6 months, compared with 7.4 months for those receiving only paclitaxel, representing a 19% reduction in risk (p = .0169) with ramucirumab. Median progression-free survival was 4.4 months and 2.9 months, respectively, with a 27% reduction in risk (p < .0001). The objective response rate associated with the combination was 28% versus 16% with paclitaxel alone (p = .0001). At 6 months, the progression-free

survival rate was 36 versus 17%, and at 9 months 22 versus 10%, respectively. In addition, the disease control rate was much better with NVP-BGJ398 molecular weight ramucirumab, 80 versus 64%, respectively (p < .0001). Adverse events of grade ≥3 were somewhat greater with ramucirumab/paclitaxel, including neutropenia (40.7 vs 18.8%), leukopenia (17.4 vs 6.7%), hypertension (14.1 vs 2.4%), anemia (9.2 vs 10.3%), fatigue (7.0 vs 4.0%), abdominal pain (5.5 vs 3.3%), and asthenia (5.5 vs 3.3%). Thus, the REGARD and the RAINBOW trials clearly demonstrate that ramucirumab is an effective new option for second-line therapy of advanced GC. The epidermal growth factor receptor (EGFR) is the target of the monoclonal antibody inhibitors cetuximab and panitumumab, for the treatment of patients with metastasized

colorectal cancer without mutations of the RAS gene. Unfortunately, the addition of either cetuximab or panitumumab to standard platinum-based and fluoropyrimidine-based combination chemotherapy in unselected patients with advanced GC did Selleckchem Imatinib not provide any additional benefit to standard

chemotherapy alone and cannot be recommended for use in an unselected population with advanced esophagogastric adenocarcinoma [16, 17]. The receptor tyrosine kinase c-MET and its ligand, the hepatocyte growth factor (HGF), are involved in the regulation of multiple cellular processes including cell proliferation, invasion and angiogenesis. The HGF/c-MET signaling pathway is frequently over-expressed in GC and represents a candidate target for personalized cancer treatment. Whether or not treatment with the c-MET/HGF antibody rilotumumab in combination with a standard chemotherapy (epirubicin, cisplatin and capecitabine) significantly improves overall survival in subjects with unresectable locally advanced or metastatic MET positive gastric or gastroesophageal junction adenocarcinoma 上海皓元 is being evaluated in a phase 3, multicentre, randomized, double-blind, placebo-controlled study [18]. Recent advances in the understanding of immunology and antitumor immune responses have led to the development of new immunotherapies, including monoclonal antibodies that inhibit immune checkpoint pathways. The cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4) and programmed cell death protein-1 (PD-1) pathways are two of several immune checkpoint pathways that play critical roles in controlling T-cell immune responses [19]. CTLA-4 and PD-1 are expressed by T cells.