A Phase III Clinical Study to Evaluate the Efficacy and Safety of GZR18 Injection in Adult Type 2 Diabetes Mellitus
Optimum 2
A Multicenter, Randomized, Active-controlled Phase III Clinical Study to Evaluate the Efficacy and Safety of GZR18 Injection in Chinese Subjects With Type 2 Diabetes Mellitus and Poor Blood Glucose Control by Metformin Monotherapy or in Combination With Sodium-dependent Glucose Transporter 2 (SGLT2) Inhibitors or Sulfonylureas
1 other identifier
interventional
1,100
1 country
1
Brief Summary
The main purpose of this study is to investigate the Efficacy and Safety of GZR18 Injection in Chinese Subjects with Type 2 Diabetes Mellitus and Poor Blood Glucose Control by Metformin Monotherapy or in Combination with Sodium-dependent Glucose Transporter 2 (SGLT2) Inhibitors or Sulfonylureas
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Feb 2025
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 3, 2025
CompletedFirst Posted
Study publicly available on registry
January 16, 2025
CompletedStudy Start
First participant enrolled
February 13, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 11, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 11, 2026
November 25, 2025
October 1, 2025
1.8 years
January 3, 2025
November 20, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Change from Baseline in Hemoglobin A1c (HbA1c)(%)
Baseline, Week 44
Secondary Outcomes (6)
Change from baseline in mean 7-point self-measured blood glucose (SMBG)
week 44
Proportion of subjects with salvage therapy.
week 44
Change from baseline in weight (kg)
week 44
Percent change in weight from baseline (%)
week 44
Proportion of subjects with ≥ 5% and 10% decrease in weight from baseline.
week 44
- +1 more secondary outcomes
Study Arms (3)
GZR18 Dose 1
EXPERIMENTALParticipants will receive GZR18 subcutaneously (SC).
GZR18 Dose 2
EXPERIMENTALParticipants will receive GZR18 subcutaneously (SC).
semaglutide
ACTIVE COMPARATORParticipants will receive semaglutide subcutaneously (SC).
Interventions
Eligibility Criteria
You may qualify if:
- T2DM is diagnosed for at least 12 weeks according to the diagnostic criteria of diabetes mellitus issued by the World Health Organization (WHO) in 1999 and the supplementary diagnostic criteria of WHO in 2011 (HbA1c diagnosis is recommended).
- Antidiabetic drugs that meet any of the following within 8 weeks before screening:
- A stable dose of metformin hydrochloride monotherapy at a dose of ≥ 1500 mg/day or the maximum tolerated dose ;
- A stable dose of metformin (≥ 1500 mg/day or the maximum tolerated dose ) in combination with SGLT2 inhibitors;
- A stable dose of metformin (≥1500 mg/day or a maximum tolerated dose \< 1500 but ≥ 1000 mg/day) in combination with a stable daily dose of sulfonylureas.
- HbA1c ≥ 7.5% and ≤ 11% at screening (central laboratory).
- BG \< 15 mmol/L at screening (central laboratory).
You may not qualify if:
- Type 1 diabetes mellitus or special type of diabetes mellitus.
- Diabetic ketoacidosis, diabetic lactic acidosis or hyperosmolar state within 6 months before screening, or diabetic ketosis at screening/before randomization.
- Severe chronic complications of diabetes (such as proliferative retinopathy or maculopathy, diabetic painful neuropathy, intermittent claudication, or diabetic foot) at screening or before randomization.
- History of acute or chronic pancreatitis and pancreatic injury before screening.
- History or relevant family history of medullary thyroid cancer, multiple endocrine neoplasia (MEN) 2A or 2B before screening.
- Any laboratory test indicator meeting the following criteria at screening or before randomization:
- Calcitonin level ≥ 50 ng/L (pg/mL) at screening.
- ALT ≥ 3.0 × upper limit of normal (ULN) or AST ≥ 3.0 × ULN or total bilirubin ≥ 2.0 × ULN.
- Estimated glomerular filtration rate (eGFR) \< 60 mL/min/1.73 m2, calculated using CKD-EPI equation (see Appendix 3).
- Fasting triglyceride (TG) ≥ 5.7 mmol/L or 500 mg/dL.
- Blood amylase or lipase \> 1.5 × ULN.
- Hemoglobin ≤ 100 g/L for women and ≤ 110 g/L for men.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Tianjin Medical University General Hospital
Tianjin, China
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 3, 2025
First Posted
January 16, 2025
Study Start
February 13, 2025
Primary Completion (Estimated)
December 11, 2026
Study Completion (Estimated)
December 11, 2026
Last Updated
November 25, 2025
Record last verified: 2025-10