RT Journal Article SR Electronic T1 The British Society for Rheumatology Biologics Register JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP iv42 OP iv43 DO 10.1136/ard.2005.042499 VO 64 IS suppl 4 A1 K Watson A1 D Symmons A1 I Griffiths A1 A Silman YR 2005 UL http://ard.bmj.com/content/64/suppl_4/iv42.abstract AB The British Society for Rheumatology (BSR) established a nationwide register for patients with rheumatological disorders treated with biologic agents. The register is designed as a national prospective study whose primary purpose is to assess long term toxicity from the use of these agents in routine practice. In addition, the data will be capable of addressing the benefits from their use in relation to their toxicity. One specific feature of the BSR register is the recruitment and collection of data from a parallel comparison group, comprising patients with active rheumatoid arthritis treated with conventional disease modifying agents. Both class specific and drug specific analyses of the group treated with biologicals are planned.