Hi alawe,
Revlimid is the best drug for patients with the 5q del.
http://www.ncbi.nlm.nih.gov/pubmed/23432724
I have understood that it will be very expensive for you. I have never read anything about Thalidomide and the 5q del - I don't think it will work as well as Revlimid.
Kind regards
Birgitta-A