Hayakawa 2020.

Study name	Restrictive Transfusion Strategy for Critically Injured Patients (RESTRIC)
Methods	RCT (multicentre; cluster)
Participants	Severe trauma Estimated enrolment: 22 hospitals; n = 400
Interventions	Transfusions to target Hb 7 g/dL to 9 g/dL vs 10 g/dL to 12 g/dL
Outcomes	Survival at 28 days
Starting date	2019
Contact information	Mineji Hayakawa; mineji@dream.com
Notes	Trial registration (prospective): UMIN000034405 Funding: supported in part by research grants from The General Insurance Association of Japan and The Marumo Emergency Medical Research Promotion Fund (Japan)