• Debra Irwin, Kathleen Wilson, Stephen Thompson, and Azhar Choudhry.
• IBM Watson Health, Cambridge, MA, USA.
• Curr Med Res Opin. 2021 Apr 1; 37 (4): 623-628.

BackgroundThis study evaluated the real-world healthcare resource utilization and costs in chronic lymphocytic lymphoma (CLL) patients treated with first-line ibrutinib monotherapy (IbM) therapy or bendamustine plus rituximab (BR) combination therapy.MethodsTreatment-naïve CLL patients in the IBM MarketScan Research Databases were identified based on the first prescription of either IbM or BR therapy between 1 February 2014 and 30 August 2017.ResultsA total of 1866 patients with 12 months of continuous enrollment (IbM n = 1157; BR=n = 729) were identified. Thirty-four percent of IbM patients had at least one inpatient admission compared to 24% of BR patients. A total of 31% of IbM patients had at least one CLL-related inpatient admission compared to 20% of BR patients. Among patients with an ER visit, IbM patients visited the emergency room (ER) more frequently than BR patients. There were no differences in total cost, both all-cause and CLL-related, between the IbM and BR cohorts. However, IbM patients had significantly higher all-cause and CLL-related inpatient costs than BR patients as well as all-cause outpatient pharmacy prescriptions costs, while BR patients had significantly higher PPPM outpatient medical costs.ConclusionThe results of this study suggest that further research on the real-world effectiveness of IbM in comparison to BR combination therapy, given the comparatively higher rates of inpatient admissions, longer lengths of stay, and more ER visits observed in IbM patients relative to the BR patients is needed. Given the differences in costs, it is important to further examine the impact these healthcare expenditures have on the cost-effectiveness of IbM first line treatment.

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