PT - JOURNAL ARTICLE AU - Lipani, J A AU - Strand, V AU - Johnson, K AU - Woodworth, T AU - Furst, D AU - Singh, G AU - Day, R AU - Brooks, P AU - OMERACT Drug Safety Working Party TI - A proposal for developing a large patient population cohort for longterm safety monitoring in rheumatoid arthritis. OMERACT Drug Safety Working Party. DP - 2001 May 01 TA - The Journal of Rheumatology PG - 1170--1173 VI - 28 IP - 5 4099 - http://www.jrheum.org/content/28/5/1170.short 4100 - http://www.jrheum.org/content/28/5/1170.full SO - J Rheumatol2001 May 01; 28 AB - This paper proposes the creation of an objectively acquired reference database to more accurately characterize the incidence and longterm risk of relatively infrequent, but serious, adverse events. Such a database would be maintained longitudinally to provide for ongoing comparison with new rheumatologic drug safety databases collecting the occurrences and treatments of rare events. We propose the establishment of product-specific registries to prospectively follow a cohort of patients with rheumatoid arthritis (RA) who receive newly approved therapies. In addition, a database is required of a much larger cohort of RA patients treated with multiple second line agents of sufficient size to enable case-controlled determinations of the relative incidence of rare but serious events in the treated (registry) versus the larger disease population. The number of patients necessary for agent-specific registries and a larger patient population adequate to supply a matched case-control cohort will depend upon estimates of the detectability of an increased incidence over background. We suggest a system to carry out this proposal that will involve an umbrella organization, responsible for establishment of this large patient cohort, envisioned to be drawn from around the world.