Safety and Efficacy of Gabapentin in Postherpetic Neuralgia
Public ClinicalTrials.gov record NCT00636636. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Phase 3 Multicenter, Randomized, Double-Blind, Placebo-Controlled Study of the Safety and Efficacy of Gabapentin Extended Release (G-ER) Tablets in the Treatment of Patients With Postherpetic Neuralgia
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Gabapentin and pregabalin are treatments for some types of neuropathic pain, including postherpetic neuralgia (PHN). However, these treatments usually need to be taken 3 times a day for effective pain control. The purpose of this study is to determine whether a new gabapentin tablet, which only needs to be taken once a day, is safe and effective for the treatment of postherpetic neuralgia.
Study identification
- NCT ID
- NCT00636636
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 452 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Mar 2008 (Type not available)
- Primary completion
- Aug 2009 (Actual)
- Completion
- Sep 2009 (Actual)
- Last update posted
- Feb 22, 2012
2008 – 2009
United States locations
- U.S. sites
- 36
- U.S. states
- 22
- U.S. cities
- 36
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Not listed | Birmingham | Alabama | — | — |
| Not listed | Tuscaloosa | Alabama | — | — |
| Not listed | Phoenix | Arizona | — | — |
| Not listed | Little Rock | Arkansas | — | — |
| Not listed | Lancaster | California | — | — |
| Not listed | Los Angeles | California | — | — |
| Not listed | Pismo Beach | California | — | — |
| Not listed | Colorado Springs | Colorado | — | — |
| Not listed | Pueblo | Colorado | — | — |
| Not listed | Daytona Beach | Florida | — | — |
| Not listed | Naples | Florida | — | — |
| Not listed | New Port Richey | Florida | — | — |
| Not listed | Orlando | Florida | — | — |
| Not listed | Tampa | Florida | — | — |
| Not listed | Marietta | Georgia | — | — |
| Not listed | Honolulu | Hawaii | — | — |
| Not listed | Elk Grove Village | Illinois | — | — |
| Not listed | Shreveport | Louisiana | — | — |
| Not listed | West Yarmouth | Massachusetts | — | — |
| Not listed | Ann Arbor | Michigan | — | — |
| Not listed | Florissant | Missouri | — | — |
| Not listed | Jefferson City | Missouri | — | — |
| Not listed | Albuquerque | New Mexico | — | — |
| Not listed | High Point | North Carolina | — | — |
| Not listed | Bismarck | North Dakota | — | — |
| Not listed | Fargo | North Dakota | — | — |
| Not listed | Canton | Ohio | — | — |
| Not listed | Cincinnati | Ohio | — | — |
| Not listed | Kettering | Ohio | — | — |
| Not listed | Warwick | Rhode Island | — | — |
| Not listed | Murrells Inlet | South Carolina | — | — |
| Not listed | Pelzer | South Carolina | — | — |
| Not listed | Tullahoma | Tennessee | — | — |
| Not listed | Austin | Texas | — | — |
| Not listed | Longview | Texas | — | — |
| Not listed | Spokane | Washington | — | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 3 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00636636, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Feb 22, 2012 · Synced Oct 24, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00636636 live on ClinicalTrials.gov.