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Epilepsies, PartialPhase 1/2NCT00437281

Safety, Tolerability, and Pharmacokinetic Study of Pregabalin in Pediatric Patients With Partial Onset Seizures

A Phase 1/2 study testing Pregabalin in people with Epilepsies, Partial, run by Pfizer's Upjohn has merged with Mylan to form Viatris Inc. at 18 sites in 3 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of the study is to evaluate the safety, tolerability, and pharmacokinetics of multiple doses of pregabalin in pediatric patients with partial onset seizures that are incompletely controlled on their current medications. Read more about this study

Who is it for?
Ages 1 month to 16 years
Conditions the study is for
Epilepsies, Partial
What is being tested?
Pregabalin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
65 participants
Where
18 sitesin 3 countries
Study dates
Apr 2007to Nov 2012
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 1 month to 16 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Partial onset seizures, incompletely controlled on 1-3 medications
  • At least 1 seizure per 28 days, on average

Who cannot join

  • Primary generalized seizures
  • Progressive CNS pathology

Trial locations and contacts

18 sites in 3 countries.

18 sites in 3 countries

United States15 sites
  • Pfizer Investigational Site

    Buffalo, New York, 14222

  • Pfizer Investigational Site

    Durham, North Carolina, 27710

  • Pfizer Investigational Site

    Gulf Breeze, Florida, 32561

  • Pfizer Investigational Site

    Houston, Texas, 77030

  • Pfizer Investigational Site

    Jonesboro, Arkansas, 72401

  • Pfizer Investigational Site

    Little Rock, Arkansas, 72205

  • Pfizer Investigational Site

    Mobile, Alabama, 36604

  • Pfizer Investigational Site

    Mobile, Alabama, 36693

  • Pfizer Investigational Site

    Pensacola, Florida, 32504

  • Pfizer Investigational Site

    Phoenix, Arizona, 85016

  • Pfizer Investigational Site

    San Antonio, Texas, 78258

  • Pfizer Investigational Site

    San Francisco, California, 94143

  • Pfizer Investigational Site

    Springfield, Missouri, 65804

  • Pfizer Investigational Site

    Tampa, Florida, 33603

  • Pfizer Investigational Site

    Tampa, Florida, 33609

Other trials in United States

Mexico2 sites
  • Pfizer Investigational Site

    Guadalajara, Jalisco, 44280

  • Pfizer Investigational Site

    Mexico City, Mexico City, 06720

Other trials in Mexico

South Korea1 site
  • Pfizer Investigational Site

    Seoul, 120-752

Other trials in South Korea

About this study

Official title: A Placebo-Controlled, Escalating Dose, Multiple Dose Study To Evaluate The Safety, Tolerability And Pharmacokinetics Of Pregabalin In Pediatric Patients With Partial Onset Seizures

The purpose of the study is to evaluate the safety, tolerability, and pharmacokinetics of multiple doses of pregabalin in pediatric patients with partial onset seizures that are incompletely controlled on their current medications.

Being tested
Placebo, Pregabalin
Keywords
Partial-onset seizures; epilepsy; pediatric; pregabalin; safety; tolerability; pharmacokinetics
Medical subject headings
Epilepsies, Partial, Epilepsy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PlaceboDrug

    Placebo

  • PregabalinDrug

    Orally-administered pregabalin

Study groups in NCT00437281
Study groupRoleWhat they receive
PlaceboPlacebo comparatorNot described
Receives: Drug: Placebo
PregabalinExperimentalNot described
Receives: Drug: Pregabalin

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Treatment-Emergent Adverse Events (AEs) by Severity: Double-blind Treatment

    Analysis for severity of AEs was performed separately for double-blind and open-label treatment. AE = any untoward medical occurrence in participant who received study drug without regard to possibility of causal relationship. AEs were classified as mild, moderate and severe based on severity assessment: Mild = no interference with participant's usual function; Moderate = some interference with participant's usual function; Severe = significant interference with participant's usual function. Treatment-emergent events for double-blind treatment included events between baseline and Day 7 that were absent before treatment or that worsened relative to pretreatment state. Participants may experience more than 1 AE.

    Measured: Baseline to Day 7

  2. Number of Treatment-Emergent Adverse Events (AEs) by Severity: Open-label Treatment

    Analysis for severity of AEs was performed separately for double-blind and open-label treatment. AE = any untoward medical occurrence in participant who received study drug without regard to possibility of causal relationship. AEs were classified as mild, moderate and severe based on severity assessment: Mild = no interference with participant's usual function; Moderate = some interference with participant's usual function; Severe = significant interference with participant's usual function. Treatment-emergent events for open-label treatment included events between Day 8 and 28 days after the open-label dose that were absent before treatment or that worsened relative to pretreatment state. Participants may experience more than 1 AE.

    Measured: Day 8 up to 28 days after open-label dose of study medication

Secondary outcomes (14)
  1. Number of Participants With Clinically Significant Change in Physical and Neurological Findings

    Full physical examination included examination of the abdomen, breasts, lungs, lymph nodes, mouth, genitourinary, musculoskeletal and neurological systems, skin, extremities, head, heart, ears, eyes, neck, nose, ocular fundi, throat and thyroid gland. The neurological exam was performed by a pediatric neurologist or qualified investigator.

    Measured: Baseline up to 7 days post-last dose of study medication

  2. 28-Day Seizure Frequency Rate

    Seizure frequency was reported by participant's parent or guardian from randomization to 7 days post-last dose of study medication. 28-day seizure frequency rate = (number of seizures in observation period/number of days in observation period)*28.

