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Metastatic colorectal cancer is more advanced in younger patients than older ones, but they survive longer with the disease, study finds

A retrospective cohort study of 50,802 patients with metastatic colorectal cancer found that younger patients (aged 45 and younger) had longer median disease-specific survival and a higher rate of 10-year survival compared to older patients. Younger patients were also more likely to have tumors in the left-sided colon and rectum, and a...

‘Invisible’ inflammation in rare bowel disease may explain heightened colon cancer risk

Researchers have mapped cellular differences between two similar bowel diseases, identifying hidden immune activity that may explain why one carries a much higher risk of colon cancer. The study found that patients with PSC-associated IBD had a distinct microbiome and higher levels of immune activity even in the absence of inflammation.

SourceGarvan Institute of Medical Research·JournalNature Communications·TypeObservational study·DateSep 21, 2026

Loss of Y chromosome in men could be early warning sign of cancer

Researchers found that the loss of the Y chromosome in healthy-seeming tissue can serve as an early indicator of cancer development. The study analyzed 1,000 tissue samples from 405 men and discovered that Y chromosome loss increased in normal tissue adjacent to tumors, particularly in organs like the colon, rectum, and esophagus.

SourceUniversity of Arizona·JournalJCI Insight·TypeRandomized controlled/clinical trial·DateSep 18, 2026

Cellular recycling protein plays critical protective role in the gut

Researchers at Olivia Newton-John Cancer Research Institute discovered that reduced BECLIN1 levels weaken the gut's protective barrier, leading to increased susceptibility to inflammation and disease. This finding may help explain why some people are more susceptible to gut inflammation and associated diseases.

SourceOlivia Newton-John Cancer Research Institute·JournalCell Death and Disease·TypeExperimental study·DateJul 12, 2026

Weight loss treatments linked to lower risk of obesity-related cancers in people without diabetes

A study of over 229,000 obese adults without diabetes found that weight loss drugs, such as semaglutide and tirzepatide, were associated with a 41% decrease in the overall risk of developing obesity-related cancers. GLP-1 RAs also showed larger reductions in certain subgroups, including men and gynaecologic cancers.

SourceEuropean Society for Medical Oncology·JournalAnnals of Oncology·TypeObservational study·DateJun 7, 2026

Blood test improves treatment decisions for colon cancer: Dresden study on circulating tumor DNA shows clear benefits

A recent study published in Science Direct found that patients with detectable circulating tumor DNA (ctDNA) benefit from chemotherapy, with a three-year relapse-free survival rate of 77 percent. The test can help identify patients who require more targeted treatment, potentially reducing the risk of recurrence.

SourceTechnische Universität Dresden·JournalAnnals of Oncology·DateJun 2, 2026

Decoding Inflammatory Bowel Disease – on a chip

A new study replicated patient- and sex-specific hallmarks of Inflammatory Bowel Disease (IBD) in a human organ chip, identifying stromal fibroblasts as key drivers of inflammation, fibrosis, and enhanced cancer risk. The model also recapitulated the impact of pregnancy hormones on IBD severity in female patients.

SourceWyss Institute for Biologically Inspired Engineering at Harvard·JournalNature Biomedical Engineering·TypeExperimental study·DateMay 21, 2026

Lower volume bowel preparation as effective and safe as higher volume regimen for inpatient colonoscopy

A randomized controlled trial found that a 1 L PEG-ascorbate regimen provided effective and high-quality bowel cleansing, while being associated with a greater willingness to repeat the regimen compared to 2 L and 4 L PEG regimens. The findings support adopting a low-volume regimen to improve completion rates and patient tolerability.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeNews article·DateMay 4, 2026

Immunotherapy boosts chemotherapy in combating stage 3 colon cancer

Researchers at Mayo Clinic found that adding immunotherapy to chemotherapy after surgery for patients with stage 3 (node-positive) colon cancer reduced cancer recurrence and mortality by 50% compared to chemotherapy alone. The study used an immune checkpoint inhibitor, atezolizumab, to reactivate a person's anti-tumor immunity.

