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colorectal cancer
immunotherapy

Tumor Mutational Burden as a Marker of Response to Immunotherapy in MSI-High Metastatic Colorectal Cancer

Foundational research recently published by Schrock et al in Annals of Oncology may help patients with microsatellite instability (MSI)-high metastatic colorectal cancer decide whether to choose immunotherapy or chemotherapy as their first treatment option. “Immunotherapy is the new,...

colorectal cancer

Impact of Consensus Molecular Subtype on Outcome in Metastatic Colorectal Cancer

In a study reported in the Journal of Clinical Oncology, Lenz et al found that consensus molecular subtype of colorectal cancers was highly prognostic for outcomes in patients receiving first-line treatment for advanced disease in the phase III CALGB/SWOG 80405/Alliance trial. CALGB/SWOG 80405...

colorectal cancer
immunotherapy

IMblaze370: Atezolizumab With or Without Cobimetinib vs Regorafenib in Previously Treated Advanced Colorectal Cancer

In the phase III IMblaze370 trial reported in The Lancet Oncology, Eng et al found no survival benefit with third-line atezolizumab with or without cobimetinib vs regorafenib in patients with locally advanced or metastatic colorectal cancer. Study Details The open-label trial included 363...

colorectal cancer

Colon Cancer Proteogenomic Analysis May Uncover New Potential Treatments

A new study analyzing the entire set of genes and all the proteins produced by colon cancer tissues from patient samples has revealed a more comprehensive view of the tumor, pointing to novel cancer biologic mechanisms and possible new therapeutic strategies. This multidisciplinary and...

Gastrointestinal Cancer
Colorectal Cancer

New ASCO Guidelines on Early Detection and Treatment of Colorectal Cancer in Resource-Stratified Settings

ASCO has approved two new resource-stratified guidelines aimed at improving the early detection and treatment of colorectal cancer in all resource settings. The guidelines are a continuation of ASCO’s efforts to provide evidence-based recommendations for the management of malignancies applicable...

colorectal cancer
issues in oncology

Colonoscopy Polyp Detection Rates and Endoscopist Characteristics

Previous research has suggested that specific factors about the doctor performing colonoscopy—for example, a gastroenterologist vs a surgeon, female vs male—were associated with different rates of detection of precancerous polyps. However, a Cleveland Clinic–led research team...

colorectal cancer

SUNSHINE Trial: High-Dose Vitamin D May Benefit Patients With Metastatic Colorectal Cancer

Results of a small clinical trial suggest that supplementing chemotherapy with high doses of vitamin D may benefit patients with metastatic colorectal cancer by delaying progression of the disease. These findings were published by Ng et al in JAMA. Initial trial findings were reported at the 2017...

colorectal cancer

Primary Surgery Outcomes in MRI-Based ‘Good-Prognosis’ Rectal Cancer

In a Canadian phase II trial reported in JAMA Oncology, Kennedy et al found a low rate of positive circumferential resection margins after primary surgery in patients with rectal cancer considered to have a ‘good prognosis’ based on magnetic resonance imaging (MRI) criteria.   As...

Colorectal Cancer

Dana-Farber Launches Young-Onset Colorectal Cancer Center

Dana-Farber/Brigham and Women’s Cancer Center recently announced the launch of the Young-Onset Colorectal Cancer Center in Boston. The Center will provide expert, compassionate, and cutting-edge care to young adult patients with colon and rectal cancer, with a focus on scientific discovery and...

Colorectal Cancer
Gastrointestinal Cancer

Study Finds Shorter Treatment Course for Rectal Cancer May Actually Improve Outcomes

In patients with locally advanced rectal cancer, the delivery of all radiotherapy and chemotherapy neoadjuvantly—with a shorter course of radiation—may improve the chance of complete response and downstaging over conventional treatment, according to investigators from Washington University, St....

colorectal cancer
immunotherapy

BEACON Colorectal Cancer Trial: Safety Lead-in With Triplet Therapy for BRAF V600E–Mutant Metastatic Disease

As reported in the Journal of Clinical Oncology by Van Cutsem et al, treatment with encorafenib, binimetinib, and cetuximab for BRAF V600E–mutant metastatic colorectal cancer was associated with a manageable safety profile and evidence of activity in the safety lead-in to the phase III BEACON ...

