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Trial · Observational

RecruitingPhase not statedRegistry data

Efficacy of Semaglutide s.c. Once-weekly on Weight Loss and Management in Adolescents With Monogenic Obesity in Clinical Practice

Overview

Status
Recruiting
Phase
Phase not stated
Enrollment
70 participants (estimated)
Sponsor
Prof. Dr. Martin Wabitsch · Other
Design
Not stated
Countries
5 countries

France, Germany, Netherlands, Spain, United Kingdom

Start
1 Dec 2025
Primary completion
Jun 2028 (estimated)
Completion
Dec 2028 (estimated)
First posted
24 Dec 2025
Last update posted
8 Jan 2026
Conditions
Monogenic Obesity

Timeline

1 trial · 1 ongoing

  • Completed
  • Ongoing
  • Not yet recruiting
  • Stopped
  • Estimated dates (est.)
  • Results posted
20252026202720282029
  1. Ph –

    Efficacy of Semaglutide s.c. Once-weekly on Weight Loss and Management in Adolescents With Monogenic Obesity in Clinical Practice

    NCT07302802

    1 Dec 2025 to est. Dec 2028

Registry summary

Text and fields below are the sponsor's entries at ClinicalTrials.gov, shown as posted.

This observational study aims to assess the effect of once-weekly s.c. semaglutide 2.4 mg as an adjunct to a calorie-reduced diet and increased physical activity on weight loss, change in hunger, body composition, depression, and quality of life after 68 weeks of treatment in adolescents diagnosed with monogenic obesity in routine clinical care.

Interventions

  • Semaglutide (administered by PDS290 pen-injector)Drug

Arms6

  • Other

    Patients with biallelic variants in the LEPR, PCSK1, POMC, and MC4R gene

  • Other

    Patients with monoallelic variants in the LEPR gene

  • Other

    Patients with monoallelic variants in the PCSK1 gene

  • Other

    Patients with monoallelic variants in the POMC gene

  • Other

    Patients with monoallelic variants in the MC4R gene

  • Other

    Patients with monoallelic variants in the SH2B1 gene or with 16p11.2 deletions

Primary outcomes1

Outcomes the sponsor listed as primary.

  1. Proportion of participants achieving ≥10% BMI reduction from baseline (week 0) to week 68.

    Time frame · 68 weeks

    Registry description

    The study evaluates the effect of once-weekly subcutaneous (s.c.) semaglutide 2.4 mg administered as an adjunct to a calorie-reduced diet and increased physical activity in adolescents diagnosed with monogenic obesity. This measure focuses on weight loss effectiveness, with the goal of assessing the impact of the treatment on BMI reduction in a real-world clinical setting after 68 weeks of treatment. The study aims to provide insight into the potential of semaglutide in managing weight in this specific patient population.

Secondary outcomes(1)
  1. Secondary Endpoints for Weight and Health Parameters

    Time frame · 68 weeks

    Registry description

    The secondary endpoints of this study focus on changes in health outcomes over 68 weeks. These include body weight and BMI, measured as percentages or in kg and kg/m², with specific thresholds (e.g., 95th percentile) for age- and sex-specific BMI. Blood pressure (systolic and diastolic) is recorded in mmHg. Cholesterol levels (total, HDL, LDL, triglycerides) are assessed in mg/dL to evaluate cardiovascular risk. HbA1c (percentage), fasting glucose (mg/dL), and insulin (pmol/L) are monitored for metabolic health. ALT (IU/L) measures liver function. Changes in fat and lean mass are evaluated by DXA (kg). Weight and BMI velocity are measured in percentage points. The proportion of participants achieving ≥5% and ≥15% BMI reduction is also reported, offering insight into the treatment's effectiveness on weight and metabolic health.

Posted results

Values are shown as posted at ClinicalTrials.gov, with their units. PepBank has not converted, pooled or compared them.

No results are posted for this trial.

A trial that is still running, or that stopped early, may post results later.

Registry data comes from ClinicalTrials.gov. Study results come from studies, not from the registry. How PepBank works

Studies2

Studies that cite this trial.

Studies with results

1 study on this page

Indexing hint: Case report · 2020

5 results

GLP-1 Receptor Agonist Treatment in Morbid Obesity and Type 2 Diabetes Due to Pathogenic Homozygous Melanocortin-4 Receptor Mutation: A Case Report.

Iepsen et al. 2020Cell reports. Medicinecited by 28

PMID 33205056PMC7659505DOI 10.1016/j.xcrm.2020.100006PUB-33205056

Free to read · publisher termsCC BY-NC-ND5 results

More studies

1 study on this page

PubMed tag: none · 2021

Effects of glucagon-like peptide-1 analogue treatment in genetic obesity: A case series.

Welling et al. 2021Clinical obesitycited by 20

PMID 34291582PMC9286843DOI 10.1111/cob.12481PUB-34291582

Free to read · publisher termsCC BY-NC-ND
Read at source

Eligibility

Who could join, as posted.

Sex
All
Age
from 12 Years up to 21 Years
Healthy volunteers
Not accepted
Inclusion and exclusion criteria, as posted
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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