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Completed

NCT Number: NCT00280059

Study Of The Safety And Efficacy Of Lyrica In The Treatment Of Newly Diagnosed Partial Epilepsy

The purpose of this study is to assess whether Lyrica is a safe and effective treatment for partial epilepsy in comparison with an established treatment, Lamictal.

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Key information

Age range

16 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Pfizer Investigational Site, Bruges, Belgium

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients must be diagnosed with partial epilepsy and have experienced at least 2 partial seizures (simple partial, complex partial or partial seizure with secondary generalization) in the past year with one in the past 6 months.

Exclusion criteria

  • Treatable causes of seizures, for example identified etiologies including metabolic, neoplastic or active infectious origin.
  • Primary generalized seizures.

Treatment and study plan

Pregabalin

Drug

dose 150-600 mg/day given BID

Lamotrigine

Drug

dose 100-500 mg/day given BID

Primary outcomes

  1. Percentage of Seizure-free Participants (Responders) During Efficacy Assessment Phase

    Time frame: Week 5 up to Week 56

    Responders = participants who achieved any 6 consecutive months (>182 days) of seizure-freedom (absence of partial seizures, generalized seizures and unclassified epileptic seizures) during the 52 week efficacy assessment phase.

Secondary outcomes

  1. Time to 6 Consecutive Months of Seizure-freedom After 4-week Dose Escalation Phase: All Seizures

    Time frame: Week 4 up to Week 56

    Time in days, from first day of study medication to the first 6 months of seizure freedom after Day 28. Participants who did not achieve 6 months seizure freedom after Day 28 were censored from analysis.

  2. Exit Due to Adverse Events During the Double-blind Treatment Phase (Including Dose Escalation Phase)

    Time frame: Week 0 to Week 56

    Number of participants who exited the study due to adverse events during the double-blind treatment period. Time in days, from first day of study treatment to day of exit from the study due to an adverse event (ie, last day on study medication) during the double blind treatment period (including dose escalation phase) was inestimable. Observations with other reasons for exiting or participants who did not exit the study were right censored as of the last day on study medication.

  3. Exit for Any Reason During the Double-blind Treatment Phase (Including Dose Escalation Phase)

    Time frame: Week 0 to Week 56

    Number of participants who exited the study for any reason during the double blind treatment phase. Time in days, from first day of study treatment to day of exit from the study due to any reason (ie, last day on study medication) was inestimable. Participants who did not exit the study were right censored as of the last day on study medication.

  4. Exit Due to Lack of Efficacy After 4-week Dose Escalation Phase

    Time frame: Week 4 up to Week 56

    Number of participants who exited the study due to lack of efficacy after the 4-week dose escalation phase. Time in days, from first day of study treatment to day of exit due to lack of efficacy after Day 28 of the escalation phase (ie, last day on study medication) was inestimable. Participants who did not exit or exited for a different reason were right censored as of the last day on study medication.

  5. Exit Due to Any Reason After 4-week Dose Escalation Phase

    Time frame: Week 4 up to Week 56

    Number of participants who exited the study due to any reason after the 4-week dose escalation phase. Time in days, from first day of study treatment to day of exit after Day 28 of the study due to any reason (ie, last day on study medication) was inestimable. Participants who did not exit or did not reach this phase were right censored as of the last day on study medication.

  6. Time to First Seizure After the 4-Week Dose Escalation Phase

    Time frame: Week 4 up to Week 56

    Time in days, from first day of study treatment to the day of first seizure after Day 28 of the escalation phase (ie, last day on study medication). Participants who did not reach this phase or who did not have a seizure after Day 28 were right censored from the analysis as of the last day on study medication.

  7. Median Monthy Seizure Frequency: All Partial Seizures

    Time frame: Baseline up to Week 60

    All partial seizures include complex partial seizures, simple partial seizures, and partial seizures evolving to secondarily generalized seizures. Seizure frequency based on 28-day seizure rate: number (#) of seizures in period (month) divided by # days in period minus # of missing diary days in period * 28. Month of time = number of months after Week 4 (Dose Escalation).

  8. Mean Monthy Seizure Frequency: All Partial Seizures

    Time frame: Baseline up to Week 60

    All partial seizures include complex partial seizures, simple partial seizures, and partial seizures evolving to secondarily generalized seizures. Seizure frequency based on 28-day seizure rate: number (#) of seizures in period (month) divided by # days in period minus # of missing diary days in period * 28. Month of time = number of months after Week 4 (Dose Escalation).

  9. Median Monthy Seizure Frequency: All Seizures

    Time frame: Baseline up to Week 60

    Seizure frequency based on 28-day seizure rate: number (#) of seizures in period (month) divided by # days in period minus # of missing diary days in period * 28. Month of time = number of months after Week 4 (Dose Escalation).

