Efficacy of Sequential Ipilimumab Monotherapy versus Best Supportive Care for Unresectable Locally Advanced/Metastatic Gastric or Gastroesophageal Junction Cancer.
Abstract Purpose: Ipilimumab, a monoclonal antibody that blocks cytotoxic T-lymphocyte–associated protein-4 interactions, enhances T-cell activation and promotes tumor immunity. This phase II study evaluated the safety and efficacy of ipilimumab monotherapy versus best supportive care (BSC) among patients with advanced/metastatic gastric or gastroesophageal junction cancer who achieved at least stable disease with first-line chemotherapy. Experimental Design: Eligible patients were randomized to ipilimumab 10 mg/kg every 3 weeks for four doses, then 10 mg/kg every 12 weeks for up to 3 years, or BSC, which could include continuation of fluoropyrimidine until progression or toxicity. The prim…
Sequential ipilimumab (Ipi) versus best supportive care (BSC) following first-line chemotherapy (Ctx) in patients (pts) with unresectable locally advanced or metastatic gastric or gastro-esophageal junction (GEJ) cancer: A randomized, open-label, two-arm, phase II trial (CA184-162) of immunotherapy as a maintenance concept.
TPS4151 Background: First-line systemic CTX is standard-of-care for advanced gastric cancer. However, most pts relapse or have severe adverse events (AEs), creating a need for new therapies with better benefit/risk and toxicity profiles. Endogenous immune activity against tumor cells has been demonstrated in the human gastric cancer tumor microenvironment, supporting a role for immunotherapy. As a new maintenance concept, sequential administration of immunotherapy may prolong clinical benefit of first-line CTX before disease progression (PD). Ipi, a fully human monoclonal antibody which binds CTLA-4, augments the antitumor immune response. Ipi improved overall survival (OS) in patients wit…
Analysis of Heritability and Shared Heritability Based on Genome-Wide Association Studies for Thirteen Cancer Types
BACKGROUND: Studies of related individuals have consistently demonstrated notable familial aggregation of cancer. We aim to estimate the heritability and genetic correlation attributable to the additive effects of common single-nucleotide polymorphisms (SNPs) for cancer at 13 anatomical sites.METHODS: Between 2007 and 2014, the US National Cancer Institute has generated data from genome-wide association studies (GWAS) for 49 492 cancer case patients and 34 131 control patients. We apply novel mixed model methodology (GCTA) to this GWAS data to estimate the heritability of individual cancers, as well as the proportion of heritability attributable to cigarette smoking in smoking-related cance…
A randomized, open-label, two-arm phase II trial comparing the efficacy of sequential ipilimumab (ipi) versus best supportive care (BSC) following first-line (1L) chemotherapy in patients with unresectable, locally advanced/metastatic (A/M) gastric or gastro-esophageal junction (G/GEJ) cancer.
4011Background: Pts with advanced gastric cancer have a poor prognosis with median overall survival (OS) of ~1 yr. Ipi is a monoclonal antibody that enhances T-cell activation and T-effector cell t...