Community treatment orders: clinical and social outcomes, and a subgroup analysis from the OCTET RCT Rugk asa J, Molodynski A, Yeeles K, Vazquez Montes M, Visser C, Burns T, for the OCTET Group. Community treatment orders: clinical and social outcomes, and a subgroup analysis from the OCTET RCT. Objective: Despite widespread use internationally, there is no convincing evidence that community treatment orders (CTO) (legal regimes making out-patient treatment compulsory), reduce readmission rates or have wider patient benefit. The primary and secondary outcomes of the Oxford Community Treatment Order Evaluation Trial (OCTET) (hospitalisation) showed no benefit. This article will, first, test the effect of community compulsion on wider clinical and social outcomes and on patients’ experiences of services and the use of treatment pressure and second, explore differential effects in different groups of patients. Method: OCTET is a RCT of CTO effectiveness. Three hundred and thirty-six patients were randomised and data for the 333 eligible patients were collected from interviews and medical records at baseline, 6 and 12 months. Results: There was no significant difference at 12 months between the two arms in any of the reported outcomes, except a small difference in patients’ view of the effectiveness of treatment pressure, which is unlikely to be clinically meaningful. Two statistically significant interactions were found in the subgroup analysis: symptoms interacted with age and with education, but no pattern was demonstrated. Conclusion: CTOs do not have benefit on any of the tested outcomes, or for any subgroup of patients. Their continued use should be carefully reconsidered. J. Rugk asa 1,2 , A. Molodynski 2,3 , K. Yeeles 2 , M. Vazquez Montes 4 , C. Visser 2 , T. Burns 2 , for the OCTET Group* 1 Health Services Research Unit, Akershus University Hospital, Lørenskog, Norway, 2 Department of Psychiatry, University of Oxford, Oxford, UK, 3 Oxford Health NHS Foundation Trust, Oxford, UK, and 4 National Institute for Health Research Oxford Biomedical Research centre and Nuffield Department of Primary Health Care Sciences, University of Oxford, Oxford, UK Key words: coercion; community psychiatry; psychotic disorders; randomised controlled trial Jorun Rugk asa, Health Services Research Unit, Akershus University Hospital, 1478 Lørenskog, Norway. E-mail: jorun.rugkasa@ahus.no *OCTET Group members are listed in Acknowledgements. Accepted for publication November 6, 2014 Signicant outcomes Compelling patients to adhere to treatment does not have patient benefits on the wide range of clini- cal and social outcomes reported, or for any prespecified subgroups. Our results are consistent with the accumulating body of research into the effectiveness of community compulsion: non-randomised studies show discrepant results while randomised studies consistently fail to find support for patient benefit. The use of community compulsion continues to increase internationally despite the lack of evidence for effectiveness. Our findings indicate an urgent review of the use of CTOs is needed. Limitations As the trial was powered for the primary outcome measure of hospital readmission, it is possible that differences in other outcomes or between subgroups might have been detected in a larger sample. The outcome ‘type of medication’ was not prespecified and the explorative analysis of this outcome should be interpreted with caution. There were a number of protocol violations as described, but per protocol analyses did not alter the primary findings. 1 Acta Psychiatr Scand 2014: 1–9 © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd All rights reserved DOI: 10.1111/acps.12373 ACTA PSYCHIATRICA SCANDINAVICA