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Open-Label Study of Setmelanotide in Hypothalamic Obesity

A Phase 2, Open-Label 20-Week Study to Evaluate the Safety and Efficacy of Setmelanotide in Subjects With Hypothalamic Obesity

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04725240
Enrollment
18
Registered
2021-01-26
Start date
2021-06-07
Completion date
2022-06-28
Last updated
2025-02-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hypothalamic Obesity

Brief summary

Open-label, single-arm study designed to evaluate the body weight response to setmelanotide administered subcutaneously (SC) daily in participants with hypothalamic obesity (HO).

Interventions

DRUGSetmelanotide

Setmelanotide for SC injection

Sponsors

Rhythm Pharmaceuticals, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
6 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

Participants must meet all of the following criteria to be eligible for study participation: * Participant has documented evidence of HO, including: * Recent evidence of hypothalamic injury on magnetic resonance imaging (MRI); AND * Diagnosis of craniopharyngioma or other non-malignant brain tumor affecting the hypothalamic region; AND * Has undergone surgery, or chemotherapy, or radiation ≥6 months and ≤15 years before Screening. * Participant has either unilateral hypothalamic lesions or bilateral hypothalamic lesions, as assessed by MRI. * Obesity, documented by a body mass index (BMI) ≥35 kilograms/square meter (kg/m\^2) for participants ≥18 years of age or BMI ≥95th percentile for age and gender for participants 6 to \<18 years of age. * Documented increase in BMI (change from pre-surgery baseline in BMI z-score ≥0.2 for participants \<18 years of age or BMI \>5% for participants \>18 years of age) either during the first 6 months following surgery or within 1 year before surgery AND still present at Screening. * More than 6 months after the end of post-tumor treatment, including chemotherapy, surgery, or radiation. * Highly effective contraception throughout the study and for 90 days following the study. * Ability to communicate well with the Investigator, understand and comply with the requirements of the study, and understand and sign the written informed consent, or, for participants aged \<18 years, a parent/legal guardian that can sign. * If receiving hormone replacement therapy, the dose of such therapy has remained stable for at least 2 months prior to Screening.

Exclusion criteria

Participants meeting any of the following criteria are not eligible for study participation: * Weight gain \>5% in the previous 3 months. * Weight loss ≥2% in the previous 3 months. * Bariatric surgery or procedure within the last 6 months. * Diagnosis of severe psychiatric disorders * Glycated hemoglobin (HbA1c) \>10.0% at Screening. * Current, clinically significant pulmonary, cardiac, or oncologic disease considered severe enough to interfere with the study and/or confound the results. * Glomerular filtration rate (GFR) \<30mL/min/1.73m\^2 during Screening. * Significant dermatologic findings relating to melanoma or pre-melanoma skin lesions. * History or close family history (parents or siblings) of skin cancer or melanoma * Participation in any clinical study with an investigational drug/device within 3 months or 5 half-lives, whichever is longer, prior to the first setmelanotide dose. * Previously enrolled in a clinical study involving setmelanotide or any previous exposure to setmelanotide. * Inability to comply with QD injection regimen. * Pregnant and/or breastfeeding, or desiring to become pregnant during this trial. * Cognitive impairment that, in the Investigator's opinion, precludes participation to the study and completions of study procedures or questionnaires. * Participant is, in Investigator's opinion, otherwise not suitable to participate in the study.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With ≥ 5% Reduction in BMI From Baseline After 16 Weeks of Setmelanotide TreatmentBaseline to 16 weeksBMI was calculated using participant's weight and height assessments, using the following formula: BMI = kg/m\^2. Baseline was defined as the most recent measurement prior to the first administration of study drug.

