Clinical Research Directory
Browse clinical research sites, groups, and studies.
298 clinical studies listed.
Filters:
Tundra lists 298 Rectal Cancer clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.
This data is also available as a public JSON API. AI systems and LLMs are encouraged to use it for structured queries.
NCT07011576
A Study of Fruquintinib Plus FOLFIRI as Second-Line Treatment for Participants With Metastatic Colorectal Cancer (FRUITFUL)
This is an open-label multicenter, single-arm Phase II study of Fruquintinib in combination with FOLFIRI (leucovorin calcium (folinic acid), fluorouracil, and irinotecan) in participants with metastatic colorectal cancer (mCRC). The main goals of this study are to: * Evaluate the efficacy of the combination of fruquintinib + FOLFIRI in the 2nd-line mCRC setting * Evaluate the safety of the combination of fruquintinib + FOLFIRI
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-12
10 states
NCT01148056
Intensity Modulated Radiation Therapy (IMRT) for Patients With Rectal Cancer
This study will investigate short course radiation therapy using IMRT as an alternative to standard chemo radiation because prior studies have shown that this method of treatment will potentially reduce some fo the side effects of standard treatment, improve quality of life, and help to control the growth of rectal cancer cells. IMRT is a type of radiation that uses computer-generated images to match radiation to the size and shape of the tumor. Since the intensity of each radiation beam can be controlled, the radiation dose can wrap around normal tissue which allows the study doctor to deliver a higher dose of radiation to the tumor with less damage to nearby healthy tissue. The purpose of this research study is to see what impact this treatment will have on quality of life, as well as to see if there are any late side effects that come about after the participant has completed the treatment.
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-12
1 state
NCT06051695
A Study to Evaluate the Safety and Efficacy of Mesothelin-Targeting Logic-gated CAR T, in Participants With Solid Tumors That Express MSLN and Have Lost HLA-A*02 Expression
The goal of this study is to test autologous logic-gated Tmod™ CAR T-cell products in subjects with solid tumors including colorectal cancer (CRC), pancreatic cancer (PANC), non-small cell lung cancer (NSCLC), ovarian cancer (OVCA), mesothelioma (MESO), and other solid tumors that express mesothelin (MSLN) and have lost HLA-A\*02 expression. The main questions this study aims to answer are: Phase 1: What is the recommended dose that is safe for patients Phase 2: Does the recommended dose kill solid tumor cells and protect the patient's healthy cells Participants will be required to perform study procedures and assessments, and will also receive the following study treatments: Enrollment and Apheresis in BASECAMP-1 (NCT04981119) Preconditioning Lymphodepletion (PCLD) Regimen Tmod CAR T cells at the assigned dose
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-12
9 states
NCT03879109
Chemotherapy Followed by Pelvic Reirradiation Versus Chemotherapy Alone as Pre-operative Treatment for Locally Recurrent Rectal Cancer
GRECCAR 15 is focused on Locally Recurrent Rectal Cancer (LRRC) for patients with previous pelvic radiotherapy for the primary rectal cancer. This situation leads to a 20% higher risk of non-curative resection for the LRRC management (R1 status) impacting significantly the overall survival. The widespread use of neoadjuvant radiotherapy for primary rectal cancer introduces this new problem: the treatment of LRRC in previously irradiated area. The objective of GRECCAR 15 is to assess the efficacy of neoadjuvant chemotherapy followed by pelvic reirradiation versus neoadjuvant chemotherapy alone on the rate of curative surgery (R0) in previously irradiated patients with LRRC.
