Abstract
Background: Bendamustine-based regimens are often used in the management of patients with chronic lymphocytic leukemia (CLL) but few studies have analyzed the comorbidity- and/or adverse event (CAE)-related healthcare costs in patients receiving these regimens in a real-world setting. Aims: To describe all-cause and CAE-related healthcare costs in relapse/refractory (R/R) elderly patients with CLL treated with bendamustine-based regimens in a real-world setting. Methods: Adult patients with R/R CLL who received bendamustine-based regimens on/after January 2010 were selected from the Medicare Limited Data Set (LDS) 5% Standard Analytic Files. Selected patients were classified into cohorts based on the two most prevalent bendamustine-based regimens observed (index treatment): 1) bendamustine + rituximab (BR cohort) and 2) bendamustine monotherapy (B-mono cohort). For each cohort, all-cause and CAE-related healthcare costs, while on treatment, were reported per-patient-per-month (PPPM). Overall survival (OS) rates following initiation of the index treatment were described using age- and gender-adjusted Kaplan-Meier curves. Results: A total of 275 patients were included in the BR cohort and 100 patients in the B-mono cohort. Most patients were male and the mean age was approximately 75 years old. During treatment, total all-cause healthcare costs were $14,520 PPPM for the BR cohort and $13,125 PPPM for the B-mono cohort—outpatient costs (mainly driven by CLL-drug costs) represented 86.1% of the total all-cause healthcare costs for the BR cohort and 69.8% for the B-mono cohort. CAE costs accounted for 58.3% of the total all-cause healthcare costs for the BR cohort and 66.9% for the B-mono cohort. Median OS was 35 months in the BR cohort and 21 months in the B-mono cohort. Conclusion: In this population of elderly patients with R/R CLL treated with bendamustine-based regimens, CAEs were common and translated into important medical costs. Median OS was also relatively short suggesting an unmet medical need.
Highlights
Chronic lymphocytic leukemia (CLL) is a type of lymphoproliferative neoplasm characterized by progressive accumulation of mature but functionally incompetent B-lymphocytes in the blood, bone marrow, and in later stages of the disease, lymph nodes, liver, and spleen [1] [2]
Bendamustine-based regimens are often used in the management of patients with chronic lymphocytic leukemia (CLL) but few studies have analyzed the comorbidity- and/or adverse event (CAE)-related healthcare costs in patients receiving these regimens in a real-world setting
A total of 275 patients were included in the bendamustine and rituximab (BR) cohort and 100 patients in the bendamustine in monotherapy (B-mono) cohort
Summary
Chronic lymphocytic leukemia (CLL) is a type of lymphoproliferative neoplasm characterized by progressive accumulation of mature but functionally incompetent B-lymphocytes in the blood, bone marrow, and in later stages of the disease, lymph nodes, liver, and spleen [1] [2]. Since 2014, new oral targeted therapies for R/R CLL have entered the market [7] [8] [9] These new agents are currently evaluated in clinical trials with or against a bendamustine-based regimen, which is commonly used in real-world practice [10] [11]. Bendamustine-based regimens are often used in the management of patients with chronic lymphocytic leukemia (CLL) but few studies have analyzed the comorbidity- and/or adverse event (CAE)-related healthcare costs in patients receiving these regimens in a real-world setting. Aims: To describe all-cause and CAE-related healthcare costs in relapse/refractory (R/R) elderly patients with CLL treated with bendamustine-based regimens in a real-world setting.
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