Clinical trials
Rectal Cancer clinical trials
Below are recruiting rectal cancer clinical trials, each written for real people, not researchers. We’re tracking 405 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07567027Recruiting
Testing a spacing gel to improve prostate cancer freezing treatment
This trial tests whether a special gel placed between the prostate and rectum improves the safety and effectiveness of cryoablation—a freezing treatment for prostate cancer. The gel aims to protect the rectum from cold damage during the procedure.
New York, New YorkAges 40–95 - NCT05102110Recruiting
Check rectal mucus in people with throat or lung cancers
This study looks at a substance called rectal mucus during an exam to learn about changes in people with cancers of the throat/airways (aero-digestive tract). It’s a feasibility study, meaning it mainly tests whether this approach is safe and practical.
ExeterAges 18–99 - NCT06843434RecruitingPhase 2
Study of two immunotherapy drugs for rectal cancer
This trial tests a combination of two immunotherapy drugs, botensilimab and balstilimab, for people with newly diagnosed rectal adenocarcinoma that has not spread. The goal is to see if this treatment can shrink the tumor before surgery.
Basking Ridge, New JerseyAges 18 years+ - NCT05597852Recruiting
Rectal gel spacer to help repeat prostate radiation
This trial studies whether placing a soft gel spacer near the rectum can make “salvage” prostate radiation safer and more tolerable when prostate cancer comes back locally. It may help reduce side effects by creating extra space between the rectum and the radiation area.
Toronto, OntarioAges 18 years+ - NCT06997497RecruitingPhase 3
Study of Calderasib with other drugs for colorectal cancer
This trial tests a new drug called Calderasib combined with targeted therapy or chemotherapy for people with advanced colorectal cancer that has a specific genetic change (KRAS G12C mutation). It may be an option for those who have not had prior treatment for advanced disease.
Los Angeles, CaliforniaAges 18 years+ - NCT06630962Recruiting
Financial help for newly diagnosed cancer patients
This study looks at whether getting help with financial issues (like insurance and costs) can reduce the money worries and problems that come with cancer treatment. It is for people newly diagnosed with breast, colorectal, or prostate cancer who haven't started treatment yet.
Ile-IfeAges 18 years+ - NCT05984875Recruiting
Immune system study for ovarian cancer
This study looks at how the immune system works in people with epithelial ovarian cancer. It aims to understand the immune landscape around the tumor, which could lead to better treatments in the future.
BellinzonaAges 18 years+ - NCT06279299Recruiting
Lymph node removal for rectal neuroendocrine tumors during laparoscopic surgery
This trial tests whether removing lymph nodes in the pelvis during laparoscopic surgery for rectal neuroendocrine tumors (a type of slow-growing or aggressive tumor) improves outcomes. It is for people with larger or recurrent tumors, or those at higher risk due to tumor grade or depth.
Beijing, Beijing MunicipalityAges 18–75 - NCT04035642Recruiting
Single high-dose MRI-guided radiation for intermediate prostate cancer
This trial tests whether a single, image-guided radiation treatment can treat intermediate-risk prostate cancer while better protecting the urethra (the urine tube). It may help patients get effective cancer control with potentially fewer urinary side effects, depending on the results.
LisbonAges 18 years+ - NCT06402864RecruitingPhase 3
Internal radiation for rectal preservation in intermediate rectal cancer
This study is testing whether a special internal radiation treatment (contact X-ray brachytherapy) can help people with intermediate-stage rectal cancer avoid surgery and keep their rectum intact. It is for patients who are also receiving mFolfirinox chemotherapy.
Avignon, FranceAges 18–99 - NCT06542757Recruiting
Focused radiation to main prostate tumor using MRI guidance
This trial tests a stronger, more focused radiation dose to the main tumor inside the prostate using MRI guidance. It aims to improve control of intermediate-risk prostate cancer while possibly reducing side effects.
