Rheumatology Advance Access originally published online on May 11, 2009
Rheumatology 2009 48(7):796-799; doi:10.1093/rheumatology/kep104
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Treatment of sicca symptoms with hydroxychloroquine in patients with Sjögren's syndrome
1Clinic for Immunology and Rheumatology, Hannover Medical School (MHH), Hannover, Germany.
Correspondence to: Markus Rihl, Clinic for Immunology and Rheumatology, Hannover Medical School (MHH), Carl-Neuberg-Street 1, 30625 Hannover, Germany. E-mail: rihl.markus{at}mh-hannover.de
| Abstract |
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Objective. There is no established disease-modifying treatment of xerostomia and xerophthalmia in SS. This retrospective study was performed in order to evaluate the efficacy of HCQ for glandular function, i.e. saliva and tear production.
Methods. Fourteen patients with primary SS (pSS) were included (Group A). All patients were anti-Ro and/or -La antibody positive except one. Patients were treated with HCQ for a period of up to 6 months. Glandular function was determined by Saxon's and Schirmer's tests for the dominant eye at baseline and at the end of the treatment. We included a control group of 21 patients with objective sicca symptoms and positive
-fodrin antibodies (Group B).
Results. In patients with pSS (Group A), a significant increase in saliva production after HCQ treatment (P = 0.022) was observed. A subanalysis revealed that particularly the
-fodrin-positive patients responded to HCQ (P = 0.017
-fodrin positive vs P = 0.4
-fodrin negative). Interestingly, patients with sicca symptoms and
-fodrin antibodies (Group B) showed a significant increase in tear production (P = 0.001). In addition, there was a positive correlation between the
-fodrin IgA antibody concentration and the Schirmer's test at baseline (r = 0.66; P = 0.001) and after treatment (r = 0.6; P = 0.004) in this group.
Conclusions. HCQ treatment led to a beneficial effect on xerostomia in patients with pSS who lack severe organ manifestations. The response was greater in
-fodrin-positive patients.
KEY WORDS: Sjögren's syndrome, Sicca symptoms, Hydroxychloroquine,
-Fodrin
Submitted 6 February 2009; Accepted 30 March 2009