Nope, your plant has done its job. You did well to actually get a few tomatoes growing indoors. Next year match the pot size to the plant; small plant small pot, grows bigger, roots start coming out of the bottom, transplant to a slightly larger pot. Too much soil, holds too much water, the little plant can't suck it up, dries by evaporation too slowly and root rot, other fungal diseases proliferate.
What kind of light have you been using? Need a real grow light, florescent. Keep harvesting tomatoes as soon as the tomatoes begin to ripen and finish on a dark, cool shelf and this helps the plant to set more flowers and make more tomatoes...and your plant will last longer. They are supposed to be perennial in the tropics, greenhouses, indoors with good light proper maintenance and should last at least 2 or 3 years. I've never grown tomatoes past one season. Mimicking seasonal natural day/night hours helps set fruit. Make sure you don't fertilize too heavily with nitrogen and pollination is more complicated in doors as well, did you manually pollinate?