Trial Outcomes & Findings for Phase IV Study of FDA Approved, Once-Daily GRALISE™(Gabapentin) Tablets for the Treatment of Postherpetic Neuralgia (NCT NCT01426230)

NCT ID: NCT01426230

Last Updated: 2013-03-21

Results Overview

Change from baseline in pain score on visual analog scale (VAS) (intensity scored from "No Pain" (0mm) to "Worst Possible Pain" (100mm)) at Week 8 of treatment; last observation carried forward (LOCF) analysis

Recruitment status

COMPLETED

Target enrollment

201 participants

Primary outcome timeframe

8 weeks (Baseline and Week 8)

Results posted on

2013-03-21

Participant Flow

201 patients were enrolled, but only 197 patients received study treatment.

Participant milestones

Participant milestones
Measure
Open Label - Cohort >70 Yrs Old
Cohort by age- \- Patients \>70 Yrs old
Open Label - Cohort <=70 Yrs Old
Cohort by age- \- Patients \<=70 Yrs old
Overall Study
STARTED
86
111
Overall Study
COMPLETED
55
84
Overall Study
NOT COMPLETED
31
27

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Phase IV Study of FDA Approved, Once-Daily GRALISE™(Gabapentin) Tablets for the Treatment of Postherpetic Neuralgia

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Open Label - Cohort <=70 Yrs Old
n=111 Participants
Cohort by age- \- Patients \<=70 Yrs old
Total
n=197 Participants
Total of all reporting groups
Open Label - Cohort >70 Yrs Old
n=86 Participants
Cohort by age- \- Patients \>70 Yrs old
Age, Categorical
<=18 years
1 Participants
n=7 Participants
1 Participants
n=5 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
65 Participants
n=7 Participants
65 Participants
n=5 Participants
0 Participants
n=5 Participants
Age, Categorical
>=65 years
45 Participants
n=7 Participants
131 Participants
n=5 Participants
86 Participants
n=5 Participants
Age Continuous
59.0 years
STANDARD_DEVIATION 10.42 • n=7 Participants
67.4 years
STANDARD_DEVIATION 12.79 • n=5 Participants
78.2 years
STANDARD_DEVIATION 5.28 • n=5 Participants
Sex: Female, Male
Female
75 Participants
n=7 Participants
122 Participants
n=5 Participants
47 Participants
n=5 Participants
Sex: Female, Male
Male
36 Participants
n=7 Participants
75 Participants
n=5 Participants
39 Participants
n=5 Participants
Region of Enrollment
United States
111 participants
n=7 Participants
197 participants
n=5 Participants
86 participants
n=5 Participants

PRIMARY outcome

Timeframe: 8 weeks (Baseline and Week 8)

Population: The Number of Participants Analyzed was based on the available VAS.

Change from baseline in pain score on visual analog scale (VAS) (intensity scored from "No Pain" (0mm) to "Worst Possible Pain" (100mm)) at Week 8 of treatment; last observation carried forward (LOCF) analysis

Outcome measures

Outcome measures
Measure
Open Label - Cohort >70 Yrs Old
n=80 Participants
Cohort by age- \- Patients \>70 Yrs old
Open Label - Cohort <=70 Yrs Old
n=110 Participants
Cohort by age- \- Patients \<=70 Yrs old
Change From Baseline to End of Study in LOCF VAS
-20.4 scores on a scale
Interval -26.5 to -14.4
-21.3 scores on a scale
Interval -26.8 to -15.8

Adverse Events

Open Label - Both Cohorts

Serious events: 5 serious events
Other events: 38 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Open Label - Both Cohorts
n=197 participants at risk
Cardiac disorders
Coronary artery disease
0.51%
1/197 • Number of events 1
Gastrointestinal disorders
Duodenal ulcer
0.51%
1/197 • Number of events 1
Infections and infestations
Pneumonia
0.51%
1/197 • Number of events 1
Metabolism and nutrition disorders
Gout
0.51%
1/197 • Number of events 1
Psychiatric disorders
Confusional state
0.51%
1/197 • Number of events 1
Renal and urinary disorders
Haematuria
0.51%
1/197 • Number of events 1

Other adverse events

Other adverse events
Measure
Open Label - Both Cohorts
n=197 participants at risk
Nervous system disorders
Dizziness
13.7%
27/197 • Number of events 28
Nervous system disorders
Somnolence
5.6%
11/197 • Number of events 11

Additional Information

Head of R&D

Depomed

Phone: 510-744-8000

Results disclosure agreements

  • Principal investigator is a sponsor employee Restriction Description: The PI agrees that sponsor shall have the right to the first publication of the study results which is intended to be a joint, multi-center publication. Following the first publication, the PI may publish study data or results, provided however PI submits the proposed publication to sponsor for review at least 60 days prior to the date of the proposed publication. Sponsor may remove any information that is considered confidential and/or proprietary other than study data.
  • Publication restrictions are in place

Restriction type: OTHER