NCT03309579.

Study name	Aneurysmal SubArachnoid Hemorrhage ‐ red blood cell transfusion and outcome (SAHaRA)
Methods	RCT (multicentre; international; pragmatic)
Participants	Adults with aneurysmal subarachnoid haemorrhage Estimated enrolment: 740 (including participants enrolled in earlier pilot (NCT02483351)) NCT02483351 is now complete; participants' results will be published when the main trial reports, not separately
Interventions	Liberal vs restrictive threshold (10 g/dL vs 8 g/dL)
Outcomes	Primary outcome: modified Rankin scale (for measuring functional outcome in stroke) Mortality will be reported at 12 months
Starting date	2018
Contact information	Shane English; senglish@toh.ca
Notes	Trial registration (prospective): NCT03309579 Funding: supported by a Transfusion Science research grant awarded by a Canadian Blood Services and Health Canada in partnership with CIHR Institute of Circulatory and Respiratory Health (Canada)