• Matthew J Meyer, Anne B Stanislaus, Jarone Lee, Karen Waak, Cheryl Ryan, Richa Saxena, Stephanie Ball, Ulrich Schmidt, Trudy Poon, Simone Piva, Matthias Walz, Daniel S Talmor, Manfred Blobner, Nicola Latronico, and Matthias Eikermann.
• Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.
• BMJ Open. 2013 Jan 1;3(8):e003262.

IntroductionImmobilisation in the intensive care unit (ICU) leads to muscle weakness and is associated with increased costs and long-term functional disability. Previous studies showed early mobilisation of medical ICU patients improves clinical outcomes. The Surgical ICU Optimal Mobilisation Score (SOMS) trial aims to test whether a budget-neutral intervention to facilitate goal-directed early mobilisation in the surgical ICU improves participant mobilisation and associated clinical outcomes.Methods And AnalysisThe SOMS trial is an international, multicentre, randomised clinical study being conducted in the USA and Europe. We are targeting 200 patients. The primary outcome is average daily SOMS level and key secondary outcomes are ICU length of stay until discharge readiness and 'mini' modified Functional Independence Measure (mmFIM) at hospital discharge. Additional secondary outcomes include quality of life assessed at 3 months after hospital discharge and global muscle strength at ICU discharge. Exploratory outcomes will include: ventilator-free days, ICU and hospital length of stay and 3-month mortality. We will explore genetic influences on the effectiveness of early mobilisation and centre-specific effects of early mobilisation on outcomes.Ethics And DisseminationFollowing Institutional Review Board (IRB) approval in three institutions, we started study recruitment and plan to expand to additional centres in Germany and Italy. Safety monitoring will be the domain of the Data and Safety Monitoring Board (DSMB). The SOMS trial will also explore the feasibility of a transcontinental study on early mobilisation in the surgical ICU.ResultsThe results of this study, along with those of ancillary studies, will be made available in the form of manuscripts and presentations at national and international meetings.RegistrationThis study has been registered at clinicaltrials.gov (NCT01363102).

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