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A retrospective study finding a 49% false-positive of carcinoembryonic antigen (CEA) testing among patients with a history of resected colorectal cancer, “suggests that confirmation of an ongoing increase in CEA level should be universal practice before an extensive workup is initiated,” Anya...
KRAS and BRAF V600E mutations were nearly mutually exclusive and associated with specific patient and tumor characteristics, such as age and smoking status, according to an analysis of data from the N0147 phase III trial for stage III colon cancer. Primary tumors were assessed for KRAS and BRAF...
Aspirin use reduces the risk of colorectal cancer at least in part via inhibition of prostaglandin-endoperoxide synthase 2 (PTGS2, COX-2) pathways. Hydroxyprostaglandin dehydrogenase 15-(nicotinamide adenine dinucleotide; 15-PGDH, HPGD) is a metabolic antagonist of PTGS2 and is downregulated in...
The U.S. Food and Drug Administration (FDA) has approved Cologuard, the first stool-based colorectal screening test that detects the presence of red blood cells and DNA mutations that may indicate the presence of certain kinds of abnormal growths that may be cancers such as colon cancer or...
The Cancer and Leukemia Group B (CALGB)/Southwest Oncology Group (SWOG) 80405 trial, presented during the Plenary Session at this year’s ASCO Annual Meeting, demonstrated that cetuximab (Erbitux) and bevacizumab (Avastin) confer similar benefits as first-line treatment with chemotherapy for KRAS...
Use of a preventive surgical site infection bundle that spanned the phases or perioperative care “was associated with a substantial reduction in [surgical site infections] after colorectal surgery,” according to results of a retrospective study of 559 patients who underwent major elective...
A let-7 microRNA-complementary site (LCS6) polymorphism in the 3’UTR of KRAS has been shown to disrupt let-7 binding and upregulate KRAS expression. As reported in Clinical Cancer Research, Sha and colleagues found that LCS6 genotype was not associated with KRAS mutation status or disease-free...
Sirt7, a member of the sirutin family, is overexpressed in some cancers. In a study of the potential role of Sirt7 in colorectal cancer reported in Clinical Cancer Research, Yu and colleagues found that increased Sirt7 protein level in colorectal cancer tissue was associated with higher tumor stage ...
As reported in Clinical Cancer Research, Manceau and colleagues attempted to identify microRNAs that can predict response to anti-EGFR therapy in wild-type KRAS metastatic colorectal cancer patients. Initial screening of 1,145 microRNAs in fresh frozen tumor samples from chemotherapy-refractory...
The survival benefit demonstrated in the VELOUR study for FOLFIRI (irinotecan, fluorouracil [5-FU], leucovorin) plus ziv-aflibercept (Zaltrap) vs FOLFIRI plus placebo in metastatic colorectal cancer patients who progressed on oxaliplatin-based chemotherapy persisted beyond median survival times for ...
Analyses of data from 27,404 people aged 65 and older participating in the National Health Interview Survey (NHIS) from 2000 through 2010 suggest that overscreening for prostate, breast, cervical, and colorectal cancer screening “is common in both men and women, which not only increases health care ...
Researchers at Roswell Park Cancer Institute have been awarded three of four grants by the National Comprehensive Cancer Network (NCCN) Oncology Research Program to evaluate and define the clinical effectiveness of the investigational compound nintedanib. Nintedanib is an investigational...
Colon cancer screening using colonoscopy has significantly decreased the incidence and mortality of colorectal cancer in the United States. In the National Polyp Study (NPS), colorectal cancer was prevented by removal of adenomatous polyps.1 A more recent study looking at long-term follow-up from...
Few data are available on long-term risk of colorectal cancer mortality after adenoma removal. In a Norwegian study reported in The New England Journal of Medicine, Magnus Løberg, MD, of the Department of Health Management and Health Economics, University of Oslo, and colleagues found that patients ...
Polymorphisms in FcγR (receptor for the constant region of immunoglobulin G) have been reported to be associated with improved immune-mediated effects of cetuximab (Erbitux) in metastatic colorectal cancer. In a study reported in Clinical Cancer Research, Sclafani and colleagues analyzed the...
ASCO is among the medical professional societies supporting the National Colorectal Cancer Roundtable (NCCRT) by recruiting physician leaders from within its membership for a pilot program called Links of Care. The program was established to promote health equity and to improve access to colorectal ...
