A Study of the Efficacy and Safety of Pregabalin as Add-On Therapy for Partial Onset Seizures in Children Ages 4-16 Years
PERIWINKLE
A DOUBLE-BLIND, PLACEBO-CONTROLLED, PARALLEL-GROUP, MULTICENTER STUDY OF THE EFFICACY AND SAFETY OF PREGABALIN AS ADJUNCTIVE THERAPY IN CHILDREN 4 -16 YEARS OF AGE WITH PARTIAL ONSET SEIZURES
3 other identifiers
interventional
295
18 countries
86
Brief Summary
Study A0081041 is a double blind, placebo controlled, randomized, parallel group, multicenter study to evaluate the safety and efficacy of two dose levels of pregabalin administered in equally divided daily doses, in either capsule or oral liquid formulation, as adjunctive therapy in pediatric subjects 4 to 16 years of age with partial onset seizures.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Sep 2011
Longer than P75 for phase_3
86 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
First Submitted
Initial submission to the registry
July 6, 2011
CompletedFirst Posted
Study publicly available on registry
July 8, 2011
CompletedStudy Start
First participant enrolled
September 27, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 10, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
August 10, 2016
CompletedResults Posted
Study results publicly available
March 21, 2017
CompletedJanuary 20, 2021
January 1, 2019
4.9 years
July 6, 2011
January 31, 2017
January 15, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Log-Transformed 28-Day Seizure Rate For All Partial Onset Seizures During Baseline Phase
All partial onset seizures experienced during baseline phase were recorded by the participants or their parents/legal guardian, in a daily seizure diary. 28-day seizure rate for all partial onset seizures = (\[number of seizures in the baseline phase\] divided by \[number of days in baseline phase minus {-} number of missing diary days in baseline phase\])\*28. For log-transformation, the quantity 1 was added to the 28-day seizure rate for all participants to account for any possible "0" seizure incidence. This resulted in final calculation as: log transformed (28-day seizure rate +1).
Baseline phase (up to 8 weeks prior to treatment phase [Day 1])
Log-Transformed 28-Day Seizure Rate For All Partial Onset Seizures During 12-Week Treatment Phase
All partial onset seizures experienced during treatment phase were recorded by the participants or their parents/legal guardian in a daily seizure diary. 28-day seizure rate for all partial onset seizures = (\[number of seizures in the treatment phase\] divided by \[number of days in treatment phase minus {-} number of missing diary days in treatment phase\])\*28. For log-transformation, the quantity 1 was added to the 28-day seizure rate for all participants to account for any possible "0" seizure incidence. This resulted in final calculation as: log transformed (28-day seizure rate +1).
Day 1 up to Week 12
Secondary Outcomes (1)
Percentage of Participants With at Least 50 Percent (%) or Greater Reduction From Baseline in 28-day Seizure Rate During the 12 Week Treatment Phase
Day 1 up to Week 12
Other Outcomes (15)
Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)
Day 1 up to 7 days after last dose of study drug (up to 13 weeks)
Number of Participants With Treatment Emergent Treatment-Related Adverse Events (AEs) and Serious Adverse Events (SAEs)
Day 1 up to 7 days after last dose of study drug (up to 13 weeks)
Number of Adverse Events by Severity
Day 1 up to 7 days after last dose of study drug (up to 13 weeks)
- +12 more other outcomes
Study Arms (3)
Placebo
PLACEBO COMPARATORPregabalin Level 1 (max 150 mg/day)
EXPERIMENTALPregabalin Level 2 (max 600 mg day)
EXPERIMENTALInterventions
Subjects will be randomized to receive a fixed dose of either placebo, pregabalin Level 1 (maximum 150 mg/day) or pregabalin Level 2 (maximum 600 mg/day) in a 1:1:1 ratio, in addition to the subjects current AED medication regimen. Either capsules or oral liquid form will be administered, depending on subjects preference and ability to swallow capsules, in two equally divided daily doses. The study will have an 8 week baseline period; a 2 week dose escalation period; a 9 week dose maintenance period; and a 1 week dose taper period.
Eligibility Criteria
You may qualify if:
- Subjects and/or parent(s)/legally acceptable representative must be considered willing and able to sign consent, and complete daily seizure diaries and monitor seizure frequency.
- Male and female epilepsy subjects, 4 to 16 years of age inclusive on the date of the Screening Visit.
- Diagnosis of epilepsy with partial onset seizures classified as simple partial, complex partial or partial becoming secondarily generalized, according to the International League Against Epilepsy (ILAE) Diagnosis criteria.
- Must have a partial onset seizure frequency of at least 3 seizures per 28 day period prior to screening. Must have a partial onset seizure frequency of at least 6 seizures and no continuous 4 week seizure free period during the 8 week baseline phase prior to randomization.
- Currently receiving a stable dose of 1 to 3 antiepileptic drugs (stable within 28 days prior to screening).
You may not qualify if:
- Lennox Gastaut syndrome, Benign Epilepsy with Centrotemporal Spikes (BECTS) and Dravet syndrome.
