An Open-Label Long-term Safety Study of Tramadol HCl OAD (Once A Day) 300 mg in the Treatment of Pain Due to Osteoarthritis of the Knee

NCT ID: NCT00833911

Last Updated: 2012-04-30

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE3
• Total Enrollment: 392 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2003-04-30
• Study Completion Date: 2004-07-31

Brief Summary

The purpose of this study is to collect information regarding the long-term (6 and 12 months) safety of Tramadol HCl Once-A-Day(OAD) 300 mg.

Conditions

Osteoarthritis, Knee

Keywords

Moderate to severe symptomatic osteoarthritis of the knee

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Tramadol Contramid® OAD

Group Type: EXPERIMENTAL

Tramadol Once A Day

Intervention Type: DRUG

Interventions

Tramadol Once A Day

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

1. Male or Female patients between the ages of 40-75 with a diagnosis of Osteoarthritis of the knee consistent with the American College of Rheumatology (ACR) Clinical Classification Criteria for Arthritis of the Knee (Altman, R. et al., 1991):

• Current knee pain,
• Less than 30 minutes of morning stiffness with or without crepitus on active motion,
• Confirmation either by arthroscopy or radiologist's report (X-rays showing osteophytes, joint space narrowing or subchondral bone sclerosis {eburnation}) within two years prior to entry into the study.

2. Erythrocyte Sedimentation Rate (ESR) < 40 mm/hour.

3. Western Ontario and McMaster Osteoarthritis Index (WOMAC) Pain Subscale total score of >= 150 mm at baseline. (5 questions/100 mm scale each with an averaged response of 30 mm or higher per question).

4. Oral and written language comprehension at a level sufficient to comply with the protocol and complete study-related materials.

5. The Patient has signed and dated the Research Ethics Board (REB) approved, written, informed consent prior to study participation.

Exclusion Criteria

1. Known rheumatoid arthritis or any other rheumatoid disease.

2. Secondary arthritis i.e. any of the following: septic arthritis; inflammatory joint disease; gout; pseudogout; Paget's disease; joint fracture; acromegaly; fibromyalgia; Wilson's disease; Ochronosis; Haemochromatosis; Osteochondromatosis; heritable arthritic disorders; or collagen gene mutations.

3. Obesity Class II (Body Mass Index (BMI) >= 35) (National Institutes of Health (NIH), 2000).

4. Major illness requiring hospitalization during the 3 months before commencement of the screening period.

5. Patients who are unwilling to stop taking pain medication other than the study medication (for arthritis or other types of pain) or are unwilling to stop taking other medications for the treatment of osteoarthritis (OA).

6. Patients who have previously failed tramadol hydrochloride (HCl) therapy or those who discontinued tramadol HCl due to adverse events.

7. Patients who are taking or within the last 3 weeks have taken the following medications: monoamine oxidase inhibitors; tricyclic antidepressants and other tricyclic compounds (e.g. cyclobenzaprine, promethazine); neuroleptics; selective serotonin reuptake inhibitors; or other drugs which reduce seizure threshold.

8. Patients who are taking or have taken another investigational agent within the last 30 days.

9. Patients with a history of seizure disorder other than Infantile Febrile Seizures.

10. Patients who are opioid dependent.

11. Patients with bowel disease causing malabsorption.

12. Patients who are pregnant or lactating or patients of child-bearing potential who are unwilling to utilize a medically approved method of contraception during participation in this clinical trial.

13. Patients with significant liver disease, defined as active hepatitis or elevated liver enzymes >3 times the upper boundary of the normal range.

14. Patients with significant renal disease, defined as creatinine clearance <30 mL/min as estimated by the method of Levey et al., 1999.

15. Current substance abuse or dependence, other than nicotine.

16. Allergy or adverse reaction to tramadol or any structurally similar drugs e.g. opiates.

17. Any other condition that, in the opinion of the investigators, would adversely affect the patient's ability to complete the study or its measures.

• Minimum Eligible Age: 40 Years
• Maximum Eligible Age: 75 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Labopharm Inc.

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

References

Mongin G. Tramadol extended-release formulations in the management of pain due to osteoarthritis. Expert Rev Neurother. 2007 Dec;7(12):1775-84. doi: 10.1586/14737175.7.12.1775.

Reference Type: RESULT

PMID: 18052769 (View on PubMed)

Related Links

http://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?id=9048

Approved labelling

Other Identifiers

NCT00833911

Identifier Type: REGISTRY

Identifier Source: secondary_id

MDT3-004

Identifier Type: -

Identifier Source: org_study_id