Secondary

MeasureTime frameDescription
Percentage of Participants Aged ≥6 to <18 Years With ≥0.2 Reduction of BMI Z-Score From Baseline After 16 Weeks of Setmelanotide TreatmentBaseline to 16 weeksBMI was calculated using participant's weight and height assessments, using the following formula: BMI = kg/m\^2. The BMI Z-score indicated the number of standard deviations away from the mean. A Z-score of 0 is equal to the mean of a reference population (i.e., healthy, age and sex-matched individuals). A decrease of BMI Z-score indicates a reduction in BMI from Baseline whereas an increase of BMI-Z score indicates an increase in BMI from Baseline. Baseline was defined as the most recent measurement prior to the first administration of study drug.
Percentage of Participants Aged ≥18 Years With ≥5% Reduction of Body Weight From Baseline After 16 Weeks of Setmelanotide TreatmentBaseline to Week 16Baseline was defined as the most recent measurement prior to the first administration of study drug.
Change From Baseline in Waist Circumference in Participants Aged ≥18 Years After 16 Weeks of Setmelanotide TreatmentBaseline, Week 16Waist circumference was measured after participants had fasted for at least 8 hours and at approximately the same time at each visit. Baseline was defined as the most recent measurement prior to the first administration of study drug.
Change From Baseline in Daily Hunger Questionnaire Score in Participants Aged <12 Years After 16 Weeks of Setmelanotide TreatmentBaseline, Week 16Daily Hunger Questionnaire for participants \<12 years of age: Three aspects of hunger (average hunger in the last 24 hours, most/worst hunger in the last 24 hours, and morning hunger) were assessed daily using a pictorial (smiley face) version of the Likert rating scale with scores from 0 to 4, with 0 = not hungry at all and 4 = hungriest possible. Responses were recorded in the electronic diary. Each of the 3 items (average hunger, most/worst hunger, and morning hunger) was scored separately and averaged to calculate a total score ranging from 0 (not hungry at all) to 4 (hungriest possible) with higher score indicating more hunger. Baseline daily hunger score was calculated as the average of 7 days prior to Baseline visit.
Composite Percentage of Participants Aged ≥6 to <18 Years With ≥0.2 Reduction of BMI Z-Score or Participants Aged ≥18 Years With 5% Reduction of Body Weight From Baseline After 16 Weeks of Setmelanotide TreatmentBaseline to Week 16For participants aged ≥6 to \<18 years, a participant's BMI Z-score was considered for the analysis; for participants ≥18 years, a participant's body weight (kg) was considered for the analysis. BMI was calculated using participant's weight and height assessments, using the following formula: BMI = kg/m\^2. The BMI Z-score indicated the number of standard deviations away from the mean. A Z-score of 0 is equal to the mean of a reference population (i.e., healthy, age and sex-matched individuals). A decrease of BMI Z-score indicates a reduction in BMI from Baseline whereas an increase of BMI-Z score indicates an increase in BMI from Baseline. Baseline was defined as the most recent measurement prior to the first administration of study drug.
Number of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsBaseline, Week 16Parents or caregivers of participants \<12 years old answered the Caregiver Reported Global Hunger Question for participants who were \<12 years old. The following question was asked: How hungry is your child acting now? Possible responses were: Not hungry at all; A little hungry; Moderately hungry; and Extremely hungry. Baseline was defined as the most recent measurement prior to the first administration of study drug.
Number of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsBaseline, Week 16Global Hunger Questionnaire for participants ≥12 years of age. The following question was asked: Overall, how would you rate the hunger you experience now? Possible responses were: No hunger; Mild hunger; Moderate hunger; and Severe hunger. Baseline was defined as the most recent measurement prior to the first administration of study drug.
Number of Participants With Adverse Events (AEs)From first dose of study drug up to Day 141An AE was defined as any untoward medical occurrence or clinically significant worsening of an existing condition associated with the use of a drug in humans, whether or not considered drug related. An AE (also referred to as an adverse experience) could be any unfavorable and unintended sign (e.g., an abnormal laboratory finding), symptom, or disease temporally associated with the use of a drug, without any judgment about causality.
Change From Baseline in Daily Hunger Questionnaire Scores in Participants Aged ≥12 Years After 16 Weeks of Setmelanotide TreatmentBaseline, Week 16Daily Hunger Questionnaire for participants ≥12 years of age: Three aspects of hunger (average hunger in the last 24 hours, most/worst hunger in the last 24 hours, and morning hunger) were assessed daily using a numeric rating score for each from 0 to 10, with 0 = not hungry at all and 10 = hungriest possible. The responses to the Daily Hunger Questionnaire were recorded in the electronic diary. Baseline daily hunger score was calculated as the average of 7 days prior to Baseline visit.

