View clinical trials related to Rectal Neoplasms.
Filter by:1. To observe and measure the distance between the origin of LCA (left colonic artery，LCA) and IMA (inferior mesenteric artery，IMA) root and the distance between IMA and IMV (inferior mesenteric vein，IMV) at the origin of LCA in rectal cancer patients. Statistical analysis of intraoperative measured data, on the basis of the original anatomical relationship, to achieve anatomical localization of quantitative and accurate, for the preservation of LCA laparoscopic radical resection of rectal cancer to provide a strong anatomical basis. 2. The operation time, 253 lymph node dissection time, intraoperative blood loss, postoperative anal exhaust time, postoperative feeding time, postoperative hospital stay, postoperative ischemic colitis rate and postoperative anastomotic leakage rate of patients with laparoscopic radical resection of rectal cancer with preservation of LCA were recorded. The surgical efficacy and clinical significance of laparoscopic radical resection of rectal cancer with preservation of LCA were evaluated.
This trial is a multicenter randomized Phase III study to verify the superiority of short-course preoperative radiation (SCRT) and CAPOXIRI over SCRT and CAPOX as preoperative treatments for locally advanced rectal cancer.
The pilot research project is focused on the feasibility of a prehabilitation program for two groups of diagnoses (esophageal and stomach cancer, rectal cancer).
The study is a prospective, single-center, single-arm, two-cohort, phase II clinical trial. Patients aged 18 years or older who had pelvic recurrence rectal cancer with or without resectable distant metastasis, with treatment naive disease (cohort A) or progressive disease after first-line chemotherapy (cohort B), Eastern Cooperative Oncology Group performance status of 0-1, will receive 25-40Gy/5Fx irradiation or 15-30Gy/5Fx reirradiation (pelvic radiation history), 18 weeks toripalimab and investigator's choice of chemotherapy, and stereotactic ablative radiotherapy (SABR) for all metastatic lesions between chemoimmunotherapy cycles, followed by multidisciplinary team (MDT) for decision:follow-up of complete response (CR), radical surgery, sustained treatment of non resection, or exit. The primary endpoint was local objective response rate. Secondary endpoints were extrapelvic objective response rate, R0 resection rate, duration of response, progression-free survival, overall survival, and safety and tolerability of the treatment. Shanghai Junshi Biomedical Technology Co., Ltd. Provides the first three cycles of toripalimab for free and has purchased liability insurance for clinical trial subjects.
This phase II trial compares the effect of irinotecan versus oxaliplatin after long-course chemoradiation in patients with stage II-III rectal cancer. Combination chemotherapy drugs, such as FOLFIRINOX (fluorouracil, irinotecan, leucovorin, and oxaliplatin), FOLFOX (leucovorin, fluorouracil, oxaliplatin, and irinotecan ), and CAPOX (capecitabin and oxaliplatin) work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. FOLFOX or CAPOX are used after chemoradiation as usual treatment for rectal cancer. Giving FOLFIRINOX after chemoradiation may increase the response rate and lead to higher rates of clinical complete response (with a chance of avoiding surgery) compared to FOLFOX or CAPOX after chemoradiation in patients with locally advanced rectal cancer.
Rectal cancer still remains one of the most popular tumors, however, distance metastasis still remains as high as 30% and the long-term survival outcomes are still unsatisfying. The recent conception of total neoadjuvant therapy and immune therapy is becoming popular and the oncologic effects are encouraging, especially in terms of circulating tumor DNA (ctDNA), the prognostic value of ctDNA has been demonstrated by our prior study. This study will carry out accurate ctDNA-guided neoadjuvant therapy on the basis of previous studies of the research group, and give appropriate treatment plans and treatment intensity to patients with different disease degrees. At the same time, combined with the latest progress in clinical diagnosis and treatment, the potential beneficiaries of immunotherapy were screened scientifically, and the combined immunotherapy was implemented accordingly.
The management of rectal cancers has changed over the past decades towards a multidisciplinary strategy, combining radiotherapy, chemotherapy, and surgery. Local recurrence rates, dropped to less than 6 % with pre-operative radiotherapy and the standardization of total mesorectal excision (TME), at the price of increased peri-operative morbidity and functional sequelae. Since neoadjuvant treatment achieves up to 30 % complete response, organ preservation has been increasingly debated for good responders. With the introduction of better-quality imaging for tumour visualization and treatment planning, a new targeted radiation treatment was introduced with high dose rate endorectal brachytherapy (HDRBT), developped by Dr Te Vuong's team in Montreal. This treatment allows for radiotherapy dose escalation to increase the complete response rate, and subsequently the rate of patients amenable to rectal preservation. This phase 2 trial study is proposed to assess the feasibility of HDR brachytherapy after standard chemoradiotherapy among patients selected for rectal preservation.
This is an open-label, non-randomized, Phase 1b/2 study to determine the safety and tolerability of NC410 when combined with a standard dose of pembrolizumab. This study will also assess the clinical benefit of combination therapy in participants with advanced unresectable and/or metastatic ICI refractory solid tumors OR ICI naïve MSS/MSI-low solid tumors
This study aims to evaluate the efficacy and safety of an organ-sparing strategy after neoadjuvant chemoradiotherapy followed by transanal endoscopic microsurgery （TEM） or endoscopic local resection for early low rectal cancer（cT 1-3N0M0）.Besides, the clinical complete response rate and near-clinical complete response rate, organ preservation rate, local recurrence rate, distant metastasis rate and quality of life （QoL） will also be assessed.
The study evaluates the combination of immunotherapy of PD-1 antibody and neoadjuvant short-course radiotherapy in early low rectal cancer. A total of 34 patients will receive 5*5Gy short-course radiotherapy, followed by 4 cycles of capecitabine plus oxaliplatin (CAPOX) chemotherapy and PD-1 antibody, finally receive the local excision(TEM) or total mesorectal excision (TME). The rate of complete response (CR, pCR + sustained cCR for ≥ 1 year), Organ retention rate, long-term prognosis, and adverse effects will be analyzed.