Phase I study of amphotericin B colloidal dispersion for the treatment of invasive fungal infections after marrow transplant.

The Journal of infectious diseases, 1996; 173 (5) doi:

Authors: Bowden R A, Cays M, Gooley T, Mamelok R D, van Burik J A

Affiliation: Fred Hutchinson Cancer Research Center, United States

Sample size: 52

Abstract: Amphotericin B colloidal dispersion (ABCD; Amphocil) was evaluated in a phase I dose-escalation study in 75 marrow transplant patients with invasive fungal infections (primarily Aspergillus or Candida species) to determine the toxicity profile, maximum tolerated dose, and clinical response. Escalating doses of 0.5-8.0 mg/kg in 0.5-mg/kg/patient increments were given up to 6 weeks. No infusion-related toxicities were observed in 32% of the patients; 52% had grade 2 and 5% had grade 3 toxicity. No appreciable renal toxicity was observed at any dose level. The estimated maximum tolerated dose was 7.5 mg/kg, defined by rigors and chills and hypotension in 3 of 5 patients at 8.0 mg/kg. The complete or partial response rate across dose levels and infection types was 52%. For specific types of infections, 53% of patients with fungemia had complete responses, and 52% of patients with pneumonia had complete or partial responses. ABCD was safe at doses to 7.5 mg/kg and had tolerable-infusion-related toxicity and demonstrable antifungal activity.

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