BOUDRY, Switzerland--(BUSINESS WIRE)--Celgene International Sàrl, a subsidiary of Celgene Corporation (NASDAQ: CELG), announced results from an investigational study evaluating REVLIMID (lenalidomide) in combination with rituximab in patients with treatment-naive chronic lymphocytic leukemia (CLL). These data were presented at the 53rd Annual Meeting of the American Society of Hematology in San Diego, CA.