    Measured: Baseline up to 7 days post-last dose of study medication

  3. Area Under the Curve From Time Zero to End of Dosing Interval (AUCtau): Multiple-Dose Analysis

    Area under the curve from time zero to the end of dosing interval (AUCtau), where dosing interval was 12 hours, for participants who received pregabalin from Day 1 to Day 8 morning is reported (multiple-dose participants). Results are normalized to individual participant's Day 8 dose.

    Measured: Pre-dose, 0.5, 1, 2, 4, 8, 12 hours post-dose on Day 8

  4. Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)]: Single-Dose Analysis

    AUC (0 - ∞)= Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0 - ∞). It is obtained from AUC (0 - t) plus AUC (t - ∞). AUC (0 - ∞) for participants who received matching placebo from Day 1 to Day 7 and pregabalin on Day 8 morning is reported (single-dose participants). Results are normalized to individual participant's Day 8 dose.

    Measured: Pre-dose, 0.5, 1, 2, 4, 8, 12, 24 hours post-dose on Day 8

  5. Maximum Observed Plasma Concentration (Cmax): Multiple-Dose Analysis

    Cmax for participants who received pregabalin from Day 1 to Day 8 morning is reported (multiple-dose participants). Results are normalized to individual participant's Day 8 dose.

    Measured: Pre-dose, 0.5, 1, 2, 4, 8, 12, 24 hours post-dose on Day 8

  6. Maximum Observed Plasma Concentration (Cmax): Single-Dose Analysis

    Cmax for participants who received matching placebo from Day 1 to Day 7 and pregabalin on Day 8 morning is reported (single-dose participants). Results are normalized to individual participant's Day 8 dose.

    Measured: Pre-dose, 0.5, 1, 2, 4, 8, 12, 24 hours post-dose on Day 8

  7. Time to Reach Maximum Observed Plasma Concentration (Tmax): Multiple-Dose Analysis

    Tmax for participants who received pregabalin from Day 1 to Day 8 morning is reported (multiple-dose participants).

    Measured: Pre-dose, 0.5, 1, 2, 4, 8, 12, 24 hours post-dose on Day 8

  8. Time to Reach Maximum Observed Plasma Concentration (Tmax): Single-Dose Analysis

    Tmax for participants who received matching placebo from Day 1 to Day 7 and pregabalin on Day 8 morning is reported (single-dose participants).

    Measured: Pre-dose, 0.5, 1, 2, 4, 8, 12, 24 hours post-dose on Day 8

  9. Plasma Decay Half-Life (t1/2): Multiple-Dose Analysis

    Plasma decay half-life is the time measured for the plasma concentration to decrease by one half. t1/2 for participants who received pregabalin from Day 1 to Day 8 morning is reported (multiple-dose participants).

    Measured: Pre-dose, 0.5, 1, 2, 4, 8, 12, 24 hours post-dose on Day 8

  10. Plasma Decay Half-Life (t1/2): Single-Dose Analysis

    Plasma decay half-life is the time measured for the plasma concentration to decrease by one half. t1/2 for participants who received matching placebo from Day 1 to Day 7 and pregabalin on Day 8 morning is reported (single-dose participants).

    Measured: Pre-dose, 0.5, 1, 2, 4, 8, 12, 24 hours post-dose on Day 8

  11. Apparent Oral Clearance (CL/F): Multiple-Dose Analysis

    Clearance (CL) of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed (F). Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the blood. CL/F for participants who received pregabalin from Day 1 to Day 8 morning is reported (multiple-dose participants).

    Measured: Pre-dose, 0.5, 1, 2, 4, 8, 12, 24 hours post-dose on Day 8

  12. Apparent Oral Clearance (CL/F): Single-Dose Analysis

    Clearance (CL) of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed (F). Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the blood. CL/F for participants who received matching placebo from Day 1 to Day 7 and pregabalin on Day 8 morning is reported (single-dose participants).

    Measured: Pre-dose, 0.5, 1, 2, 4, 8, 12, 24 hours post-dose on Day 8

  13. Renal Clearance (CLr): Multiple-Dose Analysis

    Renal clearance is the volume of plasma from which the drug is completely removed by the kidney in a given amount of time. CLr for participants who received pregabalin from Day 1 to Day 8 morning is reported (multiple-dose participants).

    Measured: 0 to 12 hours post-dose, 12 to 24 hours post-dose on Day 8

  14. Renal Clearance (CLr): Single-Dose Analysis

    Renal clearance is the volume of plasma from which the drug is completely removed by the kidney in a given amount of time. CLr for participants who received matching placebo from Day 1 to Day 7 and pregabalin on Day 8 morning was to be reported (single-dose participants).

    Measured: 0 to 12 hours post-dose, 12 to 24 hours post-dose on Day 8

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Feb 2007 (estimated)
  2. Study startApr 2007
  3. Primary completionNov 2012
  4. Study completionNov 2012

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
65 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00437281
Sponsor's protocol ID
A0081074
Status last verified
Jan 2014
First submitted
16 Feb 2007
Last updated
11 Feb 2021
Data monitoring committee
No

Publications

  • Mann D, Liu J, Chew ML, Bockbrader H, Alvey CW, Zegarac E, Pellock J, Pitman VW. Safety, tolerability, and pharmacokinetics of pregabalin in children with refractory partial seizures: a phase 1, randomized controlled study. Epilepsia. 2014 Dec;55(12):1934-43. doi: 10.1111/epi.12830. Epub 2014 Nov 6.

    PubMed 25377429

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Pregabalin in people with Epilepsies, Partial, run by Pfizer's Upjohn has merged with Mylan to form Viatris Inc. at 18 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 11 Feb 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 18 sites in United States, Mexico, South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 17 Mar 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Treatment-Emergent Adverse Events (AEs) by Severity: Double-blind Treatment (time frame: Baseline to Day 7). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00437281, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Feb 2021.

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