A Study of TG103 Injection in Non-diabetic Overweight or Obesity

NCT ID: NCT05997576

Last Updated: 2025-08-11

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE3
• Total Enrollment: 675 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2023-11-22
• Study Completion Date: 2025-03-03

Brief Summary

This study is a multicenter, randomized, double-blind, placebo-controlled, parallel phase 3 study to evaluate efficacy, safety, pharmacokinetics characteristics and immunogenicity of TG103 injection, a GLP-1 receptor agonist, for weight management in non-diabetic patients with BMI greater than or equal to 28 kg/m2 or greater than 24 kg/m2 in the presence of comorbidities, in addition to lifestyle intervention (calorie restrict diet and increased physical activity).

Conditions

Overweight or Obesity

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: DOUBLE

Study Groups

TG103 22.5 mg

Administered subcutaneously once every week for 52 weeks. Doses gradually increased to 22.5 mg.

Group Type: EXPERIMENTAL

TG103 22.5 mg

Intervention Type: DRUG

Subcutaneous injections with calorie restrict diet and increased physical activity for 52 weeks. Doses gradually increased from 7.5 mg to 22.5 mg.

Placebo

Administered subcutaneously once every week for 52 weeks.

Group Type: PLACEBO_COMPARATOR

Placebo

Intervention Type: DRUG

Subcutaneous injections with calorie restrict diet and increased physical activity for 52 weeks.

Interventions

TG103 22.5 mg

Subcutaneous injections with calorie restrict diet and increased physical activity for 52 weeks. Doses gradually increased from 7.5 mg to 22.5 mg.

Intervention Type: DRUG

Placebo

Subcutaneous injections with calorie restrict diet and increased physical activity for 52 weeks.

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• Male or female, 18 years ≤ age ≤ 75 years.
• Body Mass Index (BMI) ≥ 28 kg/m^2, or 24 kg/m^2 < BMI ≤ 28 kg/m^2 with at least one of obesity-related complications.
• Regular diet and exercise and stable body weight (i.e., self-reported body weight change < 5%) within 12 weeks before screening as well as body weight ≥ 60 kg at screening.
• Weight loss less than 5% or no weight loss after diet and exercise intervention for at least 12 weeks.
• Be able to understand the trial and complete the procedures, and be voluntary to participate in this study and sign the informed consent.

Exclusion Criteria

• History of type 2 diabetes, type 1 diabetes or hypoglycemia.
• Overweight or obesity due to disease or drug; or weight increase due to non-fat mass increase; or monogenic obesity.
• Medications or products which are judged by investigators to cause change in weight and influence trial evaluations have been used within 12 weeks before screening or will be used during study.
• Weight loss less than 5% by monotherapy or combination with GLP-1 receptor agonists for at least 12 weeks before screening.
• Bariatric surgery within 12 months before screening; or no full recovery from any surgery or injury at screening; or gastrointestinal motility dysfunction due to gastrointestinal surgery.
• Participation in any clinical trial to receive treatment within 12 weeks before screening, or participation in clinical trial to receive TG103 before screening.
• History of allergy or suspected allergy to GLP-1 receptor agonists or antibody agents, or suspected allergy to TG103 judged by investigator due to other severe allergy history.
• Personal history or family history of medullary thyroid carcinoma or multiple endocrine neoplasia syndrome type 2 (MEN-2).
• History or screening ultrasound reports of chronic pancreatitis, acute pancreatitis, etc.
• History of severe gastrointestinal disease; or gastrointestinal symptom at screening; or discontinuation of GLP-1 receptor agonist, GLP-1/GIP receptor agonist, GLP-1/GCG receptor agonist or metformin due to gastrointestinal adverse reaction.
• Severe infection at screening.
• Skin disorder that influences safety evaluation at screening.
• History of severe disease or malignant tumor.
• Systolic blood pressure ≥ 160 mmHg, diastolic blood pressure ≥ 100 mmHg, NYHA Grade Ⅲ-Ⅳ, QTc interval prolongation or severe arrhythmia at screening.
• History of abnormal thyroid function with requirement of medication treatment at screening, or screening TSH beyond the normal reference range.
• One of the followings at screening: 1) HbA1c ≥ 6.5%, or screening FPG ≥ 7.0mmol/L or<2.8mmol/L; 2) calcitonin ≥ 50 ng/L; 3) ALT or AST>3 × UNL (upper normal limit), or total bilirubin>1.5 × UNL; 4) blood amylase or lipase>1.5 × UNL, 5) TG>5.6mmol/L, 6) eGFR<60ml/min/1.73m2 , 7) positive of HBsAg, HCV-antibody, HIV-antibody or anti-TP antibody, 8) WBC< 3×10^9/L, or Hb <100g/L, 9) INR>1.2.
• History of drug abuse, drug dependence or alcoholism.
• History of moderate to severe depression, or screening Patient Health Questionaire-9 (PHQ-9) score ≥ 15.
• The fertile female who is pregnant, breast-feeding or with blood HCG positive at screening; or the fertile participants and their partner cannot use an effective contraceptive method during the trial and within 3 months after the end of treatment.
• Other situations unsuitable for this study in the investigator's opinion.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 75 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

CSPC Baike (Shandong) Biopharmaceutical Co., Ltd.

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Li Yan

Role: PRINCIPAL_INVESTIGATOR

Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University

Locations

Clinical Trials Information Group

Shijiazhuang, Hebei, China

Countries

China

Other Identifiers

SYSA1803-013

Identifier Type: -

Identifier Source: org_study_id