Primary prophylaxis of invasive fungal infections with posaconazole or itraconazole in patients with acute myeloid leukaemia or high-risk myelodysplastic syndromes undergoing intensive cytotoxic chemotherapy: A real-world comparison

Mycoses. 2018 Mar;61(3):206-212. doi: 10.1111/myc.12728. Epub 2018 Jan 3.

Abstract

This is an observational-retrospective study comparing the real-world outcomes associated with posaconazole vs itraconazole as prophylaxis treatments. Two hundred and ninety-three patient admissions attributable to 174 patients were included in the study. Patients were treated with itraconazole (n = 114 admissions; 39%) or posaconazole (n = 179; 61%). Antifungal prophylaxis failure (APF) due to treatment-related adverse events (in 34 out of 293 patient admissions; 11.6%) was more frequent in the posaconazole group (6.1% vs 15.1%; P = .024). There were 9 patient admissions for episodes of APF due to probable/proven breakthrough fungal infection (primary endpoint): 6 and 3 in the itraconazole and posaconazole group respectively (5.3% vs 1.7%; P = .095). All of them were associated with invasive pulmonary aspergillosis (IPA). APF was more frequent with itraconazole (65% vs 30%; P < .001), along with failure due to possible/probable/proven IPA (25% vs 10%; P = .002) and overall failure by any of the 3 different causes of prophylaxis failure (70% vs 38%; P < .001). In agreement with clinical trial data, this real-world evidence supports the use of posaconazole over itraconazole in AML or MDS patients undergoing intensive chemotherapy.

Keywords: antifungal agents; invasive fungal infection; itraconazole; neutropenia; posaconazole; real-world comparison.

Publication types

  • Comparative Study
  • Observational Study

MeSH terms

  • Adult
  • Aged
  • Antifungal Agents / administration & dosage*
  • Antifungal Agents / adverse effects
  • Drug-Related Side Effects and Adverse Reactions
  • Female
  • Humans
  • Invasive Fungal Infections / microbiology
  • Invasive Fungal Infections / prevention & control*
  • Invasive Pulmonary Aspergillosis / complications
  • Invasive Pulmonary Aspergillosis / microbiology
  • Itraconazole / administration & dosage*
  • Itraconazole / adverse effects
  • Leukemia, Myeloid, Acute / complications*
  • Leukemia, Myeloid, Acute / drug therapy
  • Leukemia, Myeloid, Acute / microbiology
  • Male
  • Middle Aged
  • Myelodysplastic Syndromes / complications*
  • Myelodysplastic Syndromes / drug therapy
  • Myelodysplastic Syndromes / microbiology
  • Pre-Exposure Prophylaxis
  • Retrospective Studies
  • Treatment Failure
  • Triazoles / administration & dosage*
  • Triazoles / adverse effects

Substances

  • Antifungal Agents
  • Triazoles
  • Itraconazole
  • posaconazole