Countries

United States

Participant flow

Pre-assignment details

Of the 19 participants screened, 18 participants were enrolled in the study.

Participants by arm

ArmCount
Setmelanotide
Participants received setmelanotide QD via SC injection for 16 weeks. All participants initiated treatment with setmelanotide (starting dose being age dependent) and dose escalated up to a maximum dose of 3.0 mg QD.
18
Total18

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event2

Baseline characteristics

CharacteristicSetmelanotide
Age, Continuous15.0 years
STANDARD_DEVIATION 5.3
BMI Z-Score3.935 z-score
STANDARD_DEVIATION 0.908
Body Mass Index (BMI)37.95 kilograms/square meter (kg/m^2)
STANDARD_DEVIATION 6.532
Body Weight102.76 kilograms (kg)
STANDARD_DEVIATION 30.12
Ethnicity (NIH/OMB)
Hispanic or Latino
4 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
14 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
3 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
14 Participants
Sex: Female, Male
Female
7 Participants
Sex: Female, Male
Male
11 Participants
Waist Circumference114.07 centimeters (cm)
STANDARD_DEVIATION 16.354

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 18
other
Total, other adverse events
18 / 18
serious
Total, serious adverse events
1 / 18

Outcome results

Primary

Percentage of Participants With ≥ 5% Reduction in BMI From Baseline After 16 Weeks of Setmelanotide Treatment

BMI was calculated using participant's weight and height assessments, using the following formula: BMI = kg/m\^2. Baseline was defined as the most recent measurement prior to the first administration of study drug.

Time frame: Baseline to 16 weeks

Population: Participants in the Full Analysis Set were analyzed.

ArmMeasureValue (NUMBER)
SetmelanotidePercentage of Participants With ≥ 5% Reduction in BMI From Baseline After 16 Weeks of Setmelanotide Treatment88.9 percentage of participants
p-value: <0.0001One-sided exact binomial test
Secondary

Change From Baseline in Daily Hunger Questionnaire Score in Participants Aged <12 Years After 16 Weeks of Setmelanotide Treatment

Daily Hunger Questionnaire for participants \<12 years of age: Three aspects of hunger (average hunger in the last 24 hours, most/worst hunger in the last 24 hours, and morning hunger) were assessed daily using a pictorial (smiley face) version of the Likert rating scale with scores from 0 to 4, with 0 = not hungry at all and 4 = hungriest possible. Responses were recorded in the electronic diary. Each of the 3 items (average hunger, most/worst hunger, and morning hunger) was scored separately and averaged to calculate a total score ranging from 0 (not hungry at all) to 4 (hungriest possible) with higher score indicating more hunger. Baseline daily hunger score was calculated as the average of 7 days prior to Baseline visit.

Time frame: Baseline, Week 16

Population: Participants in the Full Analysis Set with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
SetmelanotideChange From Baseline in Daily Hunger Questionnaire Score in Participants Aged <12 Years After 16 Weeks of Setmelanotide Treatment-1.490 units on a scaleStandard Deviation 1.2126
Secondary

Change From Baseline in Daily Hunger Questionnaire Scores in Participants Aged ≥12 Years After 16 Weeks of Setmelanotide Treatment

Daily Hunger Questionnaire for participants ≥12 years of age: Three aspects of hunger (average hunger in the last 24 hours, most/worst hunger in the last 24 hours, and morning hunger) were assessed daily using a numeric rating score for each from 0 to 10, with 0 = not hungry at all and 10 = hungriest possible. The responses to the Daily Hunger Questionnaire were recorded in the electronic diary. Baseline daily hunger score was calculated as the average of 7 days prior to Baseline visit.

Time frame: Baseline, Week 16

Population: Participants in the Full Analysis Set with available data were analyzed.

