Jaafar Bennouna, MD, on Colorectal Cancer: Clinical Trial Findings on Targeted Treatments and Chemotherapy
Jaafar Bennouna, MD, of the University of Nantes, discusses findings from a phase II French study of bevacizumab or cetuximab plus chemotherapy after progression with bevacizumab plus chemotherapy in patients with wild-type KRAS metastatic colorectal cancer (Abstract 477O).
Study Finds Gut Microbes May Promote Immune Responses Against Colorectal Cancer
Colorectal cancer is the third leading cancer-related cause of death worldwide, accounting for 774,000 deaths in 2015, according to the World Health Organization. Now, a study presented at the third CRI-CIMT-EATI-AACR International Cancer Immunotherapy Conference: Translating Science Into Survival, ...
First-Line Cetuximab vs Bevacizumab Plus Chemotherapy in KRAS Wild-Type Colorectal Cancer
A phase III trial has shown no significant difference in overall survival with first-line cetuximab (Erbitux) vs bevacizumab (Avastin) plus chemotherapy in patients with advanced or metastatic KRAS wild-type colorectal cancer. These study findings were reported by Alan Venook, MD, of University of ...
Labetuzumab Govitecan in Heavily Pretreated Patients With Metastatic Colorectal Cancer
As reported by Dotan et al in the Journal of Clinical Oncology, the antibody-drug conjugate labetuzumab govitecan showed antitumor activity in a phase I/II trial in patients with heavily pretreated metastatic colorectal cancer who had received prior irinotecan therapy. The agent comprises...
Association of Systemic Inflammation and Sarcopenia With Survival in Early-Stage Colorectal Cancer
Results from the C SCANS (Colorectal Cancer: Sarcopenia, Cancer, and Near-Term Survival) study indicate that prediagnosis systemic inflammation and at-diagnosis sarcopenia are associated with an increased mortality risk in patients with nonmetastatic colorectal cancer. The findings were reported in ...
African American Men Have Lowest Survival Rates Among Patients With Anal Cancer
Over the past 30 years, squamous cell carcinoma of the anus has been one of the few cancers with a steadily rising incidence in the United States, with the most rapid increase seen in black men. To further investigate this trend, researchers at the University of Texas Southwestern Medical Center...
Clinical Genomics Implements QIAGEN’s Tube Collection Technology for Colorectal Cancer Recurrence Assay
On August 21, Clinical Genomics announced they have implemented QIAGEN’s PAXgene circulating cell-free DNA tube blood sample collection in its Colvera colorectal cancer recurrence assay. Colvera, an integrated liquid biopsy solution, is designed to enable easy and accurate...
Nodal Stage Migration and Prognosis in Anal Cancer
In a study reported in The Lancet Oncology, Sekhar et al found that the increasing proportion of lymph node–positive disease associated with enhanced detection techniques has led to nodal stage migration in anal cancer, which may reduce prognostic discrimination on the basis of lymph node...
Clinical Trials Actively Recruiting Patients With Stage II/III Colorectal Cancer
The information contained in this Clinical Trials Resource Guide includes actively recruiting clinical studies focused on patients with stage II or III colorectal cancer. These studies highlight dietary intervention, supplements, immunotherapy, combination chemotherapy, neoadjuvant therapy, and...
Colorectal Cancer Mortality Rates in Adults Aged 20 to 54 Years From 1970 to 2014
In a research letter to JAMA, Siegel et al reported that overall colorectal cancer mortality rates have declined in the United States between 1970 and 2014 in patients aged 20 to 54 years but increased in white persons in this age group between 2004 and 2014. Study Details In the study,...
Imaging and Biomarker Test Could More Accurately Predict Longer-Term Patient Response to Regorafenib in Colorectal Cancer
Administering a magnetic resonance imaging (MRI) scan and a blood test to patients with metastatic colorectal cancer may help to select those who would benefit from a targeted cancer treatment, a new study published by Khan et al in Gutreported. Researchers found that after only 2 weeks on the...
Nivolumab in Advanced DNA Mismatch Repair–Deficient or Microsatellite Instability–High Colorectal Cancer
The phase II CheckMate 142 trial has shown that nivolumab (Opdivo) produces durable responses in recurrent or metastatic DNA mismatch repair–deficient (dMMR)/microsatellite instability–high (MSI-H) colorectal cancer. These study findings were reported in The Lancet Oncology by Overman...
