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In a study reported in the Journal of Clinical Oncology, Chubb et al found that genetic diagnosis of high-penetrance susceptibility to colorectal cancer can be achieved in a sizeable proportion of familial colorectal cancer cases via exome sequencing for germline mutations. Study Details The...
New data from the phase II PEAK and phase III PRIME studies support the first-line use of panitumumab (Vectibix) in combination with FOLFOX (fluorouracil, leucovorin, oxaliplatin) in patients with wild-type RAS metastatic colorectal cancer. The study results were presented during a poster session...
The annual rate of primary tumor removal for stage IV colorectal cancer has decreased since 1988, and the trend toward nonsurgical management of the disease noted in 2001 coincides with the availability of newer chemotherapy and biologic treatments, according to study reported by Hu et al in JAMA...
Updated results from TRIBE, an Italian phase III study of patients with metastatic colorectal cancer, indicate that FOLFOXIRI (leucovorin, fluorouracil [5-FU], oxaliplatin, irinotecan) chemotherapy in combination with bevacizumab (Avastin) is superior to the standard FOLFIRI (leucovorin, 5-FU,...
A recent study on the use of minimally invasive surgery for colorectal cancer at National Comprehensive Cancer Network (NCCN) centers has found that although laparoscopic colectomy results in equivalent oncologic outcomes compared to open colectomy, its adoption nationally has been slow. An...
New findings from an international phase III study of 1,072 patients with advanced colorectal cancer whose disease progressed on or after initial therapy indicate that a combination of the targeted drug ramucirumab (Cyramza) and FOLFIRI (irinotecan, fluorouracil, leucovorin) chemotherapy provides a ...
A retrospective review of clinical data on 145 patients with stage I to III rectal cancer indicates that patients who achieved complete response after treatment with chemoradiation and systemic chemotherapy had similar 4-year survival rates regardless of whether they had immediate surgery or...
A prospective analysis of data from a phase III study of patients newly diagnosed with metastatic colorectal cancer indicates that patients with higher vitamin D levels have better outcomes after treatment with chemotherapy and targeted therapy. The median overall survival for patients with the...
Patients with metastatic colorectal cancer showed a continued and persistent improvement over time in overall survival when they received ziv-aflibercept (Zaltrap) in addition to FOLFIRI (irinotecan, fluorouracil, leucovorin), reported by Ruff et al in the European Journal of Cancer. Survival was...
Patients with locally advanced rectal cancer who receive neoadjuvant radiation therapy with either irinotecan plus capecitabine or oxaliplatin plus capecitabine have a 4-year overall survival rate of 85% and 75%, respectively, according to a study reported by Wong et al in the International Journal ...
Approximately 5% to 6% of cases of colorectal cancer are associated with germline mutations conferring an inherited predisposition for disease. As reported by Stoffel et al in the Journal of Clinical Oncology, ASCO has endorsed, with qualifying statements, the European Society for Medical Oncology...
The effects of PMS2 germline mutations are less well understood than those of other Lynch syndrome–associated mismatch repair gene mutations. In a European cohort study reported in the Journal of Clinical Oncology, ten Broeke et al found that risks of colorectal cancer and endometrial cancer...
In an analysis reported in The Lancet Oncology, Schmoll et al found no difference in survival outcomes with adjuvant capecitabine vs fluorouracil (5-FU)/leucovorin with or without oxaliplatin in patients with stage III colon cancer and no adverse impact of adjuvant oxaliplatin on post-relapse...
In a study reported in the Journal of the National Cancer Institute, Di Narzo et al found that individual colon cancer gene-expression risk scores contributed little to the prognostic ability of traditional risk factors. Study Details The study involved evaluation of four gene-expression risk...
In an analysis of patients with T1 node-positive colon cancer who had previous surgery, adjuvant chemotherapy provided a significant survival advantage, according to a study by Ganapathi et al in Diseases of the Colon and Rectum. However, the investigators noted that a significant minority of this...
Racial disparities in colon cancer survival rates may be explained by differences in the health of the patients at diagnosis—both in the stage of the cancer and comorbid conditions—rather than by differences in subsequent treatment, a new study has found. Focusing efforts on prevention...
