Trial Outcomes & Findings for Extension Study Of Long-Term Safety And Efficacy Of Pregabalin As Monotherapy (Lyrica) In Patients With Partial Seizures (NCT NCT00596466)

NCT ID: NCT00596466

Last Updated: 2021-01-26

Results Overview

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

75 participants

Primary outcome timeframe

Baseline up to Week 28

Results posted on

2021-01-26

Participant Flow

Participants were eligible for the current study A0081160 (NCT00596466) if they adequately responded to pregabalin treatment in protocol A0081047 (NCT00524030).

Participant milestones

Participant milestones
Measure
Pregabalin
Pregabalin capsules, 300 milligrams per day (mg/day) twice daily (BID) for 24 weeks. Dose adjustments of pregabalin permitted (range of 150-600 mg, BID) based on investigator judgment.
Overall Study
STARTED
75
Overall Study
Enrolled, Treated
73
Overall Study
COMPLETED
58
Overall Study
NOT COMPLETED
17

Reasons for withdrawal

Reasons for withdrawal
Measure
Pregabalin
Pregabalin capsules, 300 milligrams per day (mg/day) twice daily (BID) for 24 weeks. Dose adjustments of pregabalin permitted (range of 150-600 mg, BID) based on investigator judgment.
Overall Study
Lack of Efficacy
5
Overall Study
Adverse Event
4
Overall Study
Withdrawal by Subject
2
Overall Study
Protocol Violation
2
Overall Study
Unpecified
2
Overall Study
Enrolled, not treated
2

Baseline Characteristics

Extension Study Of Long-Term Safety And Efficacy Of Pregabalin As Monotherapy (Lyrica) In Patients With Partial Seizures

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Pregabalin
n=75 Participants
Pregabalin capsules, 300 milligrams per day (mg/day) twice daily (BID) for 24 weeks. Dose adjustments of pregabalin permitted (range of 150-600 mg, BID) based on investigator judgment.
Age, Customized
18-44 years
48 Participants
n=39 Participants
Age, Customized
45-64 years
23 Participants
n=39 Participants
Age, Customized
Greater than or equal to (≥) 65 years
4 Participants
n=39 Participants
Sex: Female, Male
Female
38 Participants
n=39 Participants
Sex: Female, Male
Male
37 Participants
n=39 Participants

PRIMARY outcome

Timeframe: Baseline up to Week 28

Population: Not analyzed; Per protocol, seizure frequency data for individual participants were collected and reviewed but no statistical inferences were conducted because there was no comparator agent for this study.

Outcome measures

Outcome data not reported

PRIMARY outcome

Timeframe: Baseline up to Week 28

Population: Safety analysis set population: all participants who received at least 1 dose of pregabalin.

Counts of participants who had treatment-emergent adverse events (TEAEs), defined as newly occurring or worsening after first dose. Participants with multiple occurrences of an AE within a category were counted once within the category.

Outcome measures

Outcome measures
Measure
Pregabalin
n=73 Participants
Pregabalin capsules, 300 milligrams per day (mg/day) twice daily (BID) for 24 weeks. Dose adjustments of pregabalin permitted (range of 150-600 mg, BID) based on investigator judgment.
Number of Participants With (All Causality) Adverse Events (AEs) and Serious Adverse Events (SAEs)
Non-serious AEs
30 Participants
Number of Participants With (All Causality) Adverse Events (AEs) and Serious Adverse Events (SAEs)
Serious AEs (SAEs)
3 Participants

PRIMARY outcome

Timeframe: Baseline up to Week 28

Population: Safety analysis set population; Number of participants analyzed (N): participants with at least one observation of any given laboratory test while on study.

Pre-defined criteria were established for each laboratory test (hematology, blood chemistry and urinalysis) to define the values that would be identified as of potential clinical importance.

Outcome measures

Outcome measures
Measure
Pregabalin
n=72 Participants
Pregabalin capsules, 300 milligrams per day (mg/day) twice daily (BID) for 24 weeks. Dose adjustments of pregabalin permitted (range of 150-600 mg, BID) based on investigator judgment.
Number of Participants With Laboratory Test Values of Potential Clinical Importance
17 Participants

Adverse Events

Pregabalin

Serious events: 3 serious events
Other events: 14 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Pregabalin
n=73 participants at risk
Pregabalin capsules, 300 milligrams per day (mg/day) twice daily (BID) for 24 weeks. Dose adjustments of pregabalin permitted (range of 150-600 mg, BID) based on investigator judgment.
Injury, poisoning and procedural complications
Road traffic accident
1.4%
1/73
The same event may appear as both an AE and an 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.
Nervous system disorders
Convulsion
2.7%
2/73
The same event may appear as both an AE and an 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.
Nervous system disorders
Transient ischaemic attack
1.4%
1/73
The same event may appear as both an AE and an 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.

Other adverse events

Other adverse events
Measure
Pregabalin
n=73 participants at risk
Pregabalin capsules, 300 milligrams per day (mg/day) twice daily (BID) for 24 weeks. Dose adjustments of pregabalin permitted (range of 150-600 mg, BID) based on investigator judgment.
Gastrointestinal disorders
Nausea
5.5%
4/73
The same event may appear as both an AE and an 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.
Investigations
Weight increased
4.1%
3/73
The same event may appear as both an AE and an 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.
Musculoskeletal and connective tissue disorders
Arthralgia
4.1%
3/73
The same event may appear as both an AE and an 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.
Nervous system disorders
Convulsion
4.1%
3/73
The same event may appear as both an AE and an 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.
Nervous system disorders
Headache
5.5%
4/73
The same event may appear as both an AE and an 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.

Additional Information

Pfizer ClinicalTrials.gov Call Center

Pfizer, Inc.

Phone: 1-800-718-1021

Results disclosure agreements

  • Principal investigator is a sponsor employee 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.
  • Publication restrictions are in place

Restriction type: OTHER