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A global study testing efficacy and safety of Phenobarbital in patients with partial seizures

An international, double-blind, parallel-group, placebo-controlled, randomized study: evaluation of the efficacy and safety of phenobarbital as adjunctive therapy in participants (≥ 17 to 70 years old) with partial onset seizures. - NIL

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2011/05/001756
Enrollment
345
Registered
2011-05-23
Start date
Unknown
Completion date
Unknown
Last updated
2021-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: null- Simple & Complex Partial Seizure with or without secondary generalization

Interventions

Intervention1: Tab. Phenobarbital: Tab. Phenobarbital 15 mg (OD) with placebo (during the titration period) Tab. Phenobarbital 30 mg (OD) with placebo (during the titration period. Tab. Phenobarbita

Sponsors

Zaidoon A AlZubaidy Vice President Operations
Lead Sponsor
Max Neeman International
Collaborator

Eligibility

Inclusion criteria

Inclusion criteria: Inclusion Criteria: 1) Participants from 17 to 70 years (inclusive); 2) Participants with a history of Type-1 partial onset seizures (complex or simple[with motor symptoms only]; according to ILAE classification; 1981)whether or not secondarily generalized; 3) Participants must have had, within the last 10 years, one electroencephalogram (EEG) or video EEG and/or one brain magnetic resonance imaging (MRI) or computerized tomography (CT) with results consistent with a diagnosis of partial-onset seizures. If these have not been performed in the last 10 years, or if the records of these are not available, an EEG and CT or MRI will be performed as part of the screening procedures. 4) Participants having at least eight Type-1 partial onset seizures whether or not secondarily generalized, during the 8-week Baseline Period; 5) Participants being uncontrolled while treated by 1 to 3 permitted concomitant AED(s) and/or Vagus Nerve Stimulation (if participant is treated with VNS for at least 6 months prior to the start of the study, this will count as one of the three permitted concomitant treatments); 6) Participant has been on a stable dose of their current anti-epileptic treatment regime for at least 1 month prior to screening and VNS settings must have been unchanged for at least 1 month

Exclusion criteria

Exclusion criteria: Exclusion Criteria 1)Currently taking phenobarbital or primidone (accepted if they have been off for a month prior to study screening); 2) Currently taking felbamate or vigabatrin. All prescription medication excluded except those approved in a similar product in the United States. 3) History of prior allergic reaction to phenobarbital; 4) History or presence of seizures occurring only in clusters (too frequently or indistinctly separated to be reliably counted) before Visit 3; 5) History or presence of status epilepticus during the year preceding Visit 1 or during baseline; 6) History of psychogenic seizures; 7)Participant taking any drug with possible relevant CNS effects except if stable from at least 1 month before Visit 1 and expected to be kept stable during the Treatment Period; 8) History of cerebrovascular accident (CVA), including transient ischemic attack (TIA), in the last 6 months; 9) Presence of any sign (clinical or imaging techniques) suggesting rapidly progressing (ie, not expected to stay stable during study participation) brain disorder or brain tumor; 10) Presence of unstable arteriovenous malformations, meningiomas or other benign tumors. Stable lesions such as these may be acceptable; 11) History of porphyria; 12) Presence of clinically significant findings on physical examination, vital signs, electrocardiogram, or safety laboratory assessments, including, but not limited to, either renal or hepatic insufficiency; 13) History of alcohol or drug abuse within the year prior to the screening visit as defined by DSM IV TR creiteria; 14) Participant who is known to be non-compliant with their current regime of anti-epileptic drugs; 15) Participant is a male or female of child-bearing potential who refuses to use an acceptable form of contraception during the study, or 16) Female participant who is pregnant or lactating or participant intends to become pregnant during the study. (Females who are surgically sterilized or have been post menopausal for at least 2 years are not considered to be of child bearing potential). For the purposes of this study, acceptable forms of birth control include, double barrier methods (e.g. use of condoms and spermicide), intrauterine device, and abstinence with second acceptable method should participant become sexually active; or 17) Participant has taken part in any trial with any investigational device or product within the 2 months prior to the screening visit

Design outcomes

Primary

MeasureTime frame
The primary efficacy variable is the partial onset seizure (Type I) frequency per week over the Treatment Period, excluding up- and down-titration periodsTimepoint: 8 Weeks

Secondary

MeasureTime frame
a)Seizure freedom rate, b) % reduction for partial onset seizure (Type I) freq. /week from baseline to Treatment Period c)Responder rate (partial onset seizures (type I) over Treatment Period, d) Categorized % reduction from baseline in seizure frequency for partial onset seizures (Type I) over Treatment Period. The categories include: -25%, -25% - 25%, 25% - 50%, 50% - 75%, 75% - 100%, and 100%, e) Reduction of seizure frequency (Type I) from baseline to Treatment PeriodTimepoint: 8 weeks

Countries

Bulgaria, India, United States of America

Contacts

Public ContactDr Shariq Anwar

Max Neeman International Ltd.

atulg@neemanasia.com91-9717287654

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026