RT Journal Article SR Electronic T1 Position statement on ethics, equipoise and research on charged particle radiation therapy JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 572 OP 575 DO 10.1136/medethics-2012-101290 VO 40 IS 8 A1 Sheehan, Mark A1 Timlin, Claire A1 Peach, Ken A1 Binik, Ariella A1 Puthenparampil, Wilson A1 Lodge, Mark A1 Kehoe, Sean A1 Brada, Michael A1 Burnet, Neil A1 Clarke, Steve A1 Crellin, Adrian A1 Dunn, Michael A1 Fossati, Piero A1 Harris, Steve A1 Hocken, Michael A1 Hope, Tony A1 Ives, Jonathan A1 Kamada, Tadashi A1 London, Alex John A1 Miller, Robert A1 Parker, Michael A1 Pijls-Johannesma, Madelon A1 Savulescu, Julian A1 Short, Susan A1 Skene, Loane A1 Tsujii, Hirohiko A1 Tuan, Jeffrey A1 Weijer, Charles YR 2014 UL http://jme.bmj.com/content/40/8/572.abstract AB The use of charged-particle radiation therapy (CPRT) is an increasingly important development in the treatment of cancer. One of the most pressing controversies about the use of this technology is whether randomised controlled trials are required before this form of treatment can be considered to be the treatment of choice for a wide range of indications. Equipoise is the key ethical concept in determining which research studies are justified. However, there is a good deal of disagreement about how this concept is best understood and applied in the specific case of CPRT. This report is a position statement on these controversies that arises out of a workshop held at Wolfson College, Oxford in August 2011. The workshop brought together international leaders in the relevant fields (radiation oncology, medical physics, radiobiology, research ethics and methodology), including proponents on both sides of the debate, in order to make significant progress on the ethical issues associated with CPRT research. This position statement provides an ethical platform for future research and should enable further work to be done in developing international coordinated programmes of research.