New Data Reported on Vemurafenib, Vitamin D, Selective Internal Radiotherapy, and Circulating Tumor DNA in Colorectal Cancer
RESULTS OF the IDEA trial, which showed that some patients with stage III low-risk colon cancer may require less oxaliplatin therapy (see the June 25 issue of The ASCO Post), were among the findings highlighted at the 2017 ASCO Annual Meeting Plenary Session. Other studies of interest in colorectal ...
Expert Point of View: Frank Sinicrope, MD
FRANK SINICROPE, MD, Professor of Oncology and Co-Leader of the GI Cancer Program at the Mayo Clinic, Rochester, said CHARTA addressed whether patient outcomes can be improved with a triplet regimen plus bevacizumab (Avastin) vs a standard doublet plus bevacizumab. This was based upon the finding...
More Support for FOLFOXIRI/Bevacizumab in Advanced Colorectal Cancer
A RANDOMIZED head-to-head comparison in patients with advanced colorectal cancer found that a regimen of FOLFOXIRI (fluorouracil/leucovorin, oxaliplatin, irinotecan) plus bevacizumab (Avastin) was more effective than a regimen of FOLFOX (fluorouracil/leucovorin, oxaliplatin) plus bevacizumab as...
FDA Approves Nivolumab in MSI-H or dMMR Metastatic Colorectal Cancer
Today, the U.S. Food and Drug Administration (FDA) approved nivolumab (Opdivo) injection for intravenous use for the treatment of adult and pediatric (12 years and older) patients with microsatellite instability–high (MSI-H) or mismatch repair deficient (dMMR) metastatic colorectal cancer...
Expert Point of View: Steven J. Cohen, MD, and Josep Tabarnero, MD, PhD
STEVEN J. COHEN, MD, Director of the Rosenfeld Cancer Center at Jefferson Health/Abington Hospital, Abington, Pennsylvania, and Vice Chair of Medical Oncology at Sidney Kimmel Cancer Center at Jefferson, and Josep Tabernero, MD, PhD, Head of Medical Oncology and the Gastrointestinal Tumors and...
Tumor ‘Sidedness’ in Colon Cancer: Studies Look for Explanations
TUMOR “SIDEDNESS” in colon cancer has become a topic of great interest, after right-sided tumors were shown to have a worse prognosis than left-sided ones and biologics were found to differ in efficacy based on side. At the 2017 ASCO Annual Meeting, studies explored why this might be so. Three...
FDA Grants Marketing Approval to the Praxis Extended RAS Panel
On June 29, the U.S. Food and Drug Administration (FDA) granted marketing approval to the Praxis Extended RAS Panel, a next-generation sequencing test to detect certain genetic mutations in RAS genes in tumor samples of patients with metastatic colorectal cancer. The test is used to aid in the...
Effect of Salvage Surgery on Survival in Recurrence After Treatment of Rectal Cancer
In a large single-center analysis reported in the Journal of Clinical Oncology, Ikoma et al found that salvage surgery was associated with prolonged survival in patients with lung-only and liver-only recurrence but not in those with locoregional-only recurrence after preoperative chemotherapy and...
FDA Approves Panitumumab for Use in Wild-Type RAS Metastatic Colorectal Cancer
On June 30, 2017, the U.S. Food and Drug Administration (FDA) approved the supplemental Biologics License Application (sBLA) for panitumumab (Vectibix) for patients with wild-type RAS (defined as wild-type in both KRAS and NRAS as determined by an FDA-approved test for this use) metastatic...
ESMO World GI 2017: Right-Sided Colorectal Tumors: An Internal Radiation Advantage
For patients with colorectal cancer that has metastasized to the liver, having a primary tumor on the left side as opposed to the right side of the colon is known to be a significant advantage in terms of treatment response. But a new study, presented by van Hazel et al at the European Society for...
FDA Approves Panitumumab for Use in Wild-Type RAS Metastatic Colorectal Cancer
Today, the U.S. Food and Drug Administration (FDA) approved the supplemental Biologics License Application (sBLA) for panitumumab (Vectibix) for patients with wild-type RAS (defined as wild-type in both KRAS and NRAS as determined by an FDA-approved test for this use) metastatic colorectal cancer...
First-Line Cetuximab vs Bevacizumab Plus Chemotherapy in KRAS Wild-Type Advanced Colorectal Cancer
A phase III trial has shown no significant difference in overall survival with first-line cetuximab (Erbitux) vs bevacizumab (Avastin) plus chemotherapy in patients with advanced or metastatic KRAS wild-type colorectal cancer. These study findings were reported by Venook et al in JAMA. The trial...