In a study reported in the Journal of Clinical Oncology, Shi et al found a modest correlation of progression-free survival with overall survival as first-line treatment endpoints in patients with metastatic colorectal cancer. The study involved individual patient- and trial-level data from 16,762...
In a study reported in JAMA Surgery, Lucas et al found wide variation in raw hospital readmission rates after colorectal cancer surgery but little variation in readmission in risk-adjusted analysis. Thirty-day readmission rates have been reported at 10% to 14% in this setting. Study Details The...
In the next 15 years, more than 1 in 10 colon cancers and nearly 1 in 4 rectal cancers will be diagnosed in patients younger than the traditional screening age, according to researchers at The University of Texas MD Anderson Cancer Center. This growing public health problem is underscored by data...
Patients with untreated metastatic colorectal cancer who received FOLFOXIRI (fluorouracil [5-FU], leucovorin, oxaliplatin, irinotecan) plus bevacizumab (Avastin) had improved survival compared to patients who received FOLFIRI (5-FU, leucovorin, irinotecan) plus bevacizumab in a phase III...
There has been a dramatic increase in the use of laparoscopic colectomy for colon cancer. In a Medicare data study reported in the Journal of Clinical Oncology, Reames and colleagues found that use of laparoscopic colectomy varied from 0% to 66.8% across hospital referral regions in the United...
Cancer is an unwanted experiment in progress. As the disease advances, tumor cells accumulate mutations, eventually arriving at ones that give them the insidious power to grow uncontrollably and spread. Distinguishing drivers of cancer from benign mutations open opportunities for developing...
Compared with normal colorectal mucosae, nearly half of colorectal tumors showed medium-to-high levels of lecithin retinol acyltransferase (LRAT) hypermethylation, according to the results of a study reported by Cheng et al in Medical Oncology. This finding was noted more frequent in earlier tumor...
Overweight and obesity are associated with increased risk of primary colorectal cancer, as well as increased risk of breast, endometrial, esophageal, pancreatic, and kidney cancers. In a pooled analysis of prospective cohort studies reported in the Journal of Clinical Oncology, Gibson et al found...
The U.S. Food and Drug Administration (FDA) has granted Fast Track designation for Taiho Oncology’s TAS-102, a novel agent currently under investigation for the treatment of refractory metastatic colorectal cancer. TAS-102 is an oral combination investigational anticancer drug consisting of...
A large prospective, randomized, controlled trial investigating whether individualized genetic and environmental risk assessment of colorectal cancer susceptibility improves adherence to screening in average-risk persons, has found that the information was not enough to persuade nonadherent...
At least 14 million major medical conditions among U.S. adults aged 35 years and older were attributed to cigarette smoking by a study estimating the disease burden of cigarette smoking, which, according to the study’s authors, “remains immense.” Among current and former smokers,...
In a study reported in the Journal of the National Cancer Institute, Inamura et al found that hypomethylation in long interspersed nucleotide element-1 (LINE-1) is associated with greater colorectal cancer–specific and overall mortality in high-degree microsatellite instability vs...
Some cancers, like breast and prostate cancer, are driven by hormones such as estrogen and testosterone, but to date, there are none that are understood to be driven by the lack of a hormone. New evidence reported by researchers at Thomas Jefferson University, Philadelphia, suggests that human...
A large, prospective study involving more than 75,000 adults in western Washington has found that frequent use of fiber-based laxatives is associated with a decreased risk of colorectal cancer. The study also found that use of nonfiber laxatives is linked to significantly increased risk of...
A retrospective study led by researchers at Brigham and Women's Hospital has found an overuse of colonoscopies for colorectal cancer screening and surveillance. The study demonstrated that endoscopists commonly recommended shorter follow-up intervals than established guidelines support, and these...
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 had disease progression on oxaliplatin-based chemotherapy persisted beyond median...
The phase III CONCUR trial of regorafenib (Stivarga) monotherapy in Asian patients with previously treated metastatic colorectal cancer confirmed the overall survival benefit seen in the previous CORRECT trial and in an exploratory analysis suggested the benefit is substantial in patients not...
