A Post-Marketing Clinical Pharmacokinetics Study Of Gabapentin In Japanese Epileptic Subjects With Renal Impairment

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The primary objectives of this study are to evaluate the pharmacokinetics (PK) following administration of gabapentin in Japanese epileptic patients with renal impairment to confirm if there are any clinically relevant differences between the plasma gabapentin concentration simulated by population PK model, which was used for the evidence of the dose adjustment for the patients with renal...

Brief Summary

Official Title: “A Post-Marketing Clinical Pharmacokinetics Study Of Gabapentin In Japanese Epileptic Subjects With Renal Impairment”

The primary objectives of this study are to evaluate the pharmacokinetics (PK) following administration of gabapentin in Japanese epileptic patients with renal impairment to confirm if there are any clinically relevant differences between the plasma gabapentin concentration simulated by population PK model, which was used for the evidence of the dose adjustment for the patients with renal impairment, and observed plasma gabapentin concentration.

  • Study Type: Interventional
  • Study Design: Allocation: Non-Randomized, Endpoint Classification: Pharmacokinetics Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
  • Study Primary Completion Date: April 2010

Detailed Clinical Trial Description

Only one subject was able to be enrolled. Given enrollment challenges to identify additional appropriate subjects, discussion was held with the Japan Pharmaceuticals and Medical Devices Agency (PMDA) and it was agreed with the PMDA to terminate this study. The study was terminated on December 14, 2010. The study was not terminated due to any safety findings.

Intervention(s) in this Clinical Trial

  • Drug: Gabapentin
    • 100-200mg once a day
  • Drug: Gabapentin
    • 200-500mg once a day
  • Drug: Gabapentin
    • 400-1000mg (200-500 mg twice a day)

Arms, Groups and Cohorts in this Clinical Trial

  • Experimental: 1: Patients with Cleatinine Clearance (CLcr) 5-14 mL/min
  • Experimental: 2: Patients with CLcr 15-29 mL/min
  • Experimental: 3: Patients with CLcr 30-59 mL/min

Outcome Measures for this Clinical Trial

Primary Measures

  • Observed Plasma Gabapentin Concentration
    • Time Frame: Days 8 and 15
      Safety Issue?: No
  • Ratio of Observed Plasma Gabapentin Concentration to Predicted Plasma Gabapentin Concentration Based on Population Pharmacokinetics Model
    • Time Frame: Days 8 and 15
      Safety Issue?: No
  • Ratio of Observed Plasma Gabapentin Concentration to Individual Predicted Plasma Gabapentin Concentration
    • Time Frame: Days 8 and 15
      Safety Issue?: No

Criteria for Participation in this Clinical Trial

Inclusion Criteria:

  • Japanese epilepsy patients with renal impairment

Exclusion Criteria:

  • NA

Gender Eligibility for this Clinical Trial: Both

Minimum Age for this Clinical Trial: 20 Years

Maximum Age for this Clinical Trial: 64 Years

Are Healthy Volunteers Accepted for this Clinical Trial?: No

Clinical Trial Investigator Information

Lead Investigator: Pfizer Industry

Overall Clinical Trial Officials and Contacts

Pfizer CT.gov Call Center Study Director Pfizer  

Additional Information

Information obtained from ClinicalTrials.gov on February 02, 2012

Link to the current ClinicalTrials.gov record. http://clinicaltrials.gov/show/NCT00785772

Study ID Number: A9451169

ClinicalTrials.gov Identifier: NCT00785772

Health Authority: Japan: Ministry of Health, Labor and Welfare

To obtain contact information for a study center near you, click here.

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http://clinicaltrialsfeeds.org/clinical-trials/show/NCT00785772