Heinz-Josef Lenz, MD, on MSI-H/dMMR Metastatic Colorectal Cancer: Expanded Analyses From CheckMate 8HW
Heinz-Josef Lenz, MD, of the University of Southern California Norris Comprehensive Cancer Center, reviews analyses from the CheckMate 8HW trial, which evaluated nivolumab plus ipilimumab vs chemotherapy or nivolumab monotherapy for microsatellite instability–high/mismatch repair–deficient (MSI-H/dMMR) metastatic colorectal cancer (Abstract 3501).
ASCO 2025: Structured Exercise Program Improves Survival, Outcomes in Some Patients With Colon Cancer
A phase III study has found that a 3-year structured exercise program initiated soon after completion of adjuvant chemotherapy improves disease-free and overall survival, as well as patient-reported physical functioning and health-related fitness, in patients with stage III and high-risk stage II...
ASCO 2025: Adding Atezolizumab to Adjuvant Chemotherapy Improves Disease-Free Survival in dMMR Colon Cancer
Results from the international phase III ATOMIC study demonstrated that patients with deficient mismatch repair (dMMR) colon cancer who receive atezolizumab in addition to adjuvant chemotherapy experience a 50% reduction in disease recurrence or death compared with chemotherapy alone. The findings...
Christopher M. Booth, MD, on a Structured Exercise Program for Patients With Colon Cancer
Christopher M. Booth, MD, of Queen’s University, reviews findings from the randomized phase III Canadian Cancer Trials Group (CCTG) CO.21 (CHALLENGE) trial, which evaluated the impact of a structured exercise program on disease-free survival in patients with stage III or high-risk stage II colon cancer (Abstract LBA3510).
Encorafenib/Cetuximab Plus Chemotherapy Improves Survival in BRAF V600E–Mutant Metastatic Colorectal Cancer
Results from an international phase III study showed that the targeted therapy combination of encorafenib and cetuximab with mFOLFOX6 (leucovorin, fluorouracil, and oxaliplatin) chemotherapy may help patients with BRAF V600E–mutant metastatic colorectal cancer live longer. After early results from...
Online Genetic Testing Platform Demonstrates Notable Engagement Among Patients With Young-Onset Colorectal Cancer
Universal germline testing is essential for identifying hereditary cancer risk, especially for patients with young-onset colorectal cancer who were diagnosed before the age of 50. However, the implementation of universal germline testing has been hampered by increasing demand and limited physician...
DOJ Finds Federal Bureau of Prisons’ Colorectal Cancer Screening Practices Lacking
An evaluation by the Department of Justice Office of the Inspector General (DOJ OIG) of the Federal Bureau of Prisons’ (BOP) colorectal cancer screening practices for inmates and their clinical follow-up for positive screenings found several serious operational and managerial deficiencies...
Reduced-Dose Chemoradiotherapy for Early-Stage Anal Cancer
In a UK phase II trial (PLATO-ACT4) reported in The Lancet Oncology, Gilbert et al evaluated whether short-term results showed good complete response rates with both standard-dose and reduced-dose chemoradiotherapy in patients with localized squamous cell carcinoma of the anus. Study Details In the ...
Neoadjuvant Therapy for IBD-Related Rectal Cancer
Total neoadjuvant therapy of intensified chemoradiotherapy was shown to be less effective for treating patients with rectal cancer with inflammatory bowel disease (IBD) than those with sporadic rectal cancer, according to study findings presented during Digestive Disease Week 2025. However, there...
Retifanlimab-dlwr Approved for Anal Cancer
On May 15, the U.S. Food and Drug Administration (FDA) approved retifanlimab-dlwr (Zynyz), a PD-1–blocking monoclonal antibody, with carboplatin and paclitaxel for the first-line treatment of adults with inoperable locally recurrent or metastatic squamous cell carcinoma of the anal canal (SCAC)....
Circulating Tumor DNA–Guided Risk Stratification in Colorectal Cancer: Evolving Evidence and Future Utility
Circulating tumor DNA (ctDNA) has emerged as a promising biomarker in colorectal cancer, offering dynamic insight into disease burden and recurrence risk. However, questions remain about its clinical utility and optimal application, as well as its equitable access across practice settings. At the...
NCCN Clinical Practice Guidelines in Oncology: 2025 Updates
The National Comprehensive Cancer Network (NCCN) released its first set of Clinical Practice Guidelines in Oncology (NCCN Guidelines®) in 1996, covering eight tumor types. Today, guidelines are available for more than 60 tumor types, subtypes, and related topics. During the NCCN’s 30th Annual...
