4.3 Article

Real-world treatment sequencing and healthcare costs among CLL/SLL patients treated with venetoclax

Journal

CURRENT MEDICAL RESEARCH AND OPINION
Volume 37, Issue 8, Pages 1409-1420

Publisher

TAYLOR & FRANCIS LTD
DOI: 10.1080/03007995.2021.1929894

Keywords

Chronic lymphocytic leukemia; small lymphocytic lymphoma; healthcare costs; retrospective study; tumor lysis syndrome; venetoclax

Funding

  1. Janssen Scientific Affairs, LLC

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This study aimed to describe treatment sequencing and healthcare costs among CLL/SLL patients treated with venetoclax in a US managed care population. Patients previously receiving ibrutinib had lower mean total all-cause and clinical event-related costs during their venetoclax line of therapy than those previously receiving non-ibrutinib therapy. Highest mean costs were observed during venetoclax initiation phase in this descriptive study.
Objective This study aimed to describe treatment sequencing and healthcare costs among chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL) patients treated with venetoclax in a US managed care population. Methods CLL/SLL patients initiating venetoclax between 04/11/2016 and 06/30/2019 were selected from Optum's de-identified Clinformatics Data Mart Database. Costs per-patient-per-month were described during the first 60 days of venetoclax-based treatment (initiation phase) and subsequent post-initiation phase. Based on venetoclax prescribing information, clinical event-related costs were identified through claims for tumor lysis syndrome (TLS) diagnosis, monitoring, prophylaxis, immunoglobulin treatment, neutropenia, thrombocytopenia, infection, renal impairment, hypertension, or cardiac arrhythmia. Statistical testing was not conducted due to small sample size. Results Twenty-five, 30, and 66 patients initiated venetoclax as their first observed regimen (1L), second observed regimen (2L), and third or later observed regimen (3L+), respectively. Most 2L (56.7%) and 3L+ (74.2%) venetoclax recipients previously received ibrutinib. Mean monthly all-cause costs during the initiation phase were $26,429 (1L cohort), $19,580 (2L cohort), and $23,918 (3L + cohort). Among the 2L cohort, mean monthly all-cause [clinical event-related] (including TLS) costs during initiation and post-initiation phases of venetoclax treatment were $15,506 [$6368] (initiation phase) and $14,318 [$5273] (post-initiation phase; median duration: 3.7 months) for patients receiving 1L ibrutinib, and $24,908 [$12,198] (initiation phase) and $16,905 [$7066] (post-initiation phase; median duration: 3.0 months) for patients not receiving 1L ibrutinib. Conclusions In this descriptive study, highest mean costs were observed during venetoclax initiation phase. Venetoclax patients previously receiving ibrutinib had lower mean total all-cause and clinical event-related (including TLS) costs during their venetoclax line of therapy than those previously receiving non-ibrutinib therapy.

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