Disclosed are methods for the treatment of various solid tumors in patients in need of such treatment. The methods comprise administering to such a patient an NEDD8-activating enzyme (NAE) inhibitor such as (lS,2S,4R)-4-4-(lS)-2,3-dihydro1H-inden-l-ylamino)-7H-pyrrolo[2,3-d]-pyrimidin-7-yl)-2-hydroxycyclopentyl)methyl sulfamate (MLN4924) or a pharmaceutically acceptable salt in combination with one or more chemotherapeutic agents. Also disclosed are medicaments for use in the treatment of various solid tumors.