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Update on benefit of immunotherapy and targeted therapy in melanoma: the changing landscape.

ABSTRACT: Malignant melanoma is on the rise. There have been recent advances in targeted agents and immunotherapies that have improved the management and treatment of patients with advanced melanoma. This review discusses the clinical efficacy and unique side effects of targeted immunotherapy and the role of predictive biomarkers in better selection of patients who would derive most benefit from specific treatments. Additionally, this review addresses concerns about the best sequencing algorithms for the currently available targeted agents. By thoroughly and extensively researching through PubMed and the American Society of Clinical Oncology, 69 published articles and abstracts were identified as addressing topics related to malignant melanoma and immunotherapy. The research was divided into subcategories discussing cytokine-based therapy, immunotherapy, molecularly targeted agents, other novel targeted agents, and combination regimens for malignant melanoma. New immune checkpoint inhibitors and targeted agents are able to improve immune-mediated regulatory effects against tumors and, specifically in advanced melanoma, are associated with improvement in overall survival. These new agents have distinct side effects that are often controlled and reversed with dose reductions and/or use of corticosteroids. Currently, there are clinical trials underway to assess the role of combination therapy, whereas other trials are focusing on devising algorithms to delineate how best to sequentially administer these drugs. Although there has been tremendous progress in the management of advanced melanoma with immunotherapy and targeted agents, there is still much to be learned about clinically useful predictive biomarkers and combination therapies as well as how to administer these agents safely.

SUBMITTER: Srivastava N

PROVIDER: S-EPMC4073973 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Update on benefit of immunotherapy and targeted therapy in melanoma: the changing landscape.

Srivastava Neeharika N McDermott David D

Cancer management and research 20140620

Malignant melanoma is on the rise. There have been recent advances in targeted agents and immunotherapies that have improved the management and treatment of patients with advanced melanoma. This review discusses the clinical efficacy and unique side effects of targeted immunotherapy and the role of predictive biomarkers in better selection of patients who would derive most benefit from specific treatments. Additionally, this review addresses concerns about the best sequencing algorithms for the ...[more]

PMID: 25018651

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Project description:Opinion statementMelanoma has several clinically and pathologically distinguishable subtypes, which also differ genetically. Mutation patterns vary among different melanoma subtypes, and efficacy of immune-checkpoint inhibitors differs depending on the subtype of melanoma. In spite of the recent revolution of systemic therapies for advanced melanoma, access to innovative agents is still restricted in many countries. This review article aimed to describe the epidemiology and current status of systemic therapies for melanoma in Japan, where melanoma is rare, but access to innovative agents is available. Acral and mucosal melanomas, which are common in Asian populations, predominantly occur in sun-protected areas and share several biological features. Both the melanomas harbor KIT mutation in approximately 15% of the cases; BRAF or NRAS mutation is found in approximately 10-15% of acral melanoma, but these mutations are less frequent in mucosal melanoma. Combined use of BRAF and MEK inhibitors is one of the standards of care for patients with advanced BRAF-mutant melanoma. In patients with melanoma harboring KIT mutation in exon 11 or 13, KIT inhibitors can be a treatment option; however, none of them have been approved in Japan. Immune-checkpoint inhibitors are expected to be less effective against acral and mucosal melanomas because their somatic mutation burden is lower than those in non-acral cutaneous melanomas. A recently completed phase II trial of nivolumab and ipilimumab combination therapy in 30 Japanese patients with melanoma, including seven with acral and 12 with mucosal melanoma, demonstrated an objective response rate of 43%. Regarding oncolytic viruses, canerpaturev (C-REV, also known as HF10) and talimogene laherparepvec (T-VEC) are currently under review in early phase trials. In the adjuvant setting, dabrafenib plus trametinb combination, nivolumab monotherapy, and pembrolizumab monotherapy were approved in July, August, and December 2018 in Japan, respectively. However, most of the adjuvant phase III trials excluded patients with mucosal melanoma. A phase III trial of adjuvant therapy with locoregional interferon (IFN)-β versus surgery alone is ongoing in Japan (JCOG1309, J-FERON), in which IFN-β is injected directly into the site of the primary tumor postoperatively, so that it would be drained through the untreated lymphatic route to the regional node basin. After the recent approval of these new agents, the JCOG1309 trial will be revised to focus on patients with stage II disease. In conclusion, acral and mucosal melanomas have been treated based on the available medical evidence for the treatment of non-acral cutaneous melanomas. Considering the differences in genetic backgrounds and therapeutic efficacy of immunotherapy, specialized therapeutic strategies for these subtypes of melanoma should be established in the future.

Dataset Information

Update on benefit of immunotherapy and targeted therapy in melanoma: the changing landscape.

Publications

Update on benefit of immunotherapy and targeted therapy in melanoma: the changing landscape.

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