Abstract
Background
Home-infusions (HI) for biologic medications are an option for inflammatory bowel disease (IBD) patients in the United States (US). We aimed to describe the population receiving HI and report patient experience with HI.
Methods
We conducted a retrospective cohort study in the Quintiles-IMSLegacy PharMetrics Adjudicated Claims Database from 2010-2016 to describe the population receiving infliximab and vedolizumab HI and determine predictors for an urgent/emergent visit post-HI. We then administered a cross-sectional survey to IBD-Partners Internet-based cohort participants to assess knowledge and experience with infusions.
Results
We identified claims for 11,892 conventional infliximab patients, 1,573 home infliximab patients, 438 conventional vedolizumab patients and 138 home vedolizumab patients. There were no differences in demographics or median charges with infliximab home and conventional infusions. Home vedolizumab infusions had a greater median charge than conventional vedolizumab infusion. Less than 4% of patients had an urgent/emergent visit post-HI. Charlson comorbidity index >0 (OR:1.95, 95% CI:1.01-3.77) and Medicaid (OR:3.01, 95%CI:1.53-5.94) conferred significantly higher odds of urgent/emergent visit post-HI. In IBD-Partners, 644 IBD patients responded; 56 received HI. The majority chose HI to save time and preferred HI to conventional infusions. Only 2 patients reported an urgent/emergent visit for HI-related problems.
Conclusions
HI appears to be safe in IBD patients receiving infliximab and vedolizumab. However, patients with fewer resources and more co-morbidities are at increased risk for an urgent/emergent visit post-HI. The overall patient experience with HI is positive. Expansion of HI may result in decreased therapy-related logistic burden for carefully selected patients.