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Osteoarthritis, KneePhase 3NCT00950651

A Comparison of the Analgesic Efficacy and Safety of Once Daily Tramadol HCl / Contramid® Tablets to Twice Daily Tramadol HCl (SR) for the Treatment of Osteoarthritis of the Knee

A Phase 3 study testing Tramadol HCl Contramid® Once A Day and Tramadol HCl Twice a day in people with Osteoarthritis, Knee and Pain, run by Labopharm Inc..

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

A randomised, multi-centre, double-blind, double dummy, two arm parallel design study to compare the efficacy, safety, and clinical benefit of the test and reference product after treatment for 84 days in patients with osteoarthritis of the knee. Read more about this study

Who is it for?
Ages 40 to 75 years
Conditions the study is for
Osteoarthritis, Knee, Pain
What is being tested?
Tramadol HCl Contramid® Once A Day and Tramadol HCl Twice a day
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
431 participants
Where
No sites listed yet
Study dates
Mar 2002to Nov 2002
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Males or Females between the ages of 40 and 75 with a diagnosis of Osteoarthritis (OA) of the knee consistent with the American College of Rheumatology (ACR) Clinical Classification Criteria for Arthritis of the Knee (Altman, R. et al., 1986):
  • Knee pain at study enrolment,
  • 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 1 year prior to entry into the study.
  • ESR < 40 mm/h
  • Western Ontario and McMaster University Osteoarthritis Index (WOMAC) Pain Subscales total score equal to or more than 150 mm at baseline.
  • Oral and written language comprehension at a level sufficient to comply with the protocol and complete study-related materials.
  • The Patient signed and dated the (IEC) approved, written, informed consent prior to study participation

Who cannot join

  • Known rheumatoid arthritis or any other rheumatoid disease.
  • 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.
  • Obesity Class II [body mass index (BMI) equal to or more than 35 kg/m2] (NIH, 2000)
  • Major illness that required hospitalisation during the 3 months before commencement of the screening period.
  • Unwillingness to cease taking medication other than the study medication for arthritic pain, any other concomitant pain, or OA medications.
  • Patients who had previously failed tramadol HCl therapy or those who discontinued tramadol HCl due to AEs.
Show all 17Show fewer
  • Patients who within the 3 weeks prior to study entry took 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.
  • Patients who took another investigational agent within the 30 days prior to study entry.
  • Patients with a history of seizure disorder other than Infantile Febrile Seizures.
  • Patients who were opioid dependent.
  • Patients with bowel disease causing malabsorption.
  • Patients who were pregnant or lactating or patients of child-bearing potential who were unwilling to utilise a medically approved method of contraception during participation in this clinical trial.
  • Patients with significant liver disease, defined as active hepatitis or elevated liver enzymes >3 times the upper boundary of the normal range.
  • Patients with significant renal disease, defined as creatinine clearance <30 mL/min as estimated by the method of Levey et al., 1999.
  • Current substance abuse or dependence, other than nicotine.
  • Allergy or adverse reaction to tramadol or any structurally similar drugs e.g. opiates.
  • Any other condition that, in the opinion of the investigators, adversely affected the patient's ability to complete the study or its measures.

About this study

Official title: A Comparison of the Analgesic Efficacy and Safety of Once Daily Tramadol HCl / Contramid® Tablets to Twice Daily Tramadol HCl (SR) for the Treatment of Osteoarthritis of the Knee.

A randomised, multi-centre, double-blind, double dummy, two arm parallel design study to compare the efficacy, safety, and clinical benefit of the test and reference product after treatment for 84 days in patients with osteoarthritis of the knee.

Being tested
Tramadol HCl Contramid® Once A Day, Tramadol HCl Twice a day
Medical subject headings
Osteoarthritis, Knee, Pain

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Tramadol HCl Contramid® Once A DayDrug

    The patients orally self-administered the study medication: either 100, 200, 300 or 400 mg Tramadol HCl Contramid® Once A Day. Each patient was titrated to his or her optimum dose (up to a maximum of 400 mg) during the Titration Phase, which lasted between 4 and 12 days. The optimum dose was taken throughout the study.

  • Tramadol HCl Twice a dayDrug

    The patients orally self-administered the study medication: either 200, 300 or 400 mg Tramadol HCl Twice a day. Each patient was titrated to his or her optimum dose (up to a maximum of 400 mg) during the Titration Phase, which lasted between 4 and 12 days. The optimum dose was taken throughout the study.

