- Participants if using oral corticosteroids (compounds, usually hormonal, taken orally [by mouth] in order to block ovulation [discharge of an egg from the ovary] and prevent the occurrence of pregnancy [carrying an unborn baby]), must be on a stable dose of less than or equal to 10 mg per day of prednisone or another oral corticosteroid for at least 4 weeks before the first dose of study medication and continue with the same dose throughout the study. If not using corticosteroids at study initiation, the participant must have not received any oral corticosteroids for at least 4 weeks before the first dose of study medication