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Idiopathic pulmonary fibrosis (IPF)/usual interstitial pneumonia is a deadly disease with no effective treatment. The purpose of this randomised prospective multicentric study was to characterise the clinical effects of interferon gamma (IFN-γ) 1b administered subcutaneously thrice weekly versus colchicine for 2 yrs. This study had no pre-specified end-points.

Fifty consecutive IPF patients were randomised. Patients with mild-to-moderate IPF were eligible for the study if they had histologically proven IPF, or, in the absence of surgical biopsy, fulfilled the European Respiratory Society/American Thoracic Society criteria.

In the intent-to-treat population, five out of 32 (15.6%) IFN-γ-1b patients and seven out of 18 (38.8%) colchicine patients died after a median follow-up period of 25 months Patients treated with IFN-γ 1b showed a better outcome after 2 yrs of therapy, and fewer symptoms, as assessed using the St …