In a study reported in the Journal of the National Cancer Institute, Demir and colleagues used novel three-dimensional migration and Schwann cell outgrowth assays to monitor the timing and specificity of Schwann cell migration and cancer invasion toward peripheral neurons through digital...
The information contained in this Clinical Trials Resource Guide includes actively recruiting clinical studies of people with colon or rectal cancer in the newly diagnosed and metastatic settings. The studies include phase I, Ib, II, observational, and interventional trials investigating new drug...
Half of all premature deaths from colorectal cancer (described as deaths in people ages 25 to 64) in the United States are linked to ethnic, socioeconomic, and geographic inequalities, and therefore could be prevented according to a new study by American Cancer Society researchers. The report,...
While the incidence of colorectal cancer in people 50 years or older has declined, the incidence among people 20 to 49 years has increased, according to a report published online recently by JAMA Surgery.1 From 1998 through 2006, the incidence of colorectal cancer declined 3% per year in men and...
The final analysis of the international phase III QUASAR2 trial confirmed the lack of benefit for bevacizumab (Avastin) as part of the adjuvant treatment of colorectal cancer. “There is no role for bevacizumab in combination with capecitabine as adjuvant treatment for colorectal cancer,” said...
The phase III CONCUR trial1 of regorafenib (Stivarga) monotherapy in Asian patients with previously treated metastatic colorectal cancer confirmed the overall survival benefit seen in the previous CORRECT trial,2 and in a planned subgroup analysis, suggesting the benefit is substantial in patients ...
Studies presented at the European Society for Medical Oncology (ESMO) 2014 Congress in Madrid added insight regarding maintenance therapy in metastatic colorectal cancer, an area lacking a clear recommended strategy following first-line regimens. Two phase III trials found benefit for bevacizumab...
Now that clinicians know to “think beyond KRAS” in metastatic colorectal cancer—and test for all RAS mutations, not just those in exon 2—it seems this is still not sufficient for selecting the best drugs. At the European Society for Medical Oncology (ESMO) 2014 Congress in Madrid, a proffered paper ...
Over the past 50 years, there have been incredible changes in the field of colorectal cancer,” Emily K. Bergsland, MD, noted in opening the colorectal cancer session at the Best of ASCO meeting in Chicago. Dr. Bergsland is a gastrointestinal oncologist at the Helen Diller Family Comprehensive...
Two phase III studies presented at the Best of ASCO meeting in Chicago shed more light on the role of maintenance therapy in patients with metastatic colorectal cancer undergoing first-line treatment with oxaliplatin-based chemotherapy. The two studies compared maintenance therapy with bevacizumab...
Mortality from colorectal cancer remains a public-health concern, being the second leading cause of cancer-related death for men and women combined. The major preventive measure for colorectal cancer is to screen for and remove adenomatous polyps. Average-risk individuals (ie, those who do not have ...
The Norwegian Colorectal Cancer Prevention (NORCCAP) trial comparing colorectal cancer screening with flexible sigmoidoscopy vs no screening showed no reduction in colorectal cancer incidence or mortality after 7 years of follow-up. As reported by Øyvind Holme, MD, of Sorlandet Hospital...
A large, population-based, observational study suggests that participation in weekly tumor boards can improve outcomes in oncologic care. Specifically, oncologist participation in weekly tumor board meetings was associated with improved survival in patients with stage IV small cell lung cancer and...
Individualized genetic and environmental risk assessment of susceptibility to colorectal cancer does not influence adherence to screening in average-risk persons, according to results from a two-group, randomized, controlled trial. Among patients who received genetic and environmental risk...
“Little risk-adjusted variation exists in hospital readmission rates after colorectal surgery,” according to an analysis of data from 44,822 patients who underwent colorectal resection for cancer at 1,401 U.S. hospitals between 1997 and 2002. “The use of readmission rates as a high-stakes quality...
Patients with untreated metastatic colorectal cancer who received FOLFOXIRI (folinic acid, fluorouracil, oxaliplatin, irintotecan) plus bevacizumab (Avastin) had improved survival compared with patients who received FOLFIRI (folinic acid, fluorouracil, irintotecan) plus bevacizumab in a phase III...
