Journal
JOURNAL FOR IMMUNOTHERAPY OF CANCER
Volume 11, Issue 5, Pages -Publisher
BMJ PUBLISHING GROUP
DOI: 10.1136/jitc-2022-006555
Keywords
immunotherapy; kidney neoplasms; lung neoplasms; melanoma; tumor escape
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With the increasing use of PD-(L)1 inhibitors in different treatment settings, there is a significant need to overcome resistance and provide clinical benefits for patients. This manuscript presents key discussion themes and positions reached through a year-long effort, focusing on eligibility criteria, comparators, endpoints, and trial design options for combination therapies in melanoma, NSCLC, or RCC patients after PD-(L)1 pathway blockade.
With multiple PD-(L)1 inhibitors approved across dozens of indications by the US Food and Drug Administration, the number of patients exposed to these agents in adjuvant, first-line metastatic, second-line metastatic, and refractory treatment settings is increasing rapidly. Although some patients will experience durable benefit, many have either no clinical response or see their disease progress following an initial response to therapy. There is a significant need to identify therapeutic approaches to overcome resistance and confer clinical benefits for these patients. PD-1 pathway blockade has the longest history of use in melanoma, non-small cell lung cancer (NSCLC), and renal cell carcinoma (RCC). Therefore, these settings also have the most extensive clinical experience with resistance. In 2021, six non-profit organizations representing patients with these diseases undertook a year-long effort, culminating in a 2-day workshop (including academic, industry, and regulatory participants) to understand the challenges associated with developing effective therapies for patients previously exposed to anti-PD-(L)1 agents and outline recommendations for designing clinical trials in this setting. This manuscript presents key discussion themes and positions reached through this effort, with a specific focus on the topics of eligibility criteria, comparators, and endpoints, as well as tumor-specific trial design options for combination therapies designed to treat patients with melanoma, NSCLC, or RCC after prior PD-(L)1 pathway blockade.
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