SourceMayo Clinic·JournalNew England Journal of Medicine·DateMar 26, 2026

“Bugs delivering drugs” – researchers publish new approach to colorectal cancer treatment using common food-borne bacteria

Researchers have developed a novel approach to fight colorectal cancer using modified Listeria bacteria as a courier to deliver potent cancer-killing proteins into tumor cells. This method has shown significant anti-tumor activity and could potentially lead to the development of a safe and effective oral treatment.

SourceBaylor University·JournalCell Chemical Biology·TypeExperimental study·DateMar 9, 2026

Rural cancer patients do just as well when having surgery close to home

A new analysis found that rural cancer patients treated locally have similar surgical outcomes to those who traveled to urban facilities. The study used Surveillance, Epidemiology, and End Results data from Medicare-eligible patients with lung or colon cancer, aged 65 or older, residing in rural areas.

SourceAmerican College of Surgeons·JournalJournal of the American College of Surgeons·TypeData/statistical analysis·DateFeb 11, 2026

Research paves the way for safer colonoscopy bowel prep for people with compromised gut health

A new study found that bowel preparation procedures for colonoscopies can disrupt the gut environment, making mice more susceptible to infection and inflammation. The researchers hope to understand whether these procedures may put people with inflammatory bowel disease (IBD) at risk of exacerbation.

SourceUniversity of British Columbia·JournalCell Reports Medicine·TypeObservational study·DateJan 8, 2026

Colorectal cancer screenings remain low for people ages 45 to 49 despite guideline change

Researchers found that fewer than 1 in 4 eligible younger adults completed colorectal cancer screenings after the USPSTF lowered the recommended screening age to 45. Despite investigating unmet social needs, no significant differences were found in testing uptake for this early midlife cohort.

SourceUniversity of California - Los Angeles Health Sciences·JournalJNCI Journal of the National Cancer Institute·TypeData/statistical analysis·DateNov 18, 2025

Colon cancer DNA detectable in blood can guide chemo decisions: study

A blood test detecting tiny fragments of cancer DNA can help tailor chemotherapy to individual patients with stage 3 colon cancer. The DYNAMIC-III study found that patients with low-risk levels had an 87% cancer-free rate three years after surgery, while those with high-risk levels had a much higher risk of recurrence.

SourceWalter and Eliza Hall Institute·JournalNature Medicine·TypeRandomized controlled/clinical trial·DateOct 23, 2025

Singapore scientists identify markers of key stem cell populations driving colorectal cancer formation

Researchers from A*STAR Institute of Molecular and Cell Biology have identified two critical stem cell populations that drive colorectal cancer formation in different colon regions. The study reveals how NOX1 and NPY1R proteins mark distinct stem cell populations, providing new targets and models for developing region-specific cancer t...

Chinese Medical Journal review highlights neoadjuvant therapy’s promise in advanced colon cancer treatment

Recent clinical trials demonstrate the potential benefits of neoadjuvant chemotherapy and immunotherapy in improving tumor response and surgical success for patients with locally advanced colon cancer. The approach also reduces the risk of recurrence and metastasis, increasing survival outcomes and decreasing cancer-related complications.

SourceChinese Medical Journals Publishing House Co., Ltd.·JournalChinese Medical Journal·TypeLiterature review·DateSep 19, 2025

Expanding the use of minimally invasive surgery in rural areas may help reduce rural-urban disparities

Researchers analyzed data from 33,183 individuals and found that minimally invasive approach was associated with lower complication risks compared to open surgery. This study suggests that expanded use of minimally invasive surgery in rural areas may help bridge the gap between rural and urban patients with colon cancer.

SourceAmerican College of Surgeons·JournalJournal of the American College of Surgeons·DateSep 10, 2025