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Trial · NCT01968187

Treatment of Hyperphagia Behavioral Symptoms in Children and Adults Diagnosed With Prader-Willi Syndrome

NCT01968187, Phase 2, Completed, Ferring Pharmaceuticals; results first posted 2025-03-27

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Treatment of Hyperphagia Behavioral Symptoms in Children and Adults Diagnosed With Prader-Willi Syndrome. Trials, record NCT01968187. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01968187

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Treatment of Hyperphagia Behavioral Symptoms in Children and Adults Diagnosed With Prader-Willi Syndrome
NCT number
NCT01968187
Status
Completed
Phases
Phase 2
Enrollment
38 participants, actual
Lead sponsor
Ferring Pharmaceuticals
Conditions
Hyperphagia in Prader-Willi Syndrome
Interventions
FE 992097, Placebo
First posted
2013-10-23
Last updated
2025-03-27
Results first posted
2025-03-27

Source ClinicalTrials.gov

Registered outcomes5

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryChange From Baseline in Hyperphagia in Prader-Willi Syndrome (PWS) Questionnaires- Responsiveness (HPWSQ-R) Total Score at End-of-treatment (Day 15)From Day 1 (baseline) to Day 15
The HPWSQ-R is an 11-item questionnaire examining the psychological, developmental, and neurobiological correlates of hyperphagia in PWS. The items are classified into 3 domains; behavior, drive, and severity with each item rated on a five-point scale (1: not at all/none of the time/extremely easy to 5: extremely/all of the time/extremely hard). The questionnaire was completed by the parent/caregiver using a 1-week recall period. Total score was the sum of all the items in the three domains and ranged from 11 (no hyperphagia behaviors) to 55 (most severe hyperphagia behaviors). Change from baseline in HPWSQ-R Total Score at Day 15 is presented for this outcome measure.
SecondaryClinical Global Impression- Improvement After Treatment (CGI-I) Score at End-of-treatment (Day 15)At Day 15
The Clinical Global Impression (CGI) scale consists of a 7-point clinician rating of illness severity (1 = normal, not at all ill, 7 = among the most extremely ill patients), at the beginning of the trial (baseline) - Clinical Global Impression-Severity Rating (CGI-S) and a 7-point clinician rating of improvement of patient condition (1=very much improved since baseline/initiation of treatment, 7=very much worse from baseline), during and at the end of the trial (Day 15) - CGI-I. The CGI-I score at Day 15 is presented for this outcome measure.
SecondaryChange From Baseline in HPWSQ-R Domain Scores (Behavior, Drive and Severity) at End-of-treatment (Day 15)From Day 1 (baseline) to Day 15
The HPWSQ-R is an 11-item questionnaire examining the psychological, developmental, and neurobiological correlates of hyperphagia in PWS. The items were classified into 3 domains; behavior, drive, and severity with each item rated on a five-point score range from 1 (not at all/none of the time/extremely easy) to 5 (extremely/all of the time/extremely hard). The questionnaire was completed by the parent/caregiver using a 1-week recall period. Changes in the HPWSQ-R Total Score and in the Domain Scores (behavior, drive, and severity) at Day 15 is presented for this outcome measure. HPWSQ-R Behavior, Drive and Severity scores range from 5-25, 4-20, and 2-10, respectively, with higher scores indicating a worse outcome. Change from baseline is presented = (Day 15 score minus Baseline score).
SecondaryChange From Baseline in Children's Yale-Brown Obsessive Compulsive Scale Score (CY-BOCS) at End-of-treatment (Day 15)From Day 1 (baseline) to Day 15
The CY-BOCS is a clinician rated, semi-structured inventory of specific symptoms and symptom severity in pediatric obsessive-compulsive disorder (OCD). Total scores on the CY-BOCS are calculated using a symptom checklist and severity scale. The 10 severity items are summed to produce an Obsessions Severity Score (5 items), Compulsions Severity Score (5 items), and Total score (sum of all 10 severity items). The total score is calculated by summing the 10 individual scores and ranges from 0 (no obsessions or compulsions) to 40 (most severe OC).
SecondaryChange From Baseline in the Food Domain Score of the Reiss Profile at End-of-treatment (Day 15)From Day 1 (baseline) to Day 15
The Food Domain Score of the Reiss Profile consisted of 7 questions that pertain to food seeking behavior. The questions were rated on a five point scale ranging from -2 (strongly disagree; this phrase is not at all characteristic of the person) to 2 (strongly agree; this phrase is definitely characteristic of the person). Total score was defined as the sum of all individual item scores. The total score ranged from -14 to 14 with higher scores indicating higher severity. Change from baseline in Food Domain of the Reiss Profile at Day 15 is presented for this outcome measure.

