AMBIZYGO: Efficacy of High Dose [10 mg/kg/j] Liposomal Amphotericin B (Ambisome)Efficacy in Initial Zygomycosis Treatment:Phase II Trial

Primary objective: Efficacy of 4 weeks of liposomal amphotericin B (AmBisome®) at high dose [10 mg/kg/j] or at maximal tolerable dose in initial zygomycosis treatment. Evaluation after 4 weeks of treatment or at end of treatment if it occurs before. Efficacy will be defined as objective responses; complete and partial response.

Secondary objectives: Efficacy, tolerance and survival after 15 days of treatment, cumulative dose of AmBisome® necessary to obtain objective response, efficacy in operated and non operated patients, tolerance after 4 and 12 weeks treatment, survival, and relapse rate at 6 months of 4 weeks of liposomal amphotericin B (AmBisome®) at high dose [10 mg/kg/j] or at maximal tolerable dose.

Scheme : prospective, multicentric, non comparative therapeutic pilot study.

Inclusion criteria: Presence on a tissue biopsy of large non septated hyphae compatible with zygomycete or presence of a zygomycete in culture associated with clinical or radiological abnormalities compatible with fungal invasive infection.

Exclusion criteria: Life expectancy below 72 hours, pregnancy, breast feeding, polyene hypersensitivity, absence of histologic or mycologic zygomycosis documentation, absence of informed consent, previous treatment with polyene or other antifungal active on zygomycete (posaconazole, itraconazole) over 5 days during the month previous inclusion.