Colorectal Cancer
Neuroendocrine Tumors
Gastrointestinal Cancer
Hepatobiliary Cancer

New Data in Colorectal, Neuroendocrine, Gastric, and Hepatocellular Cancers

THE ANNUAL GASTROINTESTINAL CANCERS SYMPOSIUM took place earlier this year in San Francisco. In addition to important studies captured in our past few issues, The ASCO Post here briefly summarizes additional interesting studies. Adjuvant Hyperthermic Intraperitoneal Chemotherapy in Colon Cancer...

colorectal cancer

Wells A. Messersmith, MD, on Managing Metastatic Colorectal Cancer: NCCN Guidelines Update

Wells A. Messersmith, MD, of the University of Colorado Cancer Center, discusses results of recent clinical trials, emerging treatment options, and approaches that may improve outcomes in patients with metastatic colorectal cancer.

colorectal cancer
immunotherapy

Pertuzumab Plus Trastuzumab in HER2-Amplified Metastatic Colorectal Cancer

As reported in The Lancet Oncology by Meric-Bernstam et al, the combination of pertuzumab and trastuzumab showed activity in HER2-amplified metastatic colorectal cancer in the phase IIa multiple basket study MyPathway. The study is evaluating activity of targeted therapies in nonindicated tumor...

colorectal cancer

Effect of Microsatellite Instability and Tumor Mutational Burden on Outcome in First-Line Treatment of Metastatic Colorectal Cancer

In an analysis of the phase III CALGB/SWOG 80405 trial reported in the Journal of Clinical Oncology, Innocenti et al found that tumor mutational burden and microsatellite instability status affected overall survival in patients receiving first-line chemotherapy plus bevacizumab or cetuximab for...

breast cancer
colorectal cancer
lung cancer
pain management

Opioid Use Among Older Survivors of Colorectal, Lung, and Breast Cancers

In a linked Surveillance, Epidemiology, and End Results and Medicare study reported in the Journal of Clinical Oncology, Salz et al found that chronic opioid use varied by cancer among older cancer survivors. By 6 years after diagnosis, survivors were no more likely to be chronic opioid users...

colorectal cancer

Combining Tumor Budding and Lymphocytic Infiltration May Improve Prognostic Accuracy in Colorectal Cancer

A study evaluating a prognostic signature derived from integrating tumor budding, lymphocyte infiltration, and their spatial relationship has found that the method could more accurately stratify patients with stage II colorectal cancer at high risk for disease-specific death compared with...

colorectal cancer
health-care policy

Effect of Affordable Care Act’s Medicaid Expansion on Colorectal Cancer Screening and Survival in Kentucky

Kentucky has been one of the most successful states in reducing its uninsured rate, which happened in part through the Affordable Care Act’s Medicaid expansion that took effect on January 1, 2014. In the past, Kentucky has reported low rates of colorectal cancer screening, and has ranked ...

colorectal cancer
lung cancer
immunotherapy

TAT 2019: Trends in Distribution of Cancer Type in Phase I Trials

The proportion of early-stage drug trials tackling the most common tumor types has declined sharply since the early 1990s, as less common cancers receive increasing attention in trials, according to new research presented by Sato et al at the TAT 2019–International Congress on Targeted...

colorectal cancer
issues in oncology

AACR 2019: Survey Finds Young-Onset Colorectal Cancer Is Often Misdiagnosed, Treated at Later Stages

A recent study by the American Cancer Society (ACS) has found that while colorectal cancer incidence in the United States is rapidly declining overall, colorectal cancer rates are increasing among young adults. According to the study, compared with adults born in the 1950s, those born in the 1990s...

Colorectal Cancer
Immunotherapy

Expert Point of View: Michael J. Overman, MD

INVITED STUDY discussant Michael J. Overman, MD, Professor of Gastrointestinal Medical Oncology at The University of Texas MD Anderson Cancer Center, Houston, is a co-investigator on CheckMate 142, which led to the approval of another immunotherapy doublet—nivolumab plus ipilimumab—in patients...

