Active clinical trials for "Rectal Neoplasms"

The purpose of this study is to compare the feasibility, safety, and quality of life (QOL) in patients (pts) undergoing protective ileostomy closure after 2 weeks with a closure after 12 weeks.

In initially metastatic rectal carcinoma, a neo-adjuvant multi-drug chemotherapy is usually performed, followed by a pelvic chemoradiation. The surgical indications on both metastases and the pelvic site are then discussed: in the case where a complete (or near-complete) response (CR) of the rectal tumor is observed (10 to 40%), the local surgery may be omitted or poned ("wait-and-see") in a sphincter-sparing strategy, in order to minimize or avoid the surgical morbidity, to focus on metastatic disease by the continuation of chemotherapy, and to preserve a better quality of life. After 8 weeks of induction chemotherapy (mFolfox6 regimen, 4 cycles), the aim of our study is to optimize the chemoradiation step on the distal rectal tumor, thanks to Intensity-Modulated Radiotherapy (IMRT) with simultaneous integrated boost (SIB) (Phase-1 part of the study), concomitantly with oral capecitabine. According to a Fibonacci dose-escalation scheme, 3 radiation dose-levels are defined, up to the definition of the maximal tolerated dose (MTD), requiring the inclusion of a maximum of 20 patients. Further patients will be included at the recommended dose for phase-2 (RDP2) in a two-step phase-2 study, considering simultaneously as principal objective at 12 months, both the efficacy (local CR rate in the range of 10 to 25%) and the tolerance (pelvic radiation disease: grade 3-4 toxicities in the range of 30 to 10%). Overall 65 patients will be included in the phase-2 study at the RDP2 dose.

This phase I trial studies the side effects and best dose of ropidoxuridine and how well it works when added to the usual chemotherapy treatment (capecitabine) during radiation therapy for the treatment of patients with stage II-III rectal cancer. Ropidoxuridine may help radiation therapy work better by making cancer cells more sensitive to the radiation therapy. Chemotherapy drugs, such as capecitabine, 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. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. This study is being done to find out whether ropidoxuridine in addition to capecitabine and radiation therapy works better in treating patients with rectal cancer.

This study will help determine if a short course of radiation therapy is effective to treat rectal cancer in older patients. A shorter course of radiation treatment may be better tolerated than a longer course or surgery for the treatment of rectal cancer in the elderly.

The local recurrence of rectal cancer is one of the main problem that fail the treatment. The preoperative neoadjuvant (chemo)radiotherapy has been confirmed to reduce the local recurrence rate,especially in the advanced rectal cancer. However the local recurrence rate is low about 10-20% totally,and the integrity of the mesorectum after the operation and circumferential resection margin(CRM) are the most critical factor for the local recurrence.So that, the advanced rectal cancer patients with negative CRM and had a complete mesorectum excision,may not benefit from the neoadjuvant radiation.This trial was mainly focus on the resectable advanced rectal cancer patients whose preoperative stage was cT3/N+. These patients will be divided into the lower risk group and higher risk group according the preoperative CT,Endoscopic ultrasound, and MRI,and carrying out randomized trial in the two groups respectively.The purpose of this trial is to confirm whether the preoperative radiotherapy is necessary for all the advanced rectal cancer patients,identify the reason of the local recurrence,and finally help the making of the treatment decision for the advanced resectable rectal cancer.

This phase II trial studies how well Linifanib works in treating patients with advanced, refractory colorectal cancer expressing k-Ras mutations. Linifanib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.

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.

The investigators would like to test the safety and efficacy of intraoperative radiotherapy (IORT) in rectal cancer using the Photon Radiosurgery System (PRS).

This phase I trial is studying the side effects and best dose of cediranib maleate when given together with whole brain radiation therapy in treating patients with brain metastases from non-small cell lung cancer. Cediranib maleate may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth or by blocking blood flow to the tumor. Radiation therapy uses high-energy x-rays and other types of radiation to kill cancer cells and shrink tumors. Giving cediranib maleate together with radiation therapy may kill more tumor cells

This phase II trial is studying how well AZD0530 works in treating patients with previously treated metastatic colon cancer or rectal cancer. AZD0530 may stop the growth of tumor cells by blocking blood flow to the tumor and by blocking some of the enzymes needed for cell growth.