Study groups in NCT00950651
Study groupRoleWhat they receive
1 Tramadol HCl Contramid® Once A DayExperimentalNot described
Receives: Drug: Tramadol HCl Contramid® Once A Day
2 Tramadol HCl Twice a day (SR)Active comparatorNot described
Receives: Drug: Tramadol HCl Twice a day

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Change From Baseline in WOMAC Pain Subscale Score at Week 12

    The WOMAC is a statistically validated, 24-item questionnaire assessing current OA symptoms and functional limitations. The Pain subscale score consists of 5 items each rated on a 100mm VAS scale (0mm=no pain to 100mm=extreme pain). In case of premature discontinuation, the last assessment was used to calculate the percentage of change.

    Measured: Baseline to week 12

Secondary outcomes (20)
  1. Arthritis Pain at the End of Dosing Interval (24-hour Efficacy)

    Each day before morning dose, patients assessed arthritis pain in worst knee in a diary using a 5-point rating scale ranging from none to severe. A median score was estimated for each patient each week and re-categorized into different degrees of pain (rounding off to the closest integer). Results are of 12th week (day 78-84).

    Measured: 12 weeks

  2. Percentage of Change From Baseline in WOMAC Stiffness Subscale Score at Week 12

    The WOMAC is a statistically validated, 24-item questionnaire assessing current OA symptoms and functional limitations. Stiffness subscale score consists of 2 items each rated on 100mm VAS scale (0mm=no stiffness to 100mm=extreme stiffness). In case of premature discontinuation, the last assessment was used to calculate the percentage of change.

    Measured: Baseline to week 12

  3. Percentage of Change From Baseline in WOMAC Physical Function Subscale Score at Week 12

    The WOMAC is a statistically validated, 24-item questionnaire assessing current OA symptoms and functional limitations. Physical Function subscale score consists of 17 items rated on a 100mm VAS scale (0mm=no difficulty to 100mm=extreme difficulty). In case of premature discontinuation, the last assessment was used to calculate percentage of change

    Measured: Baseline to week 12

  4. Percentage of Change From Baseline in WOMAC Total Score at Week 12

    The WOMAC is a statistically validated, 24-item questionnaire assessing current OA symptoms and functional limitations. Each item is rated on a 100mm VAS scale (0mm=no pain/stiffness/difficulty to 100mm=extreme no pain/stiffness/difficulty). In case of premature discontinuation, the last assessment was used to calculate percentage of change.

    Measured: Baseline to week 12

  5. Percentage of Change From Baseline in Current Pain at Week 12

    Pain Visual Analogue Scales: Current Pain. Patients indicated their current pain using a 100mm VAS scale ranging from 0=no pain to 100=extreme pain. The percentage of change in current pain was calculated from baseline to week 12. In case of premature discontinuation, the last assessment was used to calculate percentage of change.

    Measured: Baseline to week 12

  6. Percentage of Change From Baseline in Least Pain Within Last 24 Hours at Week 12

    Patients indicated their Least Pain Within Last 24 Hours using a 100mm VAS scale ranging from 0=no pain to 100=extreme pain. The percentage of change was calculated from baseline to week 12. In case of premature discontinuation, the last assessment was used to calculate percentage of change.

    Measured: Baseline to week 12

  7. Percentage of Change From Baseline in Worst Pain Within Last 24 Hours at Week 12

    Patients indicated their Worst Pain Within Last 24 Hours using a 100mm VAS scale ranging from 0=no pain to 100=extreme pain. The percentage of change was calculated from baseline to week 12. In case of premature discontinuation, the last assessment was used to calculate percentage of change.

    Measured: Baseline to week 12

  8. Percentage of Change From Baseline in Average Pain Within Last 24 Hours at Week 12

    Patients indicated their Average Pain Within Last 24 Hours using a 100mm VAS scale ranging from 0=no pain to 100=extreme pain. The percentage of change was calculated from baseline to week 12. In case of premature discontinuation, the last assessment was used to calculate percentage of change.

    Measured: Baseline to week 12

  9. Percentage of Change From Baseline in Walking Time for 15 Meters at Week 12

    The walking test is a measure of how many seconds it takes the patient to walk a distance of 15 meters. The change from baseline to week 12 was calculated.

    Measured: Baseline to week 12

  10. Patient Global Rating of Pain Relief at Week 12

    The Patient Global Rating of Pain is a Likert-scale that answers the question: "How do you rate overall pain relief with the drug?" with 4 possible answers that were dichotomized: "very effective", "effective", and "somewhat effective" were summarized to "effective"; "not effective" remained unchanged.

    Measured: 12 Weeks

  11. Patient Global Assessment: Side Effects Interfering With Day to Day Activities at Week 12

    Patients were asked: "How have any side effects you may have felt from the drug interfered with day-to-day activities?" with 4 possible answers: "Significantly", "Somewhat", "Minimally", "Not at all".

