Jarrett Failing, MD, of the Mayo Clinic, discusses his study data, which show some agreement between the expression of human leukocyte antigens in primary non–small cell lung cancer with brain metastasis. His findings may have some bearing on resistance to immune checkpoint inhibitors (Abstract 43).
Luis I. Ruffolo, MD, of the University of Rochester, discusses preclinical studies showing that semaphorin 4D blockade may sensitize pancreatic tumors to chemoimmunotherapy combinations (Abstract 26).
John N. Lukens, MD, of the Hospital of the University of Pennsylvania, discusses his finding that taking antibiotics within 3 months of starting treatment with immune checkpoint inhibitors may lead to inferior overall survival in patients with stage III or IV melanoma. The antibiotics were also linked to a higher incidence of severe immune-mediated colitis (Abstract 56).
Philippa G. Corrie, PhD, of Cambridge University Hospitals NHS Foundation Trust, discusses a review of 2,322 patients with metastatic melanoma receiving first-line immune checkpoint inhibitors as standard of care in England between 2014 and 2018 (Abstract 55).
Kevin Tyan, of Kinnos, and currently a medical school student at Harvard University, discusses his study findings, which showed that patients with melanoma who are treated with immunotherapy had a significantly lower risk of developing colitis if they also took vitamin D ( Abstract 89).
Dario Vignali, PhD, of the University of Pittsburgh and UPMC Hillman Cancer Center, summarizes his Keynote Address, which covered what drives systemic immune dysfunction in patients with cancer, what promotes inhibitory receptor expression, and what limits the persistence of antigen-specific T cells.
