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Taking people in United KingdomPhase 3

Tests setmelanotide against placebo in people with congenital hypothalamic obesity

Tests setmelanotide injections against placebo in patients aged 4 years and older.

Plain-language title generated from the registry record
Registry title: A Trial of Setmelanotide in Patients With Congenital Hypothalamic Obesity (Sub-study of NCT05774756)

Key facts

Where
Birmingham, Hull, and London, United KingdomSee the 3 sites
Phase
Phase 3

Where in United Kingdom

  • Birmingham Women and Children's Hospital NHS TrustBirmingham, United KingdomTaking people
  • Hull Royal InfirmaryHull, United KingdomTaking people
  • UCL Great Ormond Street Institute of Child HealthLondon, United KingdomTaking people

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Trial details

Who runs it
Rhythm Pharmaceuticals, Inc.
Trial code
NCT06760546
Record updated
12 February 2026
Original description
This is a sub-study of Study RM-493-040 (NCT05774756).Read full original descriptionShow less

A Phase 3, Double Blind, Randomized, Placebo-Controlled Trial to Evaluate the Efficacy and Safety of Setmelanotide in Patients With Acquired Hypothalamic Obesity

This is a sub-study of Study RM-493-040 (NCT05774756).

The goal of this sub-study is to learn how well Setmelanotide works to improve weight reduction, hunger, and quality of life in patients 4 years of age and older with congenital Hypothalamic Obesity (cHO). To determine how well setmelanotide works and how safe it is, patients with cHO will take a daily injection of either setmelanotide or placebo and complete trial assessments for up to 26 weeks on a therapeutic regimen.

Inclusion: Diagnosis of multiple pituitary hormone deficiency (MPHD), or septo-optic dysplasia (SOD), or optic nerve hypoplasia (ONH), or Childhood-onset combined pituitary hormone deficiency (CPHD), or Pituitary Stalk Interruption Syndrome (PSIS) with at least one pituitary deficiency AND a body mass index (BMI) of ≥30 kg/m2 for patients ≥18 years of age, or BMI ≥95th percentile for age and sex for patients 4 to <18 years; Age 4 years and older; Weight gain associated with the hypothalamic injury and a BMI of ≥30 kg/m2 for patients ≥18 years of age or BMI ≥95th percentile for age and sex for patients 4 to <18 years of age; Agree to use a highly effective form of contraception throughout the study and for 90 days after the study.

Exclusion: Weight loss >2% in the previous 3 months for patients aged ≥18 years or >2% reduction in BMI for patients aged 4 to <18 years; Bariatric surgery or procedure within last 2 years; Participation in any clinical trial with an investigational drug/device within 3 months prior to the first trial dose; Previously enrolled in a clinical trial involving setmelanotide or any previous exposure to setmelanotide; If receiving hormone replacement therapy, dose has remained stable for at least 2 months before Screening; Other protocol defined Inclusion/Exclusion criteria may apply; Diagnosis of Prader-Willi syndrome (PWS) or Rapid-onset obesity with hypoventilation, hypothalamic, autonomic dysregulation, neuroendocrine tumor syndrome (ROHHADNET); Diagnosis of severe psychiatric disorders; any suicidal ideation, attempt or behavior; Current, clinically significant pulmonary, cardiac, metabolic, or oncologic disease; History or close family history of skin cancer or melanoma; Significant dermatologic findings relating to melanoma or pre-melanoma skin lesions (excluding non-invasive basal or squamous cell lesion); Inability to comply with once daily (QD) injection regimen; If female, pregnant and/or breastfeeding.

ClinicalTrials.gov NCT06760546