New obesity shot tested in teens: safe or not?
NCT ID NCT07559136
First seen Jun 27, 2026 · Last updated Jul 31, 2026 · Updated 1 time
Summary
This early-stage trial tests the safety of an investigational injection called HRS9531 in 48 Chinese adolescents aged 12 to 17 who are obese. Participants receive either the drug or a placebo, and researchers monitor side effects, drug levels in the blood, and changes in weight and waist size. The study requires participants to have maintained a stable diet and exercise routine for at least 12 weeks before joining.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 48 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2026
- Expected to finish
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Mar 2027
An estimate. End dates often move.
- 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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12 to 18 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 subjects who are aged ≥12 years and \<18 years at the time of signing the informed consent; 2. At screening, the BMI meets the obesity criteria according to "WS/T586-2018 Screening Criteria for Overweight and Obesity in School-age Children and Adolescents"; 3. Subjects who have maintained a controlled diet and exercise for at least 12 weeks prior to screening, with no more than a 5% decrease in BMI (as reported by the subject, parent, or legal guardian); Exclusion Criteria: 1. Presence of clinically significant lab results at screening visit; 2. Uncontrollable hypertension; 3. Medical history or illness that affects your weight; 4. History of diabetes; 5. Acute infection, acute trauma, or medium to large surgery within 1 month prior to screening; 6. Confirmed or suspected depression, bipolar disorder, suicidal tendencies, schizophrenia, or other serious mental illness; 7. Use of drugs or treatments that may have caused significant weight gain or loss within the 3 months prior to screening; 8. Pre-adolescent participants (Tanner phase I); 9. Patients with blood donation or blood loss ≥400 mL or receiving blood transfusion within 3 months before screening. 10. Surgery is planned during the tria; 11. Mentally incapacitated or speech-impaired subjects are unable to fully understand or participate in the test process; 12. In the investigator's judgment, there are circumstances that affect subject safety or any other conditions that interfere with the evaluation of the test results.
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology
RECRUITINGWuhan, Hubei, 430030, China
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