In Case You Missed It: Additional Abstracts of Interest From AACR
Thousands of forward-looking research studies defined the 2025 American Association for Cancer Research (AACR) Annual Meeting. Here, aside from our fuller coverage of key presentations in The ASCO Post, we offer a snapshot of a few additional abstracts that may be of interest to cancer researchers...
HIV-Related Structural Barriers in Cancer Care
Patients with human immunodeficiency virus (HIV) are less likely to receive potentially life-saving cancer treatment if they reside in communities with lower income levels and educational attainment, according to a recent study published by Islam et al in Cancer. Study Methods and Results...
Five Major Advances in Radiotherapy for Anal and Rectal Cancer Presented at ESTRO 2025
Five pivotal studies presented at ESTRO 2025 showcase how radiotherapy is reshaping the landscape for anal and rectal cancers. From reduced-dose treatments to cutting-edge combinations with immunotherapy and chemotherapy, these innovations offer safer, more effective, and organ-preserving...
Cancer Briefs From Digestive Disease Week 2025
Cancer-related studies were among the nearly 6,000 abstracts presented at Digestive Disease Week® (DDW) 2025, including research on artificial intelligence (AI) in patient communication, polyp detection, and colonoscopy prep. Use of AI in Patient Communication AI outperformed physicians in...
Cannabis Use Disorder Significantly Increases Mortality Risk in Colorectal Cancer
Patients with colorectal cancer and a history of cannabis use disorder had a more than 20 times higher risk of mortality within 5 years than those without cannabis use order, according to the results of a study published in Annals of Epidemiology. The 5-year mortality rate in patients with a...
DDW 2025: 20-Year Screening Program Drives Down Colorectal Cancer Cases, Deaths
A 20-year initiative that offered flexible options for colorectal cancer screening at a major integrated health system doubled colorectal cancer screening rates, cut cancer incidence by a third, halved deaths, and brought racial differences in outcomes to nearly zero, according to a study that will ...
AACR 2025: AI-Driven Model For Identifying Cancer Cachexia
Use of a multimodal deep learning–based model led to more accurate and earlier identifications of cancer cachexia than standard clinical and radiological observations, according to findings presented at the 2025 American Association for Cancer Research (AACR) Annual Meeting (Abstract 1143)....
AACR 2025: Use of ctDNA-Based Liquid Biopsy Assay in Resectable Colorectal Cancer
Interim results from the VICTORI study showed that an ultrasensitive circulating tumor DNA (ctDNA)-based liquid biopsy assay was effective in detecting signs of cancer recurrence prior to imaging and provided prognostic value within 1 month after surgery in patients with colorectal cancer. The...
Childhood Exposure to Bacterial Toxin May Trigger Early-Onset Colorectal Cancer
Researchers may have identified the bacterial toxin colibactin as a potential factor contributing to the concerning rise in early-onset colorectal cancer, according to a novel study published by Díaz-Gay et al in Nature. The findings demonstrated a substantial enrichment of colibactin-related...
Benefits of Walnut Consumption: Curbing Inflammation, Colorectal Cancer Risk
Researchers have uncovered that eating walnuts may improve systemic inflammation and reduce the risk for colorectal cancer, according to a recent study published by Moussa et al in Cancer Prevention Research. Background Ellagitannins—plant-derived polyphenol compounds found in walnuts—have been...
Incidence Rates of Colorectal and Pancreatic Cancers Are Rising Most Among Young Adults
The incidence rates of colorectal and pancreatic adenocarcinomas have risen the most among young adults over the past 2 decades, suggesting the need for heightened awareness among clinicians for these diseases in this patient population, according to a report published by Bussetty et al in JAMA...
FDA Approves Bevacizumab Biosimilar
The U.S. Food and Drug Administration (FDA) has approved bevacizumab-nwgd (Jobevne), a biosimilar to bevacizumab (Avastin), for intravenous use. Bevacizumab-nwgd is a recombinant humanized monoclonal antibody and a vascular endothelial growth factor (VEGF) inhibitor that binds with VEGF and blocks...
Invitation to Colonoscopy vs Fecal Immunochemical Test Screening for Colorectal Cancer
In a Spanish study (COLONPREV) reported in The Lancet, Castells et al found that invitation to fecal immunochemical test (FIT) vs colonoscopy screening for colorectal cancer was associated with noninferiority in colorectal cancer mortality. Study Details In the multicenter study, eligible...
