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The tumor microenvironment contains a complex network of cytokines that contribute to the nature of intratumoral immune reactions. In a study reported in Science Translational Medicine, Mlecnik and colleagues assessed chromosomal gains and losses and expression of 59 cytokines and receptors and...
Although it is known that nuclear receptor peroxisome proliferator-activated receptor-δ/β (PPAR-d) is upregulated in colorectal cancer, the role of PPAR-d in tumorigenesis remains uncertain. In a study reported in Journal of the National Cancer Institute, Zuo and colleagues developed a mouse model...
The ASCO Cancer Research Committee recently convened four disease-specific working groups—in pancreas, breast, lung, and colon cancers—to “consider the design of future clinical trials that would produce results that are clinically meaningful to patients.” An ASCO perspective statement, reported in ...
Data from trials conducted mostly in the 1970s and 1980s established the paradigm that optimal treatment of rectal cancer requires a combination of radiation therapy, chemotherapy, and surgery.1 Virtually all of these trials, however, demonstrated that radiotherapy added only to the local control...
In a pilot study reported in the Journal of Clinical Oncology, Deborah Schrag, MD, MPH, and colleagues from Memorial Sloan Kettering Cancer Center, New York, assessed outcomes with neoadjuvant FOLFOX (fluorouracil, leucovorin, oxaliplatin)/bevacizumab (Avastin) with selective use of...
At the 19th Annual Conference of the National Comprehensive Cancer Network (NCCN), held recently in Hollywood, Florida, NCCN Panel members presented updates for several tumor types, briefly summarized here. For a more complete description of all updates, visit www.nccn.org. Breast Cancer Guidelines ...
Chronic inflammation is implicated in the development of colorectal cancer, and the plasma inflammatory biomarker macrophage inhibitory cytokine-1 (MIC-1, GDF15) may have a direct role in tumorigenesis. As reported in Journal of the National Cancer Institute, Mehta and colleagues found that...
The U.S. Food and Drug Administration (FDA) has approved panitumumab (Vectibix) for use in combination with FOLFOX (fluorouracil, leucovorin, oxaliplatin) as first-line treatment in patients with wild-type KRAS (exon 2) metastatic colorectal cancer. This approval converts the accelerated...
Finding salvageable colon cancer recurrence is akin to finding a needle in a haystack, rendering routine patient surveillance of little value. But finding that needle offers an opportunity for treating recurrent disease early, which makes surveillance worthwhile. These were the opposing views...
Some evidence suggests that dual targeting of vascular endothelial growth factor (VEGF) and placental growth factor (which binds to VEGFR-1) might provide more effective antiangiogenic therapy. In a study reported in Molecular Cancer Therapeutics, Chiron and colleagues compared the antitumor...
Colorectal cancer screening is cost-effective and “should be considered well beyond age 75 years” for individuals not previously screened, according to a computer simulation study published in the Annals of Internal Medicine. The researchers noted that while the U.S. Preventive Services Task Force...
I would like to congratulate Corley and his colleagues for their seminal work on the association between adenoma detection rate and risk of colorectal cancer, advanced colorectal cancer, and colorectal cancer mortality. The impact of their findings—reported in The New England Journal of Medicine1...
In a study of health-care organization data reported in The New England Journal of Medicine, Douglas A. Corley, MD, PhD, of Kaiser Permanente, and colleagues assessed the relationship between proportion of colonoscopies performed by a gastroenterologist that detect an adenoma and risk of subsequent ...
Data from the National Cancer Data Bank (2010–2011) suggest that 30% of patients with colorectal cancer who are eligible for adjuvant chemotherapy fail to receive it, but their odds increase by 30% when surgery is performed by laparoscopy, rather than laparotomy.1 “In this large national database...
New screening modalities and the customization of the screening population could soon change the way that screening for colorectal cancer is done. At Digestive Disease Week 2014, the largest gathering of gastrointestinal disease specialists in the world, researchers presented data suggesting that...
Call it a draw: Cetuximab (Erbitux), an EGFR inhibitor, and bevacizumab (Avastin), a VEGF inhibitor, confer comparable benefits as first-line treatment with chemotherapy for metastatic colorectal cancer, according to the phase III Cancer and Leukemia Group B (CALGB)/Southwest Oncology Group (SWOG) ...
In the Clinic provides overviews of novel oncology agents, addressing indications, mechanisms, administration recommendations, safety profiles, and other essential information needed for the appropriate clinical use of these drugs. Panitumumab (Vectibix) was recently approved by the U.S. Food and...
Survivors of nonmetastatic colorectal cancer, when surveyed about their needs and preferences for survivorship information, responded that they would prefer receiving more information about late effects of treatment, challenges to expect, general health maintenance, and risks of recurrence. Most of ...
Chronic inflammation is implicated in the development of colorectal cancer, and the plasma inflammatory biomarker macrophage inhibitory cytokine-1 (MIC-1, GDF15) may have a direct role in tumorigenesis. As reported in Journal of the National Cancer Institute, Mehta and colleagues found that...
In the phase III double-blind, placebo-controlled CONCUR trial,1 previously treated patients with stage IV adenocarcinoma of the colon or rectum had increased overall survival, the primary endpoint, when treated with regorafenib (Stivarga). Regorafenib also improved progression-free survival, a...
The new combination agent TAS-102 can improve overall survival compared to placebo in patients whose metastatic colorectal cancer is refractory to standard therapies, researchers reported at the ESMO 16th World Congress on Gastrointestinal Cancer in Barcelona.1 “Around 50% of patients with...
Patients with curatively resected rectal cancer are more likely to be disease-free at 3 years after treatment with an oxaliplatin-containing regimen than with fluorouracil (5-FU)/leucovorin, Korean investigators of the phase II multicenter ADORE trial reported at the ASCO Annual Meeting.1 Study...
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...