Open-Label Extension Study Of Safety And Tolerability Of Pregabalin In Pediatric Patients With Partial-Onset Seizures

Sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc. (Industry)
Overall Status
Completed
CT.gov ID
NCT00448916
Collaborator
(none)
54
18
1
77
3
0

Study Details

Study Description

Brief Summary

The study will evaluate the long-term safety and tolerability of pregabalin in pediatric patients, age 1 month through 16 years, with partial onset seizures.

Condition or Disease Intervention/Treatment Phase
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
54 participants
Allocation:
Non-Randomized
Intervention Model:
Single Group Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
A 12-month Open-label Extension Study Evaluating The Safety And Tolerability Of Flexible Doses Of Pregabalin In Pediatric Patients With Partial Onset Seizures
Study Start Date :
May 1, 2007
Actual Primary Completion Date :
Oct 1, 2013
Actual Study Completion Date :
Oct 1, 2013

Arms and Interventions

Arm Intervention/Treatment
Experimental: Pregabalin

Orally-administered pregabalin

Drug: Pregabalin
Orally-administered pregabalin

Outcome Measures

Primary Outcome Measures

  1. Number of Participants With Adverse Events (AE). [12 Months]

    An AE is any untoward medical occurrence in a clinical investigation participant administered a product or medical device; the event need not necessarily have a causal relationship with the treatment or usage. A serious adverse event (SAE) is any untoward medical occurrence at any dose that: results in death; is life-threatening (immediate risk of death); requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; results in congenital anomaly/birth defect.

Secondary Outcome Measures

  1. Number of Participants With Change From Previous Physical Examination Results at Visit 1, Week 1, Month 1, Month 6, Month 12/Early Termination and Follow-up. [Visit 1, Week 1, Month 1, Month 6, Month 12/Early Termination and Follow-up.]

    Changes from previous examinations in physical examination were reported. Examination of abdomen, breasts, ears, extremities, eyes, genitourinary, head, heart, lungs, lymph nodes, mouth, musculoskeletal, neck, nose, ocular fundi, skin, throat, thyroid and general examinations were done. Evaluation was done based on presence of abnormality which were noted as "abnormal" and no abnormalities in the sites were reported as "normal". Any change from the previous physical examination results were noted.

  2. Number of Participants With Change From Previous Neurological Examination Results at Visit 1, Week 1, Month 1, Month 6, Month 12/Early Termination and Follow-up. [Visit 1, Week 1, Month 1, Month 6, Month 12/Early Termination and Follow-up]

    Changes from previous examinations in neurological examination were reported. The neurologic exam were performed by a pediatric neurologist or qualified staff member. Coordination, cranial nerves, gait, level of consciousness, lower and upper extremity sensation, muscle strength, muscle tone, nystagmus, reflexes, Romberg test, and speech were examined.

  3. Number of Participants With Significant Change in Supine Diastolic Blood Pressure (BP) at Post-Baseline Visits (Visit 1 to 12 Months). [Visit 1 to 12 Months]

    Participants with significant supine diastolic BP values with the criteria ≥ 20% increase from Baseline or ≥ 20% decrease from Baseline or > 1.25 times upper limit of normal (ULN) or < 0.9 times lower limit of normal (LLN) were identified and recorded. The categorical summary of Post-Baseline supine diastolic BP data are presented below.

  4. Number of Participants With Significant Change in Supine Systolic BP at Post Baseline Visits (Visit 1 to 12 Months). [Visit 1 to 12 Months]

    Participants with significant supine systolic BP values with the criteria ≥ 30% increase from Baseline or ≥ 30% decrease from Baseline or > 1.25 times ULN or < 0.9 times LLN were identified and recorded. The categorical summary of Post-Baseline supine systolic BP data are presented below.

  5. Number of Participants With Significant Change in Supine Heart Rate (HR) at Post Baseline Visits (Visit 1 to 12 Months). [Visit 1 to 12 Months]

    Participants with significant heart rate values with the criteria > 1.5 times ULN or < 0.9 times LLN were identified and recorded. The categorical summary of Post-Baseline supine HR data are presented below.

  6. Derived Body Mass Index Data (BMI) at Month 12/Early Termination. [Month 12/Early Termination]

    BMI was calculated from height and weight measured at Month 12 visit using the formula: weight(kg)/height(m)2.

  7. Change From Baseline in Body Weight at Day 9, Week 1, Month 1, Month 2, Month 4, Month 6, Month 9, Month 12/Early Termination and Follow-up. [Baseline, Day 9, Week 1, Month 1, Month 2, Month 4, Month 6, Month 9, Month 12/Early Termination and Follow-up]

    Weight was recorded in kilograms and weight change from Baseline was reported.

  8. Height at Month 12/Early Termination. [Month 12/Early Termination]

    Height was recorded in centimeters.

