A Phase 3 Study to Evaluate the Efficacy of JY09 Compared With Dulaglutide in Combination Therapy Diabetes Mellitus Type 2 Patients With Metformin

NCT ID: NCT06257966

Last Updated: 2025-09-17

Basic Information

• Recruitment Status: ACTIVE_NOT_RECRUITING
• Clinical Phase: PHASE3
• Total Enrollment: 600 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2024-07-17
• Study Completion Date: 2026-11-30

Brief Summary

The aim of the study is to compare the efficacy and safety of two JY09 doses versus dulaglutide as add-on therapy to metformin in participants with type 2 diabetes mellitus (T2DM)

Detailed Description

This study was designed as a multicenter, randomized, open, parallel, positively controlled Phase III clinical study to evaluate the efficacy and safety of Exendin-4Fc fusion protein (JY09) injection in adult subjects with type 2 diabetes mellitus who have poor glycemic control after metformin treatment only.

The proposed plan is to enroll 600 subjects with T2DM, using stratified block group randomization with the stratification factor being baseline HbA1c (≤8.5% or >8.5%), and randomly assign them to the 1.2 mg JY09 injection group (n=200 subjects), 2.4 mg JY09 injection group (n=200 subjects) and dulaglutide injection group (n=200 subjects) in a 1:1:1 ratio.

The trial was divided into 4 phases, i.e., a screening period of 2 weeks, an introduction period of 4 weeks, a treatment period of 54 weeks (26 weeks for the core treatment period and 28 weeks for the extended treatment period), and a safety follow-up period of 4 weeks. A total of 64 weeks.

Conditions

Type2 Diabetes Mellitus

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Exendin-4 Fc fusion protein injection(1.2mg）+Metformin

1.2mg,Subcutaneous injection in the abdomen,Bi-weekly for 54 weeks.

Group Type: EXPERIMENTAL

Exendin-4 Fc fusion protein injection(1.2mg）

Intervention Type: DRUG

1.2mg, subcutaneous injection in the abdomen, biweekly, 54 weeks of treatment.

Metformin

Intervention Type: DRUG

Metformin hydrochloride tablets, oral administration, 54 weeks of treatment

Exendin-4 Fc fusion protein injection(2.4mg）+Metformin

The first dose of 1.2 mg of JY09 injection was administered, the dose was adjusted to 2.4 mg after two weeks, after which 2.4 mg was maintained to continue subcutaneous injection in the abdomen, bi-weekly treatment for 52 weeks.

Group Type: EXPERIMENTAL

Exendin-4 Fc fusion protein injection（2.4mg）

Intervention Type: DRUG

The first dose of 1.2 mg was administered subcutaneously in the abdomen, and after two weeks, the dose was adjusted to 2.4 mg, followed by a continuation of treatment for 52 weeks.

Metformin

Intervention Type: DRUG

Metformin hydrochloride tablets, oral administration, 54 weeks of treatment

Dulaglutide+Metformin

1.5 mg dulaglutide injection subcutaneously once a week for 26 weeks.

Group Type: ACTIVE_COMPARATOR

Dulaglutide

Intervention Type: DRUG

1.5 mg dulaglutide injection subcutaneously once a week for 54 weeks.

Metformin

Intervention Type: DRUG

Metformin hydrochloride tablets, oral administration, 54 weeks of treatment

Interventions

Exendin-4 Fc fusion protein injection(1.2mg）

1.2mg, subcutaneous injection in the abdomen, biweekly, 54 weeks of treatment.

Intervention Type: DRUG

Exendin-4 Fc fusion protein injection（2.4mg）

The first dose of 1.2 mg was administered subcutaneously in the abdomen, and after two weeks, the dose was adjusted to 2.4 mg, followed by a continuation of treatment for 52 weeks.

Intervention Type: DRUG

Dulaglutide

1.5 mg dulaglutide injection subcutaneously once a week for 54 weeks.

Intervention Type: DRUG

Metformin

Metformin hydrochloride tablets, oral administration, 54 weeks of treatment

Intervention Type: DRUG

Other Intervention Names

JY09(1.2mg); JY09(2.4mg)

Eligibility Criteria

Inclusion Criteria

1. Male or female subjects ≥18 years of age and ≤75 years of age at the time of signing the informed consent form.

2. Those who meet the World Health Organization（WHO）1999 diagnostic criteria for type 2 diabetes mellitus and the WHO Recommendations for the Use of Glycosylated Haemoglobin (HbA1c) for Diagnosis (2011) supplemental diagnostic criteria for a diagnosis of T2DM for ≥ 12 weeks.

3. Received a stable dose of metformin monotherapy with a metformin dose ≥1500 mg/day or a maximally tolerated dose (<1500 mg/day but ≥1000 mg/day) on the basis of dietary and exercise interventions during the 8 weeks prior to screening.

4. HbA1c ≥7.5% and ≤11.0% at screening (local laboratory) and HbA1c ≥7.0% and ≤10.5% before randomization (V3) (central laboratory).

5. FPG 13.9 mmol/L at screening (local laboratory) and FPG 13.9 mmol/L before randomization (V3) (central laboratory).

6. Body mass index (BMI) ≥18.5 kg/m2 and ≤35.0 kg/m2 at screening and before randomization (V4).

7. Able to understand and willing to sign a written informed consent form (ICF) and comply with the study protocol.

Exclusion Criteria

1. People diagnosed with type 1 diabetes or other types of diabetes.

2. Those who have used glucose-lowering drugs other than metformin within 8 weeks prior to screening or prior to randomization (V4), or those who have used drugs that may affect glucose metabolism, such as systemic glucocorticosteroids (except for inhalation or topical topical use) and growth hormone.

3. Those who have used glucose-dependent insulinotropic polypeptide (GIP) and/or glucagon-like peptide-1 (GLP-1) receptor agonists (including single-target, multi-target agonists, and insulin-containing GLP-1 combinations) within 3 months prior to screening.

4. More than 14 days of continuous insulin use in the 6 months prior to screening.

5. Acute complications of diabetes such as diabetic ketoacidosis or hyperglycemic hyperosmolar state within 6 months prior to screening or prior to randomization .

6. Severe chronic complications of diabetes mellitus (e.g., proliferative diabetic retinopathy, severe diabetic neuropathy, diabetic foot, etc.) within 6 months prior to screening, which are assessed by the investigator to be unsuitable for participation in this clinical study.

7. Individuals who have had severe gastrointestinal disease (e.g., active ulcer, gastroparesis, pyloric obstruction, inflammatory bowel disease, etc.) or have undergone gastrointestinal surgery within 6 months prior to screening or prior to randomization or who have been using long-term medications for chronic gastrointestinal disease that have a direct effect on gastrointestinal motility are not suitable for participation in this clinical study, as assessed by the investigator.

8. Other conditions that, in the judgment of the investigator, make the subject unsuitable for participation in this clinical study.

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

Sponsors

Beijing Dongfang Biotech Co., Ltd.

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Junqing Zhang, Doctor

Role: PRINCIPAL_INVESTIGATOR

Peking University First Hospital

Locations

Peking University First Hospital

Beijing, Beijing Municipality, China

Countries

China

Other Identifiers

DFBT-JY09-DM-302

Identifier Type: -

Identifier Source: org_study_id