Randomized, Double-Blind, Placebo-Controlled, Phase 2 Study In Subjects With Osteoarthritic Pain Of The Knee
A 2-WEEK, RANDOMIZED, DOUBLE BLIND, PLACEBO CONTROLLED, PARALLEL-GROUP, PHASE 2, MULTICENTER STUDY OF PF-04136309 IN SUBJECTS WITH OSTEOARTHRITIC PAIN OF THE KNEE
1 other identifier
interventional
159
2 countries
22
Brief Summary
To evaluate the efficacy, safety, tolerability, pharmacodynamics, and pharmacokinetics in patients with osteoarthritic pain of the knee. The most painful knee joint will be identified as the index joint at screening, and this joint will be used for all pain assessments throughout the study.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Aug 2008
Shorter than P25 for phase_2
22 active sites
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
May 30, 2008
CompletedFirst Posted
Study publicly available on registry
June 3, 2008
CompletedStudy Start
First participant enrolled
August 5, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 27, 2008
CompletedStudy Completion
Last participant's last visit for all outcomes
November 27, 2008
CompletedResults Posted
Study results publicly available
July 13, 2021
CompletedJuly 13, 2021
June 1, 2021
4 months
May 30, 2008
June 21, 2021
June 21, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change From Baseline in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Domain Score at Week 2
WOMAC: self-administered, disease-specific 24 item questionnaire which assesses clinically important, participant-relevant symptoms for pain, stiffness, and physical function in participants with osteoarthritis (OA) of the hip and/or knee. It consists of 3 domains: pain, stiffness and physical function. WOMAC pain domain consists of 5 questions scored on 5 point Likert scale (0=minimum pain to 4=maximum pain) where higher score indicates higher pain. It assesses amount of pain experienced due to OA in the study joint in past 48 hours. Total possible pain domain score calculated by addition of scores of each 5 questions ranged from: 0 (minimum) - 20 (maximum), higher scores indicate higher pain.
Baseline, Week 2
Secondary Outcomes (9)
Change From Baseline in WOMAC Pain Domain Score at Week 1
Baseline, Week 1
Change From Baseline in WOMAC Stiffness Domain Score at Week 1 and Week 2
Baseline, Weeks 1, 2
Change From Baseline in WOMAC Physical Function Domain Score at Week 1 and Week 2
Baseline, Weeks 1, 2
Change From Baseline in WOMAC Total Score at Week 1 and Week 2
Baseline, Weeks 1, 2
Change From Baseline in WOMAC Importance Weighted Total Score at Week 1 and Week 2
Baseline, Weeks 1, 2
- +4 more secondary outcomes
Other Outcomes (11)
Number of Participants With Treatment Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs)
From Baseline up to 30 days after last dose of study drug (up to Day 44)
Number of Participants With Treatment Emergent Treatment Related AEs and SAEs
From Baseline up to 30 days after last dose of study drug (up to Day 44)
Number of Participants Who Discontinued Due to Treatment Emergent AEs and Treatment Emergent Treatment Related AEs
From Baseline up to 30 days after last dose of study drug (up to Day 44)
- +8 more other outcomes
Study Arms (2)
PF-04136309
EXPERIMENTALPlacebo
PLACEBO COMPARATORInterventions
125 mg capsules. Dose will be 4 capsules BID for 2 weeks for a total of 500 mg for each dosing interval.
Placebo will be matched to PF-04136309. Dose, frequency, and duration same as PF-04136309.
Eligibility Criteria
You may qualify if:
- Male or female of any race, between the ages of 18 and 75 years inclusive
- Female subjects must be of non-childbearing potential and have a negative pregnancy test at Screening.
- Osteoarthritis of the knee of at least 6 months duration and meeting the American College of Rheumatology Criteria. For radiographic criteria the Xray must have been taken within the last 5 years. If none is available, one should be taken and the diagnostic criteria confirmed prior to randomization.
- Willing and able to discontinue all current analgesic therapy, including OTC pain medications and topical analgesics for OA pain, for period beginning with washout phase (lasting 2 days or 5 half-lives of patient's current analgesic medication prior to Day -6) and continuing for the entire duration of study. As an exception, acetaminophen may be used for non-joint related pain at doses ≤1 g/day at the discretion of a qualified member of the study team.
