STUDY DESIGN: This is a phase 2, multicenter, randomized, double-blind, placebo-controlled, parallel-group, efficacy and safety study in 30 patients with erosive osteoarthritis of interphalangeal joints. The study is composed of 4 phases: a pre-randomization phase for up to 35 days followed by a 91-day randomized, double-blind two arm treatment phase, followed by a 77-day open label treatment phase for all study participants and a 28-day observational follow-up phase. Efficacy of the double blind and open label phase will be assessed at study day 84 and 168 after treatment start respectively. STUDY DURATION: The study length will be approximately 231 days for individual patients. With approximately a 12 month recruitment period the study is planned to last from January 2010 until July 2011 (19 months). STUDY OBJECTIVES: The primary objective is to evaluate the 84-day efficacy of apremilast 20 mg twice per day \[BID\], subsequent to a 7-day dose titration, compared with placebo, for the treatment of the symptoms of erosive hand osteoarthritis. Further objectives are to evaluate the effects on pain, disease activity, structural damage, quality of life, safety and tolerability.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
30
Apremilast is supplied as 10 mg capsules for oral administration. After a 7-day titration phase patients will receive 20 mg PO BID apremilast.
Placebo capsules identical to apremilast
Prof. G. Schett, University Hospital Erlangen
Erlangen, Bavaria, Germany
Prof. Ulf Müller-Ladner, Kerckhoff-Klinik
Bad Nauheim, Germany
Prof. Matthias Schneider, Universitätsklinikum Düsseldorf, Klinik für Endokrinologie, Diabetologie und Rheumatologie
Düsseldorf, Germany
Proportion of subjects in each treatment group who achieve a significant 50% improvement in AUSCAN Index at day 84 after treatment start compared with baseline
Proportion of subjects in each treatment group who achieve a significant 50% improvement in AUSCAN Index at day 84 after treatment start compared with baseline.
Time frame: Day 84 after treatment start compared with baseline
Absolute values and change from baseline of the Patient self Assessment score (VAS) from baseline, day 84 and day 168 as well as proportion of patients in each treatment group who achieve improvements
Patients self assessment of pain (VAS)
Time frame: Day 84 and at day 168 after treatment start compared with Baseline
Change of the Physicians and Patients self assessment of global status (VAS)score from baseline, day 84 and day 168.
Physicians and Patients self assessment of global status (VAS)
Time frame: Day 84 and at day 168 after treatment start compared with Baseline
Change of the HAQ score from baseline, day 84 and day 168 in each treatment group who achieve improvements
HAQ
Time frame: Day 84 and at day 168 after treatment start compared with Baseline
Change of the SACRAH score from baseline, day 84 and day 168 in each treatment group who achieve improvements
SACRAH
Time frame: Day 84 and at day 168 after treatment start compared with Baseline
Change of the duration of the joint stiffness from baseline, day 84 and day 168 in each treatment group who achieve improvements
Duration of joint stiffness
Time frame: Day 84 and at day 168 after treatment start compared with Baseline
Change of swollen and tender joints from baseline compared to day 84 and day 168 in each treatment group.
Swollen and tender joint counts
Time frame: Day 84 and at day 168 after treatment start compared with Baseline
Measuring radiology changes from baseline, day 84 and day 168 using the RAMRIS score in each treatment.
RAMRIS scoring system
Time frame: Day 84 and at day 168 after treatment start compared with Baseline
Changes of the SF36 from baseline, day 84 and day 168 in each treatment group.
SF36
Time frame: Day 84 and at day 168 after treatment start compared with Baseline
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