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
- NCT07542262Enrolling by invitationPhase 2
Low-dose immunotherapy for advanced colorectal and stomach cancer
This study tests a lower dose of immunotherapy in patients with colorectal or stomach cancer that has spread or cannot be removed by surgery. The cancer must have a specific genetic feature (MSI/dMMR). The goal is to see if this approach works well with fewer side effects.
MoscowAges 18 years+ - NCT06693375RecruitingPhase 2
Testing a new imaging agent for rectal cancer lymph nodes
This trial tests a new nanoparticle-based imaging agent to better see lymph nodes near the rectum. It first checks healthy volunteers for safety, then studies people with rectal cancer to see if it can help guide surgery.
UppsalaAges 18–99 - NCT07292298RecruitingPhase 2
Rectal cancer brachytherapy after treatment to avoid surgery
This trial tests a special type of internal radiation (brachytherapy) for people with low-lying rectal cancer that did not fully go away after standard chemoradiation and chemotherapy. The goal is to shrink the remaining tumor enough to avoid major surgery like removing the rectum or colostomy.
Aurora, ColoradoAges 18–100 - NCT06225011RecruitingPhase 1
Can a common antidepressant help your immune system fight colorectal cancer before surgery?
This trial is testing whether a common antidepressant called fluoxetine (Prozac) can help your immune system fight colorectal cancer before surgery. It's for people with early-stage colorectal cancer who have not yet had treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT07686640RecruitingPhase 3
Short course radiation plus chemo with or without immunotherapy for rectal cancer
This trial tests whether adding two immunotherapy drugs (iparomlimab and tuvonralimab) to standard short-course radiation and chemotherapy improves outcomes in people with a common type of locally advanced rectal cancer (pMMR/MSS). It is for those with stage II or III cancer that has at least one high-risk feature and is within 12 cm of the anal verge.
Jinan, ShandongAges 18–75 - NCT07162714RecruitingPhase 2
Short-course radiation plus AK112 for mismatch repair-proficient rectal cancer
This trial tests a new immunotherapy drug (AK112) given after a short course of radiation. It is for people with a specific type of mid-low rectal cancer that has not spread and has not been treated before.
Hangzhou, ZhejiangAges 18–75 - NCT06894797Recruiting
Chemo and radiation before and after surgery for rectal cancer
This study tests a sequence of chemotherapy and radiation before and after surgery for rectal cancer. It compares giving more chemo between the end of radiation and surgery (consolidation) versus giving some chemo before radiation starts (induction). The goal is to see which order works better.
BeijingAges 18–75 - NCT07281157RecruitingPhase 2
Liposomal irinotecan, capecitabine and enlonstobart with short radiation for rectal cancer
This trial tests a combination of short-course radiation, two chemotherapy drugs (liposomal irinotecan and capecitabine), and an immunotherapy drug (Enlonstobart) for people with locally advanced rectal cancer. The goal is to see if this approach can shrink the tumor before surgery.
Tianjin, Tianjin MunicipalityAges 18–75 - NCT06369259RecruitingPhase 2
Study of avutometinib, defactinib, and cetuximab for advanced colorectal cancer
This trial tests a combination of three drugs for people with advanced colorectal cancer that has not responded to standard treatments. The goal is to see if combining these drugs can shrink tumors or slow cancer growth.
Houston, TexasAges 18 years+ - NCT06787183RecruitingPhase 2
Short-course radiation with chemoimmunotherapy for rectal cancer that has spread to the liver
This trial tests whether combining short-course radiation with a chemotherapy regimen (CAPOX) and an immunotherapy drug (QL1706) can help treat rectal cancer that has spread to the liver. It is designed for patients who have not had any prior cancer treatment.
Fuzhou, FujianAges 18–75 - NCT07269249Recruiting
Dostarlimab before surgery for advanced rectal cancer
This study looks at how well the immunotherapy drug dostarlimab works before surgery in patients with a specific type of advanced rectal cancer that has DNA repair problems (called dMMR/MSI-H). The goal is to see if it is safe and effective in the real world.
NaplesAges 18 years+ - NCT06338332Recruiting
Stent before surgery for right-sided colon blockage from cancer
This trial tests whether placing a stent first to relieve a blockage in the right side of the colon improves outcomes before surgery for colon cancer. It aims to help patients who come to the hospital with a blocked colon due to cancer.
