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Voriconazole Trough Plasma Levels : Genetic Polymorphism, Efficacy, Safety in Patients With Hematologic Malignancy

2014-07-24 14:00:55 | BioPortfolio

Summary

Multiple factors are associated with a large variability in voriconazole exposure following standard dose administration, such as non-linear saturable pharmacokinetics, drug-drug interactions, liver disease, patient age, and genetic polymorphism of the metabolic enzymes.

Voriconazole is extensively metabolized by the human hepatic enzymes, primarily mediated by CYP2C19. The polymorphisms account for a relatively large portion of inter-individual variance observed in voriconazole plasma concentrations.

However, there are limited data on the relationships between voriconazole blood levels and clinical outcomes or safety in Asian populations.

The purpose of this study is to investigate the relationships of voriconazole blood levels with genetic polymorphism, safety, and clinical outcomes in immunocompromised patients with invasive pulmonary aspergillosis.

Description

The investigators are trying to establish that routine clinical practice for voriconazole therapeutic drug monitoring can improve the efficacy and safety outcomes.

In Korean patients with hematologic malignancy, the investigators also want to propose the optimal dosing guideline of voriconazole with different genetic polymorphisms.

Study Design

Observational Model: Case-Only, Time Perspective: Prospective

Conditions

Invasive Fungal Infection

Intervention

voriconazole

Location

Asan Medical Center, University of Ulsan College of Medicine
Seoul
Korea, Republic of
138-736

Status

Not yet recruiting

Source

Asan Medical Center

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-24T14:00:55-0400

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An important nosocomial fungal infection with species of the genus CANDIDA, most frequently CANDIDA ALBICANS. Invasive candidiasis occurs when candidiasis goes beyond a superficial infection and manifests as CANDIDEMIA, deep tissue infection, or disseminated disease with deep organ involvement.

Infection with a fungus of the genus COCCIDIOIDES, endemic to the SOUTHWESTERN UNITED STATES. It is sometimes called valley fever but should not be confused with RIFT VALLEY FEVER. Infection is caused by inhalation of airborne, fungal particles known as arthroconidia, a form of FUNGAL SPORES. A primary form is an acute, benign, self-limited respiratory infection. A secondary form is a virulent, severe, chronic, progressive granulomatous disease with systemic involvement. It can be detected by use of COCCIDIOIDIN.

Mycoses which manifest as infections of deep tissue or blood.

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Lung infections with the invasive forms of ASPERGILLUS, usually after surgery, transplantation, prolonged NEUTROPENIA or treatment with high-doses of CORTICOSTEROIDS. Invasive pulmonary aspergillosis can progress to CHRONIC NECROTIZING PULMONARY ASPERGILLOSIS or hematogenous spread to other organs.

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