Conditions: Fungal Infection
Keywords: Voriconazole Therapeutic drug monitoring Hematopoietic stem cell transplant Hematologic malignancy Invasive mould infection
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 29
Healthy volunteers: no

Brief summary:
This is a prospective, multicenter, randomized trial to study therapeutic drug monitoring (TDM) of voriconazole among patients with an invasive mould infection (IMI). The primary objective of this study will be to assess the effect of prospective voriconazole TDM on the composite of adverse events (AE) and clinical response.

Detailed description:
This is a prospective study of patients who receive voriconazole as treatment for an IMI (proven, probable, and possible by the EORTC/MSG definitions), other than zygomycosis. Patients will be randomized to receive either standard dosing or dosing based on TDM, stratified by whether initial voriconazole therapy is PO or IV. Assessment of outcomes will be made 42 days after start of voriconazole. An additional follow up for safety reporting will be performed 4weeks after completion of voriconazole

The patients will be randomized to:

* Prospective TDM: voriconazole dose will be adjusted based on per protocol obtained TDM levels, and
* Standard dosing: standard doses of voriconazole will be used.

In the prospective TDM arm, voriconazole TDM will be performed in real time at each site and results will be reported to treating physicians for dose adjustment. All efforts will be taken to obtain results within 24 hours of blood sample collection. In the standard dosing arm, blood samples will be collected, stored, and batched for voriconazole levels to be tested retrospectively. Voriconazole plasma levels will be measured by validated high performance liquid chromatography (HPLC) assays as detailed. Voriconazole trough levels will be performed on Day Baseline/Screening, 5, 14, 28, and 42.

Voriconazole peak level will be measured on Day 5. Trough voriconazole levels will be obtained in case of an event, defined as suspected drug-associated toxicity and/or clinical failure.

Assessment of AEs for all patients will be monitored during the study and response to treatment will be assessed. The composite of overall AE/clinical failure will be assessed on day 42.

Arms:
arm 1: Voriconazole dose will be adjusted based on per protocol obtained TDM levels arm 2: Standard doses of voriconazole will be used

Interventions: intervention 1: Prospective TDM Arm
Intervention descriptions: intervention 1: Voriconazole dose will be adjusted based on per protocol obtained TDM levels

Protocol document: