SPICE III

Design International RCT, n=4,000
Published 2019 (NEJM)
Result No difference in 90-day mortality between dexmedetomidine and usual sedation (29.1% vs 29.1%). Dexmedetomidine was associated with more bradycardia and hypotension.
Practice impact Dexmedetomidine is not recommended as a sole primary sedative; may be used selectively as an adjunct for agitation or delirium to facilitate weaning.

Source: The Bottom Line