Achieving Milestones as a Prerequisite for Proceeding With a Clinical Trial

BACKGROUND: Although the National Institutes of Health (NIH) invests $30 billion in research annually, many funded studies fail to generate results that can inform practice. The National Institutes of Health introduced a phased funding mechanism as one potential solution. Study-specific milestones are established for an initial pilot phase. We assess the utility of this phased approach through the ongoing Electroencephalography (EEG) Guidance of Anesthesia to Alleviate Geriatric Syndromes (ENGAGES) pragmatic clinical trial. The hypothesis of the trial is that EEG guidance of general anesthesia, through prevention of EEG suppression, can decrease postoperative delirium and its downstream negative sequelae. METHODS: In collaboration with study stakeholders, we identified critical milestones for the ENGAGES study, with themes common to many clinical trials. These themes include: regulatory tasks; enrollment targets; feasibility and impact of study intervention; primary outcome incidence; measurement reliability of primary outcome; and follow-up. Progress in achieving the milestones was assessed at regular intervals during the pilot phase by ENGAGES investigators, a National Institute on Aging program officer, and a nonpartisan research organization (Westat). RESULTS: Regulatory tasks, including institutional review board approval, infrastructure establishment, and trial registration, were completed on schedule. A total of 117 patients were randomized, exceeding the target by 51. The EEG-guided protocol was successfully implemented, and a relevant effect on anesthetic practice was demonstrated (decrease in median age–adjusted minimum alveolar anesthetic concentration from 0.93 to 0.78 [P

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