RecruitingDrug trialApatinib in the Treatment of Recurrent Atypical/malignant Meningioma in AdultsApatinib mesylate may be an effective treatment for recurrent atypical/malignant meningioma. This prospective clinical study is now planned to verify the effectiveness and safety of apatinib mesylate in the treatment of relapsed atypical/malignant meningioma.