Yes, you can. I would advise that if you plan to take the OAT soon and if you're ready to submit your application, just apply early. Submit your scores as soon as possible after. I got an interview at ICO without my scores submitted and just sent it to them after. I know not all schools do this though, I only know ICO that interviews without scores. I think there's one more school that also interviews without scores but forgot where that was.