IRCT20181030041500N2 IRCT 2019-07-08 Tehran University of Medical Sciences Beneficial effects of N-acetylcysteine on systemic lupus erythematosus disease activityand its associated complications Beneficial effects of N-acetylcysteine on systemic lupus erythematosus disease activityand its associated complications 2014-06-22 anticipated 80 Complete https://irct.ir/trial/35000 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Tools used in randomization was table of random numbers. 2-3 Systemic Lupus erythromatosis. Intervention 1: Control group: the patients continue standard drugs protocol. Intervention 2: Intervention group: the patients receive 1800 mg NAC ( made by osveh drug company, 600 mg tab ) for 3 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 Due to time shortage, I didn’t make decision yet