NCT00553475

Brief Summary

To evaluate the efficacy and safety of pregabalin at 300 mg/day and 600 mg/day (BID) in patients with painful diabetic peripheral neuropathy.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
314

participants targeted

Target at P50-P75 for phase_3

Timeline
Completed

Started Oct 2007

Geographic Reach
1 country

49 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

Study Start

First participant enrolled

October 1, 2007

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

November 2, 2007

Completed
3 days until next milestone

First Posted

Study publicly available on registry

November 5, 2007

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2009

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2009

Completed
1.3 years until next milestone

Results Posted

Study results publicly available

June 22, 2010

Completed
Last Updated

January 25, 2021

Status Verified

July 1, 2010

Enrollment Period

1.4 years

First QC Date

November 2, 2007

Results QC Date

March 10, 2010

Last Update Submit

January 21, 2021

Conditions

Outcome Measures

Primary Outcomes (16)

  • Change From Baseline to Study Endpoint in Mean Weekly Pain Scores

    Change from baseline: Score at study endpoint minus score at baseline. Study endpoint is defined as the mean of the last seven entries of the daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) while on study medication up to and including day after last dose.

    From baseline to Week 13 or up to study discontinuation (Study Endpoint)

  • Change From Baseline to Study Endpoint in Mean Weekly Pain Scores by Groups of Subjects With Expected Similar Plasma Concentrations

    Change from baseline: Score at study endpoint minus score at baseline. Study endpoint is defined as the mean of the last seven entries of the daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) while on study medication up to and including day after last dose. Subjects are classified by exposure to pregabalin, which is estimated by creatinine clearance (CLcr).

    From baseline to Week 13 or up to study discontinuation (Study Endpoint)

  • Number of Responders

    A responder is defined as a subject with a 50% reduction in weekly mean pain score from baseline to study endpoint.

    From baseline to Week 13 or up to study discontinuation (Study Endpoint)

  • Change From Baseline at Week 1 in Mean Weekly Pain Scores

    The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 1. Change from baseline: Score at Week 1 minus score at baseline

    From baseline to Week 1

  • Change From Baseline at Week 2 in Mean Weekly Pain Scores

    The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 2. Change from baseline: Score at Week 2 minus score at baseline

    From baseline to Week 2

  • Change From Baseline at Week 3 in Mean Weekly Pain Scores

    The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 3. Change from baseline: Score at Week 3 minus score at baseline

    From baseline to Week 3

  • Change From Baseline at Week 4 in Mean Weekly Pain Scores

    The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 4. Change from baseline: Score at Week 4 minus score at baseline

    From baseline to Week 4

  • Change From Baseline at Week 5 in Mean Weekly Pain Scores

    The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 5. Change from baseline: Score at Week 5 minus score at baseline

    From baseline to Week 5

  • Change From Baseline at Week 6 in Mean Weekly Pain Scores

    The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 6. Change from baseline: Score at Week 6 minus score at baseline

    From baseline to Week 6

  • Change From Baseline at Week 7 in Mean Weekly Pain Scores

    The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 7. Change from baseline: Score at Week 7 minus score at baseline

    From baseline to Week 7

  • Change From Baseline at Week 8 in Mean Weekly Pain Scores

    The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 8. Change from baseline: Score at Week 8 minus score at baseline

    From baseline to Week 8

  • Change From Baseline at Week 9 in Mean Weekly Pain Scores

    The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 9. Change from baseline: Score at Week 9 minus score at baseline

    From baseline to Week 9

  • Change From Baseline at Week 10 in Mean Weekly Pain Scores

    The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 10. Change from baseline: Score at Week 10 minus score at baseline

    From baseline to Week 10

  • Change From Baseline at Week 11 in Mean Weekly Pain Scores

    The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 11. Change from baseline: Score at Week 11 minus score at baseline

    From baseline to Week 11

  • Change From Baseline at Week 12 in Mean Weekly Pain Scores

    The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 12. Change from baseline: Score at Week 12 minus score at baseline

    From baseline to Week 12

  • Change From Baseline at Week 13 in Mean Weekly Pain Scores

    The mean change from baseline in mean weekly pain score from daily pain diary using the 11-point numerical rating scale 0(no pain) to 10(worst possible pain) at Week 13. Change from baseline: Score at Week 13 minus score at baseline