  9. Number of Participants With Changes in Electrocardiogram (ECG) Data Post-Baseline Visits (Week 1 to 12 Months). [Week 1 to 12 Months]

    Based on the criteria for safety values of potential clinical concern, the PR interval (≥200 msec; ≥25% increase from Baseline; ≥50% increase from Baseline), QRS complex (≥200 msec; ≥25% increase from Baseline), QT (≥500 msec), maximum QTcB interval (450-<480; 480-<500; ≥500 msec) and maximum QTcF interval (450-<480; 480-<500; ≥500 msec) values were calculated. Baseline was defined as Day 1 of the parent study A0081074 (NCT00437281). Categorical data of the Post-Baseline vists are represented below.

  10. Number of Participants With Hematotolgical Abnormalities. [12 Months]

    Based on criteria for safety values of potential clinical concern, the participants with abnormal values were noted. Some of the values are: platelets (10*3/mm*3): <0.5 LLN or >1.75 ULN; white blood cell (WBC) count (X10E9/L): <0.6 LLN or >1.5 ULN; lymphocytes-Abs (10*3/mm*3): <0.8 LLN or >1.2 ULN; total neutrophils-Abs (10*3/mm*3): <0.8 LLN or >1.2 ULN; and eosinophils-Abs: >1.2 ULN.

  11. Number of Participants With Abnormalities in Urinalysis (Dipstick/Microscopy). [12 Months]

    Based on criteria for safety values of potential clinical concern, the participants with abnormal values were noted. Participants with Urine Protein (mg/dL) abnormalities (≥1) were noted based on urinalysis (dipstick). No participants with abnormalities in urinalysis (microscopy) were noted.

  12. Number of Participants With Abnormalities in Endocrine Panel (Hormones). [12 Months]

    Based on criteria for safety values of potential clinical concern, the participants with abnormal values were noted. Some of the criteria are: Free thyroxine (T4 free) (ng/dL): <0.8 LLN or >1.2 ULN and Thyroid-stimulating hormone (TSH) (mu/L): <0.8 LLN or >1.2 ULN.

  13. Number of Participants With Abnormalities in Creatine Kinase. [12 Months]

    Based on criteria for safety values of potential clinical concern, the participants with abnormal values in creatine kinase (>2.0 times upper limit of the reference range) (u/L) were noted.

  14. Seizure Frequency. [28 Days]

    Twenty-eight-day seizure frequencies were to be calculated from the seizure diaries and were to be reviewed. However, due to the nature of the data collection and due to unability to clearly differentiate no seizures versus seizures, accurate computation of this data was not performed. Hence, the seizure data was reported as AE.

  15. Number of Participants With Abnormalities in Chemistry (Including Liver Function, Renal Function, Lipids, Electrolytes, Glucose, Insulin Like Growth Factor (IGF) and IGF Binding Protein). [12 Months]

    Based on criteria for safety values of potential clinical concern, the participants with abnormal values in liver function tests, renal function tests, lipid profile, electrolytes, glucose, Insulin like growth factor (IGF) and IGF binding protein were noted and reported in this section.

Eligibility Criteria

Criteria

Ages Eligible for Study:
1 Month to 16 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Partial onset seizures, incompletely controlled on 1-3 medications

  • At least 1 seizure per 28 days, on average

  • Completion of study A0081074

Exclusion Criteria:
  • Primary generalized seizures

  • Progressive CNS pathology

  • Failure to tolerate pregabalin in study A0081074

Contacts and Locations

Locations

Site City State Country Postal Code
1 University of South Alabama Mobile Alabama United States 36604
2 University of South Alabama Department of Neurology Mobile Alabama United States 36693
3 Phoenix Children's Hospital Phoenix Arizona United States 85016
4 The Children's Clinica of Jonesboro, P.A Jonesboro Arkansas United States 72401
5 Clinical Study Centers, L. L. C. Little Rock Arkansas United States 72205
6 UCSF Neurology Clinic San Francisco California United States 94143
7 Child Neurology Center of Northwest Florida Gulf Breeze Florida United States 32561
8 The Office of Sergio J Jacinto, MD Tampa Florida United States 33603
9 Pediatric Epilepsy & Neurology Specialists Tampa Florida United States 33609
10 St. John's Clinic Springfield Missouri United States 65804
11 St. John's Hospital Springfield Missouri United States 65804
12 Women and Children's Hospital of Buffalo Buffalo New York United States 14222
13 Duke University Medical Center Durham North Carolina United States 27710
14 Baylor College of Medicine - Texas Children's Hospital Houston Texas United States 77030
15 Texas Children's Hospital Houston Texas United States 77030
16 Road Runner Research, Ltd. San Antonio Texas United States 78258
17 Yonsei University College of Medicine Severance Hospital / Department of Pediatric Neurology Seoul Korea, Republic of 120-752
18 Antiguo Hospital Civil de Guadalajara Fray Antonio Alcalde Guadalajara Jalisco Mexico 44280

Sponsors and Collaborators

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

Investigators

  • Study Director: Pfizer CT.gov Call Center, Pfizer

Study Documents (Full-Text)

None provided.

