COX-2-specific inhibitors and the kidney: effect on hypertension and oedema
Abstract
Recent studies have investigated the renal and cardiovascular safety of celecoxib and rofecoxib. Both agents have been studied in long-term safety trials: the Celecoxib Long-Term Safety Study (CLASS) and Vioxx Gastrointestinal Outcomes Research Study (VIGOR). Renal safety was investigated in CLASS and the results indicated that celecoxib (even at the supratherapeutic 800 mg daily doses used in CLASS) is associated with lower rates of renal side effects than conventional non-steroidal anti-inflammatory drugs (NSAIDs). The renal safety of celecoxib was also assessed in healthy elderly subjects. In these subjects, celecoxib administration was associated with minimal effects on glomerular filtration rate compared with naproxen, while urinary sodium and prostaglandin E2 excretion were similar. Celecoxib and rofecoxib were compared with each other in two studies of elderly hypertensive patients with osteoarthritis (OA). These patients were treated with usual therapeutic doses of celecoxib (200 mg daily) or rofecoxib (25 mg daily). In the first study, celecoxib treatment had a significantly lower incidence of peripheral oedema than rofecoxib (4.9% versus 9.5%, P = 0.014). The second study confirmed the results of the initial study: the incidence of oedema was again lower with celecoxib than with rofecoxib (4.7% versus 7.7%, P < 0.05). Rofecoxib use was also associated with significantly greater mean and clinically relevant increases in systolic blood pressure than celecoxib. The…
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