Adverse Drug Reactions Spontaneously Reported at a Tertiary Care Hospital and Preventable Measures Implemented

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Abstract
What is known Limitations of clinical trials in determining all safety concerns related to a drug are well recognized. Monitoring spontaneous adverse drug reaction (ADR) reports remains an easy and relatively inexpensive method for overseeing that a drug remains a safe and effective option for patients. Objective To characterize and describe ADR reports at one of the largest healthcare institutions in the region and share the measures implemented by the team. Methods We conducted a retrospective analysis of all ADRs submitted by healthcare providers in a tertiary healthcare system in Saudi Arabia between January 2016 and December 2019. The main outcome measures included reporting rate, patient characteristics, suspected drugs involved, seriousness and reporting specialities. Results and discussion Throughout this study, 1156 ADR reports were submitted. The top reported ADR was immune system disorders (87.8%). The most represented class were antimicrobials (56.8%), followed by analgesics (11.4%) and diagnostic agents (5.1%). The ADRs were deemed definitely avoidable in 11.4% (132/1156) of the cases, and 24.2% (280/1156) were deemed possibly avoidable. Reporting ADRs has steadily increased over the years at our institution, but there continues to be a lack of reporting by physicians. Almost one‐third of the reported ADRs were considered to be avoidable or possibly avoidable, which is a driver to continue pharmacovigilance activates on an institutional level and provide specific and tailored preventative measures guided by the specific types of ADRs reported. What is new and conclusion This is the first study to report trends of ADRs spontaneously reported at one of the largest healthcare institutions in the Middle East. It shows similar trends to what has been reported by other institutions, with mainly immediate immunological ADRs being the top reported ADRs, which could be explained by the immediate onset which simplifies the temporal association. Every institution should support and maintain an active ADR team, with responsibilities of evaluating incidents, monitoring trends and most importantly identifying opportunities to improve medication and patient safety. We share here our workflow and hope it serves as a guide for other institutions.

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