  10. Mean Monthy Seizure Frequency: All Seizures

    Time frame: Baseline up to Week 60

    Seizure frequency based on 28-day seizure rate: number (#) of seizures in period (month) divided by # days in period minus # of missing diary days in period * 28. Month of time = number of months after Week 4 (Dose Escalation).

  11. Median Monthy Seizure Frequency of Responders for the Months After Achieving 6 Consecutive Months of Seizure Freedom: All Partial Seizures

    Time frame: Month 1 through Month 9 (after 6 months seizure freedom achieved)

    All partial seizures include complex partial seizures, simple partial seizures, and partial seizures evolving to secondarily generalized seizures. Seizure frequency based on 28-day seizure rate: number (#) of seizures in period (month) divided by # days in period minus # of missing diary days in period * 28. Responder = participant who achieved at least 6 months of seizure freedom after Week 4 and up to Week 56. Monthly seizure frequency measured from day of achievement of 6 months of seizure freedom.

  12. Mean Monthy Seizure Frequency of Responders for the Months After Achieving 6 Consecutive Months of Seizure Freedom: All Partial Seizures

    Time frame: Month 1 through Month 9 (after 6 months seizure freedom achieved)

    All partial seizures include complex partial seizures, simple partial seizures, and partial seizures evolving to secondarily generalized seizures. Seizure frequency based on 28-day seizure rate: number (#) of seizures in period (month) divided by # days in period minus # of missing diary days in period * 28. Responder = participant who achieved at least 6 months of seizure freedom after Week 4 and up to Week 56. Monthly seizure frequency measured from day of achievement of 6 months of seizure freedom.

  13. Median Monthy Seizure Frequency of Responders for the Months After Achieving 6 Consecutive Months of Seizure Freedom: All Seizures

    Time frame: Month 1 through Month 9 (after 6 months seizure freedom achieved)

    Seizure frequency based on 28-day seizure rate: number (#) of seizures in period (month) divided by # days in period minus # of missing diary days in period * 28. Responder = participant who achieved at least 6 months of seizure freedom after Week 4 and up to Week 56. Monthly seizure frequency measured from day of achievement of 6 months of seizure freedom.

  14. Mean Monthy Seizure Frequency of Responders for the Months After Achieving 6 Consecutive Months of Seizure Freedom: All Seizures

    Time frame: Month 1 through Month 9 (after 6 months seizure freedom achieved)

    Seizure frequency based on 28-day seizure rate: number (#) of seizures in period (month) divided by # days in period minus # of missing diary days in period * 28. Responder = participant who achieved at least 6 months of seizure freedom after Week 4 and up to Week 56. Monthly seizure frequency measured from day of achievement of 6 months of seizure freedom.

  15. Percentage of Participants Who Achieved at Least 6 Consecutive Months of Seizure Freedom (Responders) by Final Dosage Levels and Treatment Group

    Time frame: Week 5 up to Week 56

    Responder = participant who achieved at least 6-months of seizure freedom (all seizures) after Week 4, and up to Week 56. Dose Level defined as last total-daily-dose received after Week 4, and up to Week 56.

  16. Change From Baseline to Week 56 in Hospital Anxiety and Depression Scale (HADS)

    Time frame: Baseline to Week 56

    Participant rated questionnaire with 2 subscales. HADS-A assesses state of generalized anxiety (anxious mood, restlessness, anxious thoughts, panic attacks); HADS-D assesses state of lost interest and diminished pleasure response (lowering of hedonic tone). Each subscale comprised of 7 items; range: 0 (no presence of anxiety or depression) to 3 (severe feeling of anxiety or depression). Total score 0 to 21 for each subscale; higher score indicates greater severity of symptoms. Scores relative to start of randomized treatment.

  17. Medical Outcomes Study Sleep Scale (MOS-SS): Optimal Sleep Subscale

    Time frame: Week 8, Week 32, and Week 56

    MOS-SS: subject-rated instrument used to assess the key constructs of sleep over the past week; assesses sleep quantity and quality and is comprised 12 items yielding 7 subscale scores and 2 composite index scores. Optimal Sleep subscale is derived from sleep quantity average hours of sleep each night during the past week. Number of subjects with response Optimal if sleep quantity was 7 or 8 hours of sleep per night, and Non-optimal if average sleep was less than or greater than 7 to 8 hours per night. Analysis assesses the MOS-Sleep scale relative to the start of randomized treatment.

Sponsors and collaborators

Lead sponsor

Pfizer's Upjohn has merged with Mylan to form Viatris Inc.

Industry

Registry information

Official study title

A Randomized, Comparative, Double-Blind, Parallel-Group, Multicenter, Monotherapy, Study Of Pregabalin (Lyrica) And Lamotrigine (Lamictal) In Patients With Newly Diagnosed Partial Seizures

Important dates

Study start
2006
Primary completion
2009
Study completion
2010
First posted
Jan 20, 2006
Registry last updated
Jan 28, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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