AUTHOR=Dan Xiang , Huang Mengxi , Sun Zhaochen , Chu Xiaoyuan , Shi Xin , Chen Yitian 

TITLE=Case report: Concurrent intrathecal and intravenous pembrolizumab for metastatic melanoma with leptomeningeal disease

JOURNAL=Frontiers in Oncology

VOLUME=14

YEAR=2024

URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2024.1344829

DOI=10.3389/fonc.2024.1344829

ISSN=2234-943X

ABSTRACT=<p>Leptomeningeal disease (LMD) is a serious cancer complication associated with poor prognosis. Approximately 5%–25% of patients with melanoma develop LMD. Currently, no standard treatment protocol exists and very few cases have been reported. Despite ongoing advances in new therapies, treatment options for LMD remain limited. Herein, we report a case of intrathecal pembrolizumab administration in a patient with melanoma and LMD. Intrathecal pembrolizumab administration was feasible and safe at the doses tested. Drawing from this case, along with our expertise and the existing evidence on systemic immunotherapy, we propose that an immunotherapy approach involving intrathecal administration for patients with LMD from melanoma warrants additional exploration in clinical trials.</p>