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6 clinical studies listed.
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Tundra lists 6 Cancer of Rectum clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.
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NCT04095299
Standard Dose Versus High Dose of Radiotherapy in Rectal Preservation With Chemo-radiotherapy in Rectal Cancer Patients
In recent years, an increasing number of retrospective and prospective observational studies have indicated that a subset of rectal cancer patients may avoid surgery if they can achieve a complete response to chemoradiotherapy. Prospective trials, including the previous Danish Watchful Waiting trials (NCT00952926, NCT02438839) in early rectal cancer have demonstrated high levels of organ preservation with dose-escalation, but it is unclear whether this was primarily due to tumor stage or dose level. The aim of the present study is to investigate if a higher dose of radiotherapy is superior compared to a standard dose in patients with early rectal cancer undergoing chemoradiotherapy with curative intent.
Gender: All
Ages: 18 Years - Any
Updated: 2026-01-08
NCT03452774
SYNERGY-AI: Artificial Intelligence Based Precision Oncology Clinical Trial Matching and Registry
International registry for cancer patients evaluating the feasibility and clinical utility of an Artificial Intelligence-based precision oncology clinical trial matching tool, powered by a virtual tumor boards (VTB) program, and its clinical impact on pts with advanced cancer to facilitate clinical trial enrollment (CTE), as well as the financial impact, and potential outcomes of the intervention.
Gender: All
Updated: 2025-10-28
40 states
NCT05732389
Immunotherapy in Patients With Early dMMR Rectal Cancer
The purpose of this investigator-initiated, multicenter phase II trial is to evaluate the efficacy and tolerability of nivolumab and ipilimumab in patients with stage 1-3 MSI/dMMR rectal cancer. The primary objective is: Number of patients with complete clinical response after one or two cycles of immunotherapy. Patients will be treated with 1 or 2 cycles of combination immunotherapy: Cycle 1: Nivolumab 3 mg/kg days 1 and 15 \& ipilimumab 1 mg/kg day 1 Cycle 2: Nivolumab 3 mg/kg days 50 and 65 \& ipilimumab 1 mg/kg day 50
Gender: All
Ages: 18 Years - Any
Updated: 2025-08-07
NCT05179824
Tempus Priority Study: A Pan-tumor Observational Study
Observational study that will be collecting clinical and molecular health information from cancer patients who have received comprehensive genomic profiling and meet the specific eligibility criteria outlined for each cohort with the goal of conducting research to advance cancer care and create a dataset that furthers cancer research.
Gender: All
Updated: 2025-05-06
1 state
NCT06940778
LIQUID BIOPSY FOCUSING ON CIRCULATING TUMOR CELLS AND CIRCULATING TUMOR DNA AS PRECISION MEDICINE IN GASTROINTESTINAL TUMORS
This is a prospective, observational, multicenter cohort study. Our main objective is to to evaluate the use of CTCs and ctDNA with prognostic factors in locally advanced rectal tumors treated with total neoadjuvant therapy (TNT), recently adopted as clinical practice, and to analyze the functionality of CTCs and ctDNA in the follow-up of locally advanced and metastatic pancreatic and gastric tumors. Secondary objectives: * To verify the influence of CTC and ctDNA kinetics on the response to treatment of the three tumors; * To correlate RAD23B/TYMS findings and CTC kinetics with DFS in locally advanced rectal tumors; * To correlate HER-2 and PDL-1 expression in CTCs in gastric cancer with progression-free and overall survival; * To verify the correlation between EGFR methylation in ctDNA of metastatic gastric tumors and PFS and OS; * Correlate KRAS mutations in ctDNA in locally advanced pancreatic and rectal cancer with progression-free and overall survival; * Compare the mutational profile of the primary tumor with that of the main components of the liquid biopsy (CTCs and ctDNA), in the three disease scenarios.
Gender: All
Ages: 18 Years - 80 Years
Updated: 2025-04-27
1 state
NCT03573791
Biomarkers for Predicting Neoadjuvant Chemoradio-resistance for Middle-low Advanced Rectal Cancer
Neoadjuvant therapy has been widely applied to locally advanced rectal cancer. However, about 50% of patients receiving this therapy do not respond well as evidenced by the fact that their T or N stages are not effectively decreased judged by postoperative pathological examination. The purpose of this trail is to identify the biomarkers (from within patients' tumor mass before neoadjuvant therapy) to predict resistance to neoadjuvant therapy. These biomarkers can help stratify neoadjuvant-resistant patients towards surgery while avoiding unnecessary chemoradio-based neoadjuvant therapy.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2025-03-30
1 state