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Evaluation of Clinical Endpoints of Two Diclofenac Sodium Gel 1%

Information source: Anchen Pharmaceuticals, Inc
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Osteo Arthritis of the Knee

Intervention: Diclofenac (Drug); Placebo (Drug)

Phase: Phase 3

Status: Completed

Sponsored by: Anchen Pharmaceuticals, Inc

Summary

The objective of this study is to evaluate the clinical equivalence and safety of the Test formulation of diclofenac sodium topical gel 1% (Anchen Pharmaceuticals, Inc.) compared to the marketed formulation Voltaren® Gel (diclofenac sodium topical gel) 1% (Novartis) in patients with osteoarthritis of the knee. The efficacy of both the Test and Reference formulations will also be compared to the Placebo gel to determine Superiority.

Clinical Details

Official title: A Double-Blind, Randomized, Placebo-Controlled, Parallel Group, Multi-Site Study to Evaluate the Clinical Equivalence of Diclofenac Sodium 1% Gel (Anchen Pharmaceuticals, Inc.) With Voltaren® Gel (Diclofenac Sodium Topical Gel) 1% (Novartis) in Patients With Osteoarthritis of the Knee

Study design: Allocation: Randomized, Endpoint Classification: Bio-equivalence Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment

Primary outcome: Mean Change from Baseline in WOMAC Pain Scale

Secondary outcome: Superiority of Test and Reference against Placebo in the Mean Change from baseline in the total WOMAC pain score.

Eligibility

Minimum age: 35 Years. Maximum age: N/A. Gender(s): Both.

Criteria:

Inclusion Criteria: 1. Ambulatory Male and Non Pregnant Females 35 years and older diagnosed with osteoarthritis (according to the American College of Rheumatology Criteria) in one or both knees. ACR Criteria includes, Knee Pain and at least 3 of the following: 1. age ≥ 50 2. stiffness lasting < 30 mins 3. bony tenderness 4. crepitus 5. bony enlargement 6. no palpable warmth 2. Symptom onset of > 6 Months prior to Screening for the target knee. 3. If female and of child-bearing potential, prepare to abstain from sexual intercourse or use a reliable method of contraception during the study (e. g., condom + spermicide, IUD, oral, transdermal, injected or implanted hormonal contraceptives). 4. Periarticular knee pain due to osteoarthritis (not bursitis, tendonitis etc) requiring the use of oral or topical treatments (NSAIDS or acetaminophen) for > 15 days in the 30 days prior to Screening. 5. Radiograph of the target knee within the previous year with a Grade 1, 2 or 3 disease based upon the Kellgren-Lawrence disease severity scale. 6. After a 7 day wash out of all pain medication has baseline pain on movement score of ≥ 50mm on a 100-mm Visual Analogue Scale for the target knee. 7. After a 7 day wash out of all pain medication has baseline WOMAC pain sub scale of ≥ 9 on a 5 question, 5 point (0 to 4) Likert scale for the target knee. 8. Willing and able to use only acetaminophen as rescue medication 9. Willing and able to comply with the study requirements. Exclusion Criteria: 1. Females who are pregnant, breast feeding, or planning a pregnancy 2. Radiograph of the target knee within the previous year with a Grade 4 score on the Kellgren-Lawrence disease severity scale. 24 3. History of osteoarthritis in the contralateral knee requiring medication (OTC or prescription) within 12 months of screening. 4. After a 7 day wash out of all pain medication has baseline pain on movement score of ≥ 20mm on a 100-mm Visual Analogue Scale for the contralateral knee immediately prior to randomization. 5. Known history of secondary osteoarthritis (e. g. congenital, traumatic, gouty arthritis) or rheumatoid arthritis. 6. Known history of other chronic inflammatory diseases, (e. g.,colitis) or fibromyalgia. 7. History of asthma, hypertension, myocardial infarction, thrombotic events, stroke, congestive heart failure, impaired renal function or liver disease. 8. History of coronary artery bypass graft within 6 months of screening. 9. Concomitant acetylsalicylic acid therapy other than a stable low dose used for cardiac prophylaxis (max 162mg daily) taken for at least 3 months prior to enrollment and maintained throughout the duration of the study. 10. Use of warfarin or other anticoagulant therapy within 30 days of screening. 11. Use of ACE inhibitors, cyclosporine, diuretics, lithium or methotrexate, within 30 days of screening or during the study. 12. Known history of gastrointestinal bleeding or peptic ulcer disease. 13. Abnormal screening clinical laboratory evaluations which the Investigator determines are clinically significant. 14. Known allergy to aspirin or NSAIDs. 15. Results from liver function tests that are more than two times the upper limit of the normal range at screening. 16. Any other acute or chronic illness that in the opinion of the investigator could compromise the integrity of study data or place the Patient at risk by participating in the study. 17. Concomitant use of corticosteroids (any formulation) or use within 30 days of study randomization. 18. Receipt of any drug as part of a research study within 30 days prior to screening. 19. Previous participation in this study.

