This course is dedicated to newly participating members (investigators, data managers, research nurses, etc.), and industry representatives. The purpose of this introductory workshop is to give guidance for participating in EORTC clinical trials activities. Participants will receive information about the functioning of the EORTC and about Trials methodology, investigator / site quality requirements and control, patient safety management, adequate data collection and pitfalls for reliable data. Furthermore you will be shown our on-line registration /randomization process and remote data capture system. It also provides an opportunity to visit the EORTC Headquarters and to have informal discussions with the Headquarters staff. Key topics include: study development at EORTC, trial methodology: introduction, investigator responsibilities, audit, patient safety: adverse events reporting, CRF development, data management, randomization and remote data capture at the EORTC. This course has been listed as one of the deliverables from the EU FP7-funded EurocanPlatform project. For information on EurocanPlatform visit: http://www.eurocanplatform.eu