A Phase 3 Study to Evaluate the Efficacy of JY09 Compared With Placebo in T2DM Patients

Beijing Dongfang Biotech

Status and phase: Active, not recruiting; Phase 3

Conditions: Type 2 Diabetes Mellitus

Treatments: Drug: Placebo; Drug: Exendin-4 Fc fusion protein injection

Study type: Interventional

Funder types: Industry

Identifiers

NCT06254014

DFBT-JY09-DM-301

Details and patient eligibility

About

The main purpose of this study is to investigate the efficacy and safety of JY09 versus placebo in patients with type 2 diabetes mellitus (T2DM) inadequately controlled by diet and exercise alone

Full description

This study was designed as a multicenter, randomized, double-blind, placebo-parallel 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 (T2DM) who have poor glycemic control after dietary exercise intervention only.

The proposed plan is to enroll 270 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=90 subjects), the 2.4 mg JY09 injection group (n=90 subjects), and the placebo group (n=90 subjects) in a 1:1:1 ratio.

The trial was divided into 4 phases, i.e., a screening period of 2 weeks, a single-blind 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. Total 64 weeks.

Enrollment: 270 patients

Sex: All

Ages: 18 to 75 years old

Volunteers: No Healthy Volunteers

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. Those who received dietary and exercise interventions for ≥8 weeks prior to screening and who had not received any antidiabetic medications in 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 (V3).
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 other hypoglycemic agents within 8 weeks prior to screening or prior to randomization (V4), or those who have used medications that may affect glucose metabolism, such as systemic glucocorticoids (except for inhalation or topical topical use), growth hormones, etc.
3. Acute complications of diabetes, such as diabetic ketoacidosis or hyperglycemic hyperosmolar state, within 6 months prior to screening or prior to randomization.
4. 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.
5. Persons who have had a severe trauma or serious infection within 1 month prior to screening or prior to randomization (V4) that may affect glycemic control, and persons who currently have a complicated or refractory urinary or genital tract infection.
6. Suffering from any condition at screening or prior to randomization (V4) that may cause hemolysis or red blood cell instability that would interfere with the measurement of HbA1c levels, such as hemolytic anemia.
7. Subjects who have abnormal thyroid function tests at Screening and require medication, or subjects who are being treated with thyroid-related medications whose thyroid function is still not well controlled at Screening.
8. Those with any of the following abnormalities on serologic testing at screening:

1）Positive human immunodeficiency virus antibodies or syphilis spirochete-specific antibodies; 2）Hepatitis C antibody positive; 3）Hepatitis B virus surface antigen (HBsAg) positive and hepatitis B viral load (HBV-DNA) above the lower limit of laboratory testing (HBV-DNA is added only if HBsAg is positive); 9. The subject has other conditions that, in the judgment of the investigator, make participation in this clinical study inappropriate.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Quadruple Blind

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270 participants in 3 patient groups, including a placebo group

Exendin-4 Fc fusion protein injection(1.2mg）

Experimental group

Description:

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

Treatment:

Drug: Exendin-4 Fc fusion protein injection

Drug: Exendin-4 Fc fusion protein injection

Exendin-4 Fc fusion protein injection(2.4mg）

Experimental group

Description:

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.

Treatment:

Drug: Exendin-4 Fc fusion protein injection

Drug: Exendin-4 Fc fusion protein injection

placebo(0.6ml）

Placebo Comparator group

Description:

JY09 placebo injection 0.6 ml, biweekly abdominal subcutaneous injection for 26 weeks, followed by randomization in a 1:1 ratio into JY09 (1.2 mg) and JY09 (2.4 mg) for 28 weeks, biweekly subcutaneous injections.

Treatment:

Drug: Placebo