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 (1S,2S,4R)-4-4-(1S)-2,3-dihydro 1H-inden-1-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.