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Efficacy and Safety of HDM1005 Compared to Tirzepatide in Obese Adults Without Diabetes

A Phase 2, Randomized, Open-Label, Controlled Trial to Evaluate the Efficacy and Safety of HDM1005 Compared to Tirzepatide in Obese Adults Without Diabetes

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07521631
Enrollment
372
Registered
2026-04-13
Start date
2026-03-31
Completion date
2027-07-23
Last updated
2026-04-13

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

Conditions

Obesity

Brief summary

This is a 56-week randomized, open-label, controlled study evaluating the efficacy and safety of the HDM1005 compared to tirzepatide in adults with obesity but without diabetes. Eligible participants will be screened and randomized to different dose group of HDM1005 or the tirzepatide group at a ratio of 1:1:1 :1, HDM1005 or tirzepatide will be given once weekly for 52 weeks, following by a safety follow up of 4 weeks. All participants received a lifestyle intervention that involved counselling on diet and physical activity.

Interventions

DRUGHDM1005 dose level 1

Initiate at a once weekly dose of 0.5 mg and followed a dose escalation regimen, with dose increases every 4 weeks aiming at reaching the maintenance dose level 1, the intervention will last for 52 weeks in total.

DRUGHDM1005 dose level 2

Initiate at a once weekly dose of 0.5 mg and followed a dose escalation regimen, with dose increases every 4 weeks aiming at reaching the maintenance dose level 2, the intervention will last for 52 weeks in total.

DRUGHDM1005 dose level 3

Initiate at a once weekly dose of 0.5 mg and followed a dose escalation regimen, with dose increases every 4 weeks aiming at reaching the maintenance dose level 3, the intervention will last for 52 weeks in total.

DRUGTirzepatide

Initiate at a once weekly dose of 2.5 mg and followed a dose escalation regimen, with dose increases every 4 weeks aiming at reaching the maintenance dose, the intervention will last for 52 weeks in total.

Sponsors

Hangzhou Zhongmei Huadong Pharmaceutical Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. The age of signing ICF was from 18 to 65 years old (including both ends), regardless of gender. 2. BMI ≥28.0 but \<40.0 kg/m2 at screening and randomization 3. Participants reported that they had been under diet and exercise control for 3 months or more before screening, and their weight change (the difference between the maximum body weight and the minimum body weight) in the past 3 months was less than 5%. 4. fertile female subjects who have taken and agreed to continue to take effective contraceptive measures from 14 days before signing ICF to 60 days after the last dose, and have no plans to give birth and donate eggs; Male subjects signed ICF until 90 days after the last dose, had no fertility plan and sperm donation plan, and agreed to use highly effective contraception.

Exclusion criteria

1. Previous diagnosis of type 1, type 2, or any other type of diabetes. 2. History or family history of medullary thyroid carcinoma, C cell hyperplasia, or multiple endocrine neoplasia type 3. According to the investigator's judgment, the subjects have endocrine diseases or histories that affect gastric emptying, may significantly affect body weight, or diseases or conditions that affect the absorption of gastrointestinal nutrients, such as Cushing syndrome, hypothyroidism or hyperthyroidism, bariatric surgery or other gastrectomy, irritable bowel syndrome, dyspepsia, and chronic pancreatitis; Or a history of acute pancreatitis or acute gallbladder disease within 3 months before signing ICF. 4. Hypertension that was not stably controlled at screening: systolic blood pressure ≥160 mmHg or diastolic blood pressure ≥100 mmHg (with stable treatment for at least 30 days if antihypertensive medications were used). Have any malignant tumor within 5 years before signing ICF (except basal cell carcinoma which has received curative treatment and is regarded as cured). 5. Those who had severe infection, severe trauma, or large or medium-sized surgery within 3 months before signing ICF, or planned to undergo surgery during the study (except outpatient surgery). 6. Previous or combined presence or suspicion of depression or other psychiatric disorders or screening PHQ-9 score ≥15. 7. Known intolerance or allergy to any component of the study drug or glucagon-like peptide-1 receptor (GLP-1R) agonist, or a previous history of severe drug allergy. 8. Use of any of the following drugs, products, or treatments within 3 months prior to signing the ICF, including but not limited to: A. a drug, product or treatment with weight loss effect b. Medications, products, or treatments that significantly increase body weight 9. Use of hypoglycemic drugs within 3 months before signing ICF. 10. Have participated in any clinical trial within 3 months before signing ICF or within 5 half-lives (whichever is longer) after the last dose of the investigational drug used in the clinical trial (except for those who signed ICF without drug or device intervention). 11. History of addictive drug abuse within 1 year before signing ICF. 12. Estimated glomerular filtration rate (eGFR) according to the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation \<60 mL/min/1.73 m2; 13. Those who donated blood or lost ≥400 mL of total blood within 3 months before signing ICF, or received blood transfusion or used blood products, or planned to donate blood during the study period. 14. Pregnant or lactating women.

Design outcomes

Primary

MeasureTime frameDescription
Primary Outcomeweek 40The percentage change in body weight from baseline to week 40

Secondary

MeasureTime frameDescription
Secondary Outcomeweek 40The proportion of participants reaching a body weight loss of at least 5%, 10% and 15% at week 40
Safety Outcomeweek 52the incidence of adverse events
Immunogenicity Outcomeweek 52ADA and NAb

Countries

China

Contacts

CONTACTLing Tao
cxytaoling@eastchinapharm.com+86 021-64041990
PRINCIPAL_INVESTIGATORXiaoying Li, Medical doctor

Shanghai Zhongshan Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 14, 2026