Trial to Assess Efficacy and Safety of Lacosamide in Subjects With Osteoarthritis of the Knee
|Study Design:||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Investigator)
Primary Purpose: Treatment
|Official Title:||A Multicenter, Randomized, Double-blind, Placebo-controlled Trial to Assess the Efficacy and Safety of 400mg/Day Lacosamide in Subjects With Osteoarthritis of the Knee|
- Change of the Western Ontario and McMaster Universities (WOMAC) Pain Subscale Score (Visual Analogue Scale Version) From Baseline to the End of the 8 Week Maintenance Period [ Time Frame: Baseline, end of 8 week Maintenance Period ]The Visual Analogue Scale (VAS) version of the WOMAC pain subscale ranges from 0 to 100, high values describe high grade of pain.
- Change From Baseline to End of 8 Week Maintenance Period in WOMAC Physical Function Subscale Score. [ Time Frame: Baseline, end of 8 week Maintenance Period ]The WOMAC physical function subscale score (Visual Analogue Scale version) ranges from 0 to 100, high values describe high grade of difficulty in performing daily activities.
- Change From Baseline to End of 8 Week Maintenance Period in WOMAC Stiffness Subscale Score. [ Time Frame: Baseline, end of 8 week Maintenance Period ]The WOMAC stiffness subscale score (Visual Analogue Scale version) ranges from 0 to 100, high values describe high grade of stiffness.
- Change From Baseline to End of 8 Week Maintenance Period in Total WOMAC Score. [ Time Frame: Baseline, end of 8 week Maintenance Period ]The WOMAC total score is the sum of the normalized subscale scores for pain, stiffness, and physical function and ranges from 0 to 300, high values describe high grade of impact.
- Patient's Global Impression of Change From Baseline at the End of 8 Week Maintenance Period. [ Time Frame: at the end of 8 week Maintenance Period ]Patient's global impression of change from baseline is a score that ranges from 'very much worse' to 'very much improved'.
- Response at the End of 8 Week Maintenance Period Versus Baseline Based on the (Slightly Modified)Criteria of the Osteoarthritis Research Society International (OARSI) and the Outcome Measures in Rheumatology Initiative (OMERACT). [ Time Frame: Baseline, end of 8 week Maintenance Period ]Improvement = reduction of >= 20% and >= 10 mm in both WOMAC pain and physical function subscale. Those who met the criteria in either of the subscales had improved if response to Patient's Global Impression of change from baseline was at least 'mildly improved'. High improvement = reduction of >= 50% and >= 20 mm in either of the subscales. Response = either high improvement or improvement.
- Amount of Rescue Medication Use During 8 Week Maintenance Period. [ Time Frame: during 8 week Maintenance Period ]Use of rescue medication is expressed in number of tablets equivalent to 500 mg Paracetamol per day.
- Change From Baseline to End of 8 Week Maintenance Period in Perception of Pain Interference With Subject's Sleep. [ Time Frame: Baseline, end of 8 week Maintenance Period ]Pain interference with sleep refers to patient's last evening prior to the visit and was assessed using a 100mm visual analog scale (VAS). The VAS ranges from 0 (did not interfere) to 100 (completely interfered).
- Change From Baseline to End of 8 Week Maintenance Period in Profile of Mood States (Total Mood Disturbance Score). [ Time Frame: Baseline, end of 8 week Maintenance Period ]Total Mood Disturbance score sums up over the domain scores regarding Tension-anxiety, Depression-ejection, Anger-hostility, Vigor-activity (was subtracted), Fatigue-inertia, Confusion-bewilderment. Domain scores were derived as sum of the respective items and range from 0 to 20. With exception of Vigor-activity high values describe bad mood.
|Study Start Date:||March 2007|
|Study Completion Date:||January 2008|
|Primary Completion Date:||November 2007 (Final data collection date for primary outcome measure)|
50 or 100mg tablet, 400mg daily, for 12 weeks
Other Name: VIMPAT
Placebo Comparator: Placebo
50 or 100mg tablet, 400mg daily, for 12 weeks, matched to Lacosamide
LCM is an investigational drug that is being studied as a treatment in male and female patients who are diagnosed with osteoarthritis of the knee and require therapeutic doses of NSAIDs, COX-2 NSAIDs and/or paracetamol. This trial will be conducted exclusively in Europe.
The study has an adaptive 3-stage group sequential design.
The trial will last a total of 17 weeks. There will be a 2 week period to wean off current medication, followed by a 4 week period where the patient will receive placebo (inactive drug) or gradually increasing doses of LCM up to the target dose of 400mg/day. The target dose or placebo will be maintained for 8 weeks followed by a 1 week reduction period then a 2 week safety follow up period.
The last subject is expected to be enrolled in December 2007.
The study was terminated based on the outcome of the planned first interim analysis, which was performed as defined in the protocol in a subset of patients. It was decided not to continue the trial. No safety concerns were identified.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00485472
|Kladno, Czech Republic|
|Prague, Czech Republic|
|Bad Hersfeld, Germany|
|Morriston, United Kingdom|
|Newcastle, United Kingdom|
|Oxford, United Kingdom|
|Stanmore, United Kingdom|
|Study Director:||UCB Clinical Trial Call Center||+1 877 822 9493 (UCB)|