April 4 2005
. About the Radiation Therapy Oncology Group (RTOG) The Radiation Therapy Oncology Group (RTOG) is a clinical research component of the American College of Radiology (ACR), located in the ACR Philadelphia, PA office. RTOG is a multi-institutional international clinical cooperative group funded primarily by the National Cancer Institute. RTOG has over 30 years of experience in conducting clinical trials and is comprised of over 250 major research institutions in the United States and Canada. The group currently is conducting more than 40 active studies that involve radiation therapy alone or in conjunction with surgery and/or chemotherapeutic drugs or which investigate quality of life issues and their effects on the cancer patient. The American College of Radiology (ACR) is a national professional organization serving more than 32,000 radiologists, radiation oncologists, interventional radiologists and medical physicists with programs focusing on the practice of radiology and the delivery of comprehensive health care services. For more information on the RTOG, please visit .