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Phase Ib Clinical Study of MWN109 Injection in Participants With Overweight or Obesity

A Randomized, Double-Blind, Placebo-Controlled Phase 1b Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Preliminary Efficacy of Multiple Subcutaneous Administrations of MWN109 Injection in Chinese Non-Diabetic Participants With Overweight or Obesity

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07787728
Enrollment
40
Registered
2026-08-26
Start date
2025-07-14
Completion date
2025-12-16
Last updated
2026-08-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Overweight , Obesity

Brief summary

This study is a randomized, double-blind, placebo-controlled, multiple-dose phase Ib clinical trial, aiming to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics and immunogenicity characteristics of MWN109 injection in Chinese non-diabetic participants with overweight or obesity. A total of 40 participants were enrolled in the study. All participants were stratified and randomized by gender in blocks, and randomly assigned to 4 dose groups at a ratio of 1:1:1:1, with 10 participants in each group(8 participants received MWN109 injection, and 2 received placebo). Each treatment group will use a dose titration method to reach the target dose. The study includes a maximum screening period of up to 2 weeks, a 14-week treatment period and a 2-week follow-up period, totaling 18 weeks. The primary endpoint is the incidence of adverse events. The secondary endpoint is the pharmacokinetic characteristics.

Interventions

Administered SC, QW, 14 weeks

Administered SC, QW, 14 weeks

Administered SC, QW, 14 weeks

Administered SC, QW, 14 weeks

DRUGPlacebo

Administered SC, QW, 14 weeks

Sponsors

Shanghai Minwei Biotechnology Co., Ltd
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

1. Male or female individuals aged between 18 and 65 years old (inclusive of 18 and 65 years old), as determined by the date of signing the informed consent form. 2. Weight ≥ 70 kg (for males) or ≥ 60 kg (for females), with a BMI ranging from 27.0 to 35.0 kg/m2. 3. Resting heart rate ≥ 55 beats per minute and ≤ 90 beats per minute (results of 12-lead electrocardiogram before randomization). 4. Self-reported or documented weight change before the screening period of 12 weeks was less than 5.0%, and the participant can maintain their original diet and lifestyle during the trial period. 5. Participants must have no pregnancy plans from the time of signing the informed consent form until 4 months after the last dose of the investigational drug.

Exclusion criteria

1. Individuals with a known allergy to GLP - 1 receptor agonist drugs or the excipient components of MWN109 injection, or those with severe allergic diseases or a severe allergic constitution at the time of screening. 2. Used GLP-1 receptor agonists or similar drugs targeting the same site, drugs that affect body weight, or weight-loss drugs within 12 weeks before screening. 3. Laboratory abnormalities: HbA1c ≥ 6.5%, or fasting blood glucose ≥ 7.0 mmol/L, or 2-hour blood glucose in the OGTT≥ 11.1 mmol/L (participants with fasting blood glucose between 6.1 and 6.9 mmol/L at the time of screening need to undergo the OGTT), ALT or AST ≥ 2.5ULN, or total serum bilirubin ≥ 1.5ULN. Serum amylase or serum lipase ≥ 1.5ULN. eGFR\< 60 mL/min/1.73 m². Serum calcitonin level ≥ 35 ng/L (pg/mL). TSH\> 6.0 mIU/L or \< 0.4 mIU/L. Triglycerides ≥ 5.64 mmol/L (500 mg/dL). HGB\< 110 g/L (for males) or \< 100 g/L (for females). 4. ECG shows second- or third-degree atrioventricular block, long QT syndrome (QTcF \> 470 ms for females or \> 450 ms for males), pre-excitation syndrome, or other ECG abnormalities that the investigator deems require drug intervention. 5. Participants with a history or evidence of any of the following diseases: * Obesity secondary to other diseases or drug use. * Previously or currently diagnosed with type 1 or type 2 diabetes at the time of screening. * Previously or currently diagnosed with acute or chronic pancreatitis, or pancreatic injury at the time of screening;. * Previous diagnosis of medullary thyroid carcinoma (MTC), multiple endocrine neoplasia type 2A or 2B, or with a relevant family history. * Previously undergone gastric weight-loss surgery, or planning to undergo weight-loss surgery, liposuction, or abdominal fat-reduction surgery during the study, which can significantly affect body weight. * A history of past or current depression, other severe mental illnesses, or a history of suicidal tendencies or behaviors. * Diagnosed with a malignant tumor within 5 years before screening (except for cured carcinoma in situ), or with a potential malignant tumor as evaluated at the time of screening. * A history of any of the following heart diseases within 6 months before screening. * Suffered from hemorrhagic or ischemic stroke within 6 months before screening and deemed ineligible to participate in this clinical trial by the investigator. * Experienced severe hypoglycemia or recurrent (≥ 2 times within 6 months) symptomatic hypoglycemia within 6 months before screening. * Participants with uncontrolled hypertension (systolic blood pressure ≥ 160 mmHg and/or diastolic blood pressure ≥ 100 mmHg at the time of screening) after treatment, or those with untreated blood pressure reaching the above-mentioned criteria at the time of screening. * Abnormal thyroid function that cannot be controlled with a stable drug dosage at the time of screening, or abnormal thyroid function test results with clinical significance that require initiation of treatment at the time of screening. * Abdominal ultrasound at the time of screening indicates symptomatic gallbladder polyps or other gallbladder diseases that require treatment, or gallbladder diseases with symptoms that the investigator deems require treatment. * Clinically significant gastric emptying abnormalities, gastric reflux disease, active gastrointestinal diseases, etc., present at the time of screening.

Design outcomes

Primary

MeasureTime frameDescription
Incidence of adverse events (AEs) and serious adverse events (SAEs)From Day 1 to Day 113Safety and tolerability assessed by the incidence of AEs and SAEs.

Secondary

MeasureTime frameDescription
Maximum Concentration (Cmax)From Day 1 to Day 60Cmax of MWN109.
Time to Reach Maximum Concentration (Tmax)From Day 1 to Day 60Tmax of MWN109.
Area Under the Curve From Time 0 to Last Quantifiable Time Point (AUC0-t)From Day 1 to Day 60AUC0-t of MWN109.
Area Under the Curve From Time 0 to Infinity (AUC0-inf)From Day 1 to Day 60AUC0-inf of MWN109.
Elimination Half-Life (t1/2)From Day 1 to Day 60t1/2 of MWN109.
Steady State Maximum Concentration (Cmax,ss)From Day 1 to Day 113Cmax,ss of MWN109.
Steady State Minimum Concentration (Cmin,ss)From Day 1 to Day 113Cmin,ss of MWN109.
Steady State Concentration (Cav,ss)From Day 1 to Day 113Cav,ss of MWN109.
Time to Reach Maximum Concentration at Steady State (Tmax,ss)From Day 1 to Day 113Tmax,ss of MWN109.
Steady State Apparent Terminal Elimination Half-life (t1/2,ss)From Day 1 to Day 113t1/2,ss of MWN109.
Area Under Concentration-time Profiles during a Dose Interval (AUC0-τ,ss)From Day 1 to Day 113AUC0-τ,ss of MWN109.
Steady State Area Under the Curve From Time 0 to Last Quantifiable Time Point (AUC0-t,ss)From Day 1 to Day 113AUC0-t,ss of MWN109.

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 29, 2026