Children's Oncology Group

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Children's Oncology Group

The Children’s Oncology Group (COG), a clinical trials group supported by the National Cancer Institute (NCI), is the world’s largest organization devoted exclusively to pediatric cancer research.[1] The COG conducts a spectrum of clinical research and translational research trials for infants, children, adolescents, and young adults with cancer.

Almost all centers that treat children with cancer in the US and Canada are part of the COG, which encompasses more than 200 centers in the United States, Canada, Switzerland, the Netherlands, Australia, and New Zealand. COG member institutions have multidisciplinary teams consisting of physicians, research scientists, nurses, psychologists, pharmacists and other specialists who use their specialty skills in the diagnosis, management and investigation of childhood cancer.[2]

The COG, with more than 7,500 experts worldwide, has nearly 100 active clinical-translational trials open at any given time. These trials include frontline treatment for many types of childhood cancers, studies aimed at determining the underlying biology of these diseases, and trials involving new and emerging treatments, supportive care, and survivorship. More than 90% of 13,500 children and adolescents diagnosed with cancer each year in the United States are cared for at Children’s Oncology Group member institutions.[2]

Spectrum of COG research[edit]

COG’s research studies encompass hematologic malignancies, solid tumors, central nervous system tumors, and rare cancers. Hematologic malignancies include the most common childhood cancer, acute lymphoblastic leukemia, as well as acute myeloid leukemia, non-Hodgkin lymphoma, and Hodgkin lymphoma. Pediatric solid tumors studied include neuroblastoma, tumors of bone (Ewing sarcoma, osteosarcoma), tumors of the kidney (Wilms' tumor), rhabdomyosarcoma and other soft tissue sarcomas. Central nervous system (brain) tumors are the second most common form of childhood cancer. COG conducts research in children with medulloblastoma, ependymoma, brainstem gliomas, low and high-grade gliomas, and germ cell tumors. The large multi-site structure of COG also allows it to conduct research into very rare childhood cancer including retinoblastoma, hepatoblastoma, and other tumors.[2]

In addition to disease specific research, COG conducts studies in developmental therapeutics (new cancer drug development), supportive care, epidemiology, stem cell transplantation, behavioral sciences and survivorship.[3]


The cooperative group system for clinical research began in 1955 with a consortium focused on childhood cancer research.[2][4][5] By the mid-1990s, there were nine groups funded by the NCI to conduct research in adults with cancer, and four cooperative groups funded focused on childhood cancer research. Two groups, the Children's Cancer Study Group (CCG) and the Pediatric Oncology Group (POG) studied a diverse array of childhood cancers, while two other groups, the Intergroup Rhabdomyosarcoma Study Group (IRSG) and the National Wilms Tumor Study Group (NWTS) were cancer-specific. In 2000, these four pediatric groups voluntarily merged to create the Children's Oncology Group.[2]

Research funding[edit]

The COG is primarily funded by the NCI, and receives additional funding from other granting agencies and from philanthropic sources ( Two major NCI grants provide core funding: the primary or Chair’s grant supports research operations and funds personnel at member institutions conducting research, and the statistics and data center grant supports these essential research functions.[6] Other key grants include the COG Phase 1 Consortium grant, supporting 21 COG institutions charged with early phase clinical trials,[7] and the Community Cancer Oncology Program (CCOP) grant.[8]

Impact of COG’s research[edit]

The COG and its predecessor organizations have had a pivotal role in transforming childhood cancer from a virtually incurable disease 50 years ago to one with a combined 5-year survival rate of 80% today. Since the merger, COG researchers have published well over one thousand research manuscripts in peer-reviewed scientific journals, and routinely present results of research at national and international meetings.[2] COG is widely recognized as the premier collaborative research organization, having enrolled more children with cancer on clinical trials than any other organization in the world.


  1. ^ "Pediatric Oncology Partnerships Are Models for Success". NCI Cancer Bulletin. 
  2. ^ a b c d e f O'Leary, M; Krailo M; Anderson JR; Reaman GH (2008). "Progress in Childhood Cancer: 50 Years of Research Collaboration, a Report from the Children's Oncology Group". Seminars in Oncology. 35: 484–493. doi:10.1053/j.seminoncol.2008.07.008. PMC 2702720free to read. PMID 18929147. 
  3. ^ Reaman, GH (2004). "Pediatric cancer research from past successes through collaboration to future transdisciplinary research". J Pediatr Oncol Nurs. 21 (3): 123–127. PMID 15296038. 
  4. ^ Bleyer, WA (1997). "The U.S. pediatric cancer clinical trials programmes: international implications and the way forward". Eur J Cancer. 33 (9): 1439–1447. doi:10.1016/S0959-8049(97)00249-9. PMID 9337687. 
  5. ^ Schilsky RL, McIntyre OR, Holland JF, Frei E (2006). "A concise history of the cancer and leukemia group B". Clin Cancer Res. 12 (11 Pt 2): 3553s–3555s. doi:10.1158/1078-0432.CCR-06-9000. PMID 16740784. 
  6. ^ Nass, SJ; Balogh E; Mendelsohn J (2011). "A National Cancer Clinical Trials Network: recommendations from the Institute of Medicine". Am J Ther. 18 (5): 382–391. doi:10.1097/MJT.0b013e3181ff7e23. PMID 21326081. 
  7. ^ "Cancer Therapy Evaluation Program (CTEP) Major Initiatives". National Cancer Institute. NCI Cancer Therapy Evaluation Program. 
  8. ^ "Community Clinical Oncology program Research Base". NCI Funded Research Portfolio. 

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