I am John, a patient of Dr. Michael Earley at Johns Hopkins, Baltimore, MD, USA and have had two of the iron infusion treatments for RLS. I have experienced RLS since 1991 and had all of the possible drugs. I have benefited from the infusions, but have not been among the fortunate 33% who experienced the best outcome. The research at Johns Hopkins has great promise. As most of you know, RLS has a strong genetic component and their research will most certainly benefit future generations.
In the US, RLS folks join the RLS Foundation, a very helpful organization (tips, latest info, etc.). If you have not explored, I strongly, again very strongly, suggest that you do. I am not an officer, just someone with severe RLS.
The Foundation will have a webinar with Dr. Earley concerning the relationship between RLS and iron on January 25.
You may wish to check it out.
Wishing you good sleep in 2018.