Article: A pharmacokinetic analysis of posaconazole oral suspension in the serum and alveolar compartment of lung transplant recipients
International journal of antimicrobial agents. 2016 Jan., v. 47, no. 1
2016
Abstract: Invasive fungal infections cause significant morbidity and mortality after lung transplantation. Fungal prophylaxis following lung transplantation is not standardised, with transplant centres utilising a variety of regimens. Posaconazole is a broad- ... ...
| Abstract | Invasive fungal infections cause significant morbidity and mortality after lung transplantation. Fungal prophylaxis following lung transplantation is not standardised, with transplant centres utilising a variety of regimens. Posaconazole is a broad-spectrum antifungal triazole that requires further investigation within the setting of lung transplantation. This prospective, single-centre, observational study explored the pharmacokinetics of posaconazole oral suspension (POS) in the early perioperative period following lung transplantation in 26 patients. Organ recipients were scheduled to receive 400mg POS twice daily for 6 weeks as primary antifungal prophylaxis. Therapeutic drug monitoring (TDM) of serum posaconazole levels was performed in accordance with local clinical protocols. Bronchoalveolar lavage fluid (BALF) was sampled during routine bronchoscopies. Posaconazole levels were measured both in serum and BALF using mass spectrometry. Posaconazole levels were highly variable within lung transplant recipients during the perioperative period and did not achieve ‘steady-state’. Serum posaconazole concentrations positively correlated with levels within the BALF (r=0.5527; P=0.0105). Of the 26 patients, 10 failed to complete the study for multiple reasons and so the trial was terminated early. Unlike study findings in stable recipients, serum posaconazole levels rarely achieved steady-state in the perioperative period; however, they do reflect the concentrations within the airways of newly transplanted lungs. The role of POS as primary prophylaxis in the perioperative period is uncertain, but if used TDM may be helpful for determining attainment of therapeutic levels. |
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| Keywords | anti-infective agents ; blood serum ; bronchoscopy ; disease control ; drugs ; fungi ; lungs ; mass spectrometry ; monitoring ; morbidity ; mortality ; observational studies ; patients ; pharmacokinetics ; protocols ; triazoles |
| Language | English |
| Dates of publication | 2016-01 |
| Size | p. 69-76. |
| Publishing place | Elsevier B.V. |
| Document type | Article |
| ZDB-ID | 1093977-5 |
| ISSN | 1872-7913 ; 0924-8579 |
| ISSN (online) | 1872-7913 |
| ISSN | 0924-8579 |
| DOI | 10.1016/j.ijantimicag.2015.09.015 |
| Database | NAL-Catalogue (AGRICOLA) |
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