    Measured: 12 weeks

  12. Patient Global Assessment: Current Pain Relief Versus Pain Relief During Previous Tramadol Treatment at Week 12

    Patients who have previously taken tramadol HCl were asked to compare how they compare the current pain relief to the pain relief felt when previously taking tramadol, using a 4-point Likert-scale: "Worse than before", "Same as before", "Somewhat better now", or "Much better now".

    Measured: 12 weeks

  13. Patient Global Assessment: Current Interfering Side Effects Versus Pain Relief During Previous Tramadol Treatment at Week 12

    Patients who have previously taken tramadol HCl were asked: "Compared to when you were previously taking tramadol, how have any side effects you have felt during this study interfered with your day-to-day activities?". Possible answers were: "Interfered much less now", "Interfered somewhat less now", "Same as before", "Interfered more now".

    Measured: 12 weeks

  14. Physician Overall Rating: Overall Assessment at Week 12

    The physician was asked to indicate his overall assessment of the formulation the patient was taking using a 4-point Likert-scale dichotomized for the analysis: Very Effective, Effective, and Somewhat Effective were summarized to Effective; Ineffective remained unchanged.

    Measured: 12 weeks

  15. Physician Overall Rating: Effectiveness of Pain Control 24 Hours After the Most Recent Dose of Tramadol at Week 12

    The physician was asked to indicate the effectiveness of pain control 24 hours after the most recent dose of tramadol using a 4-point Likert-scale, dichotomized for the analysis: Very Effective, Effective, Somewhat Effective were summarized to Effective; Ineffective remained unchanged.

    Measured: 12 weeks

  16. Patient Diary: Pain (Between Visit Means) at Week 12

    As part of the daily diary for the entire study, patients rated the arthritis pain in their worst knee using a five-point scale ranging from 1=none to 5=severe. Mean scores summarizing the entries of the preceding period were calculated.

    Measured: 12 weeks

  17. Patient Diary: Stiffness (Between Visit Means) at Week 12

    As part of the daily diary for the entire study, patients rated the stiffness in their worst knee using a five-point scale ranging from 1=none to 5=severe. Mean scores summarizing the entries of the preceding period were calculated.

    Measured: 12 weeks

  18. Patient Diary: Ability Getting Things Done (Between Visit Means) at Week 12

    As part of the daily diary for the entire study, patients rated their ability to get things done with their worst knee using a five-point scale ranging from: 1=No problem to 5=A lot of things didn't get done. Mean scores summarizing the entries of the preceding period were calculated.

    Measured: 12 weeks

  19. Patient Diary: Difficulty With Walking (Between Visit Means) at Week 12

    As part of the daily diary for the entire study, patients rated their difficulty walking with their worst knee using a five-point scale ranging from 1=No problem to 5=Severe difficulty. Mean scores summarizing the entries of the preceding period were calculated.

    Measured: 12 weeks

  20. Patient Diary: Difficulty With Stairs (Between Visit Means) at Week 12

    As part of the daily diary for the entire study, patients rated their difficulty with stairs with their worst knee using a five-point scale ranging from 1=No problem to 5=Severe difficulty. Mean scores summarizing the entries of the preceding period were calculated.

    Measured: 12 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Aug 2009 (estimated)
  2. Study startMar 2002
  3. Primary completionNov 2002
  4. Study completionNov 2002

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
431 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00950651
Sponsor's protocol ID
MDT3-001-E1
Other IDs
NCT00950651
Status last verified
Apr 2012
First submitted
14 Apr 2009
Last updated
30 Apr 2012

Publications

  • Mongin G, Yakusevich V, Kope A, Shostak N, Pikhlak E, Popdan L, Simon J, Navarro C, Fortier L, Robertson S, Bouchard S. Efficacy and Safety Assessment of a Novel Once-Daily Tablet Formulation of Tramadol : A Randomised, Controlled Study versus Twice-Daily Tramadol in Patients with Osteoarthritis of the Knee. Clin Drug Investig. 2004;24(9):545-58. doi: 10.2165/00044011-200424090-00005.

    PubMed 17523716

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Tramadol HCl Contramid® Once A Day and Tramadol HCl Twice a day in people with Osteoarthritis, Knee and Pain, run by Labopharm Inc..

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 17 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 30 Apr 2012. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 3 Aug 2009). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of Change From Baseline in WOMAC Pain Subscale Score at Week 12 (time frame: Baseline to week 12). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00950651, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Apr 2012.

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