Colorectal Cancer
Immunotherapy

Durvalumab and Tremelimumab Combination Active in Refractory Microsatellite-Stable Colorectal Cancer

THE COMBINATION of durvalumab and tremelimumab prolonged median overall survival by 2.5 months compared with best supportive care alone in patients with advanced treatment-refractory colorectal cancer. These findings, which are from the randomized phase II Canadian Cancer Trials Group (CCTG) CO.26...

Colorectal Cancer

Direct-to-Consumer Genetic Test on Hereditary Colorectal Cancer Syndrome Receives FDA Clearance

ON JANUARY 22, 2019, 23andMe received U.S. Food and Drug Administration (FDA) clearance for a genetic health risk report on the hereditary colorectal cancer syndrome MUTYH-associated polyposis. The clearance follows the FDA’s authorization for 23andMe’s BRCA1/BRCA2 (Selected Variants) Genetic...

colorectal cancer

Do Certain Sedentary Behaviors Increase the Risk of Young-Onset Colorectal Cancer?

Although colorectal cancer rates in older adults have been decreasing in the United States since the mid-1980s, incidence rates for the cancer have been increasing among young and middle-aged adults, according to a study by the American Cancer Society (ACS). Based on the new data, in 2018, the ACS...

colorectal cancer

Watch-and-Wait Strategy for Rectal Cancer With Complete Clinical Response After Neoadjuvant Therapy

In a single-center retrospective case series analysis reported in JAMA Oncology, Smith et al found that a watch-and-wait approach was associated with a high rate of rectal preservation and pelvic tumor control in patients with rectal cancer with complete clinical response to neoadjuvant therapy,...

colorectal cancer

Polymorphisms in Pattern Recognition Receptors as Predictors of Oxaliplatin Benefit in Colorectal Cancer

In a study reported in the Journal of the National Cancer Institute, Gray et al found that constitutional loss of function single-nucleotide polymorphisms in the pattern recognition receptors FPR1, TLR3, and TLR4 were not associated with preferential benefit of oxaliplatin in colorectal cancer. As...

colorectal cancer

23andMe Receives FDA Clearance for Direct-to-Consumer Genetic Test on a Hereditary Colorectal Cancer Syndrome

On January 22, 23andMe received U.S. Food and Drug Administration (FDA) clearance for a genetic health risk report on MUTYH-associated polyposis, a hereditary colorectal cancer syndrome. The clearance follows the FDA’s authorization for 23andMe’s BRCA1/BRCA2 (Selected Variants)...

colorectal cancer

Pieter Tanis, MD, PhD, on Colon Cancer: Results From the COLOPEC Trial on Adjuvant HIPEC

Pieter Tanis, MD, PhD, of Amsterdam University Medical Centers, discusses study findings on adjuvant hyperthermic intraperitoneal chemotherapy (HIPEC) in patients with colon cancer who are at high risk of peritoneal metastases (Abstract 482).

colorectal cancer

Francesca Battaglin, MD, on Colorectal Cancer: Using Genetic Variants to Predict Treatment Efficacy

Francesca Battaglin, MD, of the University of Southern California Norris Comprehensive Cancer Center, discusses phase III study data on genetic variants used to predict the efficacy of cetuximab in patients with metastatic colorectal cancer (Abstract 564).

colorectal cancer

Jeffrey A. Meyerhardt, MD, MPH, on Colon Cancer: Results From the ACTS-CC 02 Trial on Adjuvant Chemotherapy

Jeffrey A. Meyerhardt, MD, MPH, of Dana-Farber Cancer Institute, discusses phase III study findings on S-1/oxaliplatin vs uracil and tegafur/leucovorin as adjuvant chemotherapy for high-risk stage III colon cancer (Abstract 484).

colorectal cancer
immunotherapy

Carl C. Schimanski, MD, PhD, on Colorectal Cancer Liver Metastases: Study Results on Tecemotide After Surgery

