Six thoroughbred trainers are among 12 trainers accused by the California Horse Racing Board of running horses that tested positive for a metabolite of cocaine.

Pete Pedersen, a Hollywood Park steward, said that five of the six thoroughbred trainers would be prohibited from running horses at Santa Anita - which begins its meeting Wednesday - until hearings are held. Some of the trainers have hearings before an administrative law judge scheduled in January, Pedersen said Thursday.Those five are John Russell, Blake Heap, Greg Martin, Tommy Richardson, Bill Stepp. The sixth thoroughbred trainer named, Deanna Cook, is not locally based.