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-11
NCT06884670
Assessment of Efficacy and Safety of PD-1 Monoclonal Antibody Combined With IL-2 and CapeOX in Neoadjuvant Therapy for Locally Advanced Rectal Cancer Prior to Surgery: A Prospective, Multi-center, Randomized Controlled Study
The objective is to evaluate whether the neoadjuvant combination of tislelizumab (a PD-1 inhibitor) with interleukin-2 (IL-2) chemotherapy can significantly increase the Objective Response Rate (ORR) and the Pathological Complete Response rate (pCR) in patients with locally advanced rectal cancer who have Microsatellite Stable/Proficient Mismatch Repair (MSS/pMMR) status.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2026-06-10
1 state
NCT04804956
Mesorectal Microbiome and Metabolome as a Prognostic Factor in Patients With Rectal Cancer
The equilibrium of intestinal microorganisms is essential for health an imbalance has been associated with an increased risk in the development of different pathologies; including colorectal cancer. Rectal cancer is the third most common neoplasm worldwide and the complete excision of the mesorectum is a major prognostic factor. The identification of microorganisms in the adipose tissue that surrounds the small intestine in inflammatory diseases, together with bacterial alterations found in colonic mucosa and feces in patients with rectal cancer in comparison with healthy individuals indicates that microbiome alteration plays an essential role in pathogenesis. The mesorectal microbiome in rectal cancer patients stills unknown and given its importance in the prognostic of the disease the goal of this study is to identify microbial profiles that allow predicting rectal cancer patients with a poor prognosis.
Gender: All
Ages: 18 Years - 18 Years
Updated: 2026-06-10
1 state
NCT06205485
Neoadjuvant Chemotherapy, Excision And Observation vs Chemoradiotherapy For Rectal Cancer
This study is being done to answer the following questions: Is the chance of rectal cancer responding the same if chemotherapy alone is given before limited surgery compared to chemotherapy and radiation therapy given together before limited surgery? If radiation therapy is not given, is quality of life better?
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-09
34 states
NCT07306390
Distribution and Analysis of Metastatic Lymph Nodes in Colorectal Cancer Patients (DIAMOND)
The goal of this observational study is to learn about the spatial distribution and significance of metastatic lymph nodes in colorectal cancer patients. The main question it aims to answer is: * What is the spatial distribution pattern of metastatic lymph nodes in patients with colorectal cancer? * Can the spatial distribution pattern of metastatic lymph nodes in patients with colorectal cancer guide clinical practice? Participants should undergo regular follow-up examinations for at least 5 years after the surgery.
Gender: All
Ages: 18 Years - 80 Years
Updated: 2026-06-09
NCT07467434
FOLFIRINOX Induction Chemotherapy for Synchronous Liver Metastases
SYNCHRONOX is a multicenter cohort (retrospective then prospective) intending to include 550 patients with mid or low rectal adenocarcinoma (pMMR, T3-T4 and/or N+) and resectable synchronous liver metastases, treated upfront with at least two cycles of induction FOLFIRINOX chemotherapy. The primary objective is to determine, at 18 months, the R0 resection rate of both tumor sites (rectum and liver), while secondary objectives focus on 3 year overall and progression free survival, radiological and pathological responses, postoperative morbidity and mortality, and comparison of the different surgical strategies after FOLFIRINOX.
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-09
NCT07188025
ctDNA-Based Adjuvant Chemotherapy for High-Risk Rectal Cancer
The goal of this clinical trial is to investigate whether adjuvant chemotherapy can prevent disease recurrence in patients with high-risk rectal cancer who have detectable ctDNA after surgery. The main research question the REACT study aims to answer is: \- Does adjuvant chemotherapy improve disease-free survival in patients with high-risk rectal cancer with detectable ctDNA after surgery? Interventions: \- Patients with detectable ctDNA after surgery and randomised to the experimental group will be offered adjuvant chemotherapy (4 cycles CAPOX/6 cycles FOLFOX) within 12 weeks after surgery.