Outcomes5

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYChange From Baseline in Hyperphagia in Prader-Willi Syndrome (PWS) Questionnaires- Responsiveness (HPWSQ-R) Total Score at End-of-treatment (Day 15)From Day 1 (baseline) to Day 15
The analysis population included the full analysis set (FAS) which consisted of all subjects in the safety population who had the primary efficacy endpoint measured (at baseline and phone call \[Day 8\] ±1 or Day 15). Analyses for the FAS were conducted according to the randomized treatment.
score on a scaleLEAST_SQUARES_MEAN
SECONDARYClinical Global Impression- Improvement After Treatment (CGI-I) Score at End-of-treatment (Day 15)At Day 15
The analysis population included the full analysis set (FAS) which consisted of all subjects in the safety population who had the primary efficacy endpoint measured (at baseline and phone call \[Day 8\] ±1 or Day 15). Analyses for the FAS were conducted according to the randomized treatment.~Number of subjects analyzed signifies those subjects who were evaluable for this endpoint.
score on a scaleLEAST_SQUARES_MEAN
SECONDARYChange From Baseline in HPWSQ-R Domain Scores (Behavior, Drive and Severity) at End-of-treatment (Day 15)From Day 1 (baseline) to Day 15
The analysis population included the FAS which consisted of all subjects in the safety population who had the primary efficacy endpoint measured (at baseline and phone call \[Day 8\] ±1 or Day 15). Analyses for the FAS were conducted according to the randomized treatment.
score on a scaleLEAST_SQUARES_MEAN
SECONDARYChange From Baseline in Children's Yale-Brown Obsessive Compulsive Scale Score (CY-BOCS) at End-of-treatment (Day 15)From Day 1 (baseline) to Day 15
The analysis population included the FAS which consisted of all subjects in the safety population who had the primary efficacy endpoint measured (at baseline and phone call \[Day 8\] ±1 or Day 15). Analyses for the FAS were conducted according to the randomized treatment.~Number of subjects analyzed signifies those subjects who were evaluable for this endpoint
score on a scaleLEAST_SQUARES_MEAN
SECONDARYChange From Baseline in the Food Domain Score of the Reiss Profile at End-of-treatment (Day 15)From Day 1 (baseline) to Day 15
The analysis population included the FAS which consisted of all subjects in the safety population who had the primary efficacy endpoint measured (at baseline and phone call \[Day 8\] ±1 or Day 15). Analyses for the FAS were conducted according to the randomized treatment.~Number of subjects analyzed signifies those subjects who were evaluable for this endpoint.
score on a scaleLEAST_SQUARES_MEAN

Results by group14

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Change From Baseline in Hyperphagia in Prader-Willi Syndrome (PWS) Questionnaires- Responsiveness (HPWSQ-R) Total Score at End-of-treatment (Day 15)Carbetocin (FE 992097)-15.6Standard Error 3.06score on a scale
Change From Baseline in Hyperphagia in Prader-Willi Syndrome (PWS) Questionnaires- Responsiveness (HPWSQ-R) Total Score at End-of-treatment (Day 15)Placebo-8.9Standard Error 2.61score on a scale
Clinical Global Impression- Improvement After Treatment (CGI-I) Score at End-of-treatment (Day 15)Carbetocin (FE 992097)2.7Standard Error 0.49score on a scale
Clinical Global Impression- Improvement After Treatment (CGI-I) Score at End-of-treatment (Day 15)Placebo3.6Standard Error 0.43score on a scale
Change From Baseline in HPWSQ-R Domain Scores (Behavior, Drive and Severity) at End-of-treatment (Day 15)Carbetocin (FE 992097)Behavior-5.9Full Range -16 to 3score on a scale
Change From Baseline in HPWSQ-R Domain Scores (Behavior, Drive and Severity) at End-of-treatment (Day 15)PlaceboBehavior-3.9Full Range -14 to 3score on a scale
Change From Baseline in HPWSQ-R Domain Scores (Behavior, Drive and Severity) at End-of-treatment (Day 15)Carbetocin (FE 992097)Drive-4.5Full Range -13 to 3score on a scale
Change From Baseline in HPWSQ-R Domain Scores (Behavior, Drive and Severity) at End-of-treatment (Day 15)PlaceboDrive-2.9Full Range -16 to 3score on a scale
Change From Baseline in HPWSQ-R Domain Scores (Behavior, Drive and Severity) at End-of-treatment (Day 15)Carbetocin (FE 992097)Severity-3.3Full Range -7 to 2score on a scale
Change From Baseline in HPWSQ-R Domain Scores (Behavior, Drive and Severity) at End-of-treatment (Day 15)PlaceboSeverity-1.8Full Range -7 to 3score on a scale

Participant flow8

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDCarbetocin (FE 992097)18
Overall StudySTARTEDPlacebo20
Overall StudyTreatedCarbetocin (FE 992097)17
Overall StudyTreatedPlacebo20
Overall StudyCOMPLETEDCarbetocin (FE 992097)17
Overall StudyCOMPLETEDPlacebo19
Overall StudyNOT COMPLETEDCarbetocin (FE 992097)1
Overall StudyNOT COMPLETEDPlacebo1

Adverse events36

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAbdominal pain upperGastrointestinal disordersCarbetocin (FE 992097)1171
otherAbdominal pain upperGastrointestinal disordersPlacebo1201
otherDiarrheaGastrointestinal disordersCarbetocin (FE 992097)1171
otherDiarrheaGastrointestinal disordersPlacebo0200
otherConjunctivitis infectiveInfections and infestationsCarbetocin (FE 992097)1171
otherConjunctivitis infectiveInfections and infestationsPlacebo0200
otherSinusitisInfections and infestationsCarbetocin (FE 992097)0170
otherSinusitisInfections and infestationsPlacebo1201
otherMedication errorInjury, poisoning and procedural complicationsCarbetocin (FE 992097)1171
otherMedication errorInjury, poisoning and procedural complicationsPlacebo2202

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityCarbetocin (FE 992097)017
Total, all-cause mortalityPlacebo020
Total, other adverse eventsCarbetocin (FE 992097)717
Total, other adverse eventsPlacebo820
Total, serious adverse eventsCarbetocin (FE 992097)017
Total, serious adverse eventsPlacebo020

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
29925684DERIVED

Source PubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons2

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
Carbetocin (FE 992097) vs Placebo: deaths from any causeTrial comparisons
Carbetocin (FE 992097) vs Placebo: serious adverse eventsTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT01968187

GET https://conductscience.org/api/trials/v1/NCT01968187/events?page=2