Comparative double blind study of the efficacy and safety of tenoxicam vs. piroxicam in osteoarthritis of knee and hip joints
Adelowo, O.O.; Chukwuani, C.M.; Grange, J.J.; Ojeasebhulo, E.E.; Onabowale, B.O.
West African Journal of Medicine 17(3): 194-198
1998
ISSN/ISBN: 0189-160X PMID: 9814091 Document Number: 6390
The efficacy and safety of tenoxicam was compared to that of piroxicam in 48 Nigerian patients with Osteoarthritis of the knee or hips. Of these 31 females and 11 males, with a mean age of 52.5 +/- 11.0 years, were evaluated for comparable efficacy and tolerability. On fulfilling the selection criteria each patient was treated with either tenoxicam 20 mg or piroxicam 20 mg daily for six weeks. Efficacy was evaluated in terms of presence of pain (at rest, with mobility and after one day of normal activity), functional status and physicians global assessment of therapeutic efficacy. Tolerability was evaluated by incidence of adverse events whilst safety was evaluated by measurement of haematological and biochemical profile pre and post therapy. Thirty seven patients had been on previous medication before being switched over to trial drug. There was a dose change in three patients in the piroxicam group due to inefficacy. Also there was loss of efficacy during maintenance in one patient in the piroxicam group. Clinical efficacy was judged excellent or good in 82.3% of patients with tenoxicam and 76.0% with piroxicam. Tolerability was excellent or good in 88.2% of patients with tenoxicam and 60.0% with piroxicam. The incidence of adverse event was 15.8% with tenoxicam and 21.7% with piroxicam. Overall, when judged on various evaluation parameters, tenoxicam 20 mg/day appears to be more effective and better tolerated than piroxicam 20 mg/day, though these differences were not statistically significant.
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