Rectum adenocarcinoma
MONDO:0002169An adenocarcinoma arising from the rectum. It is more frequently seen in populations with a Western type diet and in patients with a history of chronic inflammatory bowel disease. Signs and symptoms include intestinal bleeding, anemia, and change in bowel habits. According to the degree of cellular differentiation, rectal adenocarcinomas are divided into well, moderately, and poorly differentiated. Histologic variants include mucinous adenocarcinoma, signet ring cell carcinoma, medullary carcinoma, serrated adenocarcinoma, cribriform comedo-type adenocarcinoma, and micropapillary adenocarcinoma.
Also known as: adenocarcinoma - rectum, adenocarcinoma of rectum, adenocarcinoma of the rectum, rectal adenocarcinoma, rectum adenocarcinoma, read
3122 clinical trials for this condition and its sub-types, 232 tagged with Rectum adenocarcinoma itself.
Follow this condition to get notified about new trialsWhere it sits in the disease tree
Browse by category →Sub-types of Rectum adenocarcinoma
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Rectum mucinous adenocarcinoma 1 trial
1 sub-type
- Anal mucinous adenocarcinoma 0 trials
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Anus adenocarcinoma 0 trials · 1 incl. sub-types
4 sub-types
- Anal Paget disease 1 trial Sub-types →
- Anal canal adenocarcinoma 0 trials · 1 incl. sub-types Sub-types →
- Anal gland adenocarcinoma 0 trials
- Anal mucinous adenocarcinoma 0 trials
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Rectal medullary carcinoma 0 trials
Most studied deeper sub-types
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Can an arthritis drug boost rectal cancer therapy?
Disease control CompletedThis trial is testing whether adding anakinra, a drug used for arthritis, to standard chemoradiotherapy is safe for people with rectal cancer. The study will include about 12 patients and will use a dose-escalation design to find the highest tolerable dose of capecitabine when co…
Phase 1 • Sponsor: Goethe University • Aim: Disease control
Last updated Aug 19, 2026 00:00 UTC
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New drug combo aims to shrink rectal tumors before surgery
Disease control CompletedThis early-stage study tests the safety of combining the chemotherapy drug TAS-102 with radiation therapy for people with stage II or III rectal cancer that hasn't been treated yet. The goal is to find the safest dose of TAS-102 to use with radiation before surgery to remove the …
Phase 1 • Sponsor: OHSU Knight Cancer Institute • Aim: Disease control
Last updated Aug 08, 2026 00:03 UTC
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New cocktail approach aims to wipe out High-Risk rectal cancer without surgery
Disease control CompletedThis phase 2 trial tests a powerful mix of short-course radiation, chemotherapy (mFOLFOX6), an immunotherapy (PD-1 antibody), and a targeted drug (cetuximab or bevacizumab, depending on genetic markers) in people with high-risk rectal cancer that is mismatch repair proficient (pM…
Phase 2 • Sponsor: Sixth Affiliated Hospital, Sun Yat-sen University • Aim: Disease control
Last updated Aug 06, 2026 00:00 UTC
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Could a cup of green tea keep colon cancer away?
