of pages: https://trialight.com/llms.txt
> Web page: https://trialight.com/data/trial/a-study-of-gzr18-injection-in-obese-overweight-patients-5fd2c091-2cc2-43f2-8a1d-acf642b19855
> Record changed: 2026-10-13

# A Study of GZR18 Injection in Obese/Overweight Patients

NCT06256562

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

Phase

Phase 2

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

Recruitment status

Completed

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

Participants

340

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

Lead sponsor

Gan and Lee Pharmaceuticals, USA

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

Start date

2023-06-08

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

Number of sites

1

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

## Title and summary

**Summary**

This study is a multicenter, randomized, placebo-controlled phase II clinical study to evaluate the efficacy, safety, tolerability, and pharmacokinetics of GZR18 injection in Chinese adult obese/overweight subjects.

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Short title**

A Study of GZR18 Injection in Obese/Overweight Patients

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Official title**

A Multicenter, Randomized, Controlled Phase II Clinical Study to Evaluate the Efficacy and Safety of GZR18 Injection in Chinese Obese/Overweight Patients

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

## Status and phase

**Control arm**

Placebo

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Registry reports results**

No

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Listing at source**

Listed

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Recruitment status**

Completed

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Phase**

Phase 2

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Study type**

Interventional

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

## Dates

**Completion date**

2024-06-05

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**First posted**

2024-02-13

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Registry last updated**

2025-10-01

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Primary completion date**

2024-06-05

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Start date**

2023-06-08

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

## Size and sites

**Actual participants**

340

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Participants**

340

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Participant count basis**

Actual

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Protocol amendments**

1

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Number of sites**

1

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

## Sponsor and oversight

**Data monitoring committee**

No

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Registry sponsor category**

Industry

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Lead sponsor**

Gan and Lee Pharmaceuticals, USA

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Source registry**

ClinicalTrials.gov

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

## Identifiers

**Registry ID**

NCT06256562

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**ClinicalTrials.gov ID**

NCT06256562

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

**Registry record**

Open registry record

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

## Study design

**Allocation**

Randomised

**Model**

Parallel groups

**Purpose**

Treatment

**Masking**

Double masking

**Masked roles**

Participants, Investigators

Sources for study design

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

## Outcomes

### Primary outcomes

1. Percent (%) change from baseline in body weight at the end of the study (W30)  
Timeframe: 30 weeks

### Secondary outcomes

1. Proportion of subjects who achieved (yes/no) body weight reduction ≥5%, 10%, 15%, 20% from baseline.  
Timeframe: 30 weeks
2. Weight, waist circumference, waist-to-hip ratio (waist circumference/hip circumference), and body mass index (BMI)  
Timeframe: 30 weeks  
Changes from baseline
3. Percentage (%) of weight  
Timeframe: 33 weeks  
Change from baseline at the last safety follow-up visit (W33) after discontinuation
4. Glucose metabolism indicators: glycated hemoglobin A1C (HbA1c), fasting plasma glucose (FPG), fasting insulin, insulin resistance index (HOMA-IR), and islet β cell function (HOMA-β)  
Timeframe: 30 weeks  
Changes from baseline
5. Cardiovascular 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)  
Timeframe: 30 weeks  
Changes from baseline
6. Patient-reported weight-related quality of life scores: IWQoL-Lite-CT and SF-36 scale  
Timeframe: 30 weeks  
Changes from baseline
7. Anti-drug antibodies (ADAs) for GZR18 and neutralizing antibodies (NAbs) following GZR18 Injection  
Timeframe: 33 weeks  
Changes from baseline
8. AUClast, AUC0-inf, Tmax, λz, t1/2, tlag, CL/F, Vz/F, AUC%extra, MRT, Css\_min, Css\_max, Css\_av, DF, Css\_min  
Timeframe: 30 weeks
9. The number of adverse events (AEs)/serious adverse events (SAEs) /AEs of special interest (AESIs) that occurred during the study.  
Timeframe: 33 weeks
10. 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  
Timeframe: 33 weeks  
Change from baseline
11. Subject's mental health status (assessed by using the Columbia-Suicide Severity Rating Scale and Patient Health Questionnaire (PHQ-9))  
Timeframe: 33 weeks

Sources for outcomes

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

## Eligibility

**Sex**

All

**Age groups**

Adults, Older adults

**Minimum age**

18 Years

**Maximum age**

75 Years

**Healthy volunteers**

No

- Inclusion 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.
- Exclusion Criteria:

  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.

Sources for eligibility

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

## Sites

- Gan & Lee Pharmaceuticals Co., LtdBeijing, China

Sources for sites

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

## References

- PubMed 41760612  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/41760612/)
Related publication

Sources for references

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT06256562)

## Related records

### Drugs (1)

- [Bofanglutide](https://trialight.com/data/asset/bofanglutide-35c869ee-ff48-4421-a0b9-f1eac8a5a180.md)

### Lead sponsors (1)

- [Gan and Lee Pharmaceuticals, USA](https://trialight.com/data/company/gan-and-lee-pharmaceuticals-usa-29a75715-56e9-4149-af78-94050b0bf55b.md)

### Conditions (1)

- [Obesity disorder](https://trialight.com/data/condition/obesity-disorder-f3b57dc0-68ac-555c-8f13-0d81e595d9cb.md) Primary condition

---

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