BOUDRY, Switzerland--(BUSINESS WIRE)--Celgene International Sàrl (NASDAQ: CELG) announced that clinical data from a Phase I/II study evaluating the combination of REVLIMID® (lenalidomide) plus rituximab (R2) in relapsed/refractory mantle cell lymphoma (MCL), conducted by investigators at the MD Anderson Cancer Center in Houston, TX, were presented at the 11th International Conference on Malignant Lymphoma in Lugano, Switzerland.