Disease control CompletedThis pilot study tests whether a purified green tea extract called EGCG can help prevent colon cancer from coming back after surgery. 51 patients who had their colon cancer removed took either the extract or a placebo. Researchers are checking for changes in DNA methylation, a ma…
Early phase 1 • Sponsor: The University of Texas Health Science Center at San Antonio • Aim: Disease control
Last updated Jul 02, 2026 00:00 UTC
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Stool transplants via stoma show promise for treating Post-Surgery colon inflammation
Disease control CompletedThis study tests whether giving patients their own stool bacteria through a temporary stoma can reduce inflammation in the unused part of the colon, a condition called diversion colitis. Sixty-six people with rectal cancer who have a temporary ileostomy will receive either a dail…
Sponsor: Yongjian Liao • Aim: Disease control
Last updated Jul 01, 2026 00:00 UTC
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Immunotherapy cocktail shows promise against tough rectal cancers
Disease control CompletedThis study tested whether giving a mix of immunotherapy drugs (tislelizumab and IL-2) plus chemotherapy before surgery could shrink tumors more effectively in people with locally advanced rectal cancer. The trial involved 130 adults whose cancers had not spread but were hard to t…
Phase 2 • Sponsor: The First Affiliated Hospital with Nanjing Medical University • Aim: Disease control
Last updated Jun 27, 2026 14:02 UTC
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Drain or no drain? landmark trial settles debate after rectal cancer surgery
Disease control CompletedThis study tested whether placing a temporary drain in the pelvis after rectal cancer surgery reduces the risk of serious infections like leaks or abscesses. About 500 patients were randomly assigned to receive a drain or not. The main goal was to see if drainage lowered pelvic s…
Phase 3 • Sponsor: University Hospital, Bordeaux • Aim: Disease control
Last updated Jun 27, 2026 12:34 UTC
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New hope for rectal cancer: extra chemo may save the rectum
Disease control CompletedThis phase 3 trial tested whether adding two months of Folfirinox chemotherapy before standard radiation and chemo could help more patients with early-stage rectal cancer avoid major surgery. 218 adults with small, low-lying tumors were enrolled. The goal was to see if more patie…
Phase 3 • Sponsor: University Hospital, Bordeaux • Aim: Disease control
Last updated Jun 27, 2026 12:32 UTC
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Immunotherapy combo shows promise against tough rectal cancers
Disease control CompletedThis study tested whether adding an immunotherapy drug called APX005M to standard treatment helps people with advanced rectal cancer achieve a complete response (no cancer left after treatment). 58 adults with stage II or III rectal cancer at high risk took part. The goal was to …
Phase 2 • Sponsor: University of Texas Southwestern Medical Center • Aim: Disease control
Last updated Jun 27, 2026 12:29 UTC
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Radiation-Chemo combo may let rectal cancer patients skip surgery
Disease control CompletedThis study tested whether a short course of radiation followed by chemotherapy could eliminate the need for surgery in people with early-stage rectal cancer. 63 patients were enrolled, and the treatment aimed for a complete clinical response, meaning no tumor could be found on ex…
Sponsor: Washington University School of Medicine • Aim: Disease control
Last updated Jun 27, 2026 12:28 UTC
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New 'Bottom-Up' surgery for rectal cancer could mean faster recovery
Disease control CompletedThis study tested a newer, less invasive surgery called ETAP (done through the anus) against standard laparoscopic surgery (done through the belly) for low rectal cancer. 226 adults took part. The goal was to see if ETAP is as good at removing all cancer while possibly leading to…
Phase 3 • Sponsor: Institut Paoli-Calmettes • Aim: Disease control
Last updated Jun 27, 2026 12:23 UTC
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Chemo-First approach aims to save rectums in early cancer trial
Disease control CompletedThis study tested giving chemotherapy before a less invasive surgery for early rectal cancer. The goal was to see if this approach could allow patients to keep their rectum instead of needing major surgery. 58 people took part, and the treatment was considered successful if at le…
Phase 2 • Sponsor: Canadian Cancer Trials Group • Aim: Disease control
Last updated Jun 27, 2026 12:05 UTC
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Can a DNA test predict who will respond to cancer immunotherapy?