ArmMeasureGroupValue (MEAN)Dispersion
SetmelanotideChange From Baseline in Daily Hunger Questionnaire Scores in Participants Aged ≥12 Years After 16 Weeks of Setmelanotide TreatmentMost hunger-2.922 units on a scaleStandard Deviation 2.2851
SetmelanotideChange From Baseline in Daily Hunger Questionnaire Scores in Participants Aged ≥12 Years After 16 Weeks of Setmelanotide TreatmentAverage hunger-3.122 units on a scaleStandard Deviation 1.9999
SetmelanotideChange From Baseline in Daily Hunger Questionnaire Scores in Participants Aged ≥12 Years After 16 Weeks of Setmelanotide TreatmentMorning hunger-2.717 units on a scaleStandard Deviation 1.9393
Secondary

Change From Baseline in Waist Circumference in Participants Aged ≥18 Years After 16 Weeks of Setmelanotide Treatment

Waist circumference was measured after participants had fasted for at least 8 hours and at approximately the same time at each visit. Baseline was defined as the most recent measurement prior to the first administration of study drug.

Time frame: Baseline, Week 16

Population: Participants in the Full Analysis Set with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
SetmelanotideChange From Baseline in Waist Circumference in Participants Aged ≥18 Years After 16 Weeks of Setmelanotide Treatment-10.275 cmStandard Deviation 4.2272
Secondary

Composite Percentage of Participants Aged ≥6 to <18 Years With ≥0.2 Reduction of BMI Z-Score or Participants Aged ≥18 Years With 5% Reduction of Body Weight From Baseline After 16 Weeks of Setmelanotide Treatment

For participants aged ≥6 to \<18 years, a participant's BMI Z-score was considered for the analysis; for participants ≥18 years, a participant's body weight (kg) was considered for the analysis. BMI was calculated using participant's weight and height assessments, using the following formula: BMI = kg/m\^2. The BMI Z-score indicated the number of standard deviations away from the mean. A Z-score of 0 is equal to the mean of a reference population (i.e., healthy, age and sex-matched individuals). A decrease of BMI Z-score indicates a reduction in BMI from Baseline whereas an increase of BMI-Z score indicates an increase in BMI from Baseline. Baseline was defined as the most recent measurement prior to the first administration of study drug.

Time frame: Baseline to Week 16

Population: Participants in the Full Analysis Set were analyzed.

ArmMeasureValue (NUMBER)
SetmelanotideComposite Percentage of Participants Aged ≥6 to <18 Years With ≥0.2 Reduction of BMI Z-Score or Participants Aged ≥18 Years With 5% Reduction of Body Weight From Baseline After 16 Weeks of Setmelanotide Treatment88.9 percentage of participants
p-value: <0.0001One-sided exact binomial test
Secondary

Number of Participants With Adverse Events (AEs)

An AE was defined as any untoward medical occurrence or clinically significant worsening of an existing condition associated with the use of a drug in humans, whether or not considered drug related. An AE (also referred to as an adverse experience) could be any unfavorable and unintended sign (e.g., an abnormal laboratory finding), symptom, or disease temporally associated with the use of a drug, without any judgment about causality.

Time frame: From first dose of study drug up to Day 141

Population: Participants in the Safety Analysis Set were analyzed.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
SetmelanotideNumber of Participants With Adverse Events (AEs)18 Participants
Secondary

Number of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 Years

Parents or caregivers of participants \<12 years old answered the Caregiver Reported Global Hunger Question for participants who were \<12 years old. The following question was asked: How hungry is your child acting now? Possible responses were: Not hungry at all; A little hungry; Moderately hungry; and Extremely hungry. Baseline was defined as the most recent measurement prior to the first administration of study drug.

