Comparison of Fluconazole and Amphotericin B in the Treatment of Brain Infections in Patients With AIDS

Overview

To compare the safety and effectiveness of a new drug, fluconazole, with that of the usual therapy, amphotericin B, in the prevention of a relapse of cryptococcal meningitis (CM) in patients with AIDS who have been successfully treated for acute CM in the last 6 months. Cryptococcal meningitis is a life-threatening infectious complication of AIDS. Because relapse after treatment occurs in over 50 percent of cases, chronic maintenance therapy with intravenous (IV) amphotericin B is usually given. However, amphotericin B is not always effective, has toxic effects, and must be given by the intravenous route. Fluconazole is an antifungal agent that can be given orally and has been shown to be effective against cryptococcal infections in animals and against acute CM in a few AIDS patients. Also, the side effects experienced by over 2000 patients or volunteers given fluconazole have seldom been severe enough to require withdrawal of the drug.

Cryptococcal meningitis is a life-threatening infectious complication of AIDS. Because relapse after treatment occurs in over 50 percent of cases, chronic maintenance therapy with intravenous (IV) amphotericin B is usually given. However, amphotericin B is not always effective, has toxic effects, and must be given by the intravenous route. Fluconazole is an antifungal agent that can be given orally and has been shown to be effective against cryptococcal infections in animals and against acute CM in a few AIDS patients. Also, the side effects experienced by over 2000 patients or volunteers given fluconazole have seldom been severe enough to require withdrawal of the drug. Patients accepted in the trial are randomly assigned to fluconazole or amphotericin B. Fluconazole is given orally once a day and amphotericin B is given intravenously once a week. Dosages depend on body weight. Medications may be given with amphotericin B to prevent or reduce discomfort from associated side effects. Patients are treated for 12 months and may continue to receive antiviral therapy, radiation therapy for mucocutaneous Kaposi's sarcoma, or preventive therapy for Pneumocystis carinii pneumonia (PCP) during the study.