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Prophylactic application of nebulized liposomal amphotericin B in hematologic patients with neutropenia

Annette Hullard-Pulstinger1, Ernst Holler, Joachim Hahn

  • 1Abteilung für Hämatologie und Internistische Onkologie, Klinikum der Universität Regensburg, Germany.

Onkologie
|May 18, 2011
PubMed
Abstract

Insights

Aerosolized liposomal amphotericin B (lipAmB) is a feasible and safe antifungal prophylaxis for high-risk patients. A subgroup of acute myeloid leukemia (AML) patients showed improved survival with lipAmB.

Area of Science:

  • Mycology
  • Hematology
  • Pharmacology

Background:

  • Pulmonary invasive fungal infections (IFI) pose significant risks for patients with hematologic malignancies, leading to high morbidity and mortality.
  • Effective prophylactic strategies are crucial for managing IFI in immunocompromised patient populations.

Purpose of the Study:

  • To evaluate the safety and feasibility of aerosolized liposomal amphotericin B (lipAmB) as an antifungal prophylaxis.
  • To assess the efficacy of lipAmB in preventing IFI in patients undergoing intensive chemotherapy or stem cell transplantation.

Main Methods:

  • A prospective phase II clinical trial involving patients with expected neutropenia exceeding 10 days.
  • Comparison of 98 treatment episodes with lipAmB inhalation against 105 historical control patients.
  • Subgroup analysis focused on 48 patients diagnosed with acute myeloid leukemia (AML).

Main Results:

  • Aerosolized lipAmB was found to be feasible and safe, with no severe side effects reported.
  • While overall IFI rates did not significantly differ, a subgroup of AML patients receiving lipAmB prophylaxis demonstrated a significant improvement in 1-year survival rates (80% vs. 54%, p < 0.01).
  • Patient-reported outcomes indicated that inhalations were generally considered unpleasant by a portion of participants, primarily due to taste or cough.

Conclusions:

  • Inhalations of liposomal amphotericin B are a feasible and safe prophylactic option.
  • The promising survival data in the AML subgroup warrants further investigation into the effectiveness of aerosolized lipAmB for antifungal prophylaxis in high-risk hematologic malignancy patients.

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