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Anti-PD1 with Cemiplimab in Advanced Cutaneous Squamous-Cell Carcinoma
By: News Feed | Last updated: 26th July 2018 | In: ImmunoOncology, Immunotherapy, Melanoma & Skin Cancer, Oncology
cemiplimab, CSCC, non-melanoma skin cancer, Regeneron, REGN2810, Sanofi, squamous cell skin cancer
Programmed death 1 (PD-1) inhibition with the novel human anti-PD1 monoclonal antibody cemiplimab (REGN2810, Regeneron and Sanofi) in patients with locally advanced or metastatic cutaneous squamous-cell carcinoma (CSCC) resulted in a response in approximately half of the patients.1Migden MR, et al. N Engl J Med. 2018; DOI: 10.1056/NEJMoa1805131,2Sanofi (2018, April 30) [Press release] retrieved from http://www.news.sanofi.us/2018-04-30-FDA-to-Conduct-Priority-Review-of-Cemiplimab-as-a-Potential-Treatment-for-Advanced-Cutaneous-Squamous-Cell-Carcinoma
Advanced CSCC has the highest mortality among non-melanoma skin cancer. It is the second most common cancer of the skin in the Chinese and Japanese population, with an annual incidence in Asians ranging from 1.3 (Malay) to 2.6 (Chinese) per 100,000.3Kim GK, et al. J Clin Aesthet Dermatol. 2009; 2(8): 39–42. There are no approved systemic therapies for the treatment of advanced CSCC.
“This cancer may be responsive to immune therapy, because the mutation burden of the tumour is high and the disease risk is strongly associated with immunosuppression,” wrote the authors in the New England Journal of Medicine.
The pooled analysis includes two studies; a metastatic-disease cohort with cemiplimab from the pivotal Phase II EMPOWER-CSCC 1 trial (NCT02760498) and an expansion cohort of patients with locally advanced or metastatic CSCC from a Phase I study (NCT02383212) with cemiplimab in solid malignancies. In both trials, patients were treated every 2 weeks with an intravenous dose of cemiplimab (3 mg/kg) and assessed for responses every 8 weeks. The primary endpoint in the Phase II EMPOWER-CSCC 1 trial was the response rate by an independent central review.
In the Phase 1 expansion cohort study in patients with locally advanced or metastatic CSCC, cemiplimab was associated with a response in 50% (13/26) of patients (95% CI, 30-70). In the Phase 2 metastatic-disease cohort, responses were reported in 47% (28/59) of patients (95% CI, 34-61). At a median follow-up of 7.9 months, the duration of response (DoR) among the 28 responders in the Phase 2 cohort exceeded 6 months in 57% (16/28) of patients. At the time of data cutoff, 82% of responders continued cemiplimab with ongoing responses.
The safety profile was comparable with the toxicities reported in other studies with immune-checkpoint inhibitors. Common adverse events (AEs) in ≥15% of patients in the Phase II metastatic-disease cohort were diarrhoea, fatigue, nausea, constipation, and rash. AEs led to discontinuation in 7% of the patients.
- Migden MR, et al. N Engl J Med. 2018; DOI: 10.1056/NEJMoa1805131.
- Sanofi (2018, April 30) [Press release] retrieved from http://www.news.sanofi.us/2018-04-30-FDA-to-Conduct-Priority-Review-of-Cemiplimab-as-a-Potential-Treatment-for-Advanced-Cutaneous-Squamous-Cell-Carcinoma.
- Kim GK, et al. J Clin Aesthet Dermatol. 2009; 2(8): 39–42.
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This article is not medical advice. Patients should seek personal assessment by a licenced specialist. Physicians are recommended to read the full publication(s) as cited in the article before making medical decisions. This article does not supersede nor replace the published article(s).
© Copyright 2018 MediPaper Medical Communications Ltd. – Anti-PD1 with Cemiplimab in Advanced Cutaneous Squamous-Cell Carcinoma