- A current diagnosis of febrile seizures, or seizures related to an ongoing acute medical illness. Any febrile seizures within 1 year of screening.
- Status epilepticus within 1 year prior to screening.
- Seizures related to drugs, alcohol, or acute medical illness.
- Any change in AED regimen (type of medication or dose) within 28 days of the Screening Visit or during the Baseline Phase.
- Progressive structural CNS lesion or a progressive encephalopathy.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (86)
Center for Neurosciences
Tucson, Arizona, 85718, United States
Arkansas Children's Hospital
Little Rock, Arkansas, 72202, United States
Children's Hospital Los Angeles
Los Angeles, California, 90027, United States
Children´s Hospital Los Angeles
Los Angeles, California, 90027, United States
Axcess Medical Research
Loxahatchee Groves, Florida, 33470, United States
Laszlo J. Mate, M.D., P.A.
North Palm Beach, Florida, 33408, United States
Pediatric Neurology, P.A.
Orlando, Florida, 32819, United States
Tallahassee Neurological Clinic
Tallahassee, Florida, 32308, United States
Center for Clinical and Translational Science
Lexington, Kentucky, 40536, United States
Kentucky Neuroscience Institute
Lexington, Kentucky, 40536, United States
University of Kentucky Hospital Epilepsy Monitoring Unit
Lexington, Kentucky, 40536, United States
University of Kentucky Hospital Pharmacy, UK Chandler Hosptial
Lexington, Kentucky, 40536, United States
Kosair Charities Pediatric Clinical
Louisville, Kentucky, 40202, United States
Kosair Children's Hospital
Louisville, Kentucky, 40202, United States
University of Louisville Physicians
Louisville, Kentucky, 40202, United States
Saint Peter's University Hospital
New Brunswick, New Jersey, 08901, United States
Duke Children's Hospital and Health Center
Durham, North Carolina, 27710, United States
Duke Clinical Research Unit
Durham, North Carolina, 27710, United States
Akron Children's Hospital
Akron, Ohio, 44308, United States
Road Runner Research, Ltd.
San Antonio, Texas, 78258, United States
Centre Hospitalier Neurologique William Lennox
Ottignies, Brabant Wallon, 1340, Belgium
HUDERF
Brussels, Brussels Capital, 1020, Belgium
Cliniques Universitaires de Bruxelles Hôpital Erasme
Brussels, 1070, Belgium
UMBAL Sveti Georgi, Klinika po pediatria i genetichni zabolyavania
Plovdiv, 4000, Bulgaria
Fakultni nemocnice Brno - Detska nemocnice
Brno - Cerna Pole, 613 00, Czechia
Fakultni nemocnice v Motole
Prague, 150 06, Czechia
CHU Bordeaux - Hopital des Enfants
Bordeaux, 33076, France
Hôpital Mère Enfant
Bron, 69677, France
Hopital Raymond Poincare
Garches, 92380, France
Hopitaux Universitaires de Strasbourg - Hopital Hautepierre
Strasbourg, 67098, France
General Childrens Hospital of Athens P & A Kyriakou
Athens, 11527, Greece
General Children's Hospital Penteli
Athens, 15236, Greece
Dr. Kenessey Albert Korhaz es Rendelointezet
Balassagyarmat, H-2660, Hungary
Szent Janos Korhaz es Eszak Budai Egyesitett Korhazak
Budapest, H-1023, Hungary
Semmelweis Egyetem, I. Sz. Gyermekgyogyaszati Klinika
Budapest, H-1083, Hungary
Heim Pal Gyermekkorhaz, Neurologiai Osztaly
Budapest, H-1089, Hungary
Magyarorszagi Reformatus Egyhaz Bethesda Gyermekkorhaz, Gyermekneurologia
Budapest, H-1146, Hungary
Pécsi Tudományegyetem Klinikai Központ
Pécs, 7623, Hungary
Bnai Zion Medical Center
Haifa, 3104802, Israel
A.O.U. Ospedali Riuniti di Ancona Presidio Ospedaliero G. Salesi
Ancona, 60123, Italy
Azienda Ospedaliero-Universitaria Meyer
Florence, 50139, Italy
Fondazione Istituto Neurologico Nazionale Casimiro Mondino, IRCCS - Servizio di Farmacia
Pavia, 27100, Italy
Fondazione Istituto Neurologico Nazionale Casimiro Mondino, IRCCS
Pavia, 27100, Italy
Paediatric Department
Ipoh, Perak, 30990, Malaysia
Hospital Kuala Lumpur
Kuala Lumpur, 50586, Malaysia
Cebu Doctors' University Hospital
Cebu City, CEBU, 6000, Philippines
Center for Neurodiagnostic and Therapeutic Services
Sta Cruz, Manila, 1003, Philippines
Capitol Medical Center Inc.