Underused Blood Test Could Improve Treatment for Large Swath of Patients With Colon Cancer
A simple blood test could improve treatment for more than one in six patients with stage II colon cancer, suggests new research from the Mayo Clinic. Researchers also discovered that many patients who could benefit from the test likely aren’t receiving it. These findings were published by...
ASCP/CAP/AMP/ASCO Colorectal Cancer Biomarker Guideline: A Clinician's Perspective
The joint American Society for Clinical Pathology (ASCP), College of American Pathologists (CAP), Association for Molecular Pathology (AMP), and ASCO guideline reported by Sepulveda et al, and reviewed in this issue of The ASCO Post, represents a collaboration of three pathology societies and ASCO ...
ASCP/CAP/AMP/ASCO Guideline on Molecular Biomarkers in Colorectal Cancer
As reported in the Journal of Clinical Oncology by Antonia R. Sepulveda, MD, PhD, of Columbia University, and colleagues, a joint guideline on the use of molecular biomarkers for evaluation of colorectal cancer has been developed by an expert panel from the American Society for Clinical Pathology...
Effect of Postdiagnosis Aspirin and Other NSAIDs on Survival in Colorectal Cancer
As reported by Hua et al in the Journal of Clinical Oncology, long-term survivors of colorectal cancer with KRAS wild-type tumors had improved survival with regular use of any nonsteroidal anti-inflammatory drug (NSAID) post diagnosis. The study involved data from 2,149 patients aged 18 to 74...
Expert Point of View: Cathy Eng, MD, FACP and Alfred Neugut, MD, PhD
Cathy Eng, MD, FACP, the Sophie Caroline Steves Distinguished Professor in Cancer Research at The University of Texas MD Anderson Cancer Center, Houston, said the trial demonstrates “the challenge of analyzing six individually conducted studies in a pooled analysis.” The study’s “potential...
David H. Henry, MD, on Advances in Lung Cancer, Colorectal Cancer: Expert Perspective
David H. Henry, MD, of Pennsylvania Oncology Hematology Associates, outlines abstracts focusing on chemotherapy in locally advanced rectal cancer and immune-related toxicity, response to anti–PD-L1 blockade, and epacadostat plus pembrolizumab in lung cancer.
John Marshall, MD, and Qian Shi, PhD, on Colon Cancer: Results of the IDEA Trial
John Marshall, MD, of Georgetown University, and Qian Shi, PhD, of the Mayo Clinic, discuss study findings on shortening the duration of adjuvant oxaliplatin-based therapy, linked to neurotoxicity, for patients with stage III colon cancer. (Abstract LBA1)
FDA Approves Pembrolizumab for First Tissue/Site-Agnostic Indication
On May 23, 2017, the U.S. Food and Drug Administration (FDA) granted accelerated approval to pembrolizumab (Keytruda) for adult and pediatric patients with unresectable or metastatic, microsatellite instability–high (MSI-H) or mismatch repair deficient (dMMR) solid tumors that have progressed...
Expert Point of View: Manish Shah, MD and Daniel F. Hayes, MD, FACP, FASCO
Manish Shah, MD, Director of Gastrointestinal Oncology at NewYork-Presbyterian and Weill Cornell Medicine, was impressed with the findings of the two subanalyses of CALGB 89803. “The study found a 46% reduction in the risk of recurrence with two servings of tree nuts a week, and that’s more than ...
Tree Nut Consumption May Improve Outcomes in Stage III Colon Cancer
Tree nut consumption, as well as a generally healthy lifestyle, significantly reduced the risk of cancer recurrence and death in patients with stage III colon cancer treated in the Cancer and Leukemia Group B (CALGB) 89803 trial, researchers reported at the 2017 ASCO Annual Meeting. Two subanalyses ...
ASCO 2017: Impact of Patient Age on Molecular Alterations in Colorectal Tumors
Younger patients with colon cancer appear to have more than three times as many mutations in their tumors as older patients, which could lead to more effective treatment decisions, according to researchers at Georgetown Lombardi Comprehensive Cancer Center. In a new study, they found that tumor...
Axel Grothey, MD, on Colon Cancer: Results of the IDEA Collaboration
Axel Grothey, MD, of the Mayo Clinic Rochester, discusses study findings on shortening the duration of adjuvant oxaliplatin-based therapy, linked to neurotoxicity, for patients with stage III colon cancer. (Abstract LBA1)
Temidayo Fadelu, MD, on Colon Cancer: Results From the CALGB 89803 Trial
Temidayo Fadelu, MD, of Dana-Farber Cancer Institute, discusses study findings on nut consumption and survival in stage III colon cancer patients. Higher consumption of nuts may be associated with significantly reduced cancer recurrence and death in this group. (Abstract 3517)
ASCO 2017: The IDEA Collaboration: Global Study Sets New Risk-Based Standard to Personalize Chemotherapy for Colon Cancer After Surgery
After surgery for lymph node–positive colon cancer (stage III), some patients may need only half of the long-standing standard course of chemotherapy. In an analysis of 6 clinical trials with over 12,800 patients, 3 months of chemotherapy was nearly as effective as 6 months in patients with...