FDA Approves Nivolumab With Ipilimumab for Unresectable or Metastatic MSI-H/dMMR Colorectal Cancer
On April 8, the U.S. Food and Drug Administration (FDA) approved the PD-1 inhibitor nivolumab (Opdivo) with the CTLA-4 inhibitor ipilimumab (Yervoy) for adult and pediatric patients aged 12 years and older with unresectable or metastatic microsatellite instability–high (MSI-H) or mismatch...
Patterns of ICI Use and Survival Outcomes in Metastatic Colorectal Cancer
In a U.S. population–based cohort study reported in JAMA Network Open, Bari et al identified patterns of immune checkpoint inhibitor (ICI) use and survival outcomes among patients with metastatic colorectal cancer seen in routine clinical practice. The investigators stated: “…ICIs have been...
Rates of Breast, CRC Screenings Almost Four Times Higher Than Lung Cancer Screenings
Many patients who are eligible for lung cancer screening do not receive it, but do receive preventative screenings for other cancer types, according to the results of a new study published by Potter et al in JAMA. Background Although lung cancer screening is recommended for certain individuals...
Awareness of Alcohol-Related Cancer Risks May Be Growing
An increasing proportion of the U.S. public may be aware of the link between consuming alcohol and the elevated risk of later developing cancer, according to a recent survey conducted by the University of Pennsylvania’s Annenberg Public Policy Center (APPC). Background On January 3, 2025, Vivek...
Local Excision May Be Feasible in Patients With Low Rectal Adenocarcinoma
Chemotherapy followed by local excision may be effective in patients with node-negative low rectal adenocarcinoma, according to new findings presented by Buettner et al at the 2025 Society of Surgical Oncology (SSO) Annual Meeting. Background The current standard of care among most patients with...
Exploring Impact of the COVID-19 Pandemic on Colorectal Cancer Screening, Diagnosis
Two recent studies have elucidated the effects of the COVID-19 pandemic on colorectal cancer screenings and diagnostic colonoscopies in Central Indiana. The findings—reported by Kumar et al in PLOS One and Richter et al in Preventive Medicine Reports—contribute to the compendium of knowledge on...
Daily Physical Activity—Even at Light Intensities—May Reduce Cancer Risk
Investigators found that individuals who engaged in light- and moderate-to-vigorous–intensity physical activity daily had a lower risk of developing cancer compared with those who were more sedentary, according to a recent study published by Shreves et al in the British Journal of Sports Medicine....
Interventions to Improve Uptake of FIT Colorectal Cancer Screening in Scotland
In a Scottish study (TEMPO) reported in The Lancet, Robb et al found that a behavioral intervention adding a deadline for fecal immunochemical testing (FIT) return in the invitation letter to FIT colorectal cancer screening resulted in superior uptake of testing. Study Details In the trial, 40,000...
Colorectal Cancer May Be Linked to Heightened Risk of Cardiovascular Mortality
The risk of death from cardiovascular causes may be higher among patients diagnosed with colorectal cancer compared with the general population, according to new findings presented by Ayaz et al at the American College of Cardiology (ACC) Annual Scientific Session 2025. Background Cardiovascular...
In Case You Missed It: Abstracts on Novel Therapies in Gastrointestinal Cancers
The 2025 ASCO Gastrointestinal Cancers Symposium once again delivered a slate of high-impact studies spanning esophageal, gastric, hepatocellular, pancreatic, biliary tract, and colorectal malignancies. Experts in the field offered fresh perspectives on evolving standards of care, and investigators ...
Liquid Biopsies Could Help Guide Colorectal Cancer Treatment
The use of a circulating tumor DNA (ctDNA) liquid biopsy to guide colorectal cancer treatment in the adjuvant setting may not compromise outcomes despite allowing many patients to avoid chemotherapy, according to a recent study published by Tie et al in Nature Medicine. Background A liquid biopsy...
Overcoming Resistance to KRAS G12C Inhibitors in Pancreatic and Colorectal Cancers
A study evaluating the genetic landscape of candidate primary resistance alterations relevant to KRAS targeting in KRAS G12C–mutant colorectal cancers and pancreatic ductal adenocarcinomas (PDAC) has found that putative resistance alterations are prevalent in these cancers. The finding may explain...
MSTFCRC Updates Recommendations for Colonoscopy Preparation
Updated consensus recommendations from the U.S. Multi-Society Task Force on Colorectal Cancer (MSTFCRC) address optimizing the quality of bowel preparation for colonoscopy. The document, published today by Jacobson et al, presents clinical strategies to improve bowel preparation as they apply...