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-09
NCT05772481
Interest of PET-MRI in the Evaluation of the Response After Neoadjuvant Treatment of Locally Advanced Rectal Adenocarcinoma
With 50 patients included, this trial would be the largest pilot study evaluating the value of MRI PET in locally advanced rectal cancer. On the other hand, it would be the only pilot study performing several MRI PET during neoadjuvant treatment. Presumably, the response assessed at the 2nd MRI PET (before cycle 4 or induction chemotherapy) would be predictive of the overall response at the end of neoadjuvant treatment. Then, it would be possible to predict precociously the tumor response.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2026-06-05
NCT07098182
Contribution of Preserving the Superior Left Colic Artery to the Vascularization of the Descending Colon Prior to Colorectal Anastomosis During Left-Sided or Rectal Resections for Colorectal or Ovarian Cancer. (Revascularisation Colique)
Colorectal cancers and ovarian cancers are respectively the 2nd and 5th cause of cancer mortality in France. Surgical resection is a crucial step in the therapeutic management of colorectal cancers. For advanced ovarian cancers, the objective of cytoreductive surgery is to obtain complete macroscopic resection with no visible residual disease. One or more digestive resections are often required to achieve this goal of complete surgery (usually a modified posterior pelvic exenteration with colorectal resection). A ligation of the inferior mesenteric artery at its origin is classically performed in left colectomies and rectal resection for colorectal cancers. This allows the resection of the colorectal segment with a complete mesocolic lymphadenectomy until the origin of the inferior mesenteric artery and a good mobilization of the descending colon to allow its anastomosis to the underlying rectal stump. This ligation of the inferior mesenteric artery at its origin is also frequently performed in cases of modified posterior pelvic exenteration for ovarian cancer. Recently, several studies suggest that arterial ligation of the inferior mesenteric artery could be performed below the emergence of the left colic artery. Its preservation requiring a meticulous vascular dissection would allow a better vascularization of the descending colon and of the colorectal anastomosis without affecting the carcinologic quality of the resection and the number of resected lymph-nodes. Indeed, the most feared complication during colorectal anastomosis is the anastomotic leakage whose rates are on average 15% in rectal cancer with low anastomosis and 6% in ovarian cancers. Verifying the adequate vascularization of the descending colon before performing the colorectal anastomosis is a crucial step in reducing the risk of postoperative fistula. However, quantifying this vascularization is challenging, and several techniques can be used to assess it. The gold standard technique involves measuring arterial pressure using a catheter inserted into the marginal artery of the descending colon. Other non-invasive techniques also use Doppler studies to calculate pressure in the marginal artery or assess oxygen saturation using a sterile sensor. Studies have shown that the use of indocyanine green in colorectal surgery, particularly to evaluate perfusion before the creation of an anastomosis, significantly reduces the rate of anastomotic leakage. Indocyanine green is a fluorescent dye that, after intravenous injection, binds to plasma proteins and allows tissue perfusion to be visualized using a fluorescence system. The objective of this project is to show that the preservation of the left colic artery is possible and allows a better vascularization of the descending colon before colorectal anastomosis.
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-04
1 state
NCT07404228
Multidimensional Study Designed to Develop a Methodological Framework Based on MRI Data to Predict Pathological Complete Response (pCR) in Patients With Locally Advanced Rectal Cancer After Neoadjuvant Treatment
Rectal cancer presents a significant global health challenge. Despite improvements in clinical outcomes, significant disparities persist across Europe. These differences are explained not only by the heterogeneity of risk factors and screening strategies, but also by variations in diagnostic and therapeutic approaches, which are highly dependent on medical imaging. Standard treatment for locally advanced rectal cancer based on staging MRI is neoadjuvant treatment (NAT), for tumour downsizing and downstaging, followed by total mesorectal excision. In a significant proportion of cases, radical surgery leads to substantial long-term complications like sexual and urinary dysfunction, fecal incontinence, and impairment in daily activities. Given that up to 42% of patients show complete tumor regression at pathology (i.e. pathological complete response pCR), to avoid unnecessary radical surgery, non-operative management has become an attractive alternative when there are no signs of viable tumour after NAT (i.e. clinical complete response cCR). Such patients are candidates for Watch-and-Wait (W\&W), an established active surveillance policy in specialized centers worldwide relying on clinical examination, endoscopy and MRI. On the other hand, W\&W carries a risk of local regrowth (persistence of microscopic residual disease despite apparent cCR). Even in expert hands, assessment of tumor response is not perfect and local regrowth based on current selection methods occurs in \~30% of cases. Although deferred surgery is a successful treatment with no apparent negative impact on local disease control, an increased rate of distant metastases has been recently reported. Therefore, there is a critical unmet clinical need to detect complete responses after NAT and avoid unnecessary surgery with its associated morbidity and quality of life impairment risks, while also improving sensitivity for residual microscopic disease that will result in local regrowth and associated reduced disease-free survival. Rectal cancer poses a burden not only on healthcare systems, but also on patient well-being. Patients frequently suffer from feelings of isolation and helplessness when faced with unpredicted disease-related situations, given the common difficulties to access high quality information and communicate with attending physicians. As such, there is a clear need to unburden healthcare facilities from unnecessary hospital visits, while improving patient outcomes, engagement, support and care.