New York, New YorkAges 18 years+ - NCT07607990Recruiting
Rectal Indomethacin to Prevent Catheter Discomfort After Prostate Surgery
This study tests whether a special suppository (indomethacin, a pain-relieving medication) placed in the rectum can reduce bladder catheter discomfort after laparoscopic prostate removal surgery. If it works, it could help patients recover more comfortably.
Hangzhou, ZhejiangAges 18–80 - NCT05438563Recruiting
MRI-guided prostate cancer ablation with ultrasound from the urethra
This trial tests a newer way to treat certain low- to intermediate-risk prostate cancers using MRI guidance and an ultrasound probe placed through the urethra. It aims to destroy the tumor while using imaging to help target it more precisely.
Rochester, MinnesotaAges 45–80 - NCT04074720Recruiting
Collecting breast cancer tissue and blood samples
This study collects tissue and/or blood samples from people with breast cancer to help future research. It may be useful if you’re already having surgery or another procedure as part of your treatment plan.
Philadelphia, PennsylvaniaAges 18 years+ - NCT05977621Recruiting
Ultrasound imaging to guide radiation needle placement
This trial tests a guidance technique that uses ultrasound images matched to MRI (a real-time “map”) to help track the needle position during treatment for cervical or uterine cancer. It may help make radiation treatments more precise for people who are getting curative-intent radiation with brachytherapy.
Durham, North CarolinaAges 18–90 - NCT07222800RecruitingPhase 3
Testing a new drug plus chemo for stage 4 colorectal cancer
This study tests a new experimental drug (PF-08634404) combined with standard chemotherapy for people with stage 4 colorectal cancer who have not yet been treated for their advanced disease. The goal is to see if the combination helps shrink or slow the growth of tumors.
Chandler, ArizonaAges 18 years+ - NCT04749108RecruitingPhase 2/Phase 3
Tailored treatment for locally advanced rectal cancer after FOLFIRINOX
This trial studies a more customized treatment plan for people with locally advanced rectal (bowel) cancer after they receive FOLFIRINOX chemotherapy. It aims to reduce tumor spread risk and improve outcomes by tailoring the next steps based on scan details and your health status.
Marseille, Bouches Du RhôneAges 18 years+ - NCT06645808RecruitingEarly Phase 1
PET imaging study for various solid tumors
This study uses a special PET scan to see if a new imaging agent can help find and monitor certain solid tumors. It is for people with colon, rectal, sarcoma, breast, lung, head and neck, esophageal, stomach, pancreas, bladder cancers, or glioblastoma who have had standard treatment before surgery.
Groningen, Provincie GroningenAges 18 years+ - NCT05059444Recruiting
Blood test study to watch for cancer coming back
This study looks at whether blood tests can detect signs that cancer may return after curative-intent treatment. You would have blood drawn around your usual follow-up visits for up to 5 years, and your de-identified health data would be shared with study investigators.
Birmingham, AlabamaAges 18 years+ - NCT04165772RecruitingPhase 2
Dostarlimab for locally advanced mismatch-repair deficient solid tumors
This Phase 2 trial studies dostarlimab (an immune therapy that targets PD-1) given before surgery or other initial treatment. It aims to shrink certain locally advanced cancers that have mismatch repair deficiency, potentially making treatment easier and improving outcomes.
Hartford, ConnecticutAges 18 years+ - NCT05686226RecruitingPhase 2
Trial tests immune cells targeting HPV-16 cancers
This Phase 2 trial tests an immune-cell treatment (E7 TCR T cells) designed to attack cancers caused by HPV type 16. It may help people whose HPV-16+ cancer has come back or not responded to standard treatment.
Bethesda, MarylandAges 18 years+
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Common questions
- Are there clinical trials for rectal cancer?
- Yes. Clin2 currently lists 405 recruiting 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 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 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
Beyond the search
We also like to point to nonprofits doing real good in this area. We aren’t affiliated with them — we just admire the work.
- Stand Up To CancerPeople facing cancer across many types, through the research that leads to better treatments.
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.