Discrepancy between patient- and healthcare provider-reported adverse drug reactions in inflammatory bowel disease patients on biological therapy
SourceUnited European Gastroenterology Journal, 9, 8, (2021), pp. 919-928
Article / Letter to editor
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United European Gastroenterology Journal
SubjectRadboudumc 5: Inflammatory diseases RIMLS: Radboud Institute for Molecular Life Sciences
BACKGROUND: Only limited data is available on the extent and burden of adverse drug reactions (ADRs) to biological therapy in inflammatory bowel disease (IBD) patients in daily practice, especially from a patient's perspective. OBJECTIVE: The aim of this study was to systematically assess patient-reported ADRs during biological therapy in IBD patients and compare these with healthcare provider (HCP)-reported ADRs. METHODS: This multicentre, prospective, event monitoring study enrolled IBD patients on biological therapy. Patients completed bimonthly comprehensive web-based questionnaires regarding description of biological induced ADRs, follow-up of previous ADRs and experienced burden of the ADR using a five-point Likert scale. The relationship between patient-reported ADRs and biological therapy was assessed. HCP-reported ADRs were extracted from the electronic healthcare records. RESULTS: In total, 182 patients (female 51%, mean age 42.2 [standard deviation 14.2] years, Crohn's disease 77%) were included and completed 728 questionnaires. At baseline, 60% of patients used infliximab, 30% adalimumab, 9% vedolizumab and 1% ustekinumab. Fifty percent of participants reported at least one ADR with a total of 239 unique ADRs. Fatigue (n = 26) and headache (n = 20) resulted in the highest burden and a correlation in time with the administration of the biological was described in 56% and 85% respectively. Out of 239 ADRs, 115 were considered biological-related. HCPs reported 119 ADRs. Agreement between patient-reported ADRs and HCP-reported ADRs was only 13%. CONCLUSION: IBD patients often report ADRs during biological therapy. We observed an important significant difference between the type and frequency of patient-reported ADRs versus HCP-reported ADRs, leading to an underestimation of more subjective ADRs and patients' ADR-related burden.
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