Document 0751 DOCN M9470751 TI Oral atovaquone compared with intravenous pentamidine for Pneumocystis carinii pneumonia in patients with AIDS. Atovaquone Study Group. DT 9409 AU Dohn MN; Weinberg WG; Torres RA; Follansbee SE; Caldwell PT; Scott JD; Gathe JC Jr; Haghighat DP; Sampson JH; Spotkov J; et al; Pulmonary/Critical Care Division, University of Cincinnati, OH; 45267-0564. SO Ann Intern Med. 1994 Aug 1;121(3):174-80. Unique Identifier : AIDSLINE MED/94288398 AB OBJECTIVE: To test the hypothesis that the therapeutic success rate of oral atovaquone is not worse than that of intravenous pentamidine in the primary treatment of mild and moderate Pneumocystis carinii pneumonia in patients with the acquired immunodeficiency syndrome and to detect differences in the toxicity rates of the two treatments. DESIGN: Patients were randomly assigned to receive 21 days of open-label therapy with either atovaquone, 750 mg orally with meals three times daily, or intravenous pentamidine, 3 to 4 mg per kg body weight once daily. SETTING: Multicenter study including university and community treatment facilities. PATIENTS: Patients with human immunodeficiency virus infection and clinical presentations consistent with mild or moderate P. carinii pneumonia were eligible. For efficacy and safety analyses, patients with histologically confirmed P. carinii pneumonia were emphasized. MEASUREMENTS: Patients were monitored by clinical and laboratory evaluations for therapeutic efficacy and adverse events during the acute treatment phase and for 8 weeks after therapy was discontinued. RESULTS: As initial therapy for a histologically confirmed episode of P. carinii pneumonia, 56 patients received atovaquone and 53 received pentamidine. More patients were successfully treated with atovaquone (57%) than with pentamidine (40%), a difference of 17% (95% CI, -3% to 38%; P = 0.085), but more patients failed to respond to atovaquone (29%) than to pentamidine (17%), a difference of 12% (CI, -6% to 29%; P = 0.18). Discontinuation of original therapy because of treatment-limiting adverse events was more frequent in the pentamidine group (36%) than in the atovaquone group (4%) (difference, -32%; CI, -48% to -17%; P < 0.001). Nine patients in each treatment group died during the study. CONCLUSIONS: Oral atovaquone and intravenous pentamidine have similar rates for successful treatment of mild and moderate P. carinii pneumonia, but atovaquone has significantly fewer treatment-limiting adverse events. DE Adult Antifungal Agents/ADMINISTRATION & DOSAGE/ADVERSE EFFECTS/ *THERAPEUTIC USE AIDS-Related Opportunistic Infections/*DRUG THERAPY Female Human Male Middle Age Naphthoquinones/ADMINISTRATION & DOSAGE/ADVERSE EFFECTS/ *THERAPEUTIC USE Pentamidine/THERAPEUTIC USE Pneumonia, Pneumocystis carinii/*DRUG THERAPY Support, Non-U.S. Gov't Survival Analysis Treatment Outcome CLINICAL TRIAL JOURNAL ARTICLE MULTICENTER STUDY RANDOMIZED CONTROLLED TRIAL SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).