NCT00537238

Brief Summary

This study will compare pregabalin and levetiracetam in patients with partial seizures. It will also evaluate the safety and tolerability of pregabalin and levetiracetam in these patients.

Trial Health

98
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
509

participants targeted

Target at P50-P75 for phase_3

Timeline
Completed

Started Oct 2007

Longer than P75 for phase_3

Geographic Reach
20 countries

70 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 27, 2007

Completed
4 days until next milestone

First Posted

Study publicly available on registry

October 1, 2007

Completed
Same day until next milestone

Study Start

First participant enrolled

October 1, 2007

Completed
4.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2012

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

July 11, 2013

Completed
Last Updated

January 28, 2021

Status Verified

May 1, 2013

Enrollment Period

4.6 years

First QC Date

September 27, 2007

Results QC Date

May 21, 2013

Last Update Submit

January 26, 2021

Conditions

Keywords

Epilepsies partialPartial Seizure DisorderComplex Partial Seizure DisorderEpilepsy

Outcome Measures

Primary Outcomes (1)

  • Proportion of Participants With Response to Treatment

    Participants who had at least 50% reduction in 28-day seizure rate from baseline to the end of the maintenance phase were considered as responders. The 28-day seizure rate was calculated as number of partial seizures in the period divided by difference of number of days in the period and number of missing diary day entries in the period, multiplied by 28.

    Baseline up to Week 16

Secondary Outcomes (7)

  • Percent Change From Baseline in 28 Day Seizure Frequency at Week 16

    Baseline, Week 16

  • Change From Baseline in the Proportion of 28-day Secondarily Generalized Tonic-clonic (SGTC) Seizure Rate to 28-day All Partial Seizure Rate at Week 16

    Baseline, Week 16

  • Percentage of Participants Without Seizures

    Baseline up to Week 16

  • Change From Baseline in Brief Psychiatric Rating Scale - Anchored (BPRS-A) Total and Core Score at Week 7, 10, 13, 16 and Follow-up

    Baseline, Week 7, 10, 13, 16 and Follow-up (Day 7 of taper phase)

  • Hospital Anxiety and Depression Scale (HADS) Score

    Baseline, Week 16

  • +2 more secondary outcomes

Study Arms (2)

B

ACTIVE COMPARATOR
Drug: pregabalin

A

ACTIVE COMPARATOR
Drug: levetiracetam

Interventions

300, 450, 600 mg/day administered orally, BID until seizure control/improvement or intolerable side effects

B

1000, 2000, 3000 mg/day administered orally, BID until seizure control/improvement or intolerable side effects

A

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Subjects (male or female) must be \> 18 years of age, with a diagnosis of epilepsy with partial seizures, as defined in the International League Against Epilepsy (ILAE) classification of seizures.
  • Partial seizures may be simple or complex, with or without secondary tonic-clonic generalization.
  • Subjects must be have been diagnosed with epilepsy for at least 2 years, and must have been unresponsive to treatment with at least two but no more than five prior antiepileptic drugs (AEDs), and at the time of study enrollment are on stable dosages of 1 or 2 standard AEDs.

You may not qualify if:

  • Females who are pregnant, breastfeeding, or intend to become pregnant during the course of the trial will be excluded
  • Subjects with other neurologic illness that could impair endpoint assessment, or subjects with Lennox-Gastaut syndrome, absence seizures, status epileptics within the 12 months prior to trial entry, or with seizures due to an underlying medical illness or metabolic syndrome, will be excluded.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (72)

