Copyright ©ERS Journals Ltd 2005 Evolution of previous sarcoidosis under type 1 interferons given for severe associated disease1 Pneumology Dept, and 4 Internal Medicine Dept, Avicenne University Hospital, Assistance Publique/Hôpitaux de Paris, Bobigny, 2 Hepatology Dept, Jean Verdier University Hospital, Assistance Publique/Hôpitaux de Paris, Bondy, and 3 Multiple Sclerosis Clinic, Dept of Neurology, Tenon University Hospital, Assistance Publique/Hôpitaux de Paris, Paris, France CORRESPONDENCE: D. Valeyre, Service de Pneumologie, Avicenne Univeristy Hospital, 125 route de Stalingrad, 93009, Bobigny, France. Fax: 33 148955126. E-mail: dominique.valeyre@avc.ap-hop-paris.fr
Keywords: Granulomatosis, hepatitis B virus, hepatitis C virus, interferon-
Received: December 22, 2003 ABSTRACT
Sarcoidosis is a granulomatous disorder with a well-known T helper (Th) type 1 cell commitment and a key pathogenic role of interferon (IFN)-
The aim of this study was to determine whether type 1 IFNs can safely be used in patients with sarcoidosis for severe associated disease.
The present study examined a series of four patients with sarcoidosis, treated by IFN-
IFN was initiated soon after apparent recovery (three cases) or during a worsening phase of sarcoidosis (one case). Hydroxychloroquine was added in the case with active disease. Patients received interferon for 624 months and had close monitoring during and after IFN therapy. Interestingly, no recurrence or exacerbation of sarcoidosis had occurred at 4 yrs of follow up. Two patients were cured from viral hepatitis, whilst treatment for another failed. No neurological progression was observed in the remaining patient.
This series suggests that, despite the T helper type 1 phenotype of sarcoid granulomatous reaction, type 1 interferons do not exacerbate sarcoidosis in remission and this makes their use possible if indicated. However, their effect in persistent forms of the disease needs further evaluation.
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