Clinical trials
Rectal Cancer Surgery clinical trials
Below are recruiting rectal cancer surgery clinical trials, each written for real people, not researchers. We’re tracking 256 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06880055Recruiting
Shield blood test for colorectal cancer screening
This study is testing the Shield blood test for people at average risk of colorectal cancer. It looks at how well the test works for screening, so you can learn about your risk with a simple blood draw.
Chandler, ArizonaAges 45–81 - NCT05027737Recruiting
Earlier ileostomy closure after rectal cancer surgery
This study looks at whether closing a temporary ileostomy sooner is safe after rectal cancer surgery, when imaging shows no leak. It may help people avoid living with the stoma for longer, but only if specific safety checks are passed.
Vancouver, British ColumbiaAges 18–90 - 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+ - NCT07209787RecruitingPhase 4
Reinforced vs. standard connection for rectal cancer surgery
This trial tests whether a special reinforcement patch (made from pig tissue) can reduce the risk of leaks when the rectum is reconnected after rectal cancer surgery. It compares the reinforced connection to the standard method.
Beijing, Beijing MunicipalityAges Up to 85 years - NCT07605611Recruiting
Somatostatin and Diet vs. Stoma After Rectal Cancer Surgery
This trial tests whether using a medication called somatostatin plus a clear liquid diet can safely prevent serious complications after surgery to remove rectal cancer, without needing a temporary opening in the abdomen (stoma). You'll be randomly assigned to receive either somatostatin with diet changes or a stoma, depending on your individual risk factors.
Ezhou, HubeiAges 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 - NCT05049317Recruiting
Check urinary and sexual function after rectal cancer surgery
This study looks at how a specific rectal surgery (laparoscopic total mesorectum excision) affects urinary and sexual function after the operation. It may help patients by tracking what to expect and which factors relate to better recovery.
Wuhan, HubeiAges 18–70 - NCT07352280Recruiting
Immunotherapy before surgery for certain colorectal cancers
This trial tests a new immunotherapy drug (tislelizumab) given before surgery for people with stage II or III colorectal cancer that has a specific DNA repair problem (dMMR/MSI-High). The drug aims to shrink the tumor and improve treatment outcomes.
Beijing, UndefinedAges 18 years+ - NCT07594925RecruitingPhase 2
Short-course radiation plus immunotherapy and chemotherapy for rectal cancer
This trial tests a combination of brief radiation therapy followed by immunotherapy and chemotherapy for locally advanced rectal cancer that hasn't spread. The goal is to see if this approach helps patients avoid or reduce surgery while controlling their cancer.
TianjinAges 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 - NCT07337876RecruitingPhase 2
Avoiding surgery for rectal cancer with precise radiation
This trial tests a new way to give high-dose radiation to rectal cancer tumors while avoiding the bladder and bowels. The goal is to cure the cancer without removing the rectum, so you may keep normal bowel function.
Tübingen, Baden-WurttembergAges 18 years+ - NCT06906952Enrolling by invitation
Robotic surgery through the anus vs. standard robotic surgery for rectal cancer
This trial compares two robotic surgery methods for high rectal and sigmoid colon cancer—one that removes the tumor through the anus (NOSES-IV) and the traditional assisted approach. It aims to see which way may lead to better recovery.
NanchangAges 18–80 - NCT06272461Recruiting
Comparing lidocaine vs. ketamine for colorectal surgery pain
This trial compares two pain-relief medicines (lidocaine vs. ketamine) given through an IV during open colorectal surgery. It aims to find which one works better to reduce pain after surgery.
NabeulAges 18–90 - NCT07561060RecruitingPhase 1/Phase 2
Immunotherapy plus chemotherapy for early rectal cancer
This trial tests whether adding an immunotherapy drug called tislelizumab to standard chemotherapy and radiation can help patients with early-stage rectal cancer (cancer within 3 cm of the opening of the rectum) avoid surgery or improve surgery outcomes. The goal is to see if this combination is safe and effective.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT05523245Recruiting
AI MRI test to predict treatment response in rectal cancer
This study uses an AI computer program to read special MRI images and predict how well treatment (given before surgery) will work for people with locally advanced rectal cancer. It may help doctors better plan who benefits most from neoadjuvant therapy (treatment before surgery).
Guangzhou, GuangdongAges 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 - NCT05931419Recruiting
Radiation versus surgery for high-risk prostate cancer
This trial compares two standard treatment options—radiation or surgery—for people with high-risk prostate cancer that has not spread. The goal is to see which approach works better for long-term cancer control and side effects.
AlkmaarAges 50–75 - NCT02579278Recruiting
Tests blood DNA and scans in early colon cancer surgery
This study looks at a blood test that detects cancer DNA (ctDNA) and compares it with CT scan findings before surgery. It may help doctors understand how aggressive the cancer is and how scan features relate to blood test results.
Margate, KentAges 16 years+ - NCT07058012RecruitingPhase 2
Testing immunotherapy for ctDNA-positive colorectal cancer after treatment
This trial is for people with colorectal cancer whose ctDNA blood test is still positive after surgery and chemotherapy. It tests two immunotherapy drugs (cemiplimab alone or with fianlimab) to see if they can eliminate the remaining cancer cells and prevent the cancer from coming back.
Gainesville, FloridaAges 18 years+ - NCT03671252RecruitingPhase 3
Chemotherapy before surgery for rectal cancer vs chemo with radiation
This Phase 3 trial compares two treatment plans given before rectal surgery. It tests whether stronger chemotherapy alone works better than chemotherapy pills plus long-term radiation to improve outcomes for locally advanced rectal cancer.
Guangzhou, GuangdongAges 18–75 - NCT04808323RecruitingPhase 1
MRI-guided radiation to help preserve organs in rectal cancer
This Phase 1 study tests a radiation treatment approach guided by MRI scans to help keep nearby organs functioning while treating rectal cancer. It is designed to find a safe, effective way to target the tumor and adjust treatment during the course of therapy.
Milwaukee, WisconsinAges 18 years+ - NCT05943444Recruiting
Compares two ways to preserve bowel function after rectal surgery
This trial compares two surgical techniques to see which one better preserves anal function after surgery for low rectal cancer. If you may be eligible for anal-preserving surgery, it may help your care team choose the approach that best protects bowel control.
Guangzhou, GuangdongAges 18–75 - NCT06442215Recruiting
Choosing the best surgery for rectal cancer
This trial compares surgical techniques for removing rectal cancer (anterior resection). It looks at patients with adenocarcinoma who are scheduled for surgery to find the best approach.
GironaAges 18 years+ - NCT04184973Recruiting
Testing a colon bypass device during colorectal cancer surgery
This trial studies a device (CG-100) placed inside the bowel to see if it can improve safety and outcomes during surgery for colorectal cancer. You would be asked to follow extra study check-ins after your operation, and the team would monitor whether the device works as intended.
Irvine, CaliforniaAges 22–70
Hear when a new Rectal Cancer Surgery trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
Common questions
- Are there clinical trials for rectal cancer surgery?
- Yes. Clin2 currently lists 256 recruiting rectal cancer surgery 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 rectal cancer surgery 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 rectal cancer surgery 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.