This is a multi-center prospective study designed to collect blood samples from transplant patients in order to improve Natera's method for determining allograft rejection status using the donor-derived cell-free DNA analysis, called Prospera.~Subjects who have had an organ transplant, who present at the clinic for a standard of care visit or consent for an extra research blood samples to be taken by mobile phlebotomy, meet the study's eligibility criteria and are willing to participate in this research, will be consented and enrolled in this study.~Subjects will provide at least one blood sample at study enrollment and up to three optional follow-up blood samples at future visits. Relevant medical data will also be collected for each patient enrolled.~Urine samples may also be collected at the above described time-points.~Up to 500 subjects over the age of 2 worldwide who meet the study eligibility criteria are expected to be enrolled in this study. The study includes adult, pregnant, and pediatric subjects.
This is a multi-center prospective study designed to collect blood samples from transplant patients in order to improve Natera's method for determining allograft rejection status using the donor-derived cell-free DNA analysis, called Prospera.