About this trial

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.

Eligibility criteria

Qualifiers

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

Disqualifiers

Diagnosis of Prader-Willi syndrome (PWS) or Rapid-onset obesity with hypoventilation, hypothalamic, autonomic dysregulation, neuroendocrine tumor syndrome (ROHHADNET)

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

Diagnosis of severe psychiatric disorders; any suicidal ideation, attempt or behavior

Trial design

Treatments tested in this trial

  • Setmelanotide
  • Placebo

Treatment groups

39 Participants
are divided into 2 treatment groups

Locations

11
United Kingdom
UCL Great Ormond Street Institute of Child HealthWC1N 1EH, LondonGreater London, United Kingdom
Birmingham Women and Children's Hospital NHS TrustB46NH, BirminghamWest Midlands, United Kingdom
Hull Royal InfirmaryHU32RW, Hull United Kingdom
United States
Alabama
University of Alabama35233, Birmingham United States

Sponsors and collaborators

Rhythm Pharmaceuticals, Inc.

Lead sponsor