Pregabalin In Partial Seizures Extension Study
PREPS EXT
Pregabalin in Partial Seizures (PREPS) Extension Study: An 18-month Follow-on Open-label, International, Multicenter Add-on Therapy Trial
1 other identifier
interventional
227
6 countries
47
Brief Summary
To evaluate long-term efficacy and safety of pregabalin (150 to 600mg/day) as adjunctive treatment in patients with partial seizures.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_3
Started Apr 2005
47 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 1, 2005
CompletedFirst Submitted
Initial submission to the registry
August 31, 2005
CompletedFirst Posted
Study publicly available on registry
September 2, 2005
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2007
CompletedJanuary 28, 2021
March 1, 2015
August 31, 2005
January 26, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Reduction in seizure frequency.
18 months
Secondary Outcomes (3)
Seizure-free patients during each 3-month period
18 Months
Responder Rate 50% during each 3-month period (proportion of patients with 50% or greater reduction of seizures).
18 Months
Responder rate 75% during each 3-month period (proportion of patients with 75% or greater reduction of seizures).
18 Months
Study Arms (1)
Single Arm
EXPERIMENTALInterventions
Eligibility Criteria
You may not qualify if:
- have completed the 21-week study and have shown a significant clinical response and wish to continue treatment
- Having a treatable cause of seizure.
- Having a progressive neurological or systemic disorder
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (47)
Pfizer Investigational Site
Bruges, B-8000, Belgium
Pfizer Investigational Site
Brussels, 1070, Belgium
Pfizer Investigational Site
Duffel, B-2570, Belgium
Pfizer Investigational Site
Ghent, 9000, Belgium
Pfizer Investigational Site
Leuven, B-3000, Belgium
Pfizer Investigational Site
Liège, 4000, Belgium
Pfizer Investigational Site
Tielt, B-8700, Belgium
Pfizer Investigational Site
Yvoir, 5530, Belgium
Pfizer Investigational Site
Helsinki, 00250, Finland
Pfizer Investigational Site
Kuopio, 70210, Finland
Pfizer Investigational Site
Tampere, 33520, Finland
Pfizer Investigational Site
Paris, Cedex 14, 75674, France
Pfizer Investigational Site
Lille, Cedex, 59037, France
Pfizer Investigational Site
Lyon, Cedex, 69694, France
Pfizer Investigational Site
Marsille, Cedex, 13385, France
Pfizer Investigational Site
Rennes, Cedex, 35033, France
Pfizer Investigational Site
Bayonne, 64109, France
Pfizer Investigational Site
Bordeaux, 33076, France
Pfizer Investigational Site
Grenoble, 38043, France
Pfizer Investigational Site
Marseille 13, 13009, France
Pfizer Investigational Site
Montpellier, 34295, France
Pfizer Investigational Site
Nancy, 54000, France
Pfizer Investigational Site
Nice, Cedex 06002, France
Pfizer Investigational Site
Paris, 75019, France
Pfizer Investigational Site
Paris, 75651, France
Pfizer Investigational Site
Paris, 75674, France
Pfizer Investigational Site
Strasbourg, 67091, France
Pfizer Investigational Site
Toulouse, 31043, France
Pfizer Investigational Site
Tours, 37044, France
Pfizer Investigational Site
Katowice, 40-635, Poland
Pfizer Investigational Site
Krakow, 31-523, Poland
Pfizer Investigational Site
Lublin, 27-718, Poland
Pfizer Investigational Site
Warsaw, 00-416, Poland
Pfizer Investigational Site
Warsaw, 02-097, Poland
Pfizer Investigational Site
Warsaw, 02-957, Poland
Pfizer Investigational Site
Wroclaw, 50-420, Poland
Pfizer Investigational Site
Braga, 4701-965, Portugal
Pfizer Investigational Site
Coimbra, 3000-075, Portugal
Pfizer Investigational Site
Funchal, 9000-168, Portugal
Pfizer Investigational Site
Lisbon, Portugal
Pfizer Investigational Site
Matosinhos Municipality, 4454-509, Portugal
Pfizer Investigational Site
Ponta Delgada, 9500-370, Portugal
Pfizer Investigational Site
Ponta Delgada, 9500, Portugal
Pfizer Investigational Site
Porto, 4099-001, Portugal
Pfizer Investigational Site
Lausanne, CH-1011, Switzerland
Pfizer Investigational Site
Zurich, CH-8008, Switzerland
Pfizer Investigational Site
Zurich, CH-8091, Switzerland
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Pfizer CT.gov Call Center
Pfizer
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 31, 2005
First Posted
September 2, 2005
Study Start
April 1, 2005
Study Completion
September 1, 2007
Last Updated
January 28, 2021
Record last verified: 2015-03