Active clinical trials for "Rectal Neoplasms"

Preoperative radiotherapy in locally advanced rectal cancer increases the possibility of complete resection and anal sphincter preservation. However, a treatment period of from 5 to 6 weeks is an obstacle of proper surgical intervention. Also, radiotherapy itself is confronting challenges for maximizing the therapeutic effect and minimizing the side effects. Electro-hyperthermia is appropriate treatment method to solve these kinds of problems. In this clinical trial, therapeutic effect of the high-frequency electro-hyperthermia is to be verified during preoperative radiotherapy for locally advanced rectal cancer. The ultimate goal is to establish a safe and effective treatment protocol.

The study evaluate the addition of Irinotecan in neoadjuvant chemoradiation. Half of participants will receive capecitabine alone together with neoadjuvant CRT, followed by a cycle of XELOX, while the other will receive capecitabine and irinotecan during CRT, followed by a cycle of XELIRI. All participants will be scheduled to receive surgery 6-8 weeks after the completion of CRT, then 5 cycles of adjuvant chemotherapy of XELOX.

Background: Neoadjuvant chemoradiotherapy (CRT) and total mesorectum excision (TME) has become the standard therapy for the treatment of locally advanced rectal cancer (LARC) to reduce the local recurrence rate, however, no improvement of distant metastasis rate was observed, and the incidence of postoperative local recurrence and distant metastasis can reach more than 25%. It is still a challenge for us to improve the RO resection rate of locally advanced rectal cancer and reduce the incidence of local recurrence and distant metastasis.

This study is designed to assess the surgical, oncological and functional outcome of either the laparoscopic or trans-anal TME in management of mid and low rectal cancer.

The purpose of this study is evaluation of the safety and the efficacy of transanal total mesorectal excision in difficult case. Difficult case is defined as below; - If any one of the following (1 or 2 or 3) BMI: 30 or more Tumor size: more than 7cm in long diameter CRM: mesorectal fascia involvement or less than 1 mm on MRI

Patients with rectal cancer and resectable liver metastases receive short course radiotherapy(5Gy/f x 5f) to the pelvis and XELOX consolidating chemotherapy al least 4 cycles after 2 weeks.

Registry participants with advanced malignancy or myelodysplasia will have a sample of their tumor or tissue analysed for genetic alterations using next generation sequencing (NGS) performed in a lab that has been certified to meet a high quality standard. Treatments and outcomes will be reported to the registry to allow further understanding of how genetic differences can lead to better diagnosis and treatments.

The investigators conduct this study to evaluate the efficacy and adverse effect of salvage concurrent chemo-proton therapy (CCPT) with or without surgical resection in previously irradiated recurrent rectal cancer.

Compared to postoperative chemotherapy combined with radiotherapy, preoperative chemotherapy combined with radiotherapy shows higher sphincter preservation rate and lower local recurrence rate in locally advanced rectal cancer. The purpose of this study is to evaluate the response and prognosis of intraarterial chemoembolization and intravenous infusion chemotherapy in patients with rectal T3-T4 and/or N+ rectal cancer before operation.

This study is designed to test the efficacy and safety of Total Neoadjuvant Treatment plus SHR1210（an anti-PD-1 Inhibitor) for High-risk locally advanced Rectal Cancer, Meanwhile, screening effective Biomarker base on neoantigen.