Jiejie Li1,2,3,4, Yilong Wang1,3,4, Hao Li1,3,4, Zhiyi Zuo5, Jinxi Lin1,3,4, Anxin Wang2,3,4, Xingquan Zhao2,3,4, Liping Liu2,3,4, Yongjun Wang1,2,3,4. 1. From the Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China (J. Li, Yilong Wang., H.L., J. Lin, A.W., X.Z., L.L., Yongjun Wang). 2. China National Clinical Research Center for Neurological Diseases, Beijing, China (J. Li, Yilong Wang., H.L., J. Lin, A.W., X.Z., L.L., Yongjun Wang). 3. Center of Stroke, Beijing Institute for Brain Disorders, China (J. Li, Yilong Wang., H.L., J. Lin, A.W., X.Z., L.L., Yongjun Wang). 4. Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, China (J. Li, Yilong Wang., H.L., J. Lin, A.W., X.Z., L.L., Yongjun Wang). 5. Department of Anesthesiology, University of Virginia Health System, Charlottesville (Z.Z.).
Abstract
OBJECTIVES: To investigate the relationship of homocysteine levels with the efficacy and safety of dual antiplatelet therapy in female and male patients. Approach and Results: The CHANCE trial (Clopidogrel in High-Risk Patients With Acute Nondisabling Cerebrovascular Events) randomized patients with acute minor ischemic stroke or high-risk transient ischemic attack toclopidogrel plus aspirin or aspirinalone from October 1, 2009, to July 30, 2012, in China. A subgroup of 3044 consecutive patients with baseline homocysteine levels from 73 (64%) prespecified clinical sites was analyzed. Participants were grouped by sex. Primary outcome was stroke recurrence within 90 days. Secondary outcomes consisted of composite vascular events and independent living or death. Safety outcome was any bleeding. Cox proportional-hazards models were used to assess the interaction of homocysteine levels with randomized antiplatelet therapy on efficacy and safety outcomes. A significant interaction between homocysteine levels and the randomized antiplatelet therapies was found on recurrent stroke after adjustment for confounding factors in women (P=0.010) but not in men (P=0.595). Compared with aspirin alone, clopidogrel plus aspirin significantly reduced the risk of recurrent stroke in women without elevated homocysteine levels (adjusted hazard ratio, 0.459 [95% CI, 0.271-0.776]; P=0.004). Such benefit disappeared in female patients with increased homocysteine level. No significant interaction on functional outcome or bleeding rate was observed. CONCLUSIONS:