More Information

Additional Information:

Publications

None provided.
Responsible Party:
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
ClinicalTrials.gov Identifier:
NCT00448916
Other Study ID Numbers:
  • A0081075
  • 2010-020731-39
First Posted:
Mar 19, 2007
Last Update Posted:
Jan 25, 2021
Last Verified:
Nov 1, 2014
Keywords provided by Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Additional relevant MeSH terms:

Study Results

Participant Flow

Recruitment Details This study was a dose extension study of pediatric participants with refractory partial-onset seizures who had completed study A0081074 (NCT00437281). Participants were enrolled in 3 countries at 13 study centers with 13 investigators: Republic of Korea (1 center), Mexico (1 center), and the United States (11 centers).
Pre-assignment Detail Each participant was restricted to the dose levels that they had previously tolerated, or that had shown acceptable safety and tolerability in study A0081074 (NCT00437281) for the participant's age group.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months.
Period Title: Overall Study
STARTED 16 15 12 11
COMPLETED 9 9 6 5
NOT COMPLETED 7 6 6 6

Baseline Characteristics

Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years Total
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Total of all reporting groups
Overall Participants 16 15 12 11 54
Age (Years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [Years]
1.18
(0.57)
4.14
(1.23)
9.98
(1.30)
14.86
(1.53)
6.74
(5.35)
Sex: Female, Male (Count of Participants)
Female
8
50%
9
60%
5
41.7%
3
27.3%
25
46.3%
Male
8
50%
6
40%
7
58.3%
8
72.7%
29
53.7%

Outcome Measures

1. Primary Outcome
Title Number of Participants With Adverse Events (AE).
Description An AE is any untoward medical occurrence in a clinical investigation participant administered a product or medical device; the event need not necessarily have a causal relationship with the treatment or usage. A serious adverse event (SAE) is any untoward medical occurrence at any dose that: results in death; is life-threatening (immediate risk of death); requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; results in congenital anomaly/birth defect.
Time Frame 12 Months

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months.
Measure Participants 16 15 12 11
Participants with AEs
14
87.5%
13
86.7%
11
91.7%
9
81.8%
Participants with serious AEs
8
50%
3
20%
0
0%
1
9.1%
Participants with severe AEs
7
43.8%
4
26.7%
0
0%
1
9.1%
2. Secondary Outcome
Title Number of Participants With Change From Previous Physical Examination Results at Visit 1, Week 1, Month 1, Month 6, Month 12/Early Termination and Follow-up.
Description Changes from previous examinations in physical examination were reported. Examination of abdomen, breasts, ears, extremities, eyes, genitourinary, head, heart, lungs, lymph nodes, mouth, musculoskeletal, neck, nose, ocular fundi, skin, throat, thyroid and general examinations were done. Evaluation was done based on presence of abnormality which were noted as "abnormal" and no abnormalities in the sites were reported as "normal". Any change from the previous physical examination results were noted.
Time Frame Visit 1, Week 1, Month 1, Month 6, Month 12/Early Termination and Follow-up.

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months.
Measure Participants 16 15 12 11
Week 1 (N=16,13,11,10)
2
12.5%
1
6.7%
0
0%
0
0%
Month 1 (N=14,13,10,10)
1
6.3%
1
6.7%
0
0%
0
0%
Month 6 (N=11,10,6,7)
1
6.3%
1
6.7%
0
0%
0
0%
Month 12/Eary Termination (N=16,12,12,9)
1
6.3%
2
13.3%
1
8.3%
1
9.1%
Follow-up (N=6,4,9,6)
0
0%
0
0%
1
8.3%
0
0%
3. Secondary Outcome
Title Number of Participants With Change From Previous Neurological Examination Results at Visit 1, Week 1, Month 1, Month 6, Month 12/Early Termination and Follow-up.
Description Changes from previous examinations in neurological examination were reported. The neurologic exam were performed by a pediatric neurologist or qualified staff member. Coordination, cranial nerves, gait, level of consciousness, lower and upper extremity sensation, muscle strength, muscle tone, nystagmus, reflexes, Romberg test, and speech were examined.
Time Frame Visit 1, Week 1, Month 1, Month 6, Month 12/Early Termination and Follow-up

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as liquid or capsule formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day.
Measure Participants 16 15 12 11
Week 1 (N=16,13,11,10)
1
6.3%
0
0%
0
0%
0
0%
Month 1 (N=14,13,10,10)
0
0%
0
0%
0
0%
0
0%
Month 6 (N=11,10,6,7)
0
0%
0
0%
0
0%
0
0%
Month 12/Early Termination (N=16,11,12,9)
0
0%
0
0%
0
0%
0
0%
Follow-up (N=6,4,9,6)
0
0%
0
0%
0
0%
0
0%
4. Secondary Outcome
Title Number of Participants With Significant Change in Supine Diastolic Blood Pressure (BP) at Post-Baseline Visits (Visit 1 to 12 Months).
Description Participants with significant supine diastolic BP values with the criteria ≥ 20% increase from Baseline or ≥ 20% decrease from Baseline or > 1.25 times upper limit of normal (ULN) or < 0.9 times lower limit of normal (LLN) were identified and recorded. The categorical summary of Post-Baseline supine diastolic BP data are presented below.
Time Frame Visit 1 to 12 Months