Novel Prediction Score May Estimate Risk of Early-Onset Colorectal Cancer, Precancerous Polyps
Researchers have developed and validated a novel prediction model that may be capable of estimating the risk of colorectal cancer and advanced precancerous polyps in patients younger than 45 years, according to a recent study published by Wehbe et al in Digestive Diseases and Sciences. Background...
Decoding Varying Risk of Colorectal Cancer Among Different Steatotic Liver Disease Subgroups
Investigators have found that the risk of colorectal cancer may vary among steatotic liver disease subgroups and could be higher in patients with alcoholic liver disease, according to a recent study published by Kimura et al in Clinical Gastroenterology and Hepatology. Background Lifestyle-related...
Physical Activity May Help Colorectal Cancer Survivors Live as Long as Those in General Population
Physical activity may help colorectal cancer survivors achieve long-term survival rates comparable to those of individuals in the general population, according to a recent study published by Brown et al in Cancer. Background Patients with colorectal cancer often face higher rates of premature...
Adding Tumor Deposit Status to Cancer Staging May Improve Prognostication in Colorectal Cancer
Investigators assessed whether adding tumor deposit status to colorectal cancer staging may enhance prognostication, according to a recent study published by Sassun et al in JAMA Surgery. Background In patients undergoing surgical treatment of colorectal cancer, tumor deposits are defined as...
Colorectal Cancer Treatment Resistance: Oncofetal Reprogramming
Researchers may have uncovered a major factor contributing to treatment resistance in patients with colorectal cancer, according to a recent study published by Mzoughi et al in Nature Genetics. Background Colorectal cancer is one of the deadliest cancer types across the world, with treatment...
ctDNA and Immunoscore in Resected Stage III Colon Cancer
As reported in the Journal of Clinical Oncology by Taieb et al, a combined analysis of two phase III adjuvant trials (IDEA-France and IDEA-Greece) in stage III colon cancer showed that the presence of circulating tumor DNA (ctDNA) after surgery was prognostic for poorer outcomes and that...
Potential Benefit of Consuming Yogurt in Decreasing the Risk of Certain Types of Colorectal Cancers
Long-term yogurt intake may protect against the development of colorectal cancer through changes in the gut microbiome, according to a recent study published by Ugai et al in Gut Microbes. Background Yogurt—which contains live strains of bacteria—is thought to protect against many types of...
Baseline Liquid Biopsy vs Tissue-Based Findings in Metastatic Colorectal Cancer
In an analysis reported in the Journal of Clinical Oncology, Stintzing et al found that baseline liquid biopsies identified RAS and BRAF mutations in patients with metastatic colorectal cancer considered RAS wild-type on the basis of tissue analyses. Study Details The study included patients from...
Triplet Regimen Demonstrates Benefit in BRAF V600E–Mutant Metastatic Colorectal Cancer
The BRAF inhibitor encorafenib plus the monoclonal antibody cetuximab combined with mFOLFOX (modified folinic acid, fluorouracil, and oxaliplatin) significantly improved overall response in BRAF V600E–mutant metastatic colorectal cancer, according to data presented at the 2025 ASCO Gastrointestinal ...
New Blood-Based Screening Test Accurately Detects Colorectal Cancer Risk in Adults Aged 45 and Older
Colorectal cancer (CRC) is the second most common cause of cancer-related deaths in the United States. This year, it’s expected that more than 53,000 individuals will die of the disease.1 Although screening for colorectal cancer through colonoscopy or sigmoidoscopy is effective in detecting the...
Experimental Regimen Demonstrates Benefit in BRAF V600E–Mutant Metastatic Colorectal Cancer
The BRAF inhibitor encorafenib plus the monoclonal antibody cetuximab combined with mFOLFOX (modified folinic acid, fluorouracil, and oxaliplatin) significantly improved overall response in BRAF V600E–mutant metastatic colorectal cancer, according to data presented at the 2025 ASCO Gastrointestinal ...
Dual Immunotherapy Extended Progression-Free Survival in Metastatic Colorectal Cancer Subgroup
An immunotherapy combination for advanced, highly mutated colorectal cancer has significantly delayed disease progression vs single-agent therapy, according to data presented at the 2025 ASCO Gastrointestinal Cancers Symposium.1 The phase III CheckMate 8HW trial compared the PD-1 inhibitor...