    From baseline to Week 13

Secondary Outcomes (23)

  • Change From Baseline in Short Form 36-Item (SF-36) Health Survey: Physical Functioning

    From baseline to Week 13 or up to study discontinuation (Study Endpoint)

  • Change From Baseline in Short Form 36-Item (SF-36) Health Survey: Role Limitations-Physical

    From baseline to Week 13 or up to study discontinuation (Study Endpoint)

  • Change From Baseline in Short Form 36-Item (SF-36) Health Survey: Bodily Pain

    From baseline to Week 13 or up to study discontinuation (Study Endpoint)

  • Change From Baseline in Short Form 36-Item (SF-36) Health Survey: General Health Perception

    From baseline to Week 13 or up to study discontinuation (Study Endpoint)

  • Change From Baseline in Short Form 36-Item (SF-36) Health Survey: Social Functioning

    From baseline to Week 13 or up to study discontinuation (Study Endpoint)

  • +18 more secondary outcomes

Study Arms (3)

Placebo

PLACEBO COMPARATOR
Drug: placebo

Pregabalin 300 mg/day

EXPERIMENTAL
Drug: pregabalin

Pregabalin 600 mg/day

EXPERIMENTAL
Drug: pregabalin

Interventions

Dosage: placebo, oral administration, Treatment duration: 13 weeks (1-week titration and 12-week fixed dose)

Placebo

Dosage: 300 mg/day (150 mg bid), oral administration, Treatment duration: 13 weeks (1-week titration and 12-week fixed dose)

Pregabalin 300 mg/day

Eligibility Criteria

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

You may qualify if:

  • Visual Analogue Scale (VAS) of pain is higher than 40 mm.
  • Diagnosis of type 1 or 2 diabetes mellitus for at least 1 year

You may not qualify if:

  • Malignancy within the past 2 years.
  • Neurologic disorders unrelated to diabetic neuropathy that may confuse the assessment of neuropathy pain

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (49)

