Can a weekly shot help shed pounds in obesity?
NCT ID NCT07804810
First seen Sep 04, 2026 · Last updated Sep 04, 2026
Summary
This phase 2 trial tests an experimental drug called MWN105, given as a weekly injection, in adults who are overweight or have obesity but do not have diabetes. About 120 participants will receive different doses of MWN105 or a placebo for 24 weeks. The main goal is to see how much body weight changes from the start to week 24. Researchers will also check for changes in weight, metabolic health, bone density, and safety.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- MWN105 injection, an experimental drug given as a weekly shot
- What this could lead to
- If it works, MWN105 could offer a new weekly injection to help people with overweight or obesity lose weight and improve related health issues.
- What could go wrong
- This is an early phase 2 study with only 120 participants, so results may not hold up in larger trials. The drug may cause side effects or fail to show meaningful weight loss.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
-
120 people
The number who actually took part.
- Started
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Sep 2025
- Finished
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Apr 2026
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Male or female participants aged 18 to 65 years (inclusive) at the time of signing the informed consent form (ICF). 2. Body weight ≥ 70 kg (male) or ≥ 60 kg (female), with body mass index (BMI) ≥ 30 kg/m² (obesity), or 27 kg/m² ≤ BMI \< 30 kg/m² (overweight) accompanied by at least one weight-related comorbidity (e.g., hypertension, dyslipidemia, prediabetes, obstructive sleep apnea syndrome, metabolic dysfunction-associated steatotic liver disease, weight-bearing joint pain, cardiovascular disease, or polycystic ovary syndrome). 3. Self-reported or documented diet and exercise control of body weight for 12 weeks or more, with body weight change of less than 5.0% within 12 weeks prior to screening. Exclusion Criteria: 1. Known hypersensitivity to GLP-1 receptor agonists, any component of the investigational product, or history of severe allergic disease or severe drug allergy. 2. Use of medications that may affect glucose metabolism or body weight before screening, including antidiabetic drugs, systemic glucocorticoids, psychotropic drugs associated with weight change, prescription weight-loss drugs within 12 weeks, or over-the-counter weight-loss drugs/appetite suppressants within 4 weeks. 3. Clinically significant laboratory abnormalities at screening or before randomization, including: 1. ALT or AST ≥3 × ULN, or TBIL ≥1.5 × ULN. 2. eGFR \<60 mL/min/1.73 m². 3. Hemoglobin \<110 g/L in males or \<100 g/L in females. 4. Calcitonin ≥35 ng/L. 5. TSH \>6.0 or \<0.4 mIU/L. 6. Fasting triglycerides ≥5.64 mmol/L. 7. Amylase or lipase \>2 × ULN. 4. History or presence of clinically significant diseases or conditions that may affect body weight, safety, or study assessments, including: 1. Secondary or drug-induced overweight/obesity. 2. Type 1 or type 2 diabetes mellitus, or laboratory evidence of diabetes (HbA1c ≥6.5%, fasting plasma glucose ≥7.0 mmol/L, or random/2-hour OGTT plasma glucose ≥11.1 mmol/L). 3. Acute or chronic pancreatitis or pancreatic injury. 4. Gallstones or cholecystitis, except adequately treated cases without residual disease. 5. Medullary thyroid carcinoma, MEN 2A/2B, or relevant family history. 6. Previous bariatric surgery or planned procedures that may significantly affect body weight. 7. Moderate or severe depression, PHQ-9 score ≥15, severe psychiatric disorders, suicidal ideation/behavior, or suicide risk. 8. Malignancy within 5 years, except specified adequately treated localized cancers. 9. Significant cardiovascular or cerebrovascular disease within 6 months before screening/randomization. 10. Osteoporosis defined as T-score ≤-2.5 or Z-score ≤-2.0, as applicable. 11. Uncontrolled hypertension (SBP ≥160 mmHg and/or DBP ≥100 mmHg). 12. Clinically significant thyroid dysfunction. 13. Significant gastric emptying disorders or active gastrointestinal disease. 14. History of organ transplantation or awaiting transplantation. 15. Autoimmune diseases likely to require systemic glucocorticoids. 16. Current participation in an active weight-loss program not yet in the maintenance phase.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Tianjin Medical University General Hospital
Tianjin, Tianjin Municipality, China
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Other studies related to the condition(s) this trial covers.
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