The present invention relates to the field of oncology and provides compositions and methods for treating specific cancers, including non small cell lung cancer, breast cancer, thyroid cancer, pancreatic cancer, colon cancer, melanoma, hepatoma and adenocarcinoma. Particularly, compositions and methods involving administration, either simultaneously or sequentially, of pharmaceutical combinations comprising (S)-N-(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)-6-methoxyphenyl)-1-(2,3-dihydroxypropyl)cyclopropane-1-sulfonamide with other compounds, to patients suffering from cancer are described.