Maarten Cozijnsen

169 Addenda About the author About the author Martinus Arend (Maarten) Cozijnsen was born on the 12 th of January in Apeldoorn, the Netherlands. He completed his secondary school education at the Gymnasium Apeldoorn in the summer of 2004. Afterwards, he started with his medical training at the medical faculty of the Vrije Universiteit (VU) in Amsterdam. He graduated his ‘doctoraal examen’ in 2010 and finished his internships in 2012 after which he obtained his medical degree. In February 2013 he started with his PhD program at the department Pediatric Gastroenterology of the Erasmus Medical Center-Sophia Children’s Hospital in Rotterdam, under the supervision of Prof. dr. Johanna Escher and Dr. Lissy de Ridder of the department of pediatric gastroenterology and Dr Janneke Samsom of the Laboratory of Pediatrics. His PhD program focused on improving the treatment of children and adolescents with Crohn’s disease. He facilitated the start and was project manager of the investigator-initiated international multicenter randomized controlled trial ITSKids, financed by a research grand of The Netherlands Organization for Health Research and Development (ZonMw). Due to a low inclusion rate, he and his research team terminated ITSKids and initiated TISKids with additional support of Pfizer and Crocokids. Results of the primary endpoint are expected to be published in 2020. Besides starting and managing prospective trials, Maarten initiated and published a variety of research initiatives: retrospective case studies, (systematic) literature reviews, translational research, and developed and validated a clinical disease index. In 2017 he received the UEG National Scholar Award for best abstract for his abstract regarding the development and validation of the MINI-index. Between 2014 and 2016, Maarten was board member of the Young Initiative of Crohn and Colitis (Y-ICC), a national network for young scientists and physicians focusing on inflammatory bowel diseases. From July 2017 to June 2020, Maarten worked as a strategy consultant in healthcare at SiRM – Strategies in Regulated Markets – with a focus on medicines, medical specialist care and acute care. From June 2020, he works at Dutch Hospital Data as project leader to provide information products to hospital managers, healthcare workers and regulators.