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Rheumatology (Oxford). 2009 Aug;48(8):968-71. doi: 10.1093/rheumatology/kep157. Epub 2009 Jun 16.

Rituximab treatment of the anti-synthetase syndrome: a retrospective case series.

Author information

1
Department of Rheumatology, Rikshospitalet University Hospital, Oslo, Norway.

Abstract

OBJECTIVE:

Interstitial lung disease (ILD) is the major determinant of morbidity and mortality in the anti-synthetase syndrome (ASS). Here we have retrospectively assessed 11 ASS patients with ILD treated with the anti-CD20 mAB rituximab at our tertiary referral hospital.

METHODS:

Data on clinical and laboratory parameters, lung imaging by high-resolution CT thorax and pulmonary function tests were collected from patient examinations done up to 6 months before rituximab was initiated, and at 3 and 6 months post-treatment.

RESULTS:

All the 11 ASS patients had severe and progressive ILD and most of them had previously failed on cyclophosphamide and/or other immuno-modulating agents. Rituximab appeared to stabilize and/or improve the ILD in 7 of 11 ASS patients during the first 6 months after treatment. The rituximab treatment appeared to decrease the serum level of anti-Jo-1 antibodies, but the decrease was most often modest. One patient developed a fatal infection 3 months after the last infusion with rituximab. In the other ASS patients, the treatment was well tolerated.

CONCLUSIONS:

This retrospective case series indicates a short-term beneficial effect of rituximab in ASS. Prospective, controlled studies are needed to validate this finding and further assess safety issues.

Comment in

PMID:
19531628
DOI:
10.1093/rheumatology/kep157
[Indexed for MEDLINE]

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