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as liquid or capsule formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day.
Measure Participants 16 15 12 11
≥ 20% increase from Baseline
12
75%
5
33.3%
8
66.7%
3
27.3%
≥ 20% decrease from Baseline
5
31.3%
7
46.7%
3
25%
3
27.3%
> 1.25 * ULN
1
6.3%
1
6.7%
0
0%
0
0%
< 0.9 * LLN
0
0%
0
0%
3
25%
0
0%
5. Secondary Outcome
Title Number of Participants With Significant Change in Supine Systolic BP at Post Baseline Visits (Visit 1 to 12 Months).
Description Participants with significant supine systolic BP values with the criteria ≥ 30% increase from Baseline or ≥ 30% decrease from Baseline or > 1.25 times ULN or < 0.9 times LLN were identified and recorded. The categorical summary of Post-Baseline supine systolic BP data are presented below.
Time Frame Visit 1 to 12 Months

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as liquid or capsule formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day.
Measure Participants 16 15 12 11
≥ 30% increase from Baseline
2
12.5%
3
20%
1
8.3%
1
9.1%
≥ 30% decrease from Baseline
2
12.5%
1
6.7%
0
0%
0
0%
> 1.25 * ULN
0
0%
0
0%
0
0%
0
0%
< 0.9 * LLN
0
0%
0
0%
1
8.3%
0
0%
6. Secondary Outcome
Title Number of Participants With Significant Change in Supine Heart Rate (HR) at Post Baseline Visits (Visit 1 to 12 Months).
Description Participants with significant heart rate values with the criteria > 1.5 times ULN or < 0.9 times LLN were identified and recorded. The categorical summary of Post-Baseline supine HR data are presented below.
Time Frame Visit 1 to 12 Months

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as liquid or capsule formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day.
Measure Participants 16 15 12 11
> 1.5 * ULN
0
0%
0
0%
0
0%
0
0%
< 0.9 * LLN
5
31.3%
2
13.3%
1
8.3%
0
0%
7. Secondary Outcome
Title Derived Body Mass Index Data (BMI) at Month 12/Early Termination.
Description BMI was calculated from height and weight measured at Month 12 visit using the formula: weight(kg)/height(m)2.
Time Frame Month 12/Early Termination

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included. Data was available for 15, 11, 10 and 7 participants in Pregabalin 1-23 months group, 2-6 years group, 7-11 years group and 12-16 years group respectively.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as liquid or capsule formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day.
Measure Participants 15 11 10 7
Mean (Standard Deviation) [Kg/m^2]
16.2
(1.73)
18.0
(3.52)
20.6
(6.52)
24.8
(7.72)
8. Secondary Outcome
Title Change From Baseline in Body Weight at Day 9, Week 1, Month 1, Month 2, Month 4, Month 6, Month 9, Month 12/Early Termination and Follow-up.
Description Weight was recorded in kilograms and weight change from Baseline was reported.
Time Frame Baseline, Day 9, Week 1, Month 1, Month 2, Month 4, Month 6, Month 9, Month 12/Early Termination and Follow-up

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as liquid or capsule formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day.
Measure Participants 16 15 12 11
Day 9 (N=16,14,12,11)
0.1
(0.16)
0.1
(0.29)
-0.1
(0.79)
0.4
(1.07)
Week 1 (N=16,13,11,10)
0.3
(0.29)
0.4
(0.61)
1.5
(1.15)
1.2
(1.43)
Month 1 (N=14,13,10,10)
0.4
(0.45)
0.8
(0.73)
2.1
(1.77)
2.4
(1.52)
Month 2 (N=11,12,8,9)
1.0
(0.73)
1.2
(1.12)
3.8
(3.25)
3.0
(1.81)
Month 4 (N=11,10,7,9)
1.3
(0.86)
1.3
(1.29)
5.2
(4.32)
4.1
(2.28)
Month 6 (N=11,10,6,7)
1.8
(0.98)
1.4
(1.52)
5.9
(4.17)
5.9
(3.32)
Month 9 (N=9,10,6,5)
2.4
(1.18)
2.3
(2.52)
6.3
(4.66)
7.3
(4.32)
Month 12/Early Termination (N=15,12,11,8)
1.8
(1.33)
2.4
(2.71)
6.0
(4.78)
6.6
(4.51)
9. Secondary Outcome
Title Height at Month 12/Early Termination.
Description Height was recorded in centimeters.
Time Frame Month 12/Early Termination

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as liquid or capsule formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day.
Measure Participants 15 11 10 7
Mean (Standard Deviation) [cm]
83.3
(8.87)
109.9
(12.76)
145.6
(13.21)
167.3
(8.18)
10. Secondary Outcome
Title Number of Participants With Changes in Electrocardiogram (ECG) Data Post-Baseline Visits (Week 1 to 12 Months).
Description Based on the criteria for safety values of potential clinical concern, the PR interval (≥200 msec; ≥25% increase from Baseline; ≥50% increase from Baseline), QRS complex (≥200 msec; ≥25% increase from Baseline), QT (≥500 msec), maximum QTcB interval (450-<480; 480-<500; ≥500 msec) and maximum QTcF interval (450-<480; 480-<500; ≥500 msec) values were calculated. Baseline was defined as Day 1 of the parent study A0081074 (NCT00437281). Categorical data of the Post-Baseline vists are represented below.
Time Frame Week 1 to 12 Months