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-04
1 state
NCT06577194
A Single-Center, Single-Arm Study of Neoadjuvant Short-Course Radiotherapy Followed by Sequential Immunotherapy With CAPOX Combined With PD-1 Antibody and IL-2 for Locally Advanced Rectal Cancer
A Single-Center, Single-Arm Study of Neoadjuvant Short-Course Radiotherapy Followed by Sequential Immunotherapy with CAPOX Combined with PD-1 antibody and IL-2 for Locally Advanced Rectal Cancer
Gender: All
Ages: 18 Years - 70 Years
Updated: 2026-06-03
1 state
NCT07619768
Self Regulation Hypnotic Intervention for Pain and Anxiety During Rectal Brachytherapy
The goal of this study is to compare a Self-Regulation Hypnotic Intervention (SRHI) to the standard procedure (Treatment As Usual with analgesic and sedative agents) for pain and anxiety management during rectal cancer brachytherapy. Hypnotizability of patients undergoing this procedure will be assessed and those who are thought to need analgesic and sedative agents during the procedure will be distributed (sequentially adjusted randomization) in two groups, one that will be trained and assisted using hypnosis and one that will not. Procedural pain, anxiety, difficulty and patients' vital sign will be assessed. Our hypothesis is that patients in the hypnosis group will experience less pain and anxiety and will need less medication than those in the control group.
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-02
1 state
NCT05056077
Improving Nutrition and Physical Activity for Cancer Survivors (Tools To Be Fit)
This clinical trial studies the effect of four different intervention components "tools" on body weight, nutrition, and physical activity in cancer survivors. Studies indicate that people with a history of cancer whose nutrition and physical activity habits are consistent with the American Cancer Society's Nutrition and Physical Activity Guidelines may have longer disease-free survival. The four different intervention components may help patients with a history of cancer adopt recommended health behaviors after they have completed treatment.
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-02
1 state
NCT06637462
A Study of Response to Standard Treatment Before Surgery in People With Rectal Cancer
The purpose of the study is to learn more about how the body responds to standard treatment (chemoradiation and chemotherapy). The study will use the results of testing down on participants' blook, tissue, and scans to learn more about how people with rectal cancer respond to chemoradiation and chemotherapy treatment and if it is useful for predicting whether a person's cancer get better, gets worse, or stats the same after treatment.
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-02
2 states
NCT05007015
Transanal Irrigation for the Management of LARS
This study aims to evaluate the impact of Transanal irrigation (TAI) on the quality of life and low anterior resection symptoms (LARS) in Canadian rectal cancer survivors living with minor to major LARS. It proposes to teach TAI through a novel online platform and to provide virtual nursing support for the participants. To our knowledge, this is the first North American based and largest randomized control trial on the use of TAI for patients with LARS. This will also be the first study to teach and support patients through the TAI process using a virtual platform. While TAI has been demonstrated to reduce LARS scores and increased QoL in patients with significant LARS, its feasibility and acceptance for Canadian patients remains uncertain. Furthermore despite the existing studies, the rate of TAI seems to be low in North America. The hypothesis is that TAI, taught and supported through an online portal dedicated to LARS patients, will positively impact QoL and improve LARS symptoms. The results of this trial may allow TAI to become part of the standard armamentarium that clinicians offer patients for LARS management, with the presence of online nursing support and guidance to facilitate this practice.
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-02
3 states
NCT04643366
Total Neoadjuvant Therapy With mFOLFOX and Short-course Radiation in Resectable Rectal Cancer
This is phase 2 trial of neoadjuvant therapy and short-course radiotherapy in resectable rectal cancer.
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-02
1 state
NCT07616297
Higher Radiation Dose to the Tumor May Help Avoid Surgery in Rectal Cancer Patients
The goal of this prospective study is to evaluate if a higher radiation dose to the tumor can increase the organ preservation rate in non-locally advanced rectal cancer.