In a Korean phase II trial reported in The Lancet Oncology, Hong et al found that adjuvant FOLFOX (oxaliplatin, fluorouracil [5-FU], leucovorin) prolonged progression-free survival and overall survival vs 5-FU/leucovorin in patients with locally advanced rectal cancer who had received neoadjuvant...
There are few data available on long-term risk of colorectal cancer mortality after adenoma removal. In a Norwegian study reported in The New England Journal of Medicine, Løberg et al found that patients who had low-risk adenomas removed had lower colorectal cancer mortality risk and those...
A modeling study reported in JAMA Internal Medicine by van Hees and colleagues showed that colonoscopy screening at intervals shorter than 10 years or continuing past 75 years of age in the Medicare population is associated with a reduced net health benefit from a societal perspective. Study ...
A subset of patients with stage III colon cancer had improved survival rates when treated with irinotecan-based therapy, according to a new study in Gastroenterology. When added to the standard chemotherapy treatment—fluorouracil [5-FU] and leucovorin—adjuvant irinotecan therapy...
A team of researchers led by the University of Arizona Steele Children’s Research Center discovered that curcumin—the bioactive molecule derived from the spice turmeric—blocks the protein cortactin in colon cancer. Cortactin, a protein essential for cell movement, is frequently...
In a retrospective cohort study reported in JAMA Internal Medicine, Tran et al found a low rate of colorectal cancer and a relatively high rate of postprocedure hospitalization in elderly patients undergoing surveillance colonoscopy. Study Details The study involved patients aged ≥ 50 years...
Use of panitumumab (Vectibix) and cetuximab (Erbitux) in patients with metastatic colorectal cancer decreased significantly after the publication of clinical trial evidence that anti-EGFR antibodies should be restricted to wild-type KRAS tumors, subsequent ASCO guidelines recommending testing for...
The Norwegian Colorectal Cancer Prevention 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 Holme et al in JAMA, the 11-year follow-up shows significant...
In a European phase III FIRE-3 trial reported in The Lancet Oncology, Heinemann et al found no difference in response rate, the primary endpoint, between FOLFIRI (fluorouracil, leucovorin, and irinotecan) plus the anti-EGFR antibody cetuximab (Erbitux) vs FOLFIRI plus the anti-VEGF-A antibody...
The U.S. Food and Drug Administration (FDA) today 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...
Risk-adjusted margin positivity rate has been suggested for use as a rectal cancer surgery quality metric. In an observational cohort study reported in the Journal of Clinical Oncology, Massarweh et al from The University of Texas MD Anderson Cancer Center identified risk-adjusted margin positivity ...
In a UK population-based cohort study reported in the Journal of Clinical Oncology, Cardwell et al found that statin use after diagnosis of colorectal cancer was associated with a 29% reduction in colorectal cancer–specific mortality and a 25% reduction in all-cause mortality. Improvements...
An analysis of the gut microbiome in patients from three clinical groups representing the multistage progression in colorectal cancer has found that the composition of the gut microbiome differentiates individuals with healthy colons from those with adenomas and carcinomas. Adding gut microbiome...
In a Scottish study reported in Journal of Clinical Oncology, Zgaga et al found strong associations between plasma levels of 25-hydroxyvitamin D (25-OHD) after a diagnosis of colorectal cancer and colorectal cancer–specific and all-cause mortality. Significant interactions of vitamin D...
Lieu et al recently analyzed the effect of age on outcome in patients with metastatic colorectal cancer using the ARCAD (Aide et Recherche en Cancérologie Digestive) database. The findings, reported in the Journal of Clinical Oncology, indicate a U-shaped risk of death and death or...
In a study reported in the Journal of the National Cancer Institute, Noreen et al found that aspirin and hormone-replacement therapy reduced age-related gene promoter DNA methylation, and smoking and high body mass index (BMI) increased methylation in the colonic mucosa in women. Similar...
Using a multidimensional platform that combined nanofluidic technology for quantitative polymerase chain reaction (PCR) analysis and quantitative fluorescent immunohistochemistry for protein analysis, researchers at the Danbury Hospital Biomedical Research Institute were able to accurately predict...