NCT00141219

Brief Summary

To evaluate the efficacy of pregabalin, using a flexible, optimized dose schedule with dose adjustment based on Daily Pain Rating Scale (DPRS), compared to placebo in subjects with peripheral neuropathic pain.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
241

participants targeted

Target at P50-P75 for phase_3

Timeline
Completed

Started Dec 2005

Geographic Reach
1 country

10 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 30, 2005

Completed
2 days until next milestone

First Posted

Study publicly available on registry

September 1, 2005

Completed
3 months until next milestone

Study Start

First participant enrolled

December 1, 2005

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2007

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2007

Completed
1.3 years until next milestone

Results Posted

Study results publicly available

March 13, 2009

Completed
Last Updated

February 9, 2021

Status Verified

September 1, 2009

Enrollment Period

2 years

First QC Date

August 30, 2005

Results QC Date

December 19, 2008

Last Update Submit

January 21, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • Daily Pain Rating Scale (DPRS)- Mean Pain Score (ITT Population)

    DPRS is 11-point rating scale from 0 (no pain) to 10 (worst possible pain). Subjects instructed to describe their pain (daily upon awakening) during preceding 24 hrs by choosing the appropriate number between 0-10. Mean endpoint pain score was obtained from the last 7 available DPRS scores of the daily pain diary while subject on study medication.

    Endpoint- Week 8 or Early Discontinuation

Secondary Outcomes (21)

  • Daily Pain Rating Scale (DPRS)- Number of 30% Responders (With Respect to Pain Scores)

    Endpoint- Week 8 or Early Discontinuation

  • Daily Pain Rating Scale (DPRS)- Number of 50% Responders (With Respect to Pain Scores)

    Endpoint- Week 8 or Early Discontination

  • Daily Pain Rating Scale (DPRS)- Weekly Mean Pain Score

    Weeks 1 to 8

  • Duration Adjusted Average Change (DAAC) of (Adjusted) Mean Pain Score

    Weeks 1 to 8

  • Mean Sleep Interference Score Based on Daily Sleep Interference Scale (DSIS).

    Endpoint- Week 8 or Early Discontinuation

  • +16 more secondary outcomes

Other Outcomes (1)

  • Daily Pain Rating Scale (DPRS)- Mean Pain Scores (Evaluable Population)

    Endpoint- Week 8 or Early Discontinuation

Study Arms (2)

1

EXPERIMENTAL
Drug: pregabalin

2

PLACEBO COMPARATOR
Drug: Placebo

Interventions

150-600mg/day, BID

1

Placebo

2

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of peripheral neuropathic pain syndrome, including diabetic peripheral neuropathy (DPN), postherpetic neuralgia (PHN), or post-traumatic neuropathic pain (including post-surgical), confirmed by a qualified pain specialist.
  • Subjects must have completed at least 4 daily pain diaries during the 7 days prior to Visit 2 and have an average pain score of ≥4 over the 7 days prior to Visit 2 (randomization).

You may not qualify if:

  • Neurologic disorders unrelated to DPN, PHN, or post-traumatic neuropathic pain (including post-surgical), that may confuse or confound the assessment of neuropathic pain.
  • Presence of any severe pain associated with conditions other than DPN, PHN, or post-traumatic neuropathic pain (including post-surgical) that may confound the assessment or self evaluation of the pain due to DPN, PHN, or post-traumatic neuropathic pain (including post-surgical).
  • Creatinine clearance \< 30 mL/min (estimated from serum creatinine, body weight, age, and sex using the Cockcroft and Gault equation in Appendix E). Maximum dose for subjects with creatinine clearance of 30 to 60 mL/min is 300 mg/day

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (10)

Pfizer Investigational Site

Sungnam-si, Gyeonggi-do, 463-802, South Korea

Location

Pfizer Investigational Site

Suwon, Gyeonggi-do, 443-721, South Korea

Location

Pfizer Investigational Site

Busan, 602-739, South Korea

Location

Pfizer Investigational Site

Daegu, 705-715, South Korea

Location

Pfizer Investigational Site

Gwangju, 501-757, South Korea

Location

Pfizer Investigational Site

Seoul, 110-744, South Korea

Location

Pfizer Investigational Site

Seoul, 120-752, South Korea

Location

Pfizer Investigational Site

Seoul, 130-702, South Korea

Location

Pfizer Investigational Site

Seoul, 135-720, South Korea

Location

Pfizer Investigational Site

Seoul, 137-701, South Korea

Location

Related Links

MeSH Terms

Conditions

Diabetic NeuropathiesNeuralgia

Interventions

Pregabalin

Condition Hierarchy (Ancestors)

Peripheral Nervous System DiseasesNeuromuscular DiseasesNervous System DiseasesDiabetes ComplicationsDiabetes MellitusEndocrine System DiseasesPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

gamma-Aminobutyric AcidAminobutyratesButyratesAcids, AcyclicCarboxylic AcidsOrganic ChemicalsAmino AcidsAmino Acids, Peptides, and Proteins

Results Point of Contact

Title
Pfizer ClinicalTrials.gov Call Center
Organization
Pfizer, Inc.

Study Officials

  • Pfizer CT.gov Call Center

    Pfizer

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 30, 2005

First Posted

September 1, 2005

Study Start

December 1, 2005

Primary Completion

December 1, 2007

Study Completion

December 1, 2007

Last Updated

February 9, 2021

Results First Posted

March 13, 2009

Record last verified: 2009-09

Locations