ScreenPlus: A Comprehensive, Flexible, Multi-disorder Newborn Screening Program

Soon after birth, all babies born in the United States have a newborn screening (NBS) test to check for certain medical conditions. All babies are screened, even if they appear healthy, because most of these conditions have no obvious physical findings in a newborn and might otherwise be diagnosed only after the development of serious problems, such as brain damage, organ damage, or death. In fact, NBS has been an integral part of preventable health care for over five decades, ever since the discovery that phenylketonuria is an easily diagnosed, preventable cause of intellectual disability.

Over the past two decades, there have been dramatic advances in screening technology, with a resulting increase in the number and complexity of disorders on NBS panels. This enhanced ability to screen brings questions about what types of disorders are appropriate for NBS. To that end, the Advisory Committee on Heritable Disorders in Newborns and Children (ACHDNC) was established in 2003 to make evidence-based recommendations at the national level regarding the suitability of various disorders for NBS. At present, the Recommended Uniform Screening Panel (RUSP) includes 35 core disorders. The RUSP nomination process uses information about disease incidence and severity, natural history, benefits of early detection, safety and efficacy of treatment, analytic and clinical validity of the screening tests, as well as consideration of potential harms associated with screening and public health impact to determine whether a particular disorder is appropriate for NBS. However, there are many disorders for which this data is insufficient or missing. There are other disorders that challenge traditional NBS criteria by having predominantly later-onset phenotypes, poorly defined natural history, or unclear treatment outcomes. As these potentially life-threatening disorders might benefit from early detection, gathering and analyzing this data is both critical and timely. Accordingly, there is a great deal of interest in pilot NBS studies as a means to gather objective evidence about whether a disorder is appropriate for widespread screening.

ScreenPlus is a comprehensive, fluid, pilot NBS program that will screen 100,000 consented infants for specific disorders that are under consideration for universal NBS. This study will generate critical data about the validity of testing for these candidate disorders and provide estimates of disease incidence in a large newborn population. The investigators will evaluate different consent and engagement models, including direct, in-person interaction and the use of an electronic consent framework to educate parents about pilot NBS. The investigators will also collect nuanced information about the ethical implications of NBS, by conducting qualitative interviews with parents of children who have received a positive or uncertain NBS result. Parents who are eligible to participate in ScreenPlus will also have the opportunity to complete a flexible set of surveys of parent opinions about expanded NBS, research using dried blood spots, and other relevant topics. Furthermore, newborns who screen positive will be followed by a ScreenPlus physician. Through thoughtful collaboration with disease experts, the investigators will help systematically collect disease specific measures through detailed long-term follow-up which will enable us to critically evaluate how affected children identified through ScreenPlus are faring, allowing objective assessment of the impact early diagnosis has on outcome.