On June 21st 2017, all ISOTIS partners involved in Work Package 2 (parent and child interview studies) held a data collection meeting in Leiden, the Netherlands. During this inspiring day, several topics on both the large-scale quantitative and in-depth qualitative parent interview study were discussed, which focuses on families’ resources, experiences, aspirations and support needs. Main topics were the recruitment and interview procedures, the data management plan and the specific focus of both studies. The work package leaders got valuable input to further develop the quantitative and qualitative parent interview study, which runs from October 2017 to March 2018. The child interview study is planned for the fall 2018.