A Trial of Lenalidomide & Azacitidine in Low Risk Myelodysplastic Syndromes

"lenalidomide 10 mg will be administered orally on Days 1-28 of each 28-day cycle. Patients who fail to achieve an erythroid response per 2006 IWG criteria after 3 cycles of monotherapy will receive lenalidomide at the same dose administered in cycle 3 and low-dose azacitidine25 mg/m2 subcutaneously (SC) or intravenously (IV) for 5 days (on Days 1-5) of every 28-day cycle.~Patients who fail to respond (2006 IWG criteria) after receiving two cycles of combination therapy will receive lenalidomide at the same dose administered in Cycle 3 and azacitidine 50 mg/m2 SC or IV given daily on Days 1-5 of each 28-day cycle, if no grade 4 toxicity developed or no delay greater than 2 weeks in starting a new cycle was experienced during the first 2 cycles of combination therapy."