Recurrent Colon Cancer

This clinical trial tests how well phytocannabinoids (cannabidiol [CBD] and tetrahydrocannbinol [THC]) work in reducing chronic chemotherapy-induced peripheral neuropathy (CIPN) in breast and colon cancer survivors. Neuropathy is the most common neurological symptom reported by cancer patients due to treatment. A variety of pharmacologic treatments have been evaluated to alleviate CIPN symptoms; however, no definitive treatment has been found to successfully treat all the symptoms of CIPN. Therefore, investigators continue to seek other possible treatment options including cannabis. Phytocannabinoids may be a particularly useful intervention for cancer patients given the limited effective treatments for CIPN. In addition, cannabis-based medicines have become tremendously popular as both cancer patients and clinicians are seeking therapies with fewer potential risks of dependency and other side effects. This trial is being done to provide cancer patients and clinicians with reliable information to help guide their use of phytocannabinoids to manage the tremendous distress and pain experienced by many cancer patients, which impacts their long-term quality of life.

This prospective study aims to assess the safety and feasibility of lymph node identification using bevacizumab-800CW in patients with cT1-3N0-2 tumours, using intravenous administration.

Tumor-related inflammation is one of the hallmarks of cancers in general. Innate immunity specifically is a common denominator which is involved in the pathogenesis of both thyroid carcinoma and colon carcinoma. To improve the patient's outcome and identify novel therapeutic targets, one needs a deeper understanding of the tumor-induced changes in the bone marrow myeloid progenitor cells. Furthermore, treatment of these cells by nanoparticles or other agents that induce a program of 'trained immunity' may be a novel way to re-educate myeloid cells and their bone marrow progenitors in thyroid carcinoma patients. Lastly, the investigators expect that this approach could be effective also in other cancers of which colon carcinoma is here proposed as an additional model.
The investigators hypothesize that by exposing myeloid cells or their progenitors to various agents that induce trained immunity (e.g. high-density-lipoprotein-methylene diphosphonate nanoparticles, recombinant and synthetic cytokines), these immune cells will undergo functional reprogramming to induce a tumor-suppressive phenotype. In the future, this could be explored as a novel immunotherapy for tumors that are refractory to conventional treatment.