Solid Tumors

Atlanta, GA—The combination of the investigational MET inhibitor savolitinib plus the EGFR inhibitor osimertinib (Tagrisso) achieved encouraging responses in patients with MET-amplified, EGFR-positive non–small-cell lung cancer (NSCLC) and acquired, MET-driven resistance to previous therapies, with an acceptable side-effect profile. These findings represent interim results of 2 expansion cohorts of a phase 1b clinical trial presented at the 2019 American Association for Cancer Research meeting.
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Atlanta, GA—Immune checkpoint inhibitors represent a tremendous advance in the treatment of several types of cancers. Although approximately 20% to 25% of patients will have durable responses with these agents, it has been challenging to find biomarkers to identify who these patients are.
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On May 3, 2019, the US Food and Drug Administration (FDA) approved ado-trastuzumab emtansine (Kadcyla; Genentech) for the adjuvant treatment of patients with HER2-positive early breast cancer who have residual invasive disease after neoadjuvant taxane and trastuzumab-based treatment. Patients should be selected for treatment with this agent based on an FDA-approved companion diagnostic test (Ventana Medical System’s PATHWAY anti-HER-2/neu [4B5] Rabbit Monoclonal Primary Antibody assay or INFORM HER2 Dual ISH DNA Probe Cocktail assay).
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San Francisco, CA—Moving PD-1 or PD-L1 inhibitors to an early line of therapy, immediately after chemoradiation, has improved survival for patients with unresectable, stage III non–small-cell lung cancer (NSCLC).
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San Francisco, CA—Tumor expression of PD-L1 has consistently predicted ­response and survival outcomes in non–small-cell lung cancer (NSCLC), whereas the role of PD-L1 in immune cells is unclear, said Edward B. Garon, MD, Director, Thoracic Oncology Program, David Geffen School of Medicine, University of California, Los Angeles, at the 2019 ASCO-SITC Clinical Immuno-Oncology Symposium.
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On October 16, 2018, the FDA approved talazoparib (Talzenna; Pfizer), a poly (ADP-ribose) polymerase (PARP) inhibitor, for the treatment of patients with HER2-­negative, locally advanced or metastatic breast cancer and deleterious or suspected deleterious germline BRCA mutation, as identified by an FDA-approved test.
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San Francisco, CA—The immunotherapy combination of nivolumab (Opdivo) and ipilimumab (Yervoy) provides durable clinical benefit in patients with previously treated DNA mismatch repair–deficient (dMMR)/microsatellite instability-high (MSI-H) metastatic colorectal cancer (CRC).
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Breast cancer affects more women than any other type of cancer, and represents 15% of all new cancer cases in the United States. A total of 252,710 new breast cancer cases were estimated to be diagnosed in 2017, and more than 40,600 deaths. The prognosis worsens for patients with locally advanced breast cancer and even more so for those with metastatic disease.
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