NCT01895231.

Trial name or title	A Study of intravenous iron isomaltoside 1000 (Monofer®) administered by infusions to iron‐deficient blood donors
Methods	Double‐blind, randomised controlled trial
Participants	100 female, adult, first‐time blood donors (some of whom are anticipated to have RLS) with serum ferritin < 30 ng/mL
Interventions	Iron isomaltoside 1000 mg IV infusion over 15 minutes
Outcomes	RLS symptoms
Starting date	June 2013
Contact information	Lars Lykke Thomsen
Notes	Registered at www.clinicaltrials.gov