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Alpha-2A Adrenergic Receptor Agonist

Guanfacine Extended Release for Prader-Willi Syndrome (PWS-GXR Trial)

Phase 4
Recruiting
Led By Deepan Singh, MD
Research Sponsored by Maimonides Medical Center
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Be younger than 65 years old
Timeline
Screening 3 weeks
Treatment Varies
Follow Up 16 weeks
Awards & highlights

PWS-GXR Trial Summary

This trial will study if a medication can reduce aggressive and self-harming behavior in people with PWS, and its safety, esp. its metabolic effects.

Who is the study for?
This trial is for individuals with Prader-Willi Syndrome who show moderate or severe aggression and self-harm, confirmed by genetic testing. It's not for those pregnant, with swallowing issues, psychosis, mania, lactose intolerance, low heart rate or blood pressure.Check my eligibility
What is being tested?
The study tests if Guanfacine Extended Release (GXR) can reduce aggression and self-injury in Prader-Willi Syndrome patients compared to a placebo. The trial also looks at GXR's safety regarding metabolic effects.See study design
What are the potential side effects?
Potential side effects of GXR may include drowsiness, headache, stomach pain, nausea; less commonly slow heart rate (bradycardia), low blood pressure (hypotension), and possibly metabolic changes.

PWS-GXR Trial Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~16 weeks
This trial's timeline: 3 weeks for screening, Varies for treatment, and 16 weeks for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Clinical Global Impression- Improvement change from baseline to week 16
Secondary outcome measures
A change in Aberrant Behavior Checklist from baseline to week 16
A change in Modified Overt Aggression Scale from baseline to week 16
A change in Self-Injury Trauma Scale from baseline to week 16

Side effects data

From 2011 Phase 4 trial • 42 Patients • NCT01069523
31%
Sedation
19%
Fatigue
6%
Stomachache
6%
Dizziness
100%
80%
60%
40%
20%
0%
Study treatment Arm
Guanfacine Extended Release
Placebo

PWS-GXR Trial Design

2Treatment groups
Experimental Treatment
Placebo Group
Group I: GXRExperimental Treatment1 Intervention
Immediately following the 8-week blinded randomized trial, an 8-week open-label continuation phase will be pursued to further define efficacy and tolerability of GXR, and to establish its safety with specific focus on metabolic profile.
Group II: PlaceboPlacebo Group1 Intervention
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Guanfacine Extended Release
2010
Completed Phase 4
~50

Find a Location

Who is running the clinical trial?

Maimonides Medical CenterLead Sponsor
69 Previous Clinical Trials
15,262 Total Patients Enrolled
1 Trials studying Prader-Willi Syndrome
30 Patients Enrolled for Prader-Willi Syndrome
Deepan Singh, MDPrincipal InvestigatorMaimonides Medical Center
4 Previous Clinical Trials
152 Total Patients Enrolled
3 Trials studying Prader-Willi Syndrome
132 Patients Enrolled for Prader-Willi Syndrome

Media Library

Guanfacine Extended Release (Alpha-2A Adrenergic Receptor Agonist) Clinical Trial Eligibility Overview. Trial Name: NCT05657860 — Phase 4
Prader-Willi Syndrome Research Study Groups: GXR, Placebo
Prader-Willi Syndrome Clinical Trial 2023: Guanfacine Extended Release Highlights & Side Effects. Trial Name: NCT05657860 — Phase 4
Guanfacine Extended Release (Alpha-2A Adrenergic Receptor Agonist) 2023 Treatment Timeline for Medical Study. Trial Name: NCT05657860 — Phase 4

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

Are juveniles of a certain age qualified to participate in this experiment?

"This research is open to applicants aged between 6 and 35 years old."

Answered by AI

Who has the opportunity to take part in this examination?

"To qualify for this medical trial, applicants must have a neurodegenerative disease and be between 6-35 years old. 33 individuals are accepted in total."

Answered by AI

Has GXR attained regulatory clearance from the FDA?

"Our assessment at Power rates the safety of GXR as a 3, since this is an approved Phase 4 trial which has already been deemed safe for general use."

Answered by AI

What is the overall size of this research project's participant pool?

"Affirmative. Clinicaltrials.gov showcases that this medical trial is currently looking for participants; the initial posting was on December 17th 2020 and there has since been a recent update on December 12th 2022. This study requires recruitment of 33 individuals from 1 location."

Answered by AI

Are there any vacancies for participation in this trial?

"Affirmative, clinicaltrials.gov data indicates that this medical trial is presently in search of participants. Begun on December 17th 2020 and most recently updated on the 12th of December 2022, 33 patients are being invited to join from a single facility."

Answered by AI
~8 spots leftby Apr 2025