Quezon City, National Capital Region, 1100, Philippines
Cebu Doctors' University Hospital
Cebu City, 6000, Philippines
University of Santo Tomas Hospital
Manila, 1008, Philippines
St. Luke's Medical Center
Quezon City, 1102, Philippines
Philippine Children's Medical Center
Quezon City, 1105, Philippines
Klinika Neurologii Rozwojowej
Gdansk, 80-952, Poland
NZOZ Centrum Neurologii Dzieciecej i Leczenia Padaczki
Kielce, 25316, Poland
Wojewodzki Specjalistyczny Szpital Dzieciecy im. sw. Ludwika w Krakowie
Krakow, 31-503, Poland
Katedra i Klinika Neurologii Wieku Rozwojowego
Poznan, 60-355, Poland
Oddzial Neurologii Dzieciecej, Dolnoslaski Szpital Specjalistyczny im.T. Marciniaka
Wroclaw, 54-049, Poland
Spitalul clinic de copii Dr. Victor Gomoiu
Bucharest, 022102, Romania
Spitalul Clinic de Psihiatrie "Prof. Dr. Al. Obregia"
Bucharest, 041914, Romania
Spitalul Clinic de Urgente pentru Copii "Sf. Maria",
Iași, 700309, Romania
Spitalul de Psihiatrie Dr. Ghe. Preda
Sibiu, 550 082, Romania
Centrul Medical Dr. Bacos Cosma
Timișoara, 300314, Romania
Institute for Child and Youth Healthcare of Vojvodina
Novi Sad, Vojvodina, 21000, Serbia
Mother and Child Healthcare Institute Dr Vukan Cupic
Belgrade, 11000, Serbia
University Children's Hospital Belgrade
Belgrade, 11000, Serbia
Clinical Center of Kragujevac
Kragujevac, 34000, Serbia
National University Hospital
Singapore, 119074, Singapore
KK Women's and Children's Hospital
Singapore, 229899, Singapore
Samsung Medical Center/ Department of Pediatrics, Pediatric Neurology
Seoul, 06351, South Korea
Seoul National University Hospital
Seoul, 110-744, South Korea
Severance Hospital, Yonsei University Health System
Seoul, 120 752, South Korea
Ege University Medical Faculty Department of Pediatrics Health and Diseases
Izmir, Bornova, 35100, Turkey (Türkiye)
Karadeniz Technical University Faculty of Medicine Farabi Hospital
Trabzon, Farabi, 61080, Turkey (Türkiye)
Izmir Tepecik Training and Research Hospital
Izmir, Konak, 35120, Turkey (Türkiye)
Behcet Uz Children Disease and surgery Training and research hospital
Izmir, Konak, 35210, Turkey (Türkiye)
Marmara University Pendik Training and Research Hospital
Istanbul, Pendik, 34890, Turkey (Türkiye)
Hacettepe University Medical Faculty
Ankara, Sihhiye/ankara, 06100, Turkey (Türkiye)
Komunalnyi zaklad "Dnipropetrovska dytiacha miska klinichna likarnia
Dnipropetrovsk, 49027, Ukraine
Komunalnyi zaklad "Dnipropetrovska oblasna dytiacha klinichna likarnia"
Dnipropetrovsk, 49100, Ukraine
Derzhavna ustanova "Instytut nevrolohii, psykhiatrii ta narkolohii
Kharkiv, 61068, Ukraine
Derzhavna Ustanova Instytut Nevrolohii, Psykhiatrii ta Narkolohii NAMN Ukrainy,
Kharkiv, 61068, Ukraine
Derzhavnyi zaklad "Ukrainskyi medychnyi tsentr reabilitatsii ditei z
Kyiv, 04209, Ukraine
Komunalna ustanova "Odeskyi oblasnyi medychnyi tsentr psykhichnoho zdorovia",
Odesa, 65006, Ukraine
Komunalna ustanova "Odeska oblasna dytiacha klinichna likarnia", Oblasnyi tsentr rannoi
Odesa, 65031, Ukraine
Komunalna ustanova "Odeska oblasna psykhiatrychna likarnia 2",
S. Oleksandrivka, 67513, Ukraine
Oblasnyi klinichnyi tsentr neirokhirurhii ta nevrolohii, viddilennia neirokhirurhii 2,
Uzhhorod, 88018, Ukraine
Related Publications (1)
Antinew J, Pitrosky B, Knapp L, Almas M, Pitman V, Liu J, Craiu D, Modequillo M, Nordli D, Farkas V, Farkas MK. Pregabalin as Adjunctive Treatment for Focal Onset Seizures in Pediatric Patients: A Randomized Controlled Trial. J Child Neurol. 2019 Apr;34(5):248-255. doi: 10.1177/0883073818821035. Epub 2019 Jan 27.
PMID: 30688135DERIVED
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Pfizer ClinicalTrials.gov Call Center
- Organization
- Pfizer, Inc.
Study Officials
- STUDY DIRECTOR
Pfizer CT.gov Call Center
Pfizer
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
July 6, 2011
First Posted
July 8, 2011
Study Start
September 27, 2011
Primary Completion
August 10, 2016
Study Completion
August 10, 2016
Last Updated
January 20, 2021
Results First Posted
March 21, 2017
Record last verified: 2019-01
Data Sharing
- IPD Sharing
- Will share
Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.