Erin Van Blarigan, ScD, on Colon Cancer: The Effect of Diet and Exercise, Results From CALGB 89803
Erin Van Blarigan, ScD, of the University of California, San Francisco, discusses the value of lifestyle recommendations from the American Cancer Society for people who have been diagnosed with colon cancer, including longer disease-free and overall survival. (Abstract 10006)
Non–V600 BRAF Mutations in Metastatic Colorectal Cancer
As reported by Jones et al in the Journal of Clinical Oncology, BRAF mutations occurring outside of codon 600 are found in a small proportion of cases of metastatic colorectal cancer and are associated with improved clinical outcome. Study Details The retrospective cohort study involved 9,643...
Expert Point of View: Patrick S. Sullivan, MD
”This was a great study and novel, asking what longer-term survivors with colon cancer are dying from—the toxicity of our treatment or population-risk illnesses?” commented session co-moderator, Patrick S. Sullivan, MD, Assistant Professor of Surgery and Chief Quality Officer, Division of Surgical ...
Common Causes of Death Predominate Among Long-Term Colorectal Cancer Survivors
Patients with colorectal cancer who survive at least 5 years are increasingly likely to die from causes that are common in the general population, highlighting the importance of screening and lifestyle modification, suggested a large cohort study conducted in California.1 The analysis of more than...
FDA Grants Accelerated Approval to Pembrolizumab for First Tissue/Site-Agnostic Indication
On May 23, 2017, the U.S. Food and Drug Administration (FDA) granted accelerated approval to pembrolizumab (Keytruda) for adult and pediatric patients with unresectable or metastatic, microsatellite instability–high (MSI-H) or mismatch repair deficient (dMMR) solid tumors that have progressed ...
NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®): 2017 Guidelines
NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®): 2017 Guidelines In 1996, the National Comprehensive Cancer Network® (NCCN®) published its first set of Clinical Practice Guidelines in Oncology®, covering 8 tumor types. Guidelines are now published for more than 60 tumor types and...
Racial Differences in Risk of Interval Colorectal Cancer
A population-based cohort study by Fedewa et al investigating whether the risk for interval colorectal cancer—defined as cancer that develops after a negative colonoscopy result but before the next recommended screening—varies by race or ethnicity has found that black patients face a...
ASCO 2017: Chance of Colon Cancer Recurrence Nearly Cut in Half in Patients Who Consume Nuts
An observational study of 826 patients with stage III colon cancer showed that those who consumed 2 ounces or more of nuts per week had a 42% lower chance of cancer recurrence and 57% lower chance of death than those who did not eat nuts. A secondary analysis revealed the benefit of nut consumption ...
ASCO 2017: Healthy Lifestyle After Colon Cancer Diagnosis Helps Extend Survival
A study of 992 patients with stage III colon cancer found that those who reported a healthy lifestyle during and following adjuvant treatment had a 42% lower chance of death and a trend for lower chance of cancer recurrence than those who had less healthy lifestyles. The study will be presented by...
Surveillance and Colorectal Cancer Risk in Patients With Intermediate-Risk Adenomas
A UK retrospective study showed that colonoscopic surveillance was associated with a reduced risk of colorectal cancer among patients with removal of intermediate-risk adenomas. The study was reported in The Lancet Oncology by Atkin et al. Study Details The study involved routine lower...
Delaying Colonoscopy for 9 Months or More After Positive Fecal Screening Test May Increase Risk of Colorectal Cancer
The risk of colorectal cancer increased significantly when colonoscopy was delayed by more than 9 months following a positive fecal screening test, according to a large Kaiser Permanente study published by Rutter et al in the Journal of the American Medical Association. “With this study, we...
Tumor CD274 (PD-L1) Expression and Survival With Aspirin Use in Colorectal Cancer
According to a study reported by Hamada et al in the Journal of Clinical Oncology, postdiagnosis aspirin use was associated with improved survival vs nonuse among patients with colorectal cancer who have lower, but not higher, tumor levels of CD274 (programmed cell death 1 ligand 1; PD-L1). Study...
