A PROSPECTIVE, MULTINATIONAL, OPEN-LABEL, SINGLE-ARM, EXPLORATIVE STUDY TO EVALUATE THE TOLERABILITY AND EFFICACY OF LACOSAMIDE WHEN ADDED TO LEVETIRACETAM WITH WITHDRAWAL OF THE CONCOMITANT SODIUM CHANNEL BLOCKING ANTIEPILEPTIC DRUG IN SUBJECTS WITH UNCONTROLLED PARTIAL-ONSET SEIZURES
- Conditions
- epilepsypartial onset seizures10039911
- Registration Number
- NL-OMON37460
- Lead Sponsor
- CB Biosciences Inc
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Withdrawn
- Sex
- Not specified
- Target Recruitment
- 25
1. An Institutional Review Board (IRB)/Independent Ethics Committee (IEC) approved
written Informed Consent form is signed and dated by the subject or legal representative.
2. Subject/legal representative is considered reliable and capable of adhering to the protocol
(eg, able to understand and complete diaries), visit schedule, and medication intake
according to the judgment of the investigator.
3. Subject is male or female, at least 18 years of age.
4. Subject has a diagnosis of epilepsy with partial-onset seizures according to the
International Classification of Epileptic Seizures (1981).
5. Subject is taking LEV in combination with 1 SCB-AED (defined as carbamazepine,
lamotrigine, oxcarbazepine, phenytoin, or eslicarbazepine) as adjunctive treatment for
epilepsy.
6. The minimum required seizure frequency during the 8-week Retrospective Seizure
Baseline is on average >=2 partial-onset seizures (IA, IB, or IC) per 28 days (based on
investigator assessment of subject report) with at least 1 seizure per 4-week period within
the 8-week Retrospective Seizure Baseline. Additionally, subjects must experience at
least 1 seizure during the 4-week Prospective Seizure Baseline. In the case of simple
partial seizures, only those with motor signs (IA1) will be counted towards meeting this
inclusion criterion.
7. Subject has been maintained on a stable dose of LEV and a SCB-AED for at least
4-weeks prior to the Screening Visit (Visit 1) and during the 4-week Prospective Seizure
Baseline, with or without additional concurrent stable VNS. The VNS must have been in
place for at least 6 months prior to the Screening Visit (Visit 1) with constant settings for
at least 4-weeks prior to the Screening Visit (Visit 1) and throughout the duration of the
study.
1. Subject has previously participated in this study or subject has previously been exposed to
LCM.
2. Subject has participated in another study of an investigational medicinal product (IMP) or
an experimental medical device within the last 2 months or is currently participating in
another study of an IMP or a medical device.
3. Female subject who is pregnant or nursing, and/or a woman of childbearing potential who
is not surgically sterile, 2 years postmenopausal or does not practice 2 combined methods
of contraception, unless sexually abstinent, for the duration of the study. Male subject
who does not agree to practice 2 combined methods of contraception (eg, condom,
spermicide), unless sexually abstinent, for the duration of the study.
4. Subject has a history of chronic alcohol or drug abuse within the last 2 years.
5. Subject has a seizure disorder characterized primarily by isolated auras (ie, simple partial
seizures without observable motor signs).
6. Subject has a history of primary generalized seizures.
7. Subject has a history of status epilepticus within the 12-month period prior to Visit 1.
8. Subject has seizures that are uncountable due to clustering (ie, an episode lasting less than
30 minutes in which several seizures occur with such frequency that the initiation and
completion of each individual seizure cannot be distinguished) during the 8-week
Retrospective Seizure Baseline and during the 4-week Prospective Seizure Baseline.
9. Subject has a current or previous diagnosis of pseudoseizures, conversion disorders, or
other nonepileptic ictal events which could be confused with seizures.
10. Subject has any medical or psychiatric condition that, in the opinion of the investigator,
could jeopardize the subject*s health or would compromise the subject*s ability to
participate in this study.
11. Subject has a lifetime history of suicide attempt (including an active attempt, interrupted
attempt, or aborted attempt), or has suicidal ideation in the past 6 months as indicated by
a positive response (*Yes*) to either Question 4 or Question 5 of the Columbia-Suicide
Severity Rating Scale (C-SSRS) at Screening.
12. Subject has a known hypersensitivity to any components of LCM tablets.
13. Subject has taken an AED other than the current SCB-AED and LEV during the 4-weeks
prior to the Screening Visit (Visit 1), excepting 1-time use of benzodiazepines as rescue
medication (less than or equal to 3 doses within 24 hours).
14. Subject has a medical condition that could reasonably be expected to interfere with drug
absorption, distribution, metabolism, or excretion.
15. Subject has an acute or sub-acute progressive central nervous system disease.
16. Subject has a known history of severe anaphylactic reaction or serious blood dyscrasias.
17. Subject has alanine aminotransferase (ALT), aspartate aminotransferase (AST), or total
bilirubin levels >=2x the upper limit of normal (ULN) or has alkaline phosphatase levels
>=3xULN at Visit 1.
18. Subject has impaired renal function (ie, creatinine clearance [CLcr] is lower than
30mL/min) at Visit 1. Creatinine clearance will be estimated as follows:
Adult males: CLcr = (140-age) x weight in kg/(72 x serum creatinine in mg/dL)
Adult females: CLcr = [(140-age) x weight in kg/(72 x serum creatinine in mg/dL)] x 0.85
19. Subject
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method <p>There are 2 analysis sets defined for this study; the safety set (SS) is all<br /><br>subjects who received at least 1 dose of LCM; and the full analysis set (FAS)<br /><br>is all subjects in the SS who have at least 1 seizure diary data assessment<br /><br>during LCM treatment.<br /><br><br /><br>The primary efficacy variable to support the objective of evaluating overall<br /><br>effectiveness is the retention rate at the end the 21-week Treatment Period </p><br>
- Secondary Outcome Measures
Name Time Method