Time frame: Baseline, Week 16

Population: Participants in the Full Analysis Set with available data were analyzed.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsNot hungry at all (Baseline) - Not hungry at all (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsA little hungry (Baseline) - Not hungry at all (week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsModerately hungry (Baseline) - Not hungry at all (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsExtremely hungry (Baseline) - Not hungry at all (Week 16)2 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsNot hungry at all (Baseline) - A little hungry (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsA little hungry (Baseline) - A little hungry (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsModerately hungry (Baseline) - A little hungry (Week 16)1 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsExtremely hungry (Baseline) - A little hungry (Week 16)2 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsNot hungry at all (Baseline) - Moderately hungry (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsA little hungry (Baseline) - Moderately hungry (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsModerately hungry (Baseline) - Moderately hungry (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsExtremely hungry (Baseline) - Moderately hungry (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsNot hungry at all (Baseline) - Extremely hungry (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsA little hungry (Baseline) - Extremely hungry (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsModerately hungry (Baseline) - Extremely hungry (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged < 12 YearsExtremely hungry (Baseline) - Extremely hungry (Week 16)0 Participants
Secondary

Number of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 Years

Global Hunger Questionnaire for participants ≥12 years of age. The following question was asked: Overall, how would you rate the hunger you experience now? Possible responses were: No hunger; Mild hunger; Moderate hunger; and Severe hunger. Baseline was defined as the most recent measurement prior to the first administration of study drug.

Time frame: Baseline, Week 16

Population: Participants in the Full Analysis Set with available data were analyzed.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsNo hunger (Baseline) - No hunger (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsMild hunger (Baseline) - No hunger (Week 16)1 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsModerate hunger (Baseline) - No hunger (Week 16)3 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsSevere hunger (Baseline) - No hunger (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsNo hunger (Baseline) - Mild hunger (Week 16)1 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsMild hunger (Baseline) - Mild hunger (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsModerate hunger (Baseline) - Mild hunger (Week 16)3 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsSevere hunger (Baseline) - Mild hunger (Week 16)2 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsNo hunger (Baseline) - Moderate hunger (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsMild hunger (Baseline) - Moderate hunger (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsModerate hunger (Baseline) - Moderate hunger (Week 16)1 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsSevere hunger (Baseline) - Moderate hunger (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsNo hunger (Baseline) - Severe hunger (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsMild hunger (Baseline) - Severe hunger (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsModerate hunger (Baseline) - Severe hunger (Week 16)0 Participants
SetmelanotideNumber of Participants With Shift From Baseline in Global Hunger Questionnaire Score to Week 16 in Participants Aged ≥12 YearsSevere hunger (Baseline) - Severe hunger (Week 16)0 Participants
Secondary

Percentage of Participants Aged ≥18 Years With ≥5% Reduction of Body Weight From Baseline After 16 Weeks of Setmelanotide Treatment

Baseline was defined as the most recent measurement prior to the first administration of study drug.

Time frame: Baseline to Week 16

Population: Participants in the Full Analysis Set with available data were analyzed.

ArmMeasureValue (NUMBER)
SetmelanotidePercentage of Participants Aged ≥18 Years With ≥5% Reduction of Body Weight From Baseline After 16 Weeks of Setmelanotide Treatment80.0 percentage of participants
p-value: <0.0001One-sided exact binomial test
Secondary

Percentage of Participants Aged ≥6 to <18 Years With ≥0.2 Reduction of BMI Z-Score From Baseline After 16 Weeks of Setmelanotide Treatment

BMI was calculated using participant's weight and height assessments, using the following formula: BMI = kg/m\^2. The BMI Z-score indicated the number of standard deviations away from the mean. A Z-score of 0 is equal to the mean of a reference population (i.e., healthy, age and sex-matched individuals). A decrease of BMI Z-score indicates a reduction in BMI from Baseline whereas an increase of BMI-Z score indicates an increase in BMI from Baseline. Baseline was defined as the most recent measurement prior to the first administration of study drug.

Time frame: Baseline to 16 weeks

Population: Participants in the Full Analysis Set with available data were analyzed.

ArmMeasureValue (NUMBER)
SetmelanotidePercentage of Participants Aged ≥6 to <18 Years With ≥0.2 Reduction of BMI Z-Score From Baseline After 16 Weeks of Setmelanotide Treatment92.3 percentage of participants
p-value: <0.0001One-sided exact binomial test

Source: ClinicalTrials.gov · Data processed: Feb 8, 2026