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The RAS oncogenes are the most frequently mutated class of oncogenes in human cancers, and this has prompted a search for Ras inhibitors to effectively treat tumors with these mutations. Despite intensive efforts, however, none has materialized clinically because K-Ras is proving to be a very...
Plasma vascular endothelial growth factor A (VEGF-A) and tumor neuropilin-1 “are strong biomarker candidates for predicting clinical outcome in patients with advanced gastric cancer” after treatment with bevacizumab (Avastin). This was the conclusion of a mandatory biomarker program following up on ...
Additional noteworthy gastrointestinal cancer studies presented during oral abstract sessions at the 2012 ASCO Annual Meeting included the following trials in metastatic colorectal cancer. Perifosine/Capecitabine Fails in Phase III Trial Adding perifosine, an oral alkylphospholipid inhibitor that...
During the upcoming Gastrointestinal Cancers Symposium, to be held on January 24–26, direct your patients to www.cancer.net/gisymposium, where they can get research highlights from the 2013 Symposium. Also, your patients can download or listen to podcasts with ASCO experts explaining what this...
The 10th annual Gastrointestinal Cancers Symposium, held recently in San Francisco, was jointly sponsored by ASCO, the AGA (American Gastroenterological Association), ASTRO (American Society for Radiation Oncology), and the SSO (Society of Surgical Oncology). “We seek to present the newest...
A Surveillance, Epidemiology, and End Results (SEER) database analysis reported by Ravi Shridhar, MD, PhD, and colleagues in Cancer indicates that patients receiving surgery and radiation therapy for metastatic gastric cancer have prolonged survival compared with those receiving either alone or...
The MTOR serine/threonine kinase pathway is implicated in regulation of neuroendocrine tumor growth. In a study reported in the Journal of Clinical Oncology, Qian and colleagues investigated the potential prognostic significance of MTOR pathway component expression in patients with neuroendocrine...
The FDA has assigned Priority Review to the regulatory submission for ramucirumab as a single-agent treatment for advanced gastric cancer following disease progression after initial chemotherapy. Ramucirumab is a human monoclonal antibody that specifically blocks the vascular endothelial growth...
Progress in the treatment of gastric cancer has lagged behind advances in other solid tumor malignancies. A modest but clear survival benefit with the use of adjuvant therapy combined with surgery has been achieved, including the use of postoperative adjuvant chemotherapy as shown in large-scale...
Vascular endothelial growth factor (VEGF)– and VEGF receptor-2 (VEGFR-2)–mediated signaling and angiogenesis seem to have an important role in the pathogenesis of gastric cancer. In the phase III REGARD trial reported in Lancet, Charles S. Fuchs, MD, MPH, of Dana-Farber Cancer Institute, Boston,...
Disease-free survival is an acceptable surrogate for overall survival in trials of cytotoxic agents for gastric cancer in the adjuvant setting, the GASTRIC group concluded after conducting a meta-analysis of data from 3,288 individual patients enrolled in 14 randomized clinical trials. The trials...
In the global phase III RAINBOW trial in patients with metastatic gastric cancer, the investigational monoclonal antibody ramucirumab significantly improved both progression-free and overall survival, when added to paclitaxel in second-line therapy, as reported at the 2014 Gastrointestinal Cancers...
This Clinical Trials Resource Guide is meant to increase awareness of currently recruiting NCI- or academic institution–sponsored clinical studies for your patients with gastrointestinal cancers. All of the studies are listed on the National Institutes of Health website at ClinicalTrials.gov, and...
The U.S. Food and Drug Administration (FDA) has approved ramucirumab (Cyramza) to treat patients with advanced or metastatic gastric cancer or gastroesophageal junction adenocarcinoma with disease progression on or after prior treatment with fluoropyrimidine- or platinum-containing chemotherapy....
By detecting certain volatile organic compounds in exhaled breath, NanoArtificial Nose technology (NA-NOSE) was able to differentiate patients with gastric cancer from those with benign lesions, with high accuracy, in a poster that earned a merit award at Digestive Disease Week 2014, the largest...
CD44 is a gastric cancer stem cell marker, and the hedgehog signaling pathway can be dysregulated by cancer stem cells during tumorigenesis. In a study reported in Clinical Cancer Research, Yoon and colleagues found that high CD44 expression was associated with chemotherapy resistance and poorer...
A new report from the International Agency for Research on Cancer (IARC), an agency of the World Health Organization, urges health authorities of countries with high stomach cancer burden to include stomach cancer in their national cancer control programs and allocate more resources to control the...
As reviewed in this issue of The ASCO Post (page 155), the RAINBOW trial is an international phase III study demonstrating improved overall survival with ramucirumab (Cyramza) plus paclitaxel as second-line therapy for patients with advanced gastric/gastroesophageal junction adenocarcinoma over...
In the phase III RAINBOW trial reported in The Lancet Oncology, Hansjochen Wilke, MD, Director of Medical Oncology/Hematology at Kliniken Essen-Mitte, Essen, Germany, and colleagues found that adding the vascular endothelial growth factor receptor 2 (VEGFR2) inhibitor ramucirumab (Cyramza) to...
Patients with gastrointestinal stromal tumor (GIST) can achieve remission on tyrosine kinase inhibitors, but almost all of them eventually develop resistance to these agents. The PAZOGIST trial results suggest that pazopanib (Votrient)—a broad-spectrum tyrosine kinase inhibitor—may be an effective ...
Surgeons at the cutting edge are offering minimally invasive resection to patients with small gastrointestinal stromal tumors (GISTs) deemed to be low-risk, according to panelists at a session of the American College of Surgeons 2014 Clinical Congress in San Francisco. “We are seeing more small...
When melanoma patients develop metastases to the gastrointestinal (GI) tract or pancreas, resection of these lesions may improve survival, according to two single-institution studies presented at the 2015 Gastrointestinal Cancers Symposium. In a study that earned a Merit Award, researchers reported ...
The 2015 Gastrointestinal Cancers Symposium, held January 15–17 in San Francisco, attracted almost 4,000 attendees, who heard or viewed data from nearly 800 scientific abstracts and lectures. Here are our summaries of some of the many important developments from the meeting. Bevacizumab Plus...
In a new study,1 more precise estimates of age-associated risks of gastric and breast cancer were derived for carriers of the CDH1 gene mutation, a cancer-predisposing gene that is abnormal in families meeting criteria for clinically defined hereditary diffuse gastric cancer (HDGC). David G....
The use of radiation therapy in the treatment of gastrointestinal cancer has evolved over the past several decades, in a gradual, stepwise fashion. Since most gastrointestinal cancers are diagnosed at a locally advanced stage, coupled with the inherent sensitivity of most parts of the...