The purpose of this study is to evaluate how effective MEDI8897 is at preventing lung disease caused by Respiratory Syncytial Virus (RSV) and to evaluate the safety and tolerability of MEDI8897 in healthy infants compared with placebo. A placebo is a saline solution that looks like the study drug but it does not contain the active ingredient.

MEDLEY is a clinical study researching an investigational medication called MEDI8897, for babies at high risk for respiratory syncytial virus (RSV) disease. The study is looking to see how safe MEDI8897 is, and if it works as well as a medication, Synagis, already approved to protect against RSV.
Babies may be eligible for the study if they are in their first year of life and:
• were born prematurely (at 35 weeks or earlier) or have a heart or lung condition
• have not received any RSV preventive medication. Subjects will receive 5 monthly intramuscular injections throughout RSV season (October to March)

The TRANSFORM network is focused on improving child health outcomes in SC through research on conditions of highest priority for future generations. These include conditions like asthma, autism, diabetes, obesity and early childhood outcomes. To accelerate research study recruitment activities for future projects that TRANSFORM sites may participate in, the TRANSFORM network sites will create a research recruitment registry of families interested in volunteering for research. Participants will enter their own as well as their child(ren)'s information into the electronic registry which can be used to identify people to contact for future studies.

This is a prospective, randomized, open-label, Phase II, multi-center clinical trial for pediatric subjects with congenital or acquired heart disease who are on blood thinners. Subjects will be assigned by chance (2:1) to apixaban,vitamin K antagonist or low molecular weight heparin.

Recruitment will start first for subjects 2 years old to less than 18 years old.
Recruitment will then be followed by subjects 3 months to less than 2 years old.
Recruitment for subjects from 0 to less than 3 months of age will be delayed until study data for infants less than 3 years is available.

We will combine state-of-the-art brain imaging techniques in 140 Single Ventricle Reconstruction Trial (SVR) III patients and 100 control subjects with innovative brain connectome or "graph" analyses to determine if brain connectivity graph measurements will provide novel neuroimaging biomarkers for neurodevelopmental disabilities and improve our understanding of their inciting mechanisms in the SVR survivors. Only 6 of the SVR III patients and no controls will be enrolled at MUSC.