First-line avelumab treatment in patients with metastatic Merkel cell carcinoma: 4-year follow-up from part B of the JAVELIN Merkel 200 study

Background - Results from the JAVELIN Merkel 200 study led to the approval of avelumab [an anti-programmed death-ligand 1 (PD-L1) antibody] for the treatment of metastatic Merkel cell carcinoma (mMCC) in multiple countries and its inclusion in the treatment guidelines as a preferred or recommended t...

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Hauptverfasser: D'Angelo, Sandra P. (VerfasserIn) , Lebbé, C. (VerfasserIn) , Mortier, L. (VerfasserIn) , Brohl, A. S. (VerfasserIn) , Fazio, N. (VerfasserIn) , Grob, J. -J. (VerfasserIn) , Prinzi, N. (VerfasserIn) , Hanna, G. J. (VerfasserIn) , Hassel, Jessica C. (VerfasserIn) , Kiecker, F. (VerfasserIn) , von Heydebreck, A. (VerfasserIn) , Güzel, G. (VerfasserIn) , Nghiem, P. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: May 2024
In: ESMO open
Year: 2024, Jahrgang: 9, Heft: 5, Pages: 1-7
ISSN:2059-7029
DOI:10.1016/j.esmoop.2024.103461
Online-Zugang:Verlag, kostenfrei, Volltext: https://doi.org/10.1016/j.esmoop.2024.103461
Verlag, kostenfrei, Volltext: https://www.sciencedirect.com/science/article/pii/S2059702924012298
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Verfasserangaben:S.P. D’Angelo, C. Lebbé, L. Mortier, A.S. Brohl, N. Fazio, J.-J. Grob, N. Prinzi, G.J. Hanna, J.C. Hassel, F. Kiecker, A. von Heydebreck, G. Güzel & P. Nghiem

MARC

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520 |a Background - Results from the JAVELIN Merkel 200 study led to the approval of avelumab [an anti-programmed death-ligand 1 (PD-L1) antibody] for the treatment of metastatic Merkel cell carcinoma (mMCC) in multiple countries and its inclusion in the treatment guidelines as a preferred or recommended therapy in this setting. Here, we report 4-year follow-up results from the cohort of patients with mMCC who received avelumab as first-line treatment. - Patients and methods - In part B of JAVELIN Merkel 200, a single-arm, open-label, phase II study, patients with mMCC who had not received prior systemic therapy for metastatic disease received avelumab 10 mg/kg via intravenous infusion every 2 weeks until confirmed disease progression, unacceptable toxicity, or withdrawal. In this analysis, long-term overall survival (OS), patient disposition, and subsequent treatment were analyzed. - Results - In total, 116 patients received first-line avelumab. At the data cutoff (2 February 2022), the median follow-up was 54.3 months (range 48.0-69.7 months). Seven patients (6.0%) remained on treatment and an additional 21 patients remained in follow-up (18.1%); 72 patients (62.1%) had died. The median OS was 20.3 months [95% confidence interval (CI) 12.4-42.0 months], with a 4-year OS rate of 38% (95% CI 29% to 47%). In patients with PD-L1+ or PD-L1− tumors, the 4-year OS rate was 48% (95% CI 26% to 67%) and 35% (95% CI 25% to 45%), respectively. In total, 48 patients (41.4%) received poststudy anticancer drug therapy, most commonly etoposide (20.7%), carboplatin (19.0%), and avelumab (12.1%). - Conclusions - Avelumab first-line monotherapy in patients with mMCC resulted in meaningful long-term OS, which compared favorably with historical studies of first-line chemotherapy. These results further support the role of avelumab as a standard of care for patients with mMCC. 
650 4 |a avelumab 
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