One hundred ninety-four patients with cryptococcal meningitis were enrolled in a multicenter, prospective, randomized clinical trial to compare the efficacy and toxicity of four as compared with six weeks of combination amphotericin B and flucytosine therapy. Among 91 patients who met preestablished criteria for randomization, cure or improvement was noted in 75 percent of those treated for four weeks and in 85 percent of those treated for six weeks. The estimated relapse rate for the four-week regimen was higher--27 as compared with 16 percent--whereas the incidence of toxic effects for the two regimens was similar--44 as compared with 43 percent. Among 23 transplant recipients, 4 of 5 treated for four weeks relapsed, leading to the decision to treat the rest of the group for six weeks. Only 3 of the 18 treated for six weeks relapsed. In a third group of 80 patients, the protocol was not followed during the initial four weeks, and these patients were not randomized. Thirty-eight died or relapsed. Multifactorial analysis of pretreatment factors for all 194 patients identified three significant predictors (P less than 0.05) of a favorable response: headache as a symptom, normal mental status, and a cerebrospinal fluid white-cell count above 20 per cubic millimeter. These and other findings in this study are consistent with the view that the four-week regimen should be reserved for patients who have meningitis without neurologic complications, underlying disease, or immunosuppressive therapy; a pretreatment cerebrospinal fluid white-cell count above 20 per cubic millimeter and a serum cryptococcal antigen titer below 1:32; and at four weeks of therapy, a negative cerebrospinal fluid India ink preparation and serum and cerebrospinal fluid cryptococcal-antigen titers below 1:8. Patients who do not meet these criteria should receive at least six weeks of therapy.

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The in vitro activity of R 51,211 (itraconazole, accepted generic name; Janssen Pharmaceutica, Beerse, Belgium), a new orally active triazole, was compared with those of two existing orally active azoles, ketoconazole and BAY n 7133, and a topical agent, Ro 14-4767/002. An agar dilution procedure (Kimmig agar) was performed with 148 isolates of pathogenic fungi. Incubation was at 30 degrees C from 48 h to 7 days. R 51,211 was dissolved in 0.2 N HCl in absolute ethanol, ketoconazole was dissolved in 0.2 N HCl alone, BAY n 7133 was dissolved in absolute ethanol, and Ro 14-4767/002 was dissolved in dimethyl sulfoxide. R 51,211 and Ro 14-4767/002 were the most active drugs against isolates of Histoplasma capsulatum, and R 51,211 showed the greatest activity in vitro against isolates of Blastomyces dermatitidis and Cryptococcus neoformans. Ro 14-4767/002 was the most active drug against 30 isolates of dermatophytes, followed by R 51,211, ketoconazole, and BAY n 7133. R 51,211 showed the best activity in vitro against 19 isolates of Aspergillus fumigatus and Aspergillus flavus, as well as 19 isolates of dematiaceous fungi. All four drugs had 90% MICs of greater than or equal to 16 micrograms/ml when tested with isolates of zygomycetous fungi.