CClinicalTrials.gg
CompletedNCT01426230Updated Mar 21, 2013Results posted

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

An observational study in Post Herpetic Neuralgia, sponsored by Depomed. Completed at 37 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2013-03-21.

Sponsored by Depomed · Observational

Study type
Observational
Time perspective
Prospective
Enrollment
201
Ages
18 Years and older
Sex
All
01

Study summary

Study objective is to assess the safety and effectiveness of once- daily GRALISE in clinical practice

Read the detailed description

Open Label, single arm, 2wk titration, 6 wk stable dosing, 8 wk of total treatment, 1wk dose tapering

02

Conditions studied

  • Post Herpetic Neuralgia

Keywords

  • PHN
  • Post Herpetic Neuralgia
  • Shingles
  • HZ roster
03

In context

Neuralgia

1,287 studies on the registry are indexed under Neuralgia; 256 are open to participants now.

This study's enrollment of 201 is above the median of 100 across 260 observational studies indexed under Neuralgia.

Browse Neuralgia studies →

Lead sponsor

Depomed is the lead sponsor of 14 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Patients currently suffering from Post Herpetic Neuralgia

Inclusion criteria

  • Men or Women 18 years or older who are suffering from PHN

Exclusion criteria

Exclusion Criteria:

  • Patient is Pregnant or a nursing mother
  • Patient has hypersensitivity to gabapentin
  • Patient has an estimated creatinine clearance of \<30 mL/min or is in hemodialysis
05

Study design

Time perspective
Prospective
Enrollment
201 participants (actual)

Groups and cohorts

  • Open Label

    Cohort by age- - Patients \>70 Yrs old

  • Open label

    Cohort by age- - Patients \< 70 Yrs old

06

What researchers measure

Primary outcomes

  1. Change From Baseline to End of Study in LOCF 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

    Time frame: 8 weeks (Baseline and Week 8)

07

Results

Posted Mar 21, 2013

Participant flow

Participant flow — Overall Study
MilestoneOpen Label - Cohort >70 Yrs OldOpen Label - Cohort <=70 Yrs Old
Started86111
Completed5584
Not completed3127

Outcome measures

PrimaryChange From Baseline to End of Study in LOCF 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

Time frame:
8 weeks (Baseline and Week 8)
Reported as:
Mean · scores on a scale
Change From Baseline to End of Study in LOCF VAS
scores on a scaleOpen Label - Cohort >70 Yrs OldOpen Label - Cohort <=70 Yrs Old
Change From Baseline to End of Study in LOCF VAS-20.4 (-26.5 to -14.4)-21.3 (-26.8 to -15.8)

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Open Label - Both Cohorts—5/197 (2.5%)38/197 (19.3%)
Most frequent serious events
Most frequent serious events
EventOpen Label - Both Cohorts
Coronary artery diseaseCardiac disorders1/197
Duodenal ulcerGastrointestinal disorders1/197
PneumoniaInfections and infestations1/197
GoutMetabolism and nutrition disorders1/197
Confusional statePsychiatric disorders1/197
HaematuriaRenal and urinary disorders1/197
Most frequent other events
Most frequent other events
EventOpen Label - Both Cohorts
DizzinessNervous system disorders27/197
SomnolenceNervous system disorders11/197

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Open Label - Cohort >70 Yrs OldOpen Label - Cohort <=70 Yrs OldTotal
<=18 years011
Between 18 and 65 years06565
>=65 years8645131
Age Continuous
Age Continuous(years)Open Label - Cohort >70 Yrs OldOpen Label - Cohort <=70 Yrs OldTotal
Mean78.2 ± 5.2859.0 ± 10.4267.4 ± 12.79
Sex: Female, Male
Sex: Female, Male(Participants)Open Label - Cohort >70 Yrs OldOpen Label - Cohort <=70 Yrs OldTotal
Female4775122
Male393675
Region of Enrollment
Region of Enrollment(participants)Open Label - Cohort >70 Yrs OldOpen Label - Cohort <=70 Yrs OldTotal
United States86111197
08

Study locations

37 sites
  • Mobile, Alabama, United States
  • Tuscaloosa, Alabama, United States
  • Phoenix, Arizona, United States
  • Sun City, Arizona, United States
  • Tucson, Arizona, United States
  • Fresno, California, United States
  • San Francisco, California, United States
  • Fairfield, Connecticut, United States
  • Lauderdale Lakes, Florida, United States
  • Naples, Florida, United States
  • North Palm Beach, Florida, United States
  • Ormond Beach, Florida, United States
  • Palm Beach, Florida, United States
  • Sunrise, Florida, United States
  • Marietta, Georgia, United States
  • Bolingbrook, Illinois, United States
  • Evansville, Indiana, United States
  • Lexington, Kentucky, United States
  • Brighton, Massachusetts, United States
  • Worcestor, Massachusetts, United States
  • Jefferson City, Missouri, United States
  • St. Louis, Missouri, United States
  • Tom River, New Jersey, United States
  • Hickory, North Carolina, United States
  • Raleigh, North Carolina, United States
  • Allentown, Pennsylvania, United States
  • Altoona, Pennsylvania, United States
  • Wyomissing, Pennsylvania, United States
  • Mt. Pleasant, South Carolina, United States
  • Cordova, Tennessee, United States
  • Austin, Texas, United States
  • Bedford, Texas, United States
  • Corpus Christi, Texas, United States
  • Houston, Texas, United States
  • San Antonio, Texas, United States
  • Orem, Utah, United States
  • Edmonds, Washington, United States
09

References and documents

Publications

  • Mehta N, Bucior I, Bujanover S, Shah R, Gulati A. Relationship between pain relief, reduction in pain-associated sleep interference, and overall impression of improvement in patients with postherpetic neuralgia treated with extended-release gabapentin. Health Qual Life Outcomes. 2016 Apr 1;14:54. doi: 10.1186/s12955-016-0456-0. PubMed 27037091 ↗
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 21, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01426230
Lead sponsor
Depomed
Responsible party
Sponsor
First posted
Aug 31, 2011
Start date
Sep 2011
Primary completion
Mar 2012
Completion
Apr 2012
Results posted
Mar 21, 2013
Last update
Mar 21, 2013

Study contacts

Rekha Sathyanarayana
study director · Depomed Clinical Operations

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Mar 2013. You cannot join it, but the record below documents what was studied.

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