Pfizer Investigational Site

Duffel, B-2570, Belgium

Location

Pfizer Investigational Site

Yvoir, B-5530, Belgium

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Pfizer Investigational Site

Kyustendil, Bulgaria

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Pfizer Investigational Site

Pernik, 2300, Bulgaria

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Pfizer Investigational Site

Plovdiv, 4000, Bulgaria

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Pfizer Investigational Site

Rousse, Bulgaria

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Pfizer Investigational Site

Sofia, 1113, Bulgaria

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Pfizer Investigational Site

Sofia, 1407, Bulgaria

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Pfizer Investigational Site

Barranquilla, Atlántico, 0, Colombia

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Pfizer Investigational Site

Bogota, Cundinamarca, 0, Colombia

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Pfizer Investigational Site

Montes de Oca, Provincia de San José, Costa Rica

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Pfizer Investigational Site

San José, Costa Rica

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Pfizer Investigational Site

Brno, 602 00, Czechia

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Pfizer Investigational Site

Hradec Králové, 500 03, Czechia

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Pfizer Investigational Site

Olomouc, 775 20, Czechia

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Pfizer Investigational Site

Ostrava-Trebovice, 772 00, Czechia

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Pfizer Investigational Site

Prague, 140 59, Czechia

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Pfizer Investigational Site

Příbram, 26195, Czechia

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Pfizer Investigational Site

Rychnov nad Kněžnou, 516 01, Czechia

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Pfizer Investigational Site

Strasbourg, 67091, France

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Pfizer Investigational Site

Toulouse, 31043, France

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Pfizer Investigational Site

Bonn, 53105, Germany

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Pfizer Investigational Site

Hamburg, 22083, Germany

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Pfizer Investigational Site

Athens, 11521, Greece

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Pfizer Investigational Site

Thessaloniki, 57010, Greece

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Pfizer Investigational Site

Pune, Maharashtra, 411 004, India

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Pfizer Investigational Site

Chandigarh, Punjab, 160 012, India

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Pfizer Investigational Site

Ludhiana, Punjab, 141 008, India

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Pfizer Investigational Site

Florence, 50125, Italy

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Pfizer Investigational Site

Foggia, 71100, Italy

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Pfizer Investigational Site

Pisa, 56126, Italy

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Pfizer Investigational Site

Siena, 53100, Italy

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Pfizer Investigational Site

Kaunas, 50009, Lithuania

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Pfizer Investigational Site

Vilnius, 08661, Lithuania

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Pfizer Investigational Site

Distrito Federal, 14269, Mexico

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Pfizer Investigational Site

San Luis Potosí City, 78223, Mexico

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Pfizer Investigational Site

Panama City, Panama

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Pfizer Investigational Site

Lima, L 11, Peru

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Pfizer Investigational Site

Lima, Lima 1, Peru

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Pfizer Investigational Site

Tondo, Manila, 1000, Philippines

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Pfizer Investigational Site

Cebu City, 6000, Philippines

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Pfizer Investigational Site

Davao City, 8000, Philippines

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Pfizer Investigational Site

Makati City, 1200, Philippines

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Pfizer Investigational Site

Manila, 1000, Philippines

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Pfizer Investigational Site

Quezon City, 1100, Philippines

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Pfizer Investigational Site

Moscow, 107150, Russia

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Pfizer Investigational Site

Moscow, 125367, Russia

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Pfizer Investigational Site

Moscow, 129128, Russia

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Pfizer Investigational Site

Saint Petersburg, 194044, Russia

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Pfizer Investigational Site

Saint Petersburg, 194354, Russia

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Pfizer Investigational Site

Saint Petersburg, 197022, Russia

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Pfizer Investigational Site

Busan, 602-715, South Korea

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Pfizer Investigational Site

Daejeon, 301-721, South Korea

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Pfizer Investigational Site

Seoul, 110-744, South Korea

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Pfizer Investigational Site

Seoul, 120-752, South Korea

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Pfizer Investigational Site

Seoul, 135-710, South Korea

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Pfizer Investigational Site

Seoul, 137-701, South Korea

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Pfizer Investigational Site

Seoul, 138-736, South Korea

Location

Pfizer Investigational Site

Donostia / San Sebastian, Guipuzcoa, 20014, Spain

Location

Pfizer Investigational Site

Alicante, 03010, Spain

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Pfizer Investigational Site

Barcelona, 08035, Spain

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Pfizer Investigational Site

Córdoba, 14008, Spain

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Pfizer Investigational Site

Girona, 17007, Spain

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Pfizer Investigational Site

Seville, 41071, Spain

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Pfizer Investigational Site

Kaohsiung City, 807, Taiwan

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Pfizer Investigational Site

Taichung, 407, Taiwan

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Pfizer Investigational Site

Tainan, 704, Taiwan

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Pfizer Investigational Site

Çapa, Istanbul, 34390, Turkey (Türkiye)

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Pfizer Investigational Site

Ankara, 06100, Turkey (Türkiye)

Location

Pfizer Investigational Site

Cerrahpasa / Istanbul, 34098, Turkey (Türkiye)

Location

Pfizer Investigational Site

Caracas, Libertador, 1010, Venezuela

Location

Pfizer Investigational Site

Caracas, Miranda, 1080-A, Venezuela

Location

Related Publications (1)

  • Zaccara G, Almas M, Pitman V, Knapp L, Posner H. Efficacy and safety of pregabalin versus levetiracetam as adjunctive therapy in patients with partial seizures: a randomized, double-blind, noninferiority trial. Epilepsia. 2014 Jul;55(7):1048-57. doi: 10.1111/epi.12679. Epub 2014 Jun 5.

MeSH Terms

Conditions

SeizuresEpilepsies, PartialEpilepsy, Complex PartialEpilepsy

Interventions

PregabalinLevetiracetam

Condition Hierarchy (Ancestors)

Neurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and SymptomsBrain DiseasesCentral Nervous System Diseases

Intervention Hierarchy (Ancestors)

gamma-Aminobutyric AcidAminobutyratesButyratesAcids, AcyclicCarboxylic AcidsOrganic ChemicalsAmino AcidsAmino Acids, Peptides, and ProteinsAcetamidesAmidesAcetatesPyrrolidinonesPyrrolidinesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Limitations and Caveats

Results for BPRS were provided as change in scores at Week 16 compared to baseline instead of absolute scores as per planned analysis.

Results Point of Contact

Title
Pfizer ClinicalTrials.gov Call Center
Organization
Pfizer, Inc.

Study Officials

  • Pfizer CT.gov Call Center

    Pfizer

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 27, 2007

First Posted

October 1, 2007

Study Start

October 1, 2007

Primary Completion

May 1, 2012

Study Completion

May 1, 2012

Last Updated

January 28, 2021

Results First Posted

July 11, 2013

Record last verified: 2013-05

Locations