Safety profile of biological intravenous therapy in a rheumatoid arthritis patients cohort. Clinical nursing monitoring (Sebiol study).
INTRODUCTION
The Biologics used in the management of rheumatoid arthritis (RA) in recent years, have comprehensively permitted to understand its security, as shown in registries such as BIOBADASER. The present manuscript represents an observational cohort study to describe the safety perinfusional profile of those intravenous treatments.


OBJECTIVES
To confirm the safety profile of biological therapies in routine clinical practice, after the administration of intravenous drugs and 24 hours post-administration.


MATERIAL AND METHODS
We evaluated a cross-sectional cohort of 114 patients with RA (according to the American College of Rheumatology ACR criteria), attending within one month in 2009 the nursing clinics of day care hospital of 12 Catalonian hospitals. All patients were treated with intravenous biological agents. We recorded the age, sex, current and previous drug treatments, we also collected data about previous vaccination and premedication received and any adverse event occurring at the time of drug administration or within 24 hours. If an adverse event occurred, was categorized by MedDRAv11.0 International Dictionary, and categorized in terms of intensity (mild, moderate, severe), relationship to drug administration according to Karch and Lasagna algorithm (unrelated, unlikely, possible, probable, definite) and the further measures taken.


RESULTS
111 patients met the inclusion criteria, with a mean age of 56.06 years (SD: 12.12), 90 of them women (81.1%) and mean time since diagnosis of the disease of 11.97 years (SD: 7.95). 24 patients (21.6%) had a history of allergy. 12 adverse events were observed in 7 patients, 9 of which at the time of administration and 3 in 24 hours after. There were no serious adverse events and only one of the adverse events (AEs) was rated as moderate (urticaria). The remaining AA were mild.