Clinical trials
Colorectal (Colon or Rectal) Cancer clinical trials
Below are recruiting colorectal (colon or rectal) cancer clinical trials, each written for real people, not researchers. We’re tracking 897 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05957016RecruitingPhase 2
New treatment before and during rectal radiation with chemo
This Phase 2 study tests a treatment plan given before surgery (neoadjuvant) along with radiation and chemotherapy (concurrent chemoradiotherapy) for locally advanced rectal cancer. It may help shrink the cancer before the next steps of care and improve control of the disease.
Chongqing, Chongqing MunicipalityAges 18–75 - NCT05964530Recruiting
Testing local removal versus radical surgery for rectal cancer
This trial looks at whether removing the rectal tumor locally (through the anus) can work as well as a more extensive operation after scans show no remaining cancer. It may help some people avoid bigger surgery if the cancer truly appears gone after treatment.
TaipeiAges 18–75 - NCT05965531RecruitingPhase 2
TAS-102 plus radiation before surgery for rectal cancer
This trial studies whether adding TAS-102 (a chemotherapy medicine) to radiation given before treatment improves outcomes for certain locally advanced rectal cancers. It may help by trying to shrink the tumor before the next steps of care.
Guangzhou, GuangdongAges 18–70 - NCT05984485RecruitingPhase 3
Surgery vs chemo before surgery for low-risk rectal cancer
This trial compares two approaches for low-risk locally advanced rectal cancer: going straight to surgery (TME) versus receiving chemotherapy before surgery. The goal is to see if upfront surgery works just as well, sparing patients from chemotherapy side effects.
Chongqing, Chongqing MunicipalityAges 18–75 - NCT06043999Recruiting
Chemotherapy vs. surgery for high-risk rectal cancer after local removal
This trial compares standard chemotherapy to more extensive surgery (total mesorectal excision) for patients whose initial local surgery showed high-risk features like poor differentiation, lymphovascular invasion, or larger tumor size. It aims to find the best treatment to prevent cancer from coming back.
Guangzhou, GuangdongAges 18–75 - NCT06052332Recruiting
Comparing two pre-surgery treatments for older adults with rectal cancer
This study compares two approaches to treating rectal cancer in people age 70 and older who have not yet had surgery. One approach gives chemotherapy and radiation before surgery, and the other adds more chemotherapy after radiation. The goal is to find which plan works better with fewer side effects.
Antwerp, AntwerpenAges 70 years+ - NCT06107920RecruitingPhase 3
Chemotherapy before surgery for blocked colon cancer
This trial tests whether giving chemotherapy before surgery helps people with colon cancer that caused a blockage and needed a temporary colostomy. It aims to improve outcomes compared to standard treatment.
AmiensAges 18 years+ - NCT06123156RecruitingPhase 3
Early erectile rehabilitation after rectal cancer treatment
This trial tests if sildenafil (Viagra) given soon after surgery and radiation for rectal cancer can help preserve erectile function. It is for men with normal erectile function before treatment who have a regular partner.
AmiensAges 18–70 - NCT06134388RecruitingPhase 3
Sulfasalazine for metastatic colorectal cancer
This trial tests whether adding the drug sulfasalazine to standard chemotherapy can help people with metastatic colorectal cancer live longer. It is for patients whose cancer has spread and who are healthy enough for chemotherapy.
Tanta, El-Gharbia GovernorateAges 18–65 - NCT06162650RecruitingPhase 2
Pre-surgery chemo-radiation therapy for rectal cancer
This trial tests a combination of chemotherapy and radiation therapy before surgery for people with mid or low rectal cancer that hasn't spread. The goal is to see if this approach works better than current treatments.
TainanAges 20 years+ - NCT06176885RecruitingPhase 2
Immunotherapy plus chemo and targeted therapy for MSS colorectal cancer
This trial tests adding immunotherapy to standard chemotherapy and targeted therapy for people with metastatic colorectal cancer that is MSS (microsatellite stable) and cannot be removed with surgery. It aims to see if this combination helps shrink tumors and improve outcomes.
Jinhua, ZhejiangAges 18–75 - NCT06184698RecruitingPhase 2
Liposomal irinotecan, chemotherapy, and bevacizumab for advanced colorectal cancer
This trial tests a combination of liposomal irinotecan, two chemotherapy drugs (leucovorin and 5-fluorouracil), and bevacizumab as a second-line treatment for people with colorectal cancer that has spread and cannot be removed by surgery.