Carl C. Schimanski, MD, PhD, of the Municipal Hospital Darmstadt, discusses phase II study findings on adjuvant immunotherapy with tecemotide after colorectal cancer liver metastasectomy (Abstract 480). 

colorectal cancer

2019 GI Cancers Symposium: Rectal Cancer Treated With Total Neoadjuvant Therapy Plus Short-Course Radiation vs Concurrent Chemoradiation

The delivery of all radiotherapy and chemotherapy neoadjuvantly—also known as total neoadjuvant therapy—has improved complete response and downstaging rates compared to treatment after surgery in patients with rectal cancer. In a study presented by Chapman et al at the 2019...

colorectal cancer

2019 GI Cancers Symposium: Is Adjuvant HIPEC Effective in Reducing the Risk of Peritoneal Metastases in Patients With Colon Cancer?

Patients with advanced or perforated colon cancer may be at elevated risk of peritoneal metastases. Since many patients with peritoneal metastases are diagnosed at a late stage, researchers sought to study the effectiveness of hyperthermic intraperitoneal chemotherapy (HIPEC) in the adjuvant...

colorectal cancer
immunotherapy

2019 GI Cancers Symposium: Durvalumab, Tremelimumab, and Best Supportive Care vs Best Supportive Care Alone in Advanced, Refractory Colorectal Cancer

The phase II CCTG CO.26 trial evaluated whether the combination of durvalumab, a programmed cell death ligand 1 (PD-L1) inhibitor, and tremelimumab, an anti–cytotoxic T-lymphocyte–associated protein 4 (CTLA-4) antibody, plus best supportive care improved survival vs best supportive care ...

colorectal cancer
solid tumors
hematologic malignancies
pancreatic cancer
symptom management

FDA Pipeline: Designations for Treatments of Graft-vs-Host-Disease, Colorectal Cancer, Pancreatic Cancer, and More

The U.S. Food and Drug Administration (FDA) recently issued the following new designations and clearances: Fast Track Designation for Itolizumab for the Treatment of Acute Graft-vs-Host Disease The FDA granted Fast Track designation to itolizumab for the treatment of acute graft-vs-host ...

colorectal cancer
issues in oncology

2018 Young-Onset Colorectal Cancer Survey Report Covers Disease Stage at Diagnosis and More

Nearly three-quarters of patients with young-onset colorectal cancer are diagnosed with an advanced stage of the disease, a significantly higher percentage than has been reported for their more mature peers, according to a report from the Colorectal Cancer Alliance. The findings of...

colorectal cancer

Negative Colonoscopy and Long-Term Risk of Colorectal Cancer

Ten years after a negative colonoscopy, patients who were rescreened for colorectal cancer had a lower risk of being diagnosed with and were less likely to die from colorectal cancer compared with those who did not undergo colorectal cancer screening, according to a study published by Lee et al...

Colorectal Cancer

Postoperative Outcomes With Screening- vs Nonscreening-Detected Colorectal Cancers

In a Dutch study reported in JAMA Surgery, Michael P.M. de Neree tot Babberich, MD, of the Department of Gastroenterology and Hepatology, Academic Medical Center, Amsterdam, and colleagues found that postoperative outcomes were better in patients with colon cancer, but not rectal cancer, detected...

colorectal cancer
issues in oncology

Does Tailored Lifestyle Feedback Given During Colorectal Cancer Screening Improve Disease-Preventive Behaviors?

A program that provided individually tailored lifestyle recommendations for patients undergoing screening for colorectal cancer helped encourage healthy behavior, according to results published by Knudsen et al in Cancer Epidemiology, Biomarkers & Prevention. “It is well known that...

colorectal cancer
gynecologic cancer

CIMRA Assay for Detection of Gene Variants in Lynch Syndrome

An international team of researchers has developed, calibrated, and validated a novel tool for identifying the genetic changes in Lynch syndrome genes that are likely to be responsible for causing symptoms of the disease. The results were published by Drost et al in Genetics in Medicine. ...

