Genome-wide analysis and characterization of an online sarcoma cohort.

10097 Background: Recruitment of an adequately sized cohort for genome-wide studies presents a serious challenge for rare diseases such as sarcoma. Traditional barriers to participation include proximity of clinical centers and motivation or ability to travel. 23andMe’s web-based platform provides increased accessibility to research participation, facilitating rapid recruitment of patients (pts) and enabling a large-scale genome-wide association study (GWAS) of sarcoma. Methods: Sarcoma pts were recruited through web and email campaigns, patient advocacy groups, physician offices, and events. Pts provide IRB-approved consent, complete surveys, and receive updates about research progress through an online account. In collaboration with an uncompensated panel of academic experts, an online survey was developed to collect patient-reported data on diagnosis, family history, symptoms and treatment. Results: This web-based approach has accrued the largest genotyped, recontactable sarcoma cohort to date. In 20 m...