View clinical trials related to Rectal Neoplasms.
Filter by: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.
CSAR Trial's aim is to determine whether the transverse coloplasty pouch or the side-to-end anastomosis as rectal reservoir reconstruction offers the best functional results.
Clinical effect of neoadjuvant hierarchical treatment based on chemotherapy for T3-4N0-2M0 middle and lower rectal cancer
PRONAR trial aims to assess if treatment with organ preservation in stage II and III rectal cancer after a complete or almost complete response to neoadjuvant treatment is feasible and safe in our environment. The main objective of this project is to implement the organ preservation strategy in the treatment of rectal cancer in our environment within a clinical study that allows the analysis of its results in terms of survival. The secondary objective is to assess local relapse, distant relapse and quality of life.
A randomized study of 145 patients. Patients with a clinical T2-3 N0 rectal cancer will be randomized to two arms (arm A: standard chemoradiation (45 Gy in 25 with concomitant 5-FU or Xeloda chemotherapy) and an external beam boost of 9 Gy compared to arm B: standard chemoradiation (45 Gy in 25 with concomitant 5-FU or Xeloda chemotherapy) and followed by a brachytherapy boost of 30 Gy in 3 fractions).
The purpose of this study is to evaluate the efficacy and safety of neoadjuvant electrochemotherapy on locally advanced rectal cancer (UICC II-III) in an intended curative clinical setting, using an endoscopic electroporation device (EndoVE).
The purpose of this study was to evaluate the effect of concurrent capecitabine-based long-term radiotherapy followed by 4 cycles XELOX pre- a delayed TME compared with 6 cycles XELOX post- a Regular Timing TME in patients with high-risk rectal cancer defined by MRI.
The purpose of this study is the increase of resection rate of primary cancer in rectal after short course radiotherapy without interrupt chemotherapy schedule during the period of chemotherapy. Radiation therapy is followed by additional chemotherapy to prevent the progression of systemic metastasis, and to reduce the incidence of rectal carcinoma including metastasis.
Laparoscopy colon surgery is accepted worldwide in the recent years. But there is still argument on the effect of laparoscopy rectal surgery. Laparoscopy has advantages on showing the inferior mesenteric artery (IMA), protection of autonomic nerve, low rectal anastomosis, and total mesorectum excision. However, debate on the level of IMA ligation and debonding of splenic flexure never ends. This study is going to give a clear and definite answer to how and why surgeons should deal with the IMA in laparoscopy rectal surgery，base on the 3D reconstruction of IMA and identification of IMA perfusion types.
Rectal cancer, comprised of 30% of overall colorectal cancer cohort, is one of the leading cancers of Taiwan. In patients with advanced disease, the standard of care is concurrent chemoradiotherapy (CCRT) before surgery. After CCRT, the abscopal effect, a phenomenon that localized radiation not only destroys local tumor but also inhibits the growth of tumor at the remote site, has been observed. This effect is believed to be associated with tumor immune response. In addition, other immune checkpoint molecules, such as Programmed cell death-1(PD-1), Programmed cell death ligand-1 (PD-L1), and Cytotoxic T-Lymphocyte Associated Protein 4 (CTLA-4), have been reported associated with therapeutic outcome. However, after CCRT, more than 50% of patients were still either having persistent disease or developed distant metastasis. To improve therapeutic outcome of patients with rectal cancer, this project, thus, aims at exploring the evolution of factors that may affect the abscopal effect and immune checkpoint functions in tissues and in blood before and after CCRT.