Active clinical trials for "Rectal Neoplasms"

After resection of diseased segments of the large intestine, the continuity of the intestine has to be restored. This can be done by suturing or with so called stapling devices. In addition since 2 centuries compression rings are used to connect the intestine after resection. The NITICAR27 device is a novel compression anastomosis device. The investigators want to prove if this novel device can be compared to commonly used stapling devices concerning anastomotic leakage, bleeding and stenosis.

The pilot study is designed to investigate the value of Neo-adjuvant Tomudez in combination with radiotherapy in patients with inoperable or recurrent rectal cancer in terms of response rate and increasing the resectability of initially inoperable rectal cancer.

Determine if genotype-directed neoadjuvant chemoradiation, using information from the thymidylate synthase promoter polymorphism, result in a greater degree of tumor downstaging in high risk patients compared to historical controls.

The goal of this study is to learn how the treatment given to patients with recurrent rectal cancer affects their well being and quality of life.

Standard treatment for locally advanced cancer of the rectum is preoperative chemoradiotherapy with 5-Fluorouracil (5-FU) plus 4 cycles of postoperative chemotherapy with 5-FU. According to our previous study (CAO/ARO/AIO-94, published in the New England Journal of Medicine 2004; 351:1731-40) this treatment results in only 6% of local failures, yet, still 36% of all patients develop distant metastasis. Therefore, our new study (CAO/ARO/AIO-04) incorporates new drugs, i.e. 5-FU + oxaliplatin, in an effort to improve the control of distant metastases. It is our hypothesis that the rate of disease free survival will improve by 5 to 8% after 3 years of follow-up.

The goal of this clinical trial is to investigate total neoadjuvant therapy (TNT) using short course radiation therapy (SCRT) followed by full course of chemotherapy then surgery in locally advanced rectal cancer. The main questions it aims to answer are: Is total neoadjuvant treatment in this design safe & tolerable? Impact of this design on treatment related outcomes in terms of pathological and clinical responses.

This study proposeto integrate a variety of imaging quantitative indicators to establish a new MRI-based tumor response regression(mrTRG) classification method. The accuracy of the established mrTRG classification method according pathology TRG(pTRG) will be tested. The ability of the established mrTRG classification method to predict prognosis will also be tested.

This retrospective study aims to investigate whether initial imaging characteristics of rectal cancer on Magnetic Resonance Imaging (MRI) correlate with the underlying tumour pathology and oncological outcomes such as response to treatment. Using radiomic features, calculated using new high throughput analysis of previously acquired imaging, a statistically robust prognostic model will be created with the overall aim of developing imaging biomarkers.

The two surgical options for lower 1/3 rectal cancer is APR and sphincter sparing procedures. Intersphincteric resection is procedure to treat very low rectal cancer within 2 cm from the dentate line to avoid permanent colostomy,improves the quality of life with better genitourinary function. Neoadjuvant chemo-radiotherapy is routine for T3 cases.

Central South University in collaboration with Tianjin University developed the first domestically produced Chinese minimally invasive surgical (MIS) robot system which named "Micro Hand S" in 2013. This new MIS robot had been authorized to enter the clinical trial stage by the Ethics Committee of the Third Xiangya Hospital at Central South University. The Micro Hand S robot is safe and feasible in the preliminary study. However, the learning curve in low anterior resection for rectal resection with the Micro Hand S robot are unclear and whether the two surgical robots (Micro Hand S and da Vinci) shared a similar learning curve and the two robot can be trained simultaneously. Therefore, the investigators conduct this retrospective study to focus on this concern.