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Transplantation. 2008 Jan 15;85(1):36-41. doi: 10.1097/01.tp.0000295981.84633.bc.

Long-term azithromycin for bronchiolitis obliterans syndrome after lung transplantation.

Author information

1
Department of Respiratory Medicine, Hannover Medical School, Hannover, Germany. gottlieb.jens@mh-hannover.de

Abstract

BACKGROUND:

Bronchiolitis obliterans syndrome (BOS) is a major cause of morbidity and mortality after lung transplantation (LTx). Macrolides are a promising treatment option for BOS. The objective of this study was to determine long-term results of azithromycin treatment in patients with BOS. Variables to predict treatment response were evaluated.

METHODS:

An observational study in a single center was performed. Eighty-one adult LTx-recipients (single, double, combined, and re-do) with at least BOS stage 0p (mean forced expired volume in 1 second [FEV1] 55+/-19%) were included. For treatment, 250 mg of oral azithromycin was administered three times per week.

RESULTS:

Twenty-four of 81 (30%) patients showed improvement in FEV1 after 6 months, 22/24 already after 3 months of treatment. By univariate analysis, responders at 6 months had higher pretreatment bronchoalveolar lavage (BAL) neutrophils (51+/-29 vs. 21+/-24%). A cutoff value of <20% in pretreatment BAL had a negative predictive value of 0.91 for treatment response. Thirty-three patients (40%) showed disease progression during follow-up (491+/-165 days). Cox regression analysis identified a rapid pretreatment decline in FEV1 and comedication of an mammalian target of rapamycin inhibitor as positive predictors and proton pump inhibitor comedication and a treatment response at 3 months as negative predictors for disease progression (FEV1<90% baseline).

CONCLUSIONS:

Azithromycin can improve airflow limitation in a significant proportion of patients with even long-standing BOS. The majority of responders were identified after 3 months of treatment. Results indicate the predictive value of BAL neutrophilia for treatment response and pretreatment course of FEV1 as a variable for disease progression. Beneficial effects on gastroesophageal reflux disease may be a mechanism of action.

[Indexed for MEDLINE]

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