Trimethoprim-sulfamethoxazole compared with ciprofloxacin for the prevention of urinary tract infection in renal transplant recipients. A double-blind, randomized controlled trial
Abstract
BACKGROUND: Prophylaxis with low-dose trimethoprim-sulfamethoxazole has been shown to be cost-effective in the prevention of urinary tract infections, pyelonephritis, urosepsis, and pneumocystis pneumonia in renal transplant recipients. Ciprofloxacin, effective against almost all urinary tract pathogens in this patient population, represents a promising alternative prophylactic agent for patients unable to tolerate trimethoprim-sulfamethoxazole due to toxicity.
METHODS: We conducted a randomized, double-blind trial to compare low-dose trimethoprim-sulfamethoxazole with ciprofloxacin for the prevention of urinary tract infections in renal transplant recipients. Patients received either ciprofloxacin (250 mg) or trimethoprim-sulfamethoxazole (80 mg trimethoprim, 400 mg sulfamethoxazole) daily for 6 months following transplantation. Treatment was considered successful if patients completed the 6-month course and 3-month follow-up period without evidence of urinary tract infection or drug-related toxicities.
RESULTS: Of 103 eligible patients, 51 received ciprofloxacin and 52 received trimethoprim-sulfamethoxazole. At 6 months, treatment was successful in 75% (38 of 51) receiving ciprofloxacin and 71% (37 of 52) treated with trimethoprim-sulfamethoxazole (P = 0.87, relative risk 1.04, 95% confidence limits 0.83 to 1.33). Thirteen patients (25%) receiving trimethoprim-sulfamethoxazole withdrew from the study-4 for resistant urinary tract infection and 9 for drug-related toxicity,…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 103 participants or records.
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