New hope for teens with rare obesity: weekly shot shows promise
NCT ID NCT07302802
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether a once-weekly injection of semaglutide (2.4 mg) can help teenagers with monogenic obesity lose weight and feel better. About 70 teens aged 12 to 20 will take the drug along with diet and exercise changes for 68 weeks. The main goal is to see if at least 10% of their body mass index (BMI) drops, and to track changes in hunger, body composition, mood, and quality of life.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 70 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2025
- Expected to finish
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Dec 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients aged ≥12 to \<21 years diagnosed with monogenic obesity, who agreed on treatment with semaglutide, are eligible for study participation.
- Ages
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12 to 21 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. Treatment with semaglutide as prescribed in routine clinical practice according to summary of product characteristics. 2. Informed consent of the patient, their parents, or legally acceptable representative (LAR) of participant and adolescent assent, as age-appropriate. 3. Age at time of signing informed consent: ≥12 to \<21 years. 4. BMI ≥95th percentile as defined on sex- and age-specific BMI growth charts (CDC.gov) 5. Body weight of \>60 kg. 6. Diagnosis of monogenic obesity by a Clinical Laboratory Improvement Amendments (CLIA)/ College of American Pathologists (CAP)/International Organisation for Standardization (ISO) 1518-certified laboratory using ACMG criteria as pathogenic (P), likely pathogenic (LP) and variant of uncertain significance (VUS). Exclusion Criteria: 1. Participation in any interventional clinical trials at the time of enrolment. 2. Females of childbearing potential who are not using adequate contraceptive methods (as required by local law or practice) 3. Hypersensitivity to the active substance or to any of the excipients listed: * Disodium phosphate, dihydrate * Propylene glycol * Phenol * Hydrochloric acid (for pH adjustment) * Sodium hydroxide (for pH adjustment) * Water for injection 4. The safety and efficacy of Wegovy have not been investigated in patients: * treated with other products for weight management, * with type 1 diabetes, * with severe renal impairment (see section 4.2), * with severe hepatic impairment (see section 4.2), * with congestive heart failure New York Heart Association (NYHA) class IV. Use in these patients is not recommended
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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
7 sites in 5 countries. 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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Assistance Publique-Hôpitaux de Paris (AP-HP), Trousseau Hospital Paris, Pediatric Nutrition Department
NOT_YET_RECRUITINGParis, France
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Departments of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Universidad Autónoma de Madrid
NOT_YET_RECRUITINGMadrid, 28009, Spain
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Division of Paediatric Endocrinology and Diabetes, Department of Paediatrics and Adolescent Medicine, Ulm University Medical Centre
RECRUITINGUlm, 89075, Germany
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Institute for Experimental Pediatric Endocrinology, Charité Universitätsmedizin Berlin
NOT_YET_RECRUITINGBerlin, 13353, Germany
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University Hospital for Children and Adolescents, Center for Pediatric Research, Medical Faculty, University of Leipzig
NOT_YET_RECRUITINGLeipzig, 04103, Germany
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University Medical Center Rotterdam, Erasmus MC-Sophia Children's Hospital
NOT_YET_RECRUITINGRotterdam, 3015 GD, Netherlands
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Wellcome-MRC Institute of Metabolic Science and NIHR Cambridge Biomedical Research Centre
NOT_YET_RECRUITINGCambridge, CB2 0QQ, United Kingdom
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