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dc.contributor.authorSyed, Nauroz
dc.contributor.authorTolaymat, Mazen
dc.contributor.authorBrown, Sara A
dc.contributor.authorSivasailam, Barathi
dc.contributor.authorCross, Raymond K
dc.date.accessioned2021-04-15T15:07:59Z
dc.date.available2021-04-15T15:07:59Z
dc.date.issued2020-06-05
dc.identifier.urihttp://hdl.handle.net/10713/15419
dc.description.abstractBackground: Serum drug-level assays for infliximab (IFX) and adalimumab (ADA) are widely available and are most often obtained reactively, to determine the next steps in patients with loss of response. Studies done thus far on the use of these assays proactively, or during symptom remission, have had mixed results. Here we investigate persistence on therapy and healthcare utilization in patients on 3 drug-level monitoring strategies. Methods: We conducted a retrospective chart review of 235 patients treated for both Crohn disease and ulcerative colitis on either IFX or ADA. Monitoring strategy was defined as proactive if patients underwent testing at predefined time points regardless of symptoms or signs of disease, reactive if done during relapse, or control if no drug levels were obtained. Groups were compared on persistence on original therapeutic at 1 and 2 years as well as on various measures of healthcare utilization during the 2-year follow-up period. Results: Proactive drug monitoring was associated with a higher likelihood of persistence on therapy at 1 year when compared with the control (odds ratio [OR] = 4.76, 95% confidence interval [CI] = 1.65, 13.67) and reactive groups (OR = 6.10, CI = 2.19, 17.02). Similarly, at 2 years, proactive monitoring was superior to the control (OR = 5.41, CI = 2.26, 12.94) and reactive groups (OR = 4.51, CI = 1.88, 10.80). Proactive monitoring was also associated with lower healthcare utilization across almost all measures related to inflammatory bowel disease. Conclusions: Proactive drug monitoring increases persistence on IFX and ADA in patients with ulcerative colitis or Crohn disease and decreases overall healthcare utilization in these patients. Lay Summary Proactive drug monitoring of infliximab and adalimumab in Crohn disease and ulcerative colitis was associated with a higher likelihood of staying on the original therapeutic at 1 and 2 years, as well as lower healthcare utilization. © 2020 Crohn’s & Colitis Foundation.en_US
dc.description.urihttps://doi.org/10.1093/crocol/otaa050en_US
dc.language.isoenen_US
dc.publisherOxford University Pressen_US
dc.relation.ispartofCrohn's & colitis 360en_US
dc.rights© 2020 Crohn’s & Colitis Foundation. Published by Oxford University Press on behalf of Crohn's & Colitis Foundation.en_US
dc.subjectadalimumaben_US
dc.subjectinfliximaben_US
dc.subjecttherapeutic drug monitoringen_US
dc.titleProactive Drug Monitoring Is Associated With Higher Persistence to Infliximab and Adalimumab Treatment and Lower Healthcare Utilization Compared With Reactive and Clinical Monitoringen_US
dc.typeArticleen_US
dc.identifier.doi10.1093/crocol/otaa050
dc.identifier.pmid32743546
dc.source.volume2
dc.source.issue3
dc.source.beginpageotaa050
dc.source.endpage
dc.source.countryUnited States
dc.source.countryEngland


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