The primary goal of this study is to determine if oxandrolone is safe and tolerated well in newborns with single ventricle heart defects who have undergone a Norwood procedure. We expect to enroll approximately 100 children in this research study across 10 medical centers in the United States and Canada.
Click on a pin to see study site location details
We know that babies with hypoplastic left heart syndrome (HLHS) commonly struggle to grow and gain weight. We also know that growth failure is related to worse outcomes. The main reason for this research study is to learn if a medicine called oxandrolone is safe and well tolerated in babies with HLHS or other related single right ventricular (RV) anomalies who have undergone a Norwood procedure.
Oxandrolone is an anabolic steroid. It is used in the U.S. as a therapy to help prevent weight loss resulting from chronic infection, extensive surgery, and severe trauma. In children it has been used to treat severe burns and children at risk for short stature. We want to see if it will also help babies with HLHS to grow better after the Norwood procedure.
In Oxandrolone Perceptions, participants and their families are invited to complete a questionnaire about their experiences being in the study.
Neonates up to 14 days old with hypoplastic left heart syndrome or other single right ventricular anomalies who have undergone a Norwood procedure and do not meet any of the study exclusion criteria.
Study duration is approximately 4-6 months.
We cannot promise any benefits to your child or others from your taking part in this research. When we finish the study, we hope to know more about growth in children with HLHS and other single RV anomalies. This may help other children born with heart defects in the future. Benefits for providing a blood sample for the optional biobank: There is no known direct benefit from providing a sample for the biobank. However, the sample that you allow your child to give may help researchers to learn more about the link between genetic and other factors and long-term outcomes for children and adults with heart defects and other conditions.
Oxandrolone is generally well tolerated in infants and children. Most of the side effects are rare and typically disappear once the medicine is stopped or the dose is decreased.
Participation in research is completely voluntary. You can decide to allow your child to participate or not to participate.
Instead of being in this research study, your child can receive the care that this hospital regularly provides to support the growth of babies with your child’s condition between surgeries. The study doctor and your child’s care team can talk to you more about the standard of care here at this hospital.
You may choose not to allow your child to provide a blood sample for the biobank. Your child can still participate in the Oxandrolone study without providing a sample for the biobank.
There will be no extra costs to you if your child is in this study. If your child is randomized to receive oxandrolone therapy, the medication will be paid for by the study. Your insurance will not be billed for any research-related intervention, tests or measurements such as the DXA. You are responsible for costs related to your baby’s normal medical care, such as your baby’s surgeries, hospital stays, medicines, lab tests, and doctor’s fees.