IRCT20120605009948N8 IRCT 2019-10-13 Tabriz University of Medical Sciences the outcome of low dose and high-dose corticosteroid in the treatment of granulomatous mastitis Comparison of the outcome of low dose and high-dose corticosteroid in the treatment of granulomatous mastitis 2017-04-19 anticipated 30 Complete https://irct.ir/trial/42184 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: The patients are simply randomized to two groups through random number table; received a special code and are treated with own group treatment, Blinding description: Blinding will be as patients will randomly allocated to two treatment groups and each patient will receive sealed envelope named A or B including the defined treatment and patients will not be aware of the contents of the each envelope. Physician responsible for labeling the envelopes will not interfere with the study and other physician will asses the treatment outcome unaware of the contents of the envelopes. Data will present to statistical analyzers as A & B groups. They will be blinded about the intervention and placebo groups. N/A granulomatous mastitis. Intervention 1: Intervention group: Prednisolone will be administered 5 mg daily for two months. Intervention 2: Intervention group: Prednisolone will be administered 50 mg per day for 3 days, 25 mg for 3 days, 12.5 mg for 3 days and 5 mg daily afterwards till the end of two months. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is We have not yet set a conclusion