Disease control CompletedThis completed Phase 2 trial tested whether a special DNA-based test could predict how well patients with stomach or rectal cancer respond to immunotherapy (tislelizumab) combined with chemotherapy and/or radiation. 189 adults with advanced cancer participated. The goal was to se…
Phase 2 • Sponsor: Daping Hospital and the Research Institute of Surgery of the Third Military Medical University • Aim: Disease control
Last updated Jun 27, 2026 12:02 UTC
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New cocktail shows promise for Tough-to-Treat colorectal cancer
Disease control CompletedThis phase II trial tested a combination of three drugs—TAS-102, irinotecan, and bevacizumab—in 42 people with advanced colorectal cancer that had spread or couldn't be removed. The goal was to see if this mix could slow tumor growth better than standard treatments. Participants …
Phase 2 • Sponsor: Roswell Park Cancer Institute • Aim: Disease control
Last updated Jun 27, 2026 09:03 UTC
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New antibody combo shows promise against Hard-to-Treat colorectal cancer
Disease control CompletedThis phase II trial tested two different drug combinations in 240 people with advanced HER2-positive colorectal cancer that had spread and could not be removed by surgery. One group received the antibodies trastuzumab and pertuzumab, while the other received cetuximab (an antibod…
Phase 2 • Sponsor: SWOG Cancer Research Network • Aim: Disease control
Last updated Jun 27, 2026 09:03 UTC
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New cocktail of drugs shows promise for tough colorectal cancer
Disease control CompletedThis phase 1 trial tested a combination of regorafenib (a targeted therapy) plus two immunotherapy drugs (nivolumab and ipilimumab) in 39 patients with advanced colorectal cancer that had spread and stopped responding to chemotherapy. The goal was to find the safest dose and chec…
Phase 1 • Sponsor: City of Hope Medical Center • Aim: Disease control
Last updated Jun 27, 2026 09:00 UTC
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Surgery before chemo for advanced rectal cancer? small trial offers few answers
Disease control CompletedThis study looked at whether removing the primary rectal tumor before starting chemotherapy helps people with rectal cancer that has spread to other organs (but cannot be cured) live longer. Only 5 people took part, and the trial was completed early. The results are too limited t…
Phase 3 • Sponsor: Hospices Civils de Lyon • Aim: Disease control
Last updated Jun 27, 2026 08:05 UTC
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New combo shrinks rectal tumors before surgery
Disease control CompletedThis study tested a shorter radiation course combined with TASOX chemotherapy in 13 people with stage II/III rectal cancer before surgery. The goal was to shrink tumors and make surgery more effective. Results showed the treatment was safe and helped reduce cancer stage, but ongo…
Phase 2 • Sponsor: Providence Health & Services • Aim: Disease control
Last updated Jun 27, 2026 08:03 UTC
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Could adding veliparib or pembrolizumab to standard therapy shrink rectal tumors better?
Disease control CompletedThis phase II trial tested whether adding veliparib or pembrolizumab to standard chemotherapy and radiation therapy helps shrink tumors in people with locally advanced rectal cancer. 363 participants received either standard treatment or one of the experimental combinations. The …
Phase 2 • Sponsor: National Cancer Institute (NCI) • Aim: Disease control
Last updated Jun 27, 2026 08:01 UTC
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New combo therapy aims to shrink rectal tumors and save sphincters
Disease control CompletedThis phase 2 trial tested whether adding a PD-1 inhibitor (Sintilimab) after standard chemoradiotherapy could improve outcomes for 30 patients with locally advanced mid-low rectal cancer. Participants received radiation and chemotherapy, then three doses of Sintilimab, followed b…
Phase 2 • Sponsor: Peking University People's Hospital • Aim: Disease control
Last updated Jun 27, 2026 07:59 UTC
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New surgery for rectal cancer could cut leak risk and stoma need
Disease control CompletedThis phase 2 trial tested a two-step surgical procedure called delayed coloanal anastomosis (2SCA) in 124 patients with medium or lower rectal cancer. The goal was to see if this technique lowers the rate of dangerous leaks at the surgical connection and reduces the need for a co…
Phase 2 • Sponsor: Institut Bergonié • Aim: Disease control
Last updated Jun 26, 2026 14:02 UTC
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Blood test and CT combo may spare rectal cancer patients a second surgery
Diagnosis CompletedThis study tests whether a combination of serial C-reactive protein blood tests and targeted CT scans can safely identify which rectal cancer patients can skip a temporary ileostomy after laparoscopic low anterior resection. Anastomotic leakage is a serious complication, and a pr…
Sponsor: Alexandria University • Aim: Diagnosis
Last updated Sep 04, 2026 00:00 UTC
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New digital scope could help rectal cancer patients avoid surgery
Diagnosis CompletedThis study tested a new digital scope called LUMENEYE to see if it can better measure how much a rectal tumor has shrunk after chemotherapy and radiation. 82 patients who were good candidates for organ preservation were included. The goal was to see if the scope could help doctor…
Sponsor: Bordeaux Colorectal Institute Academy • Aim: Diagnosis
Last updated Jun 27, 2026 12:30 UTC
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Can a counseling program restore intimacy after rectal cancer?