Breda, North BrabantAges 18 years+ - NCT07040098RecruitingPhase 2
Optimizing immunotherapy with chemo-radiation for rectal cancer
This trial tests combining immunotherapy with standard chemotherapy and radiation before surgery for locally advanced rectal cancer. It aims to see if this approach can improve outcomes for patients whose tumors have certain genetic features (pMMR or MSS).
BeijingAges 18–75 - NCT04098471Recruiting
Comparing two rectal cancer surgeries for T2 tumors
This trial compares two different surgery approaches for early-stage rectal cancer (T2N0M0) that is close to the anus. It tests whether a less invasive local removal followed by radiation works as well as more extensive surgery (total mesorectal excision).
Nanjing, JiangsuAges 18–75 - NCT07104604RecruitingPhase 2
New combo before surgery for low rectal cancer
This trial tests a new combination of treatments (radiation, immunotherapy, and two chemotherapy drugs) given before surgery for people with a specific type of locally advanced rectal cancer that is close to the anus. The goal is to see if this approach is safe and effective.
Shantou, GuangdongAges 18–75 - NCT03874026RecruitingPhase 2
Folfiri plus cetuximab for advanced, gene-matched colon cancer
This trial tests whether a combination chemotherapy (Folfiri) plus cetuximab works better for people with stage IV colorectal cancer that has specific tumor gene markers and a specific blood-gene type. It may help you shrink tumors or control the cancer if you match the study’s required lab and health criteria.
NaplesAges 18–75 - NCT03875781RecruitingPhase 3
Chemo before rectal surgery, without pelvic radiation
This Phase 3 study tests whether giving chemotherapy before rectal surgery can work as well as standard treatment that usually includes pelvic radiation. It aims to reduce the need for pelvic radiation while still keeping the cancer under control.
Le Kremlin-Bicêtre, Île-de-France RegionAges 18 years+ - NCT06205485RecruitingPhase 3
Chemotherapy and surgery vs chemoradiation for rectal cancer
This trial compares two approaches for early-stage rectal cancer: chemotherapy plus local surgery versus standard chemoradiotherapy. It aims to see if less intensive treatment can work just as well, reducing side effects.
Phoenix, ArizonaAges 18 years+ - NCT04103567Recruiting
Testing stool and bacteria clues for poor rectal cancer response
This study looks at stool samples to see whether gut bacteria or other microbes help explain why some rectal cancers respond less well to treatment given before surgery. If you have mid or lower rectal cancer and are planning pre-surgery treatment, your information and stool sample may help researchers improve how treatment is chosen.
Montpellier, HéraultAges 18 years+ - NCT04109755RecruitingPhase 2
Pembrolizumab plus radiation before surgery for rectal cancer
This trial tests whether giving pembrolizumab (an immunotherapy medicine) together with short-course radiation before surgery helps people with localized rectal cancer. It is mainly for tumors that are microsatellite stable (MSS).
GenevaAges 18 years+ - NCT04288999RecruitingPhase 3
Surgery plus chemo versus chemo-radiation then surgery for recurrent rectal cancer
This study compares two treatment plans for locally recurrent rectal cancer: (1) surgery plus chemo, or (2) chemo plus radiation first, then surgery, followed by chemo. It aims to see which approach works better in controlling the cancer and helping patients recover.
ChibaAges 20–80 - NCT04804956Recruiting
Testing gut microbes and metabolites to predict rectal cancer outcomes
This study looks at patterns in the gut microbiome (gut bacteria) and gut chemicals (metabolites) to predict how rectal cancer may do after planned surgery. By understanding these markers, researchers hope to better forecast prognosis and tailor follow-up.
Girona, GironaAges 18–18 - NCT04912765RecruitingPhase 2
New immune vaccine plus nivolumab for liver cancer
This trial studies whether an individualized “neoantigen” cancer vaccine given to immune cells (dendritic cells) plus nivolumab can improve outcomes in people with liver cancer and/or colorectal cancer that has spread only to the liver. It focuses on tumors that can be removed with curative surgery (with or without local ablation) and on people with good enough liver and overall health.
SingaporeAges 21 years+ - NCT05112016Recruiting
Study of surgery outcomes after rectal cancer
This study follows people who had surgery for rectal cancer to understand long-term recovery and quality of life. You may be asked to complete questionnaires before surgery and again after the stoma is reversed, and your answers help researchers improve care.
Winterthur, Canton of ZurichAges 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.