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Estimation of Total Costs in Pediatric and Young Adult Patients with Relapsed or Refractory Acute Lymphoblastic Leukemia Receiving Tisagenlecleucel from a U.S. Hospital's Perspective.

Abstract：

BACKGROUND:Tisagenlecleucel was approved for the treatment of pediatric and young adult patients with relapsed/refractory (r/r) B-cell acute lymphoblastic leukemia (ALL) based on the pivotal ELIANA trial. OBJECTIVE:To comprehensively evaluate the total costs associated with tisagenlecleucel treatment, including costs from pre- to postinfusion periods of tisagenlecleucel in addition to the cost of tisagenlecleucel. METHODS:An economic model was developed to estimate total costs associated with tisagenlecleucel treatment from the time of leukapheresis to 2 months postinfusion from a U.S. hospital's perspective. Costs were estimated based on resource use and safety management from the ELIANA trial and were considered during the pretreatment, tisagenlecleucel infusion, and follow-up periods of treatment. Cost components included leukapheresis, lymphodepleting chemotherapy, tisagenlecleucel infusion and hospital administration, inpatient and intensive care unit admissions, medical professional visits, laboratory tests and procedures, and management of major adverse events. Scenario analyses were conducted by varying key assumptions related to adverse events and hospitalization. RESULTS:The total cost associated with tisagenlecleucel treatment among pediatric and young adult patients with r/r ALL was estimated to be $612,779, of which $137,636 (22.5%) was in addition to the list price of tisagenlecleucel ($475,000) and the associated administration cost of $143.08. The top 3 drivers of the additional cost were adverse event management ($70,968; 51.6%), inpatient and intensive care unit admissions not attributed to adverse events ($57,952; 42.1%), and laboratory tests and procedures ($5,209; 3.8%). The costs incurred during the pretreatment, infusion, and follow-up periods were $29,002, $476,659, and $107,118, respectively. In the scenario analyses, the total costs ranged from $483,169 (tisagenlecleucel treatment in the outpatient setting without adverse events) to $672,373 (tisagenlecleucel treatment in the inpatient setting with grade 3/4 cytokine release syndrome and B-cell aplasia). CONCLUSIONS:In this economic model, tisagenlecleucel treatment among pediatric and young adult patients with r/r ALL was estimated to cost $612,779. The cost of care in addition to the price of tisagenlecleucel accounted for 22.5% of the total, with adverse event management and inpatient and intensive care unit admissions being main drivers. Further studies are warranted to assess the cost of tisagenlecleucel treatment in the context of current standards of care in real-world clinical practice. DISCLOSURES:This study was supported by Novartis. The study sponsor was involved in several aspects of the research, including the study design, the interpretation of data, the writing of the manuscript, and the decision to submit the manuscript for publication. Hao is an employee of Novartis and has stock/stock options. Yang, Chai, Qi, and Wu are employees of Analysis Group, which received consulting fees from Novartis for work on this study. Part of the material in this manuscript was presented at the American Society of Hematology Annual Meeting held December 7-10, 2019, in Orlando, FL.

journal_name

J Manag Care Spec Pharm

journal_title

Journal of managed care & specialty pharmacy

authors

Yang H,Hao Y,Qi CZ,Chai X,Wu EQ

doi

10.18553/jmcp.2020.20052

subject

Has Abstract

pub_date

2020-08-01 00:00:00

pages

971-980

issue

eissn

2376-0540

issn

2376-1032

journal_volume

pub_type

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Estimation of Total Costs in Pediatric and Young Adult Patients with Relapsed or Refractory Acute Lymphoblastic Leukemia Receiving Tisagenlecleucel from a U.S. Hospital's Perspective.