A Study to Assess Tolerability and Efficacy of Topiramate Monotherapy in Recently Diagnosed Patients With Epilepsy

October 24, 2024 updated by: Janssen Research & Development, LLC

Open Flexible Dose Optimisation Trial Assessing Tolerability and Efficacy of Topiramate Monotherapy in Recently Diagnosed Patients With Epilepsy Who Are Treatment Naive or Have Failed One Anti-Epileptic Drug Treatment in Monotherapy

The purpose of this dose optimization study is to assess tolerability and efficacy of topiramate monotherapy in recently diagnosed patients with epilepsy who are treatment naive or have failed one anti-epileptic drug (AED) treatment in monotherapy.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This is an open label (all people know the identity of the intervention), dose optimization trial to assess the tolerability and efficacy of topiramate as monotherapy in recently (within 5 years) diagnosed patients with epilepsy. Treatment naive patients (patients who have never received the treatment before) and patients who failed on their first AED in monotherapy are allowed. Failure is defined as a lack of efficacy and/or tolerability of that AED and the reason for failure is recorded by the physician. A lack of efficacy is characterized when the patient has been treated with AED at target dose but the patient still has seizure. Topiramate will first be titrated up to an initial target dose that will be reached after 4-6 weeks. Further dose titration is guided by the clinical response of the individual patient, but the dose may not exceed a maximum of 400mg/day [9mg/kg/day for children]. If the patient uses an AED at entry, the AED will be fully tapered off over a period of 3 weeks, starting at the beginning of week 2, in order to have all patients on topiramate monotherapy at visit 3. Tapering the AED off may, however, extend this 3-week period if clinically indicated. Visits will be performed at baseline and after 2, 4, 8, 12, 16 weeks. The total duration for each patient in the study will be 4 months.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
139

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Vietnam
      • Hanoi, Vietnam
      • Hochiminh, Vietnam

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

5 years to 18 years (Child, Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Has been diagnosed with epilepsy within the past 5 years with Primary Generalized Tonic-Clonic (PGTC) seizures as well as partial onset seizures with or without secondary generalization
  • Therapy naive, or being treated with their first anti-epileptic drug (AED) in monotherapy that fails in efficacy, tolerability, or both, and not in need of a combination AED therapy
  • Informed Assent in children at least 7 years and older

Exclusion Criteria:

  • Have pseudoseizures or the treatable cause of the seizures (eg, metabolic disorder, toxic exposure, active infection or neoplasia)
  • Has any clinically relevant progressive or serious illness (eg, liver or renal insufficiency, significant cardiac, vascular, pulmonary, gastrointestinal, endocrine, neurological, psychiatric, or metabolic disturbance)
  • Pregnant or breast-feeding
  • Has a history or suspicion of alcohol or drug abuse
  • Must have on current treatment with furosemide, hydrochlorothiazide, monoamine oxidase inhibitors

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Topiramate
For children: Children will start on topiramate with a dosage of 0.5mg/kg in the evening, followed by 0.5mg/kg/day weekly increments until an initial target dose of 3mg/kg/day is reached. The total daily topiramate dose for children may, not exceed 9mg/kg/day. For adult patients: Adult patients start on topiramate with a dosage of 25mg/day in the evening, followed by weekly increments of 25 mg/day until an initial target dose of 100mg/day is reached. The dose of topiramate may be increased to the optimal dose with weekly increments of 0.5mg/kg/day and of 25 mg/day for children and adults, respectively at the discretion of the investigator.
Drug: Topiramate
The patients will receive topiramate tablet twice daily orally up to 16 weeks.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Percentage of Participants Wiith Reduction in Number of Seizures Greater Than or Equal to 50%, During the Last 4 Months of Treatment
Time Frame: Month 1, Month 3 and Month 4
Month 1, Month 3 and Month 4
Percentage of Participants Wiith Reduction in Number of Seizures Greater Than or Equal to 75%, During the Last 4 Months of Treatment
Time Frame: Month 1, Month 3 and Month 4
Month 1, Month 3 and Month 4
Percentage of Seizure Free Participants During the Last 4 Months of Treatment
Time Frame: Month 1, Month 3 and Month 4
Month 1, Month 3 and Month 4

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants With Greater Than or Equal to 50%, 75% and 100% Reduction in Seizures as Per the Seizure Types (Partial, Secondarily Generalized and Generalized Tonic and Clonic Siezures) After 16 Weeks
Time Frame: Month 1, Month 3 and Month 4
Month 1, Month 3 and Month 4
Percentage of Participants With Greater Than or Equal to 50%, 75% and 100% Reduction in Seizures as Per the Seizure Frequency (Less Than 4, 4 to 10 and Greater Than 10) After 16 Weeks
Time Frame: Month 4
Month 4
General Clinical Assessment Before and After Treatment
Time Frame: Baseline (Day 0) and Month 4
The general clinical assessment is measured by clinical global impression scale. The scale is used to grade the participants as very good, good, fairly good, medium and Poor before (Visit 1) and after treatment (Visit 6).
Baseline (Day 0) and Month 4
Percentage of Participants With Greater Than or Equal to 50%, 75% and 100% Reduction in Seizures With or Without Previous Treatment
Time Frame: Month 4
Month 4

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Janssen Research & Development, LLC

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Janssen-Cilag VIETNAM Clinical Trial, Janssen-Cilag VIETNAM

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 2, 2008

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 19, 2010

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 19, 2010

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 23, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 17, 2012

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 21, 2012

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 19, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 24, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CR017830
  • TOPMATEPY4049 (Other Identifier: Janssen-Cilag VIETNAM)
  • TOP-VN -0107 (Other Identifier: Janssen-Cilag VIETNAM)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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