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Serotonin Receptor Agonist

Fenfluramine Hydrochloride for Photosensitive Epilepsy

Phase 3
Waitlist Available
Led By Elizabeth Thiele, M.D., Ph.D.
Research Sponsored by Elizabeth Thiele
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 month 3
Awards & highlights

Study Summary

This trial will test if fenfluramine is an effective, safe and well tolerated treatment for Sunflower Syndrome, a rare epileptic disorder.

Eligible Conditions
  • Photosensitive Epilepsy

Timeline

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

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
% Change in Frequency of Handwaving Episodes
Change in Frequency of Generalized Tonic-clonic Seizures
Secondary outcome measures
Change in Spike Frequency on EEG
Changes in Anger Determined by the Beck Self Report Inventory
Changes in Anxiety Determined by the Beck Self Report Inventory
+8 more

Side effects data

From 2022 Phase 2 trial • 7 Patients • NCT03861871
86%
Lethargy
86%
Low appetite
43%
Upper respiratory infection
43%
Common cold
29%
Weight Loss
29%
Diarrhea
29%
Crying episode
29%
Constipation
14%
Teething
14%
Urinary tract infection
14%
Hair loss
14%
Vomitting
14%
Low grade fever
14%
Screaming episode
14%
Pneumonia
14%
Intestinal gas
14%
Rash on face
14%
Loose bowel
14%
Bite on finger
14%
Aspiration pneumonia
14%
Irritability
14%
Respiratory infection
14%
Low tone
14%
Loose stool
14%
Mucus plug in throat
14%
Sialorrhea
14%
Regurgitation after meals
14%
Grinding teeth
14%
SARS-CoV2 infection
14%
Clostridium dificile infection
100%
80%
60%
40%
20%
0%
Study treatment Arm
Fenfluramine Hydrochloride

Trial Design

1Treatment groups
Experimental Treatment
Group I: Treatment groupExperimental Treatment1 Intervention
The treatment group will include approximately 20 pediatric and young adult patients (ages 4-25 years) seen by Elizabeth A. Thiele, M.D., Ph.D. at MGH's Pediatric Epilepsy Clinic. Subjects will be treated on an outpatient basis and will not require hospital admission. The treatment group will receive the investigational new drug, Fenfluramine Hydrochloride for approximately 4 months. Patients that benefit from this treatment will remain on medication through an extension phase of the study.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Fenfluramine
FDA approved

Find a Location

Who is running the clinical trial?

Elizabeth ThieleLead Sponsor
Elizabeth Anne ThieleLead Sponsor
1 Previous Clinical Trials
15 Total Patients Enrolled
Zogenix International Limited, Inc., a subsidiary of Zogenix, Inc.Industry Sponsor
11 Previous Clinical Trials
1,725 Total Patients Enrolled

Media Library

Fenfluramine Hydrochloride (Serotonin Receptor Agonist) Clinical Trial Eligibility Overview. Trial Name: NCT03790137 — Phase 3
Photosensitive Epilepsy Research Study Groups: Treatment group
Photosensitive Epilepsy Clinical Trial 2023: Fenfluramine Hydrochloride Highlights & Side Effects. Trial Name: NCT03790137 — Phase 3
Fenfluramine Hydrochloride (Serotonin Receptor Agonist) 2023 Treatment Timeline for Medical Study. Trial Name: NCT03790137 — Phase 3

Frequently Asked Questions

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

How can I become a subject in this experiment?

"The investigators conducting this study are looking for 20 participants that have photosensitive epilepsy and fall in the 4-25 age range."

Answered by AI

How many subjects are enrolled in this clinical trial?

"No, this study is no longer looking for new participants. The listing was created on May 31st, 2019 and last edited September 16th, 2022. There are 242 other trials currently enrolling patients with photosensitive epilepsy and 6 studies using Fenfluramine Hydrochloride if you are seeking out active clinical trials."

Answered by AI

Are there any historical instances of Fenfluramine Hydrochloride being used in medical research?

"There are 6 total clinical trials studying Fenfluramine Hydrochloride. 5 of those trials are currently in progress, with the final stage of testing. Most of the research for this medication is conducted in Boston, Massachusetts; however, there are 236 medical centres running trials for Fenfluramine Hydrochloride across the globe."

Answered by AI

Does this type of clinical trial exist anywhere else in the world?

"Zogenix, Inc.'s subsidiary Zogenix International Limited, Inc. first sponsored a Fenfluramine Hydrochloride study in 2016 with 373 participants. After the successful initial trial, the medication received Phase 3 drug approval and there are now 6 ongoing clinical trials involving 56 cities and 15 countries."

Answered by AI

Could patients over the age of thirty-five be involved in this research project?

"This study is looking for participants who are aged 4 to 25 years old."

Answered by AI

Are there any short or long-term dangers to patients when taking Fenfluramine Hydrochloride?

"There is some evidence of efficacy and multiple rounds of safety data, so Fenfluramine Hydrochloride was given a score of 3."

Answered by AI

Is it currently possible to sign up for this experiment?

"Unfortunately, this specific trial is not actively recruiting patients right now. It was originally posted on May 31st, 2019 and the last edit was made on September 16th, 2020. With that said, there are 248 other trials that are currently looking for participants."

Answered by AI

What are researchers hoping to discover or prove with this clinical trial?

"The primary outcome of this study, which will be evaluated based on Subject's Seizure frequency recorded at 28 days, 56 Days and 84 Days after receiving the first dose of medication, with completion determined 84 days after initial dosing. The secondary outcomes include Changes in Cognitive Functioning as assessed by the Weschler Intelligence Scale for Children (WISC-V) -Working Memory subtests and WAIS-IV -Processing Speed and Working Memory subtests (for participants aged 17 to 25 years old), as well as changes in self-concept according to the Beck Self Report Inventory."

Answered by AI
~3 spots leftby May 2025