colorectal cancer

Eicosapentaenoic Acid and Aspirin in Preventing Colorectal Adenomas

In a UK trial (seAFOod Polyp Prevention) reported in The Lancet by Hull et al, no differences in adenoma prevention were found after treatment with omega-3 polyunsaturated fatty acid eicosapentaenoic acid (EPA), aspirin, both, or placebo in patients with high-risk findings on colonoscopy. On the...

colorectal cancer
immunotherapy

Primary Resistance to Immune Checkpoint Inhibitors in Metastatic Colorectal Cancer and Misdiagnosis of MSI or dMMR Status

In a study reported in JAMA Oncology, Cohen et al found evidence that primary resistance to immune checkpoint inhibitor treatment in metastatic colorectal cancer (CRC) can be explained in some cases by misdiagnosis of microsatellite instability (MSI) or defective mismatch repair (dMMR) status....

Colorectal Cancer
Immunotherapy

Expert Point of View: Julien Taieb, MD

JULIEN TAIEB, MD, Professor of Medicine at Paris Descartes University in France, said the MODUL cohort was based on a clear rationale for adding atezolizumab (Tecentriq) to bevacizumab (Avastin) in the metastatic colorectal cancer setting. In immunodeficient mice, the combination of an...

Colorectal Cancer
Immunotherapy

No Benefit for Atezolizumab Plus Standard of Care for Maintenance in Colorectal Cancer Subset

ADDING ATEZOLIZUMAB (Tecentriq) to a fluoropyrimidine plus bevacizumab (Avastin) did not improve outcomes for patients with BRAF wild-type metastatic colorectal cancer enrolled in the umbrella MODUL trial.1 “Despite activity in other, immune-responsive tumor types, there was no improvement in...

colorectal cancer
issues in oncology

Many Patients Do Not Receive Surveillance Colonoscopies Following a Diagnosis of High-Risk Adenomas

A population-based study examining patient receipt of a surveillance colonoscopy 3 years after the removal of high-risk adeonomatous polyps has found that the procedure was underutilized and varied by health-care system, patient age, and number of adenomas found. Strategies to improve adherence to...

colorectal cancer

Multimodality Therapy and Lateral Local Recurrence in Rectal Cancer

In a study reported in the Journal of Clinical Oncology, Ogura et al found that lateral lymph node dissection (LLND) reduced the risk of lateral local recurrence in patients with lateral nodes ≥ 7 mm undergoing neoadjuvant chemoradiation or radiation and total mesorectal excision in clinical...

Gastrointestinal Cancer
Colorectal Cancer
Immunotherapy

First-Line Immunotherapy Shows Benefit in Metastatic Colorectal Cancer Subset

In previously untreated patients with metastatic colorectal cancer and tumors demonstrating microsatellite instability–high (MSI-high) or mismatch repair deficiency (dMMR), immunotherapy with nivolumab (Opdivo) and low-dose ipilimumab (Yervoy) produced a durable clinical benefit in the...

colorectal cancer

Sequential vs Combination Fluoropyrimidine, Irinotecan, and Bevacizumab in Metastatic Colorectal Cancer

In a German phase III noninferiority trial (XELAVIRI) reported by Modest et al in the Journal of Clinical Oncology, noninferiority of first-line sequential vs combination fluoropyrimidine, irinotecan, and bevacizumab (Avastin) was not demonstrated in metastatic colorectal cancer (CRC). Benefit of...

colorectal cancer

Pre- and Postdiagnosis Diet and Risk of Mortality in Colorectal Cancer

In a study reported in the Journal of Clinical Oncology, Guinter et al found that better prediagnosis and postdiagnosis dietary patterns were associated with improved overall and colorectal cancer­–specific survival among patients diagnosed with colorectal cancer. Study Details The...

Colorectal Cancer
Sarcoma

FDA Approves Levoleucovorin for Treatment in Osteosarcoma, Colorectal Cancer

The U.S. Food and Drug Administration (FDA) recently approved levoleucovorin (Khapzory) injection, a folate analog, for three indications: rescue after high-dose methotrexate therapy in patients with osteosarcoma; diminishing the toxicity associated with overdosing on folic acid antagonists or...

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