Open-Label Extension Study of Soticlestat in Dravet and Lennox-Gastaut Syndromes

Recruitment & Eligibility

Status: Authorised-recruitment may be ongoing or finished

Sex: All

Target Recruitment: 376

Inclusion Criteria

Subject must have:
? Been previously enrolled in soticlestat clinical study TAK-935-3001 or TAK-935-3002.
1. Received at least 10 weeks of treatment (combined titration and Maintenance Period) with the study drug in the antecedent study and not have a serious or severe AE that, in the investigator’s or sponsor’s opinion, was related to the study drug and would make it unsafe for the patient to continue receiving the study drug.
2. In the opinion of the investigator, the subject has the potential to benefit from the administration of soticlestat.
3. In the opinion of the investigator, the subject and/or parent or legal guardian is capable of understanding and complying with protocol requirements including the use of digital tools, complete appropriate assessments, maintain an accurate and complete daily seizure diary and take study drug for the duration of the study.
4. The subject or the subject’s parent or legal guardian are willing and able to read, understand, and sign and date a written or an electronic informed consent form (ICF), assent form (if applicable), and any required privacy authorization prior to the initiation of any study procedures.
5. Female subjects of childbearing potential (defined as first menarche) must have a negative pregnancy test and agree to use an effective method of birth control during the study and for 30 days following the last dose of study drug.
Effective contraceptive methods are as follows:
? Double-barrier method (contraceptive sponge, diaphragm, or cervical cap with spermicidal jellies or creams PLUS male condom).
? Progestogen-only hormonal contraception, where inhibition of ovulation is not the primary mode of action, PLUS condom with or without spermicide.
? Sexual abstinence:
i. Sexual abstinence may be considered as a method only if defined as refraining from heterosexual intercourse and determined to be the usual lifestyle before entering the study with reliability of abstinence for the duration of the study participation and for 30 days after last dose of study drug.
? Sterilization:
ii. Bilateral tubal occlusion.
iii. Vasectomized partner (provided that the partner is the sole sexual partner of the subject and the absence of sperm in the ejaculate has been confirmed).
Are the trial subjects under 18? yes
Number of subjects for this age range: 264
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range 112
F.1.3 Elderly (>=65 years) no
F.1.3.1 Number of subjects for this age range

Exclusion Criteria

1. Unstable, clinically significant neurologic (other than the disease being studied), psychiatric, cardiovascular, ophthalmologic, pulmonary, hepatic, renal, metabolic, gastrointestinal, urologic, immunologic, hematopoietic, endocrine disease, malignancy including progressive tumors, or other abnormality that may impact the ability to participate in the study or that may potentially confound the study results. It is the responsibility of the investigator to assess the clinical significance; however, consultation with the medical monitor may be warranted.
2. Abnormal and clinically significant ECG abnormality at Visit 1 including QT interval with Fridericia correction method (QTcF) >450 ms confirmed with a repeat ECG using manual measurement of QTcF. Clinically significant ECG abnormalities should be discussed with the medical monitor.
3. Subject is currently pregnant or breastfeeding or is planning to become pregnant during the study or within 30 days of the last dose of study drug.
4. Subject is considered by the investigator to be at imminent risk of suicide or injury to self, others, or property. Subjects who have positive answers on item numbers 4 or 5 on the CSSRS before dosing are excluded. This scale will only be administered to subjects aged =6 years.

Study & Design

Study Type: Interventional clinical trial of medicinal product

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method

Secondary Outcome Measures

Name	Time	Method

Related Trials