Evaluation of the Relationship Between ABCG2 Mutation and Teriflunomide Exposure and Safety in Chinese RMS Patients Treated With Teriflunomide 14 mg Once Daily for 24 Weeks

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Primary Objective: Evaluate the relationship between ABCG2 mutation (rs2231142) and teriflunomide exposure, during 6-month treatment with teriflunomide 14 mg Secondary Objective: Characterize the safety (AEs, such as ALT enhancement, hair thinning, diarrhea, nausea, etc.) during 6-month treatment with teriflunomide

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