Skip to main content
Rehabilitating Equipoise
Kennedy Institute of Ethics Journal (2003)
  • Paul B. Miller, University of Toronto
  • Charles Weijer, Dalhousie University

When may a physician legitimately offer enrollment in a randomized clinical trial (RCT) to her patient? Two answers to this question have had a profound impact on the research ethics literature. Equipoise, as originated by Charles Fried, which we term Fried's equipoise (FE), stipulates that a physician may offer trial enrollment to her patient only when the physician is genuinely uncertain as to the preferred treatment. Clinical equipoise (CE), originated by Benjamin Freedman, requires that there exist a state of honest, professional disagreement in the community of expert practitioners as to the preferred treatment. FE and CE are widely understood as competing concepts. We argue that FE and CE offer separable and, in themselves, incomplete justifications for the conduct of clinical trials. FE articulates conditions under which the fiduciary duties of physician to patient may be upheld in the conduct of research. CE sets out a standard for the social approval of research by institutional review boards. Viewed this way, FE and CE are not necessarily competing notions, but rather address complementary moral concerns.

  • Ethics Committees,
  • Research Ethics,
  • Physician-Patient Relations,
  • Randomized Controlled Trials
Publication Date
June, 2003
Publisher Statement
Dr. Charles Weijer is currently a faculty member at The University of Western Ontario.
Citation Information
Paul B. Miller and Charles Weijer. "Rehabilitating Equipoise" Kennedy Institute of Ethics Journal Vol. 13 Iss. 2 (2003)
Available at: