Clinical trial • Phase IV • Neurology

Fenfluramine hydrochloride for Myoclonic-astatic epilepsy (Doose syndrome)

Phase IV trial of Fenfluramine hydrochloride for Myoclonic-astatic epilepsy (Doose syndrome). open-label, none/not specified-controlled. 10 participants.

Overview

Trial Therapeutic Area
Neurology
Trial Disease
Myoclonic-astatic epilepsy (Doose syndrome)
Trial Stage
Phase IV
Drug Modality
Small molecule
Paediatric Trial
Yes
Orphan Drug
Yes

Key dates

Initial CTIS Submission Date
14-10-2024
First CTIS Authorization Date
24-10-2024

Trial design

open-label, none/not specified-controlled Phase IV trial across 3 sites in Germany.

Open Label
Yes
Comparator
None/Not specified
Single Multiple Or Escalation Dose Combined
Yes
Target Sample Size
10

Eligibility

Recruits 10 paediatric patients.

Vulnerable Population
Includes children aged 1 (12 months) to 17 years. Informed consent must be obtained: "Subject and parents/caregiver have been informed of the nature of the study and written informed consent has been obtained from the patient and the legally responsible parents/caregiver". Age-specific participant information and consent/assent forms are provided (documents for parents, children 7-11, and children 8-17 are listed).

Inclusion criteria

  • {"criterion_text":"- Subjects is currently enrolled in FFA-MAE-study"}
  • {"criterion_text":"- Subject and parents/caregiver have been informed of the nature of the study and written informed consent has been obtained from the patient and the legally responsible parents/caregiver"}
  • {"criterion_text":"- Subject is between 1 (12 months) and 17 years"}
  • {"criterion_text":"- In the medical opinion of the Investigator, subject must be a candidate for continued treatment for an extended period of time with Fenfluramine (i.e. subject has demonstrated a clinically meaningful benefit with Fenfluramine in the prior trial (FFA-MAE), and benefits of continued treatment outweigh potential risks)"}
  • {"criterion_text":"- Clinically meaningful benefit is defined as follows: at least 50% reduction of total number of seizures (sum of GTKA, TS, AS, AB, MS) compared to baseline in FFA-MAE-study"}
  • {"criterion_text":"- Subjects receives >= 1 AED in addition to Fenfluramine"}

Exclusion criteria

  • {"criterion_text":"- Subject has a known hypersensitivity to Fenfluramine hydrochloride or other components in the study formulation"}
  • {"criterion_text":"- Weight loss of 10 percent or more compared to visit 2 (first intake of IMP) of the FFA-MAE study"}
  • {"criterion_text":"- Certain drugs, as listed in the prohibited food & medication section in the protocol"}
  • {"criterion_text":"- Intake of any investigational medicinal product (IMP) other than Fenfluramine"}
  • {"criterion_text":"- Any cardiovascular abnormality"}

Endpoints

Primary endpoints

  • {"endpoint_text":"- Efficacy Endpoint. Change of individual (per subject) number and frequency of countable seizures compared to the baseline visit of the previous FFA-MAE study (before onset of Fenfluramine treatment)","definition_or_measurement_approach":"Change per subject in number and frequency of countable seizures compared to the baseline visit of the previous FFA-MAE study (before onset of Fenfluramine treatment); seizure counts and frequency measured relative to prior-study baseline."}
  • {"endpoint_text":"- Safety: (Serious) Adverse Events; Laboratory measurements; Vital signs; Physical examination; 12-lead electrocardiogram (ECGs); Doppler echocardiogram (ECHOs); Body weight","definition_or_measurement_approach":"Monitoring and recording of (serious) adverse events, laboratory measurements, vital signs, physical examinations, 12-lead ECGs, Doppler echocardiograms (ECHOs), and body weight."}

Recruitment

Planned Sample Size
10
Recruitment Window Months
106
Consent Approach
Written informed consent must be obtained from the patient and the legally responsible parents/caregiver. Age-specific subject information and informed consent/assent materials are provided (documents listed for parents and for children aged 7-11 and 8-17).

Geography

Total Number Of Sites
3
Total Number Of Participants
10

Germany

Earliest CTIS Part Ii Submission Date
10-10-2024
Latest Decision Or Authorization Date
02-06-2025
Processing Time Days
235
Number Of Sites
3
Number Of Participants
10

Sites

Site Name
Schoen Klinik Vogtareuth SE & Co. KG
Department Name
Department of Neuropaediatrics and Neurological Rehabilitation
Contact Person Name
Milka Pringsheim
Contact Person Email
mpringsheim@schoen-kliniken.de
Site Name
Krankenhaus Mara gGmbH
Department Name
Department for Epilepsy
Contact Person Name
Tilman Polster
Contact Person Email
tilman.polster@mara.de
Site Name
Universitaetsklinikum Schleswig-Holstein AöR
Department Name
Department of Children and adolesce
Contact Person Name
Hiltrud Muhle
Contact Person Email
hiltrud.muhle@uksh.de

Sponsor

Primary sponsor

Full Name
Universitaetsklinikum Schleswig-Holstein AöR
Organisation Type
Hospital/Clinic/Other health care facility
Country Of Registered Address
Germany

Third parties

  • {"country":"Belgium","full_name":"UCB Biopharma SRL, Belgium","duties_or_roles":"Source of monetary support","organisation_type":""}

Investigational products

Investigational Product Name
Fintepla 2.2 mg/ml oral solution
Active Substance
Fenfluramine hydrochloride
Modality
Small molecule
Routes Of Administration
Oral
Route
Oral
Authorisation Status
Authorised (marketing authorisation EU/1/20/1491/004)
Orphan Designation
Yes
Starting Dose
Minimum 0.2 mg/kg/day (given BID)
Dose Levels
0.2 mg/kg/day BID up to 0.8 mg/kg/day BID (max 30.0 mg/day)
Frequency
BID (twice daily)
Maximum Dose
0.8 mg/kg/day (or maximum 30.0 mg/day)
Dose Escalation Increase
Initial: 0.2 mg/kg/day (BID); can be adapted up to 0.8 mg/kg/day (BID)
Combination Treatment
Yes

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