Locations and Contacts

Novum Investigator Site, Birmingham, Alabama, United States

Novum Investigator Site, Huntsville, Alabama, United States

Novum Investigator Site, Chandler, Arizona, United States

Novum Investigator Site, Mesa, Arizona, United States

Novum Investigator Site, Phoenix, Arizona, United States

Novum Investigator Site, Tuscon, Arizona, United States

Novum Investigator Site, Little Rock, Arkansas, United States

Novum Investigator Site, Anaheim, California, United States

Novum Investigator Site, Carmichael, California, United States

Novum Investigator Site, Garden Grove, California, United States

Novum Investigator Site, Long Beach, California, United States

Novum Investigator Site, Sacramento, California, United States

Novum Investigator Site, San Diego, California, United States

Novum Investigator Site, Stock Bridge, California, United States

Novum Investigator Site, Denver, Colorado, United States

Novum Investigator Site, Norwalk, Connecticut, United States

Novum Investigator Site, Stamford, Connecticut, United States

Novum Investigator Site, Adventura, Florida, United States

Novum Investigator Site, Bookville, Florida, United States

Novum Investigator Site, Bradenton, Florida, United States

Novum Investigator Site, Daytona Beach, Florida, United States

Novum Investigator Site, Hialeah, Florida, United States

Novum Investigator Site, Jupiter, Florida, United States

Novum Investigator Site, Miami, Florida, United States

Novum Investigator Site, Ormond Beach, Florida, United States

Novum Investigator Site, Pinellas Park, Florida, United States

Novum Investigator Site, Sarasota, Florida, United States

Novum Investigator Site, St. Petersburg, Florida, United States

Novum Investigator Site, Tampa, Florida, United States

Novum Investigator Site, Marietta, Georgia, United States

Novum Investigator Site, Sandy Springs, Georgia, United States

Novum Investigator Site, Lexington, Kentucky, United States

Novum Investigator Site, New Orleans1, Louisiana, United States

Novum Investigator Site, Hollywood, Maryland, United States

Novum Investigator Site, Billings, Montana, United States

Novum Investigator Site, Henderson, Nevada, United States

Novum Investigator Site, Cary, North Carolina, United States

Novum Investigator Site, Charlotte, North Carolina, United States

Novum Investigator Site, Hickory, North Carolina, United States

Novum Investigator Site, High Point, North Carolina, United States

Novum Investigator Site, Raleigh, North Carolina, United States

Novum Investigator Site, Salisbury, North Carolina, United States

Novum Investigator Site, Wilmington, North Carolina, United States

Novum Investigator Site, Winston-Salem, North Carolina, United States

Novum Investigator Site, Cleveland, Ohio, United States

Novum Investigator Site, Columbus, Ohio, United States

Novum Investigator Site, Beavercreek, Oklahoma, United States

Novum Investigator Site, Norman, Oklahoma, United States

Novum Investigator Site, Duncansville, Pennsylvania, United States

Novum Investigator Site, Chattanooga, Tennessee, United States

Novum Investigator Site, Houston, Texas, United States

Novum Investigator Site, Longview, Texas, United States

Novum Investigator Site, San Antonio, Texas, United States

Novum Investigator Site, Sugar Land, Texas, United States

Novum Investigator Site, Charlottesville, Virginia, United States

Novum Investigator Site, Midlothian, Virginia, United States

Novum Investigator Site, Newport News, Virginia, United States

Additional Information

Starting date: September 2011
Last updated: July 10, 2012

Page last updated: August 23, 2015

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