Investigational New Drugs

, Volume 10, Issue 4, pp 239–253 | Cite as

Southwest Oncology Group standard response criteria, endpoint definitions and toxicity criteria

  • Stephanie Green
  • Geoffrey R. Weiss
Work of Special Interest


The Southwest Oncology Group, in cooperation with the National Cancer Institute and the other major cooperative oncology groups, has participated in the development of new toxicity criteria for reporting the results of cancer clinical trials. The new criteria (NCI Common Toxicity Criteria) respond to a recognized need to: (1) report toxicities consistently among cooperative groups, particularly for shared ‘intergroup’ clinical trials; (2) strive for comparability in toxicity reporting among clinical trials; and (3) recognize new toxicities accompanying new classes of anticancer treatment modalities. The Southwest Oncology Group has extended the toxicity criteria, incorporating additional new criteria for biological agents, radiation therapy, surgery, and hormonal agents. In addition, endpoint definitions and response criteria are discussed. These have been developed in response to previous uncertainties in clinical trials objectives, to limitations in the resolution of imaging methods, and to demands for greater rigor in response and endpoint definitions. Toxicity criteria, endpoint definitions, and response criteria are tabulated.

Key words

cooperative group toxicity criteria response criteria 


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Copyright information

© Kluwer Academic Publishers 1992

Authors and Affiliations

  • Stephanie Green
    • 1
  • Geoffrey R. Weiss
    • 2
  1. 1.Southwest Oncology Group Statistical CenterSeattleUSA
  2. 2.Department of Medicine, Division of Medical OncologyThe University of Texas Health Science Center at San AntonioSan AntonioUSA

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