Pfizer Investigational Site

Nagoya, Aichi-ken, Japan

Location

Pfizer Investigational Site

Chikushino-shi, Fukuoka, Japan

Location

Pfizer Investigational Site

Kasuga, Fukuoka, Japan

Location

Pfizer Investigational Site

Date-shi, Fukushima, Japan

Location

Pfizer Investigational Site

Nihommatsu, Fukushima, Japan

Location

Pfizer Investigational Site

Shirakawa-shi, Fukushima, Japan

Location

Pfizer Investigational Site

Sukagawa, Fukushima, Japan

Location

Pfizer Investigational Site

Kure, Hiroshima, Japan

Location

Pfizer Investigational Site

Chitose, Hokkaido, Japan

Location

Pfizer Investigational Site

Ebetu, Hokkaido, Japan

Location

Pfizer Investigational Site

Sapporo, Hokkaido, Japan

Location

Pfizer Investigational Site

Sapporo, Hokkaiido, Japan

Location

Pfizer Investigational Site

Kobe, Hyōgo, Japan

Location

Pfizer Investigational Site

Inashiki, Ibaraki, Japan

Location

Pfizer Investigational Site

Kamakura, Kanagawa, Japan

Location

Pfizer Investigational Site

Yokohama, Kanagawa, Japan

Location

Pfizer Investigational Site

Yatsushiro, Kumamoto, Japan

Location

Pfizer Investigational Site

Sendai, Miyagi, Japan

Location

Pfizer Investigational Site

Matsumoto, Nagano, Japan

Location

Pfizer Investigational Site

Ueda, Nagano, Japan

Location

Pfizer Investigational Site

Beppu, Oita Prefecture, Japan

Location

Pfizer Investigational Site

Yamada, Okayama-ken, Japan

Location

Pfizer Investigational Site

Naha, Okinawa, Japan

Location

Pfizer Investigational Site

Tomishiro, Okinawa, Japan

Location

Pfizer Investigational Site

Urazoe, Okinawa, Japan

Location

Pfizer Investigational Site

Higashiosaka, Osaka, Japan

Location

Pfizer Investigational Site

Hirano-ku, Osaka, Japan

Location

Pfizer Investigational Site

Kishiwada, Osaka, Japan

Location

Pfizer Investigational Site

Suminoe-ku, Osaka, Japan

Location

Pfizer Investigational Site

Sunto-gun, Shizuoka, Japan

Location

Pfizer Investigational Site

Oyama-shi, Tochigi, Japan

Location

Pfizer Investigational Site

Utsunomiya, Tochigi, Japan

Location

Pfizer Investigational Site

Arakawa City, Tokyo, Japan

Location

Pfizer Investigational Site

Bunkyo-ku, Tokyo, Japan

Location

Pfizer Investigational Site

Chiyoda-ku, Tokyo, Japan

Location

Pfizer Investigational Site

Chuo-ku, Tokyo, Japan

Location

Pfizer Investigational Site

Minato-ku, Tokyo, Japan

Location

Pfizer Investigational Site

Nishitōkyō, Tokyo, Japan

Location

Pfizer Investigational Site

Ohta-ku, Tokyo, Japan

Location

Pfizer Investigational Site

Shibuya-ku, Tokyo, Japan

Location

Pfizer Investigational Site

Fukuoka, Japan

Location

Pfizer Investigational Site

Kumamoto, Japan

Location

Pfizer Investigational Site

Nagasaki, Japan

Location

Pfizer Investigational Site

Niigata, Japan

Location

Pfizer Investigational Site

Okayama, Japan

Location

Pfizer Investigational Site

Ōita, Japan

Location

Pfizer Investigational Site

Saga, Japan

Location

Pfizer Investigational Site

Saitama, Japan

Location

Pfizer Investigational Site

Tokushima, Japan

Location

Related Publications (5)

  • Alexander J Jr, Edwards RA, Manca L, Grugni R, Bonfanti G, Emir B, Whalen E, Watt S, Brodsky M, Parsons B. Integrating Machine Learning With Microsimulation to Classify Hypothetical, Novel Patients for Predicting Pregabalin Treatment Response Based on Observational and Randomized Data in Patients With Painful Diabetic Peripheral Neuropathy. Pragmat Obs Res. 2019 Oct 31;10:67-76. doi: 10.2147/POR.S214412. eCollection 2019.

  • Alexander J Jr, Edwards RA, Brodsky M, Manca L, Grugni R, Savoldelli A, Bonfanti G, Emir B, Whalen E, Watt S, Parsons B. Using time series analysis approaches for improved prediction of pain outcomes in subgroups of patients with painful diabetic peripheral neuropathy. PLoS One. 2018 Dec 6;13(12):e0207120. doi: 10.1371/journal.pone.0207120. eCollection 2018.

  • Edwards RA, Bonfanti G, Grugni R, Manca L, Parsons B, Alexander J. Predicting Responses to Pregabalin for Painful Diabetic Peripheral Neuropathy Based on Trajectory-Focused Patient Profiles Derived from the First 4 Weeks of Treatment. Adv Ther. 2018 Oct;35(10):1585-1597. doi: 10.1007/s12325-018-0780-3. Epub 2018 Sep 11.

  • Parsons B, Li C, Emir B, Vinik AI. The efficacy of pregabalin for treating pain associated with diabetic peripheral neuropathy in subjects with type 1 or type 2 diabetes mellitus. Curr Med Res Opin. 2018 Nov;34(11):2015-2022. doi: 10.1080/03007995.2018.1509304. Epub 2018 Sep 20.

  • Markman JD, Jensen TS, Semel D, Li C, Parsons B, Behar R, Sadosky AB. Effects of Pregabalin in Patients with Neuropathic Pain Previously Treated with Gabapentin: A Pooled Analysis of Parallel-Group, Randomized, Placebo-controlled Clinical Trials. Pain Pract. 2017 Jul;17(6):718-728. doi: 10.1111/papr.12516. Epub 2016 Dec 1.

Related Links

MeSH Terms

Conditions

Diabetic Neuropathies

Interventions

Pregabalin

Condition Hierarchy (Ancestors)

Peripheral Nervous System DiseasesNeuromuscular DiseasesNervous System DiseasesDiabetes ComplicationsDiabetes MellitusEndocrine System Diseases

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
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 2, 2007

First Posted

November 5, 2007

Study Start

October 1, 2007

Primary Completion

March 1, 2009

Study Completion

March 1, 2009

Last Updated

January 25, 2021

Results First Posted

June 22, 2010

Record last verified: 2010-07

Locations