Period until the progression of myelodysplastic syndrome 6 years (study treatment and follow up) [clinicaltrials_resource:b9af1fd35617b194adbdba026a743648]

To assess if treatment with Revlimid (Lenalidomide) extends the period until the progression to MDS of(5q) considered as transfusion independent, documented verification that the patient suffering from anemia due to MDS requires transfusion of at least 2 UCH/56 days (2 months) with a minimum follow up of 112 days (4 months). Revlimid will be compared to the current standard treatment for patients with low risk MDS associated with the loss of 5q without transfusion dependent anemia, which is the therapeutic abstention and monitoring until its progression.

Period until the progression of myelodysplastic syndrome 6 years (study treatment and follow up) [clinicaltrials_resource:b9af1fd35617b194adbdba026a743648]

To assess if treatment with Revlimid (Lenalidomide) extends the period until the progression to MDS of(5q) considered as transfusion independent, documented verification that the patient suffering from anemia due to MDS requires transfusion of at least 2 UCH/56 days (2 months) with a minimum follow up of 112 days (4 months). Revlimid will be compared to the current standard treatment for patients with low risk MDS associated with the loss of 5q without transfusion dependent anemia, which is the therapeutic abstention and monitoring until its progression.