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Preliminary Cost-Effectiveness and Cost-Utility Analysis of Cemiplimab in Patients with Advanced Cutaneous Squamous Cell Carcinoma in Italy

Authors Ghetti G, D'Avella MC, Pradelli L

Received 3 December 2020

Accepted for publication 23 January 2021

Published 10 February 2021 Volume 2021:13 Pages 121—133

DOI https://doi.org/10.2147/CEOR.S295605

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Prof. Dr. Dean Smith


Gianni Ghetti,1 Maria Claudia D’Avella,2 Lorenzo Pradelli1

1Department of Health Economics and Outcome Research, AdRes, Turin, Italy; 2Department of Market Access, Sanofi, Milan, Italy

Correspondence: Gianni Ghetti
Department of Health Economics and Outcome Research, AdRes, Via Vittorio Alfieri 17, Turin, 10121, Italy
Tel +39 011 765 1239
Email g.ghetti@adreshe.com

Purpose: Cutaneous squamous cell carcinoma (CSCC) is a common cancer that in most cases is curable with surgery. About 3– 5% of patients develop advanced CSCC (aCSCC) and are no longer responsive to surgery or radiation therapy. The aim of this study was to assess the cost-effectiveness and cost-utility of cemiplimab, the first systemic therapy approved in Italy for patients with aCSCC, vs platinum-based chemotherapy from the Italian National Health Service (SSN) perspective.
Methods: A partitioned survival model, which included three mutually exclusive health states, was developed to estimate costs and outcomes for patients with aCSCC, over a 30-year time horizon (lifetime). No direct evidence of the comparative efficacy and safety of cemiplimab versus other therapies currently exists. Therefore, a simulated treatment comparison (STC) was conducted to estimate the comparative efficacy of cemiplimab versus chemotherapy. Individual patient data for cemiplimab were collected from the EMPOWER-CSCC 1 trial whereas chemotherapy data were derived from a retrospective study. In the STC a regression model was used to predict outcomes for cemiplimab in the population observed in the comparator study. Costs of drug acquisition/administration and management of adverse events were included. Costs and outcomes were discounted at 3% per year. Incremental cost-effectiveness ratio (ICER) and incremental cost-utility ratio (ICUR) were calculated; sensitivity and scenario analyses were performed to assess the robustness of results.
Results: In the base-case, treatment with cemiplimab was associated with a gain of 4.89 LYs and 3.99 QALYs, compared with a platinum-based chemotherapy regimen, resulting in an estimated ICER of 27,821 €/LY gained and an ICUR of 34,110 €/QALY gained. Both ICER and ICUR were below the commonly used Italian SSN willingness to pay thresholds.
Conclusion: The use of cemiplimab, compared with a platinum-based chemotherapy regimen, can be considered a cost-effective option for the treatment of aCSCC patients in Italy.

Keywords: Italian National Health Service, ICER, partitioned survival model, non-melanoma skin cancers

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