View clinical trials related to Organoids.
Filter by:This is a single-centre study based on the Simon 2-stage optimax design: 12 patients will be enrolled initially (Stage I), which will then be expanded to a further 13 patients (Stage II) if 3 or more patients enrolled in stage I of the study achieve an objective response with the chemotherapeutic agent selected by the drug screen assay. A total of 25 patients will be included in both stages of study. Patients enrolled on study will undergo a fresh biopsy of tumour lesion to obtain cells that will be used to generate patient-derived tumour organoids based on the Invitrocue technology. Organoids will then be subjected to a 10-drug panel screening including: 5-fluorouracil, carboplatin, cyclophosphamide, docetaxel, doxorubicin, gemcitabine, irinotecan, oxaliplatin, paclitaxel and vinorelbine. A further 5 drugs (etoposide, ifosfamide, methotrexate, pemetrexed and topotecan) will be screened if sufficient organoids are grown from the biopsy samples within the screening period. Physicians will be informed of the results, and choice of chemotherapy will be based on an IRS score of 70% or above. If more than 1 candidate drug with IRS of 70% or above is identified, the physician will exercise his/her discretion to select the most suitable drug based on patient's comorbidities and organ function.
Patients with locally advanced rectal cancer will receive biopsy before the standard treatment of neoadjuvant chemoradiation. The investigators are going to establish organoids model from the pre-treatment biopsies and expose organoids to irradiation and the same chemotherapy drugs. The sensitivity of irradiation and chemotherapy drugs will be tested in the organoids model. Here, the investigators will launch the observational clinical trial to validate whether the organoids could predict the clinical outcome in locally advanced rectal cancer patients underwent neoadjuvant chemoradiation.
The study has two objectives: 1. To obtain endoscopic and colonoscopic biopsies to harvest and culture intestinal crypts from human tissue to produce organoids. These organoids will be used to study the biology of innervated sensory epithelial cells. 2. to collect subject data relating to clinical management and demographic characteristics of patients undergoing upper endoscopy or colonoscopy to learn the mechanisms behind visceral hypersensitivity, and neurodegenerative diseases that may arise in the gut.