- If a subject has evidence or a history of clinically significant endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, renal, psychiatric, or neurological disease, the investigator must confirm that the disease is stable (at least 4 weeks) and under control.
- QTc interval ≤450 msec and a PR interval ≤210 msec on Screening ECG.
You may not qualify if:
- Pregnant or lactating females, and females of childbearing potential.
- Arthroscopy performed on index knee within 1 year of screening.
- Active depression as defined by or meeting The Hospital Anxiety and Depression Scale (HADS) of \>10.
- Unwillingness to refrain from consumption of grapefruit or grapefruit juice from 7 days prior to the first dose of study medication until completion of the study.
- First degree or higher AV block, defined as PR interval \>210 msecs, bundle branch block, fascicular block or intraventricular conduction delay or clinically relevant abnormality on screening ECG.
- Active malignancy of any type or history of a malignancy within 10 years (with the exception of subjects with a history of treated basal cell carcinoma).
- Symptomatic OA of the hip ipsilateral to index knee which the patient considers more painful than the knee.
- Use of prohibited medications as listed below, in the absence of appropriate washout period. The following analgesic agents must be discontinued within 48 hours or 5 half lives of the analgesic being washed out prior to the baseline period (Day -6 to Day 0);
- NSAIDs and selective COX-2 inhibitors;
- Acetaminophen ( as an exception acetaminophen may be used for non-joint related pain at doses ≤1g/day);
- Opioids.
- Oral or I/M corticosteroids within 4 weeks prior to screening. I/A steroids within 12 weeks prior to baseline in study joint or any other joints within 4 weeks prior to baseline, or I/A hyaluronic acid within 24 weeks prior to baseline;
- Use of concomitant medications that are CYP3A inhibitors or CYP3A inducers, or that are P-glycoprotein substrates within 48 hours or 5 half lives prior to baseline.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Pfizerlead
Study Sites (22)
University Clinical Research-DeLand, LLC
DeLand, Florida, 32720, United States
Arthritis & Rheumatic Care Center
South Miami, Florida, 33143, United States
Miami Research Associates
South Miami, Florida, 33143, United States
Diagnostic Imaging Centers
Overland Park, Kansas, 66212, United States
Vince and Associates Clinical Research
Overland Park, Kansas, 66212, United States
Commonwealth Biomedical Research, LLC
Madisonville, Kentucky, 42431, United States
Covenant Health and Wellness Center
Chesterfield, Missouri, 63005, United States
Metro Imaging St. Peters
City of Saint Peters, Missouri, 63376, United States
Metro Imaging West County
Creve Coeur, Missouri, 63141, United States
Analgesic Development Limited
New York, New York, 10022-1009, United States
New Horizons Clinical Research
Cincinnati, Ohio, 45242, United States
Omega Medical Research
Warwick, Rhode Island, 02886, United States
Statcare
Warwick, Rhode Island, 02886, United States
Diagnostics Research Group
San Antonio, Texas, 78229, United States
South Texas Radiology Group
San Antonio, Texas, 78229, United States
Commonwealth Orthopaedics and Rehabilitation PC
Arlington, Virginia, 22205, United States
IntegraTrials, LLC
Arlington, Virginia, 22205, United States
United Hospital Center Clinical Trials Office
Clarksburg, West Virginia, 26301, United States
Seoul National University Hospital
Seoul, 110-744, South Korea
Severance Hospital, Yonsei University College of Medicine
Seoul, 120-752, South Korea
Samsung Medical Center
Seoul, 135-710, South Korea
Asan Medical Center
Seoul, 138-736, South Korea
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Pfizer ClinicalTrials.gov Call Center
- Organization
- Pfizer Inc.
Study Officials
- STUDY DIRECTOR
Pfizer CT.gov Call Center
Pfizer
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 30, 2008
First Posted
June 3, 2008
Study Start
August 5, 2008
Primary Completion
November 27, 2008
Study Completion
November 27, 2008
Last Updated
July 13, 2021
Results First Posted
July 13, 2021
Record last verified: 2021-06
Data Sharing
- IPD Sharing
- Will share
Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.