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1.
Ann Hematol ; 2024 Apr 03.
Article in English | MEDLINE | ID: mdl-38568260

ABSTRACT

In the field of chronic myeloid leukemia (CML), new strategies are needed to increase the rate of successful treatment discontinuations, a crucial goal in this disease. Anti-PD-L1 checkpoint inhibitors are a promising therapeutic approach in CML after the demonstration of an increase of these inhibitory molecules in patients with CML. A phase Ib/II (NCT04793399, registration date March 11, 2021) open-label exploratory trial has been conducted to evaluate the safety of atezolizumab, a humanized anti-PD-L1 antibody, in combination with bosutinib in patients with newly diagnosed chronic phase CML. A total of 36 patients were planned to be enrolled, but the study had to be prematurely terminated due to safety concerns. Nine patients were included in the study, and only 8 went on to receive the combination with atezolizumab. There were a total of 44 adverse events (AEs) during the study period. The most frequent were gastrointestinal (50%), mostly mild (86% grade 1-2). The most serious AEs were hepatic. There were 17 hepatic AEs in 5 patients. Of the hepatic AEs 5 were during the bosutinib monotherapy phase and 12 during the combination phase (AST increase x4, ALT increase x4, blood bilirubin increase x1, alkaline phosphatase elevation x2, GGT increase x2), most of them grade 3-4. There were 2 patients who presented a dose-limiting toxicity; a grade 3 elevation of transaminases, that led to premature termination of the study. The combination of atezolizumab with bosutinib presents hepatotoxicity as a dose-limiting effect and therefore we do not recommend to explore this combination in future studies.

2.
Oncol Ther ; 5(1): 31-40, 2017.
Article in English | MEDLINE | ID: mdl-28680953

ABSTRACT

INTRODUCTION: Lenalidomide is an active agent that was approved for use in the EU in 2015 as a first-line therapy for previously untreated, non-transplant eligible multiple myeloma patients. Our objective was to assess the cost impact of lenalidomide when selected as a first-line treatment for transplant-ineligible patients in France, Germany, Italy, Spain, and the United Kingdom (EU5). METHODS: We developed a cost-impact model of the total costs associated with newly diagnosed multiple myeloma over 5 years in the EU5 based on treatment duration and time to progression (TTP) (taken from trial data). We compared a baseline scenario (of current lenalidomide uptake) with two alternative future scenarios. Future Scenario A used an increased uptake of first-line lenalidomide: up to 50% in Year 5. Future Scenario B was similar to the baseline, but included a 20% increased uptake of the triple therapy regimen, carfilzomib, lenalidomide, and dexamethasone (KRd) at second line. RESULTS: Compared to alternative first-line care pathways, lenalidomide provides a time to progression advantage of up to 5.1 months. In the baseline scenario, the costs per patient were €40,692 in Year 1. Future Scenario A showed an additional expenditure of €867 per patient in Year 1, increasing to €3358 per patient by Year 5, a 2.1% and 8.2% increase from baseline, respectively. However, lenalidomide use was associated with a lower monthly hospitalisation per-patient cost (€813) compared with bortezomib (€1173) and thalidomide (€1532). Future Scenario B was associated with a 29% increase in cost. CONCLUSIONS: Compared to other first line therapies, lenalidomide delays time to progression resulting in associated savings across a patient's treatment pathway and overall is likely to result in a limited impact on budget. Lenalidomide should, therefore, be considered as a first treatment option for multiple myeloma patients ineligible for transplant. FUNDING: Celgene Ltd.

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