Children's Oncology Group

**Semantic type:** Organization

**Definition:** The Children's Oncology Group was formed by the merger of the four national pediatric cancer research organizations: the Children's Cancer Group, the Intergroup Rhabdomyosarcoma Study Group, the National Wilm's Tumor Study Group, and the Pediatric Oncology Group. The primary objective of the organization is to conduct clinical trials of new therapies for childhood cancer.