Cost-Effectiveness Analysis of Sequential Treatment Strategies for Advanced Melanoma in Real Life in France

Marguerite Kandel, Aurélie Bardet, Stéphane Dalle, Clara Allayous, Laurent Mortier, Bernard Guillot, Caroline Dutriaux, Marie Thérèse Leccia, Sophie Dalac, Henri Montaudie, Philippe Saiag, Delphine Legoupil, Florence Brunet-Possenti, Jean Philippe Arnault, Julie De Quatrebarbes, Marie Beylot-Barry, Eve Maubec, Thierry Lesimple, François Aubin, Jean Jacques GrobFlorence Granel-Brocard, Pierre Emmanuel Stoebner, Alain Dupuy, Brigitte Dreno, Stefan Michiels, Céleste Lebbe, Isabelle Borget

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Nine drugs have been marketed for 10 years for the treatment of advanced melanoma (AM). With half of patients reaching a second line, the optimal sequence of treatments remains unclear. To inform policy-makers about their efficiency, we performed a cost-effectiveness analysis of sequential strategies in clinical practice in France, for BRAF-mutated and wild-type patients. A multistate model was developed to describe treatment sequences, associated costs, and health outcomes over 10 years. Sequences, clinical outcomes, utility scores, and economic data were extracted from the prospective Melbase cohort, collecting individual data in 1518 patients since 2013, from their AM diagnosis until their death. To adjust the differences in patients’ characteristics among sequences, weighting by inverse probability was used. In the BRAF-mutated population, the MONO-targeted therapies (TT)-anti-PD1 sequence was the less expensive, whereas the anti-PD1-BI-TT sequence had an incremental cost-effectiveness ratio (ICER) of 180,441 EUR/QALY. Regarding the BRAF wild-type population, the three sequences constituted the cost-effective frontier, with ICERs ranging from 116 to 806,000 EUR/QALY. For BRAF-mutated patients, the sequence anti-PD1-BI-TT appeared to be the most efficient one in BRAF-mutated AM patients until 2018. Regarding the BRAF wild-type population until 2018, the sequence starting with IPI+NIVO appeared inefficient compared to anti-PD1, considering the extra cost for the QALY gained.

    Original languageEnglish
    Pages (from-to)9255-9270
    Number of pages16
    JournalCurrent Oncology
    Volume29
    Issue number12
    DOIs
    Publication statusPublished - 1 Dec 2022

    Keywords

    • advanced melanoma
    • cost-effectiveness analysis
    • immunotherapy
    • real-life clinical practice
    • targeted therapy

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