Choline magnesium trisalicylate in patients with aspirin-induced asthma

Treatment of inflammatory diseases of asthmatics can be a serious problem since some patients show intolerance to aspirin and other non-steroidal, anti-inflammatory drugs that are cyclooxygenase inhibitors. Salicylates were believed to be well tolerated, but recent reports have demonstrated that diflunisal and salicylsalicylic acid can precipitate asthma attacks in aspirin-intolerant patients. This study was designed to determine the tolerance of choline magnesium trisalicylate (CMT), a nonacetylated salicylate with potent analgesic and anti-inflammatory activity, in 23 asthmatics with aspirin hypersensitivity confirmed by oral challenge. The study consisted of three phases: 1) patients received increasing doses (50-1,500 mg) of CMT under a single-blind protocol; 2) patients received either a placebo or CMT challenge in a double-blind, randomized, cross-over design; 3) patients received CMT at daily 3,000 mg doses for 1 week. Throughout the study, pulmonary function tests, peak nasal inspiratory flow, and serum salicylate and thromboxane B2 (TXB2) levels were monitored. Results showed no airway obstruction, nasal congestion or rhinorrhea after CMT. There was no significant decrease in serum TXB2 levels, indicating the absence of cyclooxygenase inhibition with CMT. We conclude that choline magnesium trisalicylate is a safe drug for treatment of different anti-inflammatory disorders in asthmatics with aspirin hypersensitivity.

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