Symptom relief CompletedThis study tests whether a specialized sexual health education program can help people who have been treated for rectal, colorectal, or anal cancer improve their sexual function and emotional well-being. Participants are randomly assigned to either the new counseling program or s…
Sponsor: Memorial Sloan Kettering Cancer Center • Aim: Symptom relief
Last updated Aug 28, 2026 00:00 UTC
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New stent technique may replace ileostomy for rectal cancer patients
Symptom relief CompletedThis study tested whether a temporary stent placed inside the bowel could replace a traditional ileostomy (a bag outside the body) after rectal cancer surgery. 570 patients at high risk for leaks were randomly assigned to either the stent or ileostomy. The goal was to see if the …
Sponsor: Sir Run Run Shaw Hospital • Aim: Symptom relief
Last updated Jun 27, 2026 12:30 UTC
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Texting your way to better health: study tests SMS diet coach for cancer survivors
Symptom relief CompletedThis study tested whether sending personalized text messages could help colorectal cancer survivors eat more whole grains and less refined grains. Forty-six survivors who had finished active treatment received text messages and nutrition materials. The main goal was to see if peo…
Sponsor: University of California, San Francisco • Aim: Symptom relief
Last updated Jun 27, 2026 08:13 UTC
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MRI and microbes: a new way to predict rectal cancer outcomes?
Knowledge-focused CompletedThis study tests whether a novel MRI technique called Fast Field Cycling imaging and the bacteria in the mouth and bowel can predict how well rectal cancer responds to chemoradiotherapy given before surgery. Researchers will scan 15 patients three times and collect saliva and sto…
Sponsor: University of Aberdeen • Aim: Knowledge-focused
Last updated Sep 02, 2026 00:00 UTC
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Empty bladder may steady the target in rectal cancer radiation
Knowledge-focused CompletedThis study investigates whether having an empty bladder reduces movement of the mesorectum (tissue around the rectum) during radiotherapy for rectal cancer. About 50 adults with rectal cancer receive planning CT scans and weekly CBCT scans under both empty and full bladder condit…
Sponsor: Institut Cancerologie de l'Ouest • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:03 UTC
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New scan may tell rectal cancer patients if they can skip surgery
Knowledge-focused CompletedThis completed phase 2 study tested whether a new type of PET scan (FAPI-PET/CT) can accurately predict if rectal cancer has completely disappeared after a combination of short-course radiation, immunotherapy, and chemotherapy. Fifty-two patients with locally advanced rectal canc…
Phase 2 • Sponsor: Sun Yat-sen University • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:11 UTC
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Can a simple dye prevent deadly leaks after colon cancer surgery?
Knowledge-focused CompletedThis study looked at whether using a special dye (indocyanine green) during laparoscopic surgery for colon or rectal cancer can help surgeons see blood flow in real time and reduce the risk of a dangerous leak where the bowel is reconnected. Researchers compared 115 patients who …
Sponsor: Jagiellonian University • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:07 UTC
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Artery size may predict cancer spread in rectal cancer patients
Knowledge-focused CompletedThis study looked at 690 rectal cancer patients to see if the size of a specific artery (the middle rectal artery) on MRI scans could help predict whether cancer has spread to nearby lymph nodes. The goal was to create a tool that helps doctors decide if more extensive surgery is…
Sponsor: First Affiliated Hospital of Fujian Medical University • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:06 UTC
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AI outperforms traditional methods in predicting Post-Surgery bowel issues
Knowledge-focused CompletedThis study looked at 3500 rectal cancer patients who had minimally invasive surgery to see if computer models could better predict a common side effect called Low Anterior Resection Syndrome (LARS), which causes bowel control problems. Researchers tested seven different methods, …
Sponsor: Northern Jiangsu People's Hospital • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:02 UTC
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Scientists map cancer spread in low rectal tumors to guide surgeons
Knowledge-focused CompletedThis study looked at how ultralow rectal cancer spreads within the bowel wall in 106 patients. The goal was to understand the pattern of spread to help surgeons decide how much tissue to remove during surgery. By learning these patterns, doctors hope to create more personalized t…
Sponsor: First Affiliated Hospital of Wenzhou Medical University • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:53 UTC