This study is called a screening study and the purpose of this study to find better ways to diagnose and treat leukemia that has come back after treatment or difficult to treat. Bone marrow, blood, and medical information about cancer and treatment will be collected. The results from this screening study may give other information about leukemia that is…
The purpose of this study is to learn more about the effects of the combination of telaprevir peginterferon alfa2b (Peg-IFN) and ribavirin (RBV) in children with chronic hepatitis C. Investigators will look at how these study drugs may affect childrens bodies and how children break down and eliminate telaprevir. Participants of this study will receive Peg-…