Shijiazhuang, HebeiAges 18–75 - NCT06194708Recruiting
Why some temporary stomas are never reversed after rectal cancer surgery
This trial looks at why some people who had a temporary stoma (a bag for waste) after rectal cancer surgery never get it reversed. It collects information from medical records to find patterns that might explain this.
Beijing, Beijing MunicipalityAges 18–100 - NCT06204094RecruitingPhase 2
Preserving the anus with chemo, immunotherapy, and radiation for rectal cancer
This trial tests a treatment plan that combines chemotherapy, immunotherapy, and radiation before surgery for patients with middle or low rectal cancer. The goal is to shrink the tumor enough to avoid removing the anus, preserving bowel function.
Jinhua, ZhejiangAges 18–75 - NCT06214988Recruiting
Temporary stoma or not for rectal cancer surgery
This trial tests whether a temporary stoma (a bag on the belly) can be safely avoided in some people having rectal cancer surgery. The goal is to see if it's okay to skip the stoma in those with a low risk of complications.
MalmöAges 18 years+ - NCT06222255Recruiting
Transanal irrigation for sleep issues after rectal cancer surgery
This trial tests if a special irrigation technique can improve sleep problems caused by low anterior resection syndrome (LARS) after rectal cancer surgery. It may help people who have ongoing bowel symptoms that disrupt sleep.
Seoul, Jongro-guAges 19–80 - NCT06225843RecruitingPhase 2
Testing a new drug combo before liver surgery for colorectal cancer
This trial is for people with colorectal cancer that has spread to the liver. It tests whether adding a new drug (sotevtamab) to standard chemotherapy (FOLFOX) before surgery can help shrink tumors and improve outcomes.
Montreal, QuebecAges 18 years+ - NCT06234007RecruitingPhase 2
Short radiation plus combo therapy for advanced rectal cancer
This trial tests a short course of radiation therapy followed by a combination of three drugs (fruquintinib, adebrelimab, and CAPOX chemotherapy) before surgery for people with locally advanced rectal cancer. The goal is to see if this approach can shrink the tumor and improve outcomes.
WuhanAges 18–75 - NCT06242067RecruitingPhase 2
Second-line treatment for advanced colorectal cancer
This trial tests a new treatment for people with advanced colorectal cancer that has spread or come back after initial chemotherapy. It is for those who have already received standard first-line therapy and are now looking for a second treatment option.
Jinan, ShandongAges 18–75 - NCT06245356RecruitingPhase 2
A safety trial of trifluridine/tipiracil for DPD-deficient patients
This trial tests a chemotherapy drug (trifluridine/tipiracil) in people with metastatic colorectal or gastroesophageal cancer who have a DPD deficiency. DPD deficiency means your body may have trouble breaking down certain chemotherapy drugs, which can lead to serious side effects. This study aims to see if this drug is safe and effective for you.
AmiensAges 18 years+ - NCT06249672Recruiting
Long-term outcomes after rectal preservation for rectal cancer
This study looks at how well people with rectal cancer do over time when they try to keep their rectum instead of having surgery. It is for patients who have already had chemoradiation and whose tumor has shrunk to a small scar (2 cm or less).
BernAges 18 years+ - NCT06274190Recruiting
Better bowel symptom tracking after rectal cancer treatment
This study develops an electronic diary to help track and manage bowel symptoms after rectal cancer surgery or active surveillance. It aims to create personalized care plans to improve your quality of life.
Leuven, Vlaams-BrabantAges 18 years+ - NCT06302751Recruiting
Mobile app to improve recovery after colorectal cancer surgery
This trial tests whether a mobile app can help people recover better after colorectal cancer surgery. If you join, you'll use the app to track your recovery and get support, which may improve your overall outcome.
Rozzano, MIAges 18 years+ - NCT06314646Recruiting
Comparing two ways to reconnect the intestine after rectal cancer surgery
This study compares two ways of reconnecting the intestine after rectal cancer surgery. It looks at a newer method called TTSS against the standard double-stapled technique.
Rozzano, MIAges 18 years+
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Common questions
- Are there clinical trials for colorectal (colon or rectal) cancer?
- Yes. Clin2 currently lists 897 recruiting colorectal (colon or rectal) cancer studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a colorectal (colon or rectal) cancer trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a colorectal (colon or rectal) cancer trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.