This clinical trial focuses on studying the treatment of rectal cancer, a type of cancer that affects the last part of the large intestine. The study aims to explore the effects of a combination of treatments, including radiochemotherapy followed by consolidation chemotherapy. Radiochemotherapy involves using both radiation and chemotherapy to target cancer cells, while consolidation chemotherapy is additional treatment given to strengthen the initial therapy’s effects.
The medications used in this study include Oxaliplatin, Fluorouracil, and Calcium Folinate Pentahydrate. Oxaliplatin is administered as a solution for infusion, which means it is given directly into the bloodstream through a vein. Fluorouracil is provided as a solution for injection, also delivered intravenously. Calcium Folinate Pentahydrate is used as a solution for injection or infusion, supporting the other medications by reducing their side effects and enhancing their effectiveness.
The purpose of this study is to estimate the effect of the treatment regimen on locally advanced rectal cancer. Participants will undergo a series of treatments over a period of up to 12 months. The study will assess the response of the cancer to the treatment, aiming to understand how well the combination of therapies works in preserving the organ and controlling the disease. Some participants may receive a placebo, which is a substance with no active medication, to compare the effects of the actual treatment. The study is designed to gather information that could lead to improved treatment strategies for rectal cancer in the future.



Germany