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as liquid or capsule formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day.
Measure Participants 16 15 12 11
PR interval: ≥ 200 msec
0
0%
0
0%
0
0%
0
0%
PR interval: ≥50% increase from Baseline
0
0%
0
0%
0
0%
0
0%
PR interval: ≥25% increase from Baseline
1
6.3%
0
0%
1
8.3%
0
0%
QRS interval: ≥ 200 msec
0
0%
0
0%
0
0%
0
0%
QRS interval: ≥25% increase from Baseline
0
0%
0
0%
0
0%
0
0%
QT interval: ≥ 500 msec
0
0%
0
0%
0
0%
0
0%
QTcB interval: 450-<480 msec
1
6.3%
1
6.7%
1
8.3%
2
18.2%
QTcB interval: 480-<500 msec
0
0%
0
0%
0
0%
0
0%
QTcB interval: ≥ 500 msec
0
0%
0
0%
0
0%
0
0%
QTcF interval: 450-<480 msec
0
0%
0
0%
0
0%
0
0%
QTcF interval: 480-<500 msec
0
0%
0
0%
0
0%
0
0%
QTcF interval: ≥ 500 msec
0
0%
0
0%
0
0%
0
0%
11. Secondary Outcome
Title Number of Participants With Hematotolgical Abnormalities.
Description Based on criteria for safety values of potential clinical concern, the participants with abnormal values were noted. Some of the values are: platelets (10*3/mm*3): <0.5 LLN or >1.75 ULN; white blood cell (WBC) count (X10E9/L): <0.6 LLN or >1.5 ULN; lymphocytes-Abs (10*3/mm*3): <0.8 LLN or >1.2 ULN; total neutrophils-Abs (10*3/mm*3): <0.8 LLN or >1.2 ULN; and eosinophils-Abs: >1.2 ULN.
Time Frame 12 Months

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as liquid or capsule formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day.
Measure Participants 16 15 12 11
Platelets: <0.5xLLN (N=16,15,12,11)
1
6.3%
1
6.7%
0
0%
0
0%
Platelets: >1.75xULN (N=16,15,12,11)
1
6.3%
0
0%
0
0%
0
0%
WBC count: <0.6xLLN (N=15,15,12,11)
1
6.3%
2
13.3%
0
0%
0
0%
WBC count: >1.5xULN (N=15,15,12,11)
0
0%
0
0%
0
0%
0
0%
Lymphocytes-Abs: <0.8xLLN (N=15,15,12,11)
0
0%
0
0%
0
0%
0
0%
Lymphocytes-Abs: >1.2xULN (N=15,15,12,11)
1
6.3%
0
0%
0
0%
2
18.2%
Total neutrophils-Abs: <0.8xLLN (N=15,15,12,11)
3
18.8%
4
26.7%
3
25%
3
27.3%
Total neutrophils-Abs: >1.2xULN (N=15,15,12,11)
1
6.3%
1
6.7%
0
0%
0
0%
Eosinophils-Abs: >1.2xULN (N=15,15,12,11)
3
18.8%
1
6.7%
1
8.3%
0
0%
Hemoglobin: <0.8xLLN(N=15,15,12,11)
0
0%
0
0%
0
0%
0
0%
Hematocrit: <0.8xLLN (N=15,15,12,11)
0
0%
0
0%
0
0%
0
0%
Red blood cell count: <0.8xLLN (N=15,15,12,11)
0
0%
0
0%
0
0%
0
0%
Basophils: >1.2xULN (N=15,15,12,11)
0
0%
0
0%
0
0%
0
0%
Monocytes: >1.2xULN (N=15,15,12,11)
0
0%
0
0%
0
0%
0
0%
12. Secondary Outcome
Title Number of Participants With Abnormalities in Urinalysis (Dipstick/Microscopy).
Description Based on criteria for safety values of potential clinical concern, the participants with abnormal values were noted. Participants with Urine Protein (mg/dL) abnormalities (≥1) were noted based on urinalysis (dipstick). No participants with abnormalities in urinalysis (microscopy) were noted.
Time Frame 12 Months

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as liquid or capsule formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day.
Measure Participants 11 15 11 11
Number [Participants]
1
6.3%
1
6.7%
0
0%
1
9.1%
13. Secondary Outcome
Title Number of Participants With Abnormalities in Endocrine Panel (Hormones).
Description Based on criteria for safety values of potential clinical concern, the participants with abnormal values were noted. Some of the criteria are: Free thyroxine (T4 free) (ng/dL): <0.8 LLN or >1.2 ULN and Thyroid-stimulating hormone (TSH) (mu/L): <0.8 LLN or >1.2 ULN.
Time Frame 12 Months

