scout

February 2 2020

Microsatellite instability has been an FDA-indicated biomarker for immunotherapy since 2017, when the PD-1 inhibitor pembrolizumab was approved for patients with solid tumors found to be mismatch repair deficient or MSI high. Other approvals since then, such as for the combination of ipilimumab and nivolumab in patients with MSI-H/dMMR metastatic colorectal can­cer, have established the relevance of cancer thera­pies for tumors with this biomarker specifically rather than tumor histology alone.

Adjuvant treatment with talimogene laherparepvec in patients with resectable advanced melanoma demonstrated better recurrence-free survival and overall survival compared with surgery alone, according to results of a study presented at a poster session at the 16th International Congress of the Society for Melanoma Research.

PARP inhibitors have the potential to change standards of care in prostate cancer, according to Daniel P. Petrylak, MD, who, along with his colleague, Leonard G. Gomella, MD, will cochair the New York GU: 13th Annual Interdisciplinary Prostate Can­cer Congress® and Other Genitourinary Malignancies conference, held in New York, New York.

Patients with metastatic breast cancer who carry rare mutations identified by circulat­ing tumor DNA responded to matched targeted therapies, according to results of the plasmaMATCH trial presented during the 2019 San Antonio Breast Cancer Symposium. Specifically, patients with HER2 mutations responded to neratinib and patients with AKT1 mutations responded to capivasertib.