I experimented with mine last year and no dice. Doesn't mean yours wouldn't though!
What do you have to lose?

IME it is only a spring bloomer, but I often cut mine back since the foliage got rather ratty looking at some point, and would regrow to look nicer if i cut it back. It also helped keep it from seeding around as much.

It won't rebloom ime but a good clipping keeps it neater. It's a bit of a thug.

Agreed with all of the above. You can deadhead it by grabbing the spent stems and just pulling it out. This also lets you keep the plant in bounds a bit. If you've got tons of it, you can weed whack the old flowers. Whatever you do, don't feel compelled to baby it. It goes through a bit of an ugly phase post-bloom, but it bounces back fast to be a pleasing mat of soft foliage for the rest of the year. It's one of the few seedy plants that I'll still allow here.