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as liquid or capsule formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day.
Measure Participants 16 15 12 11
T4 (free): <0.8xLLN (N=13,13,11,10)
0
0%
1
6.7%
0
0%
0
0%
T4 (free): >1.2xULN (N=13,13,11,10)
0
0%
0
0%
0
0%
0
0%
TSH: <0.8xLLN (N=14,12,11,10)
1
6.3%
0
0%
0
0%
0
0%
TSH: >1.2xULN (N=14,12,11,10)
0
0%
0
0%
0
0%
0
0%
14. Secondary Outcome
Title Number of Participants With Abnormalities in Creatine Kinase.
Description Based on criteria for safety values of potential clinical concern, the participants with abnormal values in creatine kinase (>2.0 times upper limit of the reference range) (u/L) were noted.
Time Frame 12 Months

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as liquid or capsule formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day.
Measure Participants 15 15 12 11
Number [Participants]
0
0%
1
6.7%
1
8.3%
4
36.4%
15. Secondary Outcome
Title Seizure Frequency.
Description Twenty-eight-day seizure frequencies were to be calculated from the seizure diaries and were to be reviewed. However, due to the nature of the data collection and due to unability to clearly differentiate no seizures versus seizures, accurate computation of this data was not performed. Hence, the seizure data was reported as AE.
Time Frame 28 Days

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as liquid or capsule formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day.
Measure Participants 16 15 12 11
Number [Participants]
NA
NaN
NA
NaN
NA
NaN
NA
NaN
16. Secondary Outcome
Title Number of Participants With Abnormalities in Chemistry (Including Liver Function, Renal Function, Lipids, Electrolytes, Glucose, Insulin Like Growth Factor (IGF) and IGF Binding Protein).
Description Based on criteria for safety values of potential clinical concern, the participants with abnormal values in liver function tests, renal function tests, lipid profile, electrolytes, glucose, Insulin like growth factor (IGF) and IGF binding protein were noted and reported in this section.
Time Frame 12 Months

Outcome Measure Data

Analysis Population Description
Safety analysis set: All participants who received at least one dose of study medication were included.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months.
Measure Participants 15 15 12 11
Alanine Aminotransferase: >3.0xULN (N=15,15,12,11)
0
0%
1
6.7%
1
8.3%
0
0%
Blood Urea Nitrogen: >1.3xULN
2
12.5%
5
33.3%
1
8.3%
0
0%
Albumin: <0.8xLLN (N=15,15,12,11)
0
0%
0
0%
0
0%
0
0%
Albumin: >1.2xULN (N=15,15,12,11)
2
12.5%
0
0%
0
0%
0
0%
Potassium: <0.9xLLN (N=15,15,12,11)
0
0%
0
0%
0
0%
0
0%
Potassium: >1.1xULN (N=15,15,12,11)
1
6.3%
0
0%
1
8.3%
0
0%
Magnesium: <0.9xLLN (N=15,15,12,11)
0
0%
0
0%
0
0%
0
0%
Magnesium: >1.1xULN (N=15,15,12,11)
1
6.3%
2
13.3%
0
0%
1
9.1%
Phosphate: <0.8xLLN (N=15,15,12,11)
0
0%
0
0%
0
0%
0
0%
Phosphate: >1.2xULN (N=15,15,12,11)
0
0%
1
6.7%
1
8.3%
0
0%
Bicarbonate (venous): <0.9xLLN (N=15,15,12,11)
9
56.3%
11
73.3%
7
58.3%
3
27.3%
Bicarbonate (venous): >1.1xULN (N=15,15,12,11)
0
0%
0
0%
0
0%
0
0%
Glucose: <0.6xLLN (N=15,15,12,11)
1
6.3%
1
6.7%
0
0%
0
0%
Glucose: >1.5xULN (N=15,15,12,11)
0
0%
0
0%
0
0%
0
0%
Insulin-like GrowthFactor:<0.9xLLN(N=12,13,11,10)
0
0%
0
0%
1
8.3%
0
0%
Insulin-like GrowthFactor:>1.1xULN(N=12,13,11,10)
5
31.3%
8
53.3%
4
33.3%
6
54.5%
IGF Binding Protein: <0.9xLLN (N=12,13,11,10)
0
0%
0
0%
0
0%
0
0%
IGF Binding Protein: >1.1xULN (N=12,13,11,10)
4
25%
2
13.3%
5
41.7%
0
0%
Lipid profile cholesterol/triglycerides(N=1,4,0,1)
0
0%
0
0%
0
0%
0
0%

