1.Testing Trabectedin in Pediatric Patients (Posted: 06/30/2009) - In this phase I clinical trial, children with solid tumors that have either recurred or have not responded to previous treatment will be treated with trabectedin. 2.Helping Survivors of Childhood Cancer Quit Smoking (Posted: 03/24/2009) - In this study, adult survivors of childhood cancer who smoke and want to quit will be randomly assigned to one of two quitline-based strategies: counselor-initiated quitline consultations or self-paced quitline consultations. 3.Study of the Natural History of Neurofibromatosis Type 1 (Posted: 03/10/2009) - Researchers are conducting a long-term study of children and adults with neurofibromatosis type 1 and their healthy siblings to help gain a better understanding of the natural history of the disease and how to better detect and treat its symptoms. 4.New Strategy for Treatment-Resistant Solid Tumors in Children (Posted: 06/13/2006) - This clinical trial will assess the safety of of a drug called talabostat in combination with chemotherapy in pediatric patients with cancer who have not responded to or gotten worse after other treatments. 5.Chemotherapy for Recurrent or Treatment-Resistant Lymphomas (Posted: 07/26/2005) - In this trial, researchers are trying to determine whether a new drug called UCN-01 will help kill cancer cells in patients who have a type of lymphoma called anaplastic large cell lymphoma.