Gender: All
Ages: 18 Years - Any
Updated: 2026-06-01
1 state
NCT03190941
Administering Peripheral Blood Lymphocytes Transduced With a Murine T-Cell Receptor Recognizing the G12V Variant of Mutated RAS in HLA-A*11:01 Patients
Background: A new cancer therapy involves taking white blood cells from a person, growing them in the lab, genetically modifying them, then giving them back to the person. This therapy is called gene transfer using anti-KRAS G12V mTCR cells. Objective: To see if anti-KRAS G12 V mTCR cells are safe and can shrink tumors. Eligibility: Adults at least 18 years old with cancer that has the KRAS G12V molecule on the surface of tumors. Design: In another protocol, participants will: Be screened Have cells harvested and grown Have leukapheresis In this protocol, participants will have the procedures below. Participants will be admitted to the hospital. Over 5 days, participants will get 2 chemotherapy medicines as an infusion via catheter in the upper chest. A few days later, participants will get the anti-KRAS G12V mTCR cells via catheter. For up to 3 days, participants will get a drug to make the cells active. A day after getting the cells, participants will get a drug to increase their white blood cell count. This will be a shot or injection under the skin. Participants will recover in the hospital for 1-2 weeks. They will have lab and blood tests. Participants will take an antibiotic for at least 6 months. Participants will have visits every few months for 2 years, and then as determined by their doctor. Visits will be 1-2 days. They will include lab tests, imaging studies, and physical exam. Some visits may include leukapheresis or blood drawn. Participants will have blood collected over several years.
Gender: All
Ages: 18 Years - 72 Years
Updated: 2026-05-29
1 state
NCT07341126
Use of a Novel Camera to Check the Bowel After Polyp or Tumour Removal
1.1 Polyps or tumours in the lower part of the bowel (rectum) can be removed using instruments inserted through the bottom which avoids major surgery and the possibility of a stoma bag (colostomy). Afterwards, it is important to check the area with regular camera tests. If checks are delayed, re-growths could be serious and may be untreatable. COVID and other factors have led to long waiting lists for camera checks and in NHS Lothian around 20% of all camera checks are done more than 6 months late. The investigators want to try a new camera and approach that would allow us to reduce waiting lists. Using a short camera called a 'rectoscope' to check the lower bowel has already been shown to be safe, comfortable and acceptable to patients with other conditions. In fact, patients are unlikely to feel or realise any difference between the rectoscope and standard camera tests. The investigators want to show that this 'rectoscope' can be safely used in the outpatient clinic with an enema (suppository) instead of strong bowel medicine taken by mouth the day before. This would mean the camera checks happen on time and would reduce waiting lists for other important tests. The investigators will include 30 patients across three stages of our study. In the first set of patients, the investigators will use the rectoscope alongside the usual endoscope in the endoscopy room using the usual oral bowel medicine. This stage will check the rectoscope is acceptable to the patient and the doctor. In the next 10 patients the investigators will use a suppository instead of oral bowel medicine still using both cameras. Finally, the investigators will use the rectoscope in the outpatient clinic with an suppository to show this is an easy, effective and acceptable way to deliver timely camera checks.
Gender: All
Ages: 16 Years - Any
Updated: 2026-05-29
NCT02403505
Early Phase Clinical Trial About Therapeutic Biological Product Mix for Treating CEA Positive Rectal Cancer
Conducting an early phase clinical trial to assess CEA Antigen Presentation Therapeutic Biological Product Mix activity that suggests the potential for clinical benefit of CEA positive rectal cancer patients. 1. Treat CEA positive rectal cancer via Trained Immunity. 2. Activate human CEA Protein Antigen Presentation Reaction. 3. The human antigen presenting cells (APCs) can treat the CEA protein antigen into small peptide fragments, and then kill CEA positive rectal cancer cells in vivo.
Gender: All
Ages: 24 Years - 64 Years
Updated: 2026-05-28
1 state
NCT06337552
High-Fermented Food Intervention Among Locally Advanced Rectal Cancer Patients (The FEED Trial)
The purpose of the study is to evaluate the feasibility and acceptability of a dietary intervention (FEED-FF) that includes fermented foods (FF), among locally advanced rectal cancer patients and non-small cell lung cancer (NSCLC) patients, and to explore whether this diet can improve outcomes in rectal cancer patients receiving chemoradiation and NSCLC patients receiving immunotherapy.
Gender: All
Ages: 18 Years - Any
Updated: 2026-05-26
1 state