Adverse Events

Time Frame From Visit 1 to Visit 9 (Follow-up visit)
Adverse Event Reporting Description The same event may appear as both an AE and a SAE. However, what is presented are distinct events. An event may be categorized as serious in one participant and as nonserious in another participant, or one participant may have experienced both a serious and nonserious event during the study.
Arm/Group Title Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years Overall
Arm/Group Description Age group included 1-23 months. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months. Age group included 2-6 years. Pregabalin was administered orally as liquid formulation at dose of 2.5, 5, 7.5, 10, or 15 mg/kg/day for 12 Months.. Age group included 7-11 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. Age group included 12-16 years. Pregabalin was administered orally as capsule formulation and liquid formulation was used if participants was unable to swallow capsules. Doses of 2.5, 5, 7.5, 10, or 15 mg/kg/day were given for 12 Months. This arm summarizes the AE data from all the treatment groups.
All Cause Mortality
Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years Overall
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total / (NaN) / (NaN) / (NaN) / (NaN) / (NaN)
Serious Adverse Events
Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years Overall
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 8/16 (50%) 3/15 (20%) 0/12 (0%) 1/11 (9.1%) 12/54 (22.2%)
Blood and lymphatic system disorders
Thrombocytopenia 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Gastrointestinal disorders
Gastritis 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Gastrooesophageal reflux disease 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Ileus 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Salivary hypersecretion 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Infections and infestations
Croup infectious 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Otitis media acute 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Pneumonia 1/16 (6.3%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 2/54 (3.7%)
Respiratory syncytial virus bronchiolitis 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Upper respiratory tract infection 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Nervous system disorders
Convulsion 3/16 (18.8%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 3/54 (5.6%)
Status epilepticus 1/16 (6.3%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 2/54 (3.7%)
Unresponsive to stimuli 0/16 (0%) 0/15 (0%) 0/12 (0%) 1/11 (9.1%) 1/54 (1.9%)
Respiratory, thoracic and mediastinal disorders
Apnoea 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Bronchial hyperreactivity 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Respiratory distress 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Respiratory failure 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Other (Not Including Serious) Adverse Events
Pregabalin: 1-23 Months Pregabalin: 2-6 Years Pregabalin: 7-11 Years Pregabalin: 12-16 Years Overall
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 14/16 (87.5%) 13/15 (86.7%) 11/12 (91.7%) 9/11 (81.8%) 47/54 (87%)
Blood and lymphatic system disorders
Cyclic neutropenia 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Leukocytosis 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Neutropenia 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Normochromic normocytic anaemia 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Thrombocytosis 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Cardiac disorders
Bundle branch block left 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Congenital, familial and genetic disorders
Cryptorchism 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Ear and labyrinth disorders
Ear pain 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 1/11 (9.1%) 2/54 (3.7%)
Eye disorders
Astigmatism 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Conjunctivitis 1/16 (6.3%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 2/54 (3.7%)
Excessive eye blinking 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 1/54 (1.9%)
Hypermetropia 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Gastrointestinal disorders
Abdominal distension 2/16 (12.5%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 2/54 (3.7%)
Abdominal pain 3/16 (18.8%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 3/54 (5.6%)
Abdominal tenderness 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Constipation 5/16 (31.3%) 1/15 (6.7%) 1/12 (8.3%) 0/11 (0%) 7/54 (13%)
Diarrhoea 3/16 (18.8%) 3/15 (20%) 0/12 (0%) 0/11 (0%) 6/54 (11.1%)
Faeces pale 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Gastrooesophageal reflux disease 3/16 (18.8%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 3/54 (5.6%)
Retching 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Salivary hypersecretion 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Tooth impacted 0/16 (0%) 0/15 (0%) 0/12 (0%) 1/11 (9.1%) 1/54 (1.9%)
Vomiting 2/16 (12.5%) 1/15 (6.7%) 0/12 (0%) 1/11 (9.1%) 4/54 (7.4%)
General disorders
Chest pain 0/16 (0%) 0/15 (0%) 0/12 (0%) 1/11 (9.1%) 1/54 (1.9%)
Crying 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 1/54 (1.9%)
Fatigue 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Irritability 3/16 (18.8%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 3/54 (5.6%)
Pyrexia 9/16 (56.3%) 3/15 (20%) 0/12 (0%) 3/11 (27.3%) 15/54 (27.8%)
Thirst 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 1/54 (1.9%)
Infections and infestations
Bacterial sepsis 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Bronchitis 0/16 (0%) 0/15 (0%) 0/12 (0%) 1/11 (9.1%) 1/54 (1.9%)
Cystitis 0/16 (0%) 0/15 (0%) 0/12 (0%) 1/11 (9.1%) 1/54 (1.9%)
Device related infection 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Ear infection 0/16 (0%) 4/15 (26.7%) 1/12 (8.3%) 0/11 (0%) 5/54 (9.3%)
Eye infection 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Gastroenteritis 1/16 (6.3%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 2/54 (3.7%)
Hordeolum 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Nasopharyngitis 3/16 (18.8%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 3/54 (5.6%)
Otitis media 4/16 (25%) 4/15 (26.7%) 0/12 (0%) 0/11 (0%) 8/54 (14.8%)
Otitis media acute 2/16 (12.5%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 3/54 (5.6%)
Pharyngitis streptococcal 0/16 (0%) 2/15 (13.3%) 1/12 (8.3%) 0/11 (0%) 3/54 (5.6%)
Pharyngotonsillitis 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Pneumonia 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Rhinitis 2/16 (12.5%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 3/54 (5.6%)
Sinusitis 0/16 (0%) 0/15 (0%) 0/12 (0%) 1/11 (9.1%) 1/54 (1.9%)
Staphylococcal infection 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Tinea infection 0/16 (0%) 0/15 (0%) 0/12 (0%) 1/11 (9.1%) 1/54 (1.9%)
Upper respiratory tract infection 3/16 (18.8%) 5/15 (33.3%) 2/12 (16.7%) 0/11 (0%) 10/54 (18.5%)
Urinary tract infection 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 1/54 (1.9%)
Viral upper respiratory tract infection 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Injury, poisoning and procedural complications
Anal injury 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Arthropod bite 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 1/54 (1.9%)
Arthropod sting 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 1/54 (1.9%)
Excoriation 0/16 (0%) 0/15 (0%) 0/12 (0%) 2/11 (18.2%) 2/54 (3.7%)
Fall 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Foot fracture 0/16 (0%) 0/15 (0%) 0/12 (0%) 1/11 (9.1%) 1/54 (1.9%)
Laceration 0/16 (0%) 0/15 (0%) 0/12 (0%) 1/11 (9.1%) 1/54 (1.9%)
Investigations
Alanine aminotransferase increased 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 1/54 (1.9%)
Anticonvulsant drug level increased 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Blood thyroid stimulating hormone decreased 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Neutrophil count decreased 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Weight increased 0/16 (0%) 1/15 (6.7%) 1/12 (8.3%) 0/11 (0%) 2/54 (3.7%)
Metabolism and nutrition disorders
Dehydration 2/16 (12.5%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 3/54 (5.6%)
Hyperkalaemia 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Increased appetite 0/16 (0%) 1/15 (6.7%) 1/12 (8.3%) 0/11 (0%) 2/54 (3.7%)
Metabolic acidosis 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Polydipsia 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Musculoskeletal and connective tissue disorders
Muscle twitching 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 1/54 (1.9%)
Musculoskeletal pain 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Nervous system disorders
Cognitive disorder 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 1/54 (1.9%)
Convulsion 2/16 (12.5%) 1/15 (6.7%) 3/12 (25%) 1/11 (9.1%) 7/54 (13%)
Dizziness 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 1/11 (9.1%) 2/54 (3.7%)
Headache 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 1/54 (1.9%)
Lethargy 0/16 (0%) 2/15 (13.3%) 0/12 (0%) 1/11 (9.1%) 3/54 (5.6%)
Partial seizures 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Somnolence 2/16 (12.5%) 0/15 (0%) 1/12 (8.3%) 1/11 (9.1%) 4/54 (7.4%)
Status epilepticus 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Psychiatric disorders
Aggression 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 1/54 (1.9%)
Anger 0/16 (0%) 0/15 (0%) 0/12 (0%) 1/11 (9.1%) 1/54 (1.9%)
Attention deficit/hyperactivity disorder 0/16 (0%) 1/15 (6.7%) 1/12 (8.3%) 0/11 (0%) 2/54 (3.7%)
Depression 0/16 (0%) 0/15 (0%) 0/12 (0%) 1/11 (9.1%) 1/54 (1.9%)
Dissociation 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 1/54 (1.9%)
Dysphemia 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Dyssomnia 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Hallucination, visual 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 1/54 (1.9%)
Insomnia 1/16 (6.3%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 2/54 (3.7%)
Personality change 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Restlessness 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Renal and urinary disorders
Proteinuria 2/16 (12.5%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 3/54 (5.6%)
Urine odour abnormal 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Respiratory, thoracic and mediastinal disorders
Bronchospasm 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Cough 4/16 (25%) 2/15 (13.3%) 0/12 (0%) 0/11 (0%) 6/54 (11.1%)
Epistaxis 0/16 (0%) 2/15 (13.3%) 1/12 (8.3%) 1/11 (9.1%) 4/54 (7.4%)
Hypoxia 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Nasal congestion 2/16 (12.5%) 3/15 (20%) 1/12 (8.3%) 0/11 (0%) 6/54 (11.1%)
Productive cough 2/16 (12.5%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 3/54 (5.6%)
Respiratory distress 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Rhinorrhoea 1/16 (6.3%) 2/15 (13.3%) 0/12 (0%) 0/11 (0%) 3/54 (5.6%)
Rhonchi 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Snoring 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Upper-airway cough syndrome 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 1/54 (1.9%)
Wheezing 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Skin and subcutaneous tissue disorders
Dermatitis contact 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Dermatitis diaper 3/16 (18.8%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 4/54 (7.4%)
Pruritus 0/16 (0%) 0/15 (0%) 1/12 (8.3%) 0/11 (0%) 1/54 (1.9%)
Rash 0/16 (0%) 1/15 (6.7%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)
Surgical and medical procedures
Adenoidectomy 1/16 (6.3%) 0/15 (0%) 0/12 (0%) 0/11 (0%) 1/54 (1.9%)

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

Pfizer has the right to review disclosures, requesting a delay of less than 60 days. Investigator will postpone single center publications until after disclosure of pooled data (all sites), less than 12 months from study completion/termination at all participating sites. Investigator may not disclose previously undisclosed confidential information other than study results.

Results Point of Contact

Name/Title Pfizer ClinicalTrials.gov Call Center
Organization Pfizer, Inc.
Phone 1-800-718-1021
Email ClinicalTrials.gov_Inquiries@pfizer.com
Responsible Party:
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
ClinicalTrials.gov Identifier:
NCT00448916
Other Study ID Numbers:
  • A0081075
  • 2010-020731-39
First Posted:
Mar 19, 2007
Last Update Posted:
Jan 25, 2021
Last Verified:
Nov 1, 2014