"Nobody tells a 28 year old to get a colonoscopy.” It’s the sad but true reality that many young adults may be at risk for colorectal cancer. Unfortunately, many people, young adults in particular, are not aware of the risk factors and do not get screened early enough to catch the disease when it...
When classifying response to chemoradiation among patients with locally advanced rectal cancer, the American Joint Committee on Cancer (AJCC) Cancer Staging Manual (7th edition) system “is most accurate and should be adopted as the standard,” Attaphorn Trakarnsanga, MD, and colleagues at Memorial...
Despite advances in detection and treatment, colorectal cancer remains the third deadliest cancer among men and women in the United States. To get a better understanding of the current state of this disease and what lies ahead, The ASCO Post recently spoke with colorectal cancer expert John L....
A study by investigators at Dana-Farber Cancer Institute has demonstrated that vitamin D can protect some people with colorectal cancer by heightening the immune system’s vigilance against tumor cells. The research, released earlier this month by the journal Gut, shows a link between vitamin D and...
The oncoprotein and transcription factor MYB is overexpressed in colorectal cancer and critical to proliferation and tumor cell survival. In a study reported in Clinical & Translational Immunology, Cross and colleagues developed a DNA vaccine to generate an MYB-specific immune response on the...
Some patients with rectal cancer who achieve a complete response to neoadjuvant chemoradiation therapy can be monitored for tumor recurrence and may never need surgery, according to a retrospective review from patients at Memorial Sloan Kettering Cancer Center, New York, presented at the 2015...
I am writing in regard to the report and commentary in this issue on the RAISE Trial. To begin, a discussion of this phase III clinical trial presented at the 2015 Gastrointestinal Cancers Symposium (RAISE study) may not be the most appropriate forum to air legitimate views on finances and...
In 1995, I was diagnosed with advanced colorectal cancer and given little chance to live. The dire diagnosis came years after being assured by several physicians that the problem I was having with rectal bleeding and anemia was nothing more than the result of an internal hemorrhoid. Busy raising...
In a recent issue of the Journal of Clinical Oncology,1 and as reviewed in this issue of The ASCO Post, an ASCO expert endorsement panel reviewed and endorsed, with minor qualifications, the European Society for Medical Oncology (ESMO) clinical practice guidelines for management of familial/genetic ...
Approximately 5% to 6% of cases of colorectal cancer are associated with germline mutations conferring an inherited predisposition for disease. As reported by Stoffel and colleagues in the Journal of Clinical Oncology,1 ASCO has endorsed, with qualifying statements, the European Society for Medical ...
The phase III international RAISE trial found that ramucirumab (Cyramza) extends survival when given with chemotherapy to metastatic colorectal cancer patients who progress on treatment,1 but some experts commented that “financial toxicity” might be an issue, given the modest benefit. “The RAISE...
The persistent disparity in colon cancer survival by race seemed to be related more to differences in health at diagnosis than to differences in subsequent treatment, according to an analysis of data from the Survey, Epidemiology, and End Results (SEER)–Medicare database. “Our study suggests that...
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...
Stock your practice with Cancer.Net resources. Cancer.Net has a comprehensive guide to colorectal cancer at www.cancer.net/colorectal and a shorter, one-page colorectal cancer fact sheet. You will also find specialized resources for survivorship, palliative care, and managing the cost of cancer...
For the treatment of locally advanced rectal cancer, the optimal timing between the end of neoadjuvant chemoradiation therapy and surgical resection appears to be 60 days, according to an analysis of the National Cancer Database presented at the 2015 Gastrointestinal Cancers Symposium.1 An interval ...
“Laparoscopic colectomy has been shown to have equivalent oncologic outcomes to open colectomy for the management of colon cancer, but its adoption nationally has been slow,” Heather Yeo, MD, of Memorial Sloan-Kettering Cancer Center in New York, and colleagues noted in reporting on a study...
Patients with metastatic colorectal cancer showed a continued and persistent improvement in overall survival over time when they received the VEGF inhibitor aflibercept in addition to FOLFIRI (leucovorin, fluorouracil, irinotecan), according to a study reporting on the overall survival benefit and...
While colorectal cancer predominantly occurs in people over 50 years old, rates are increasing among younger patients. It is important for physicians not to ignore symptoms in patients who are young, “simply because they are young,” Jason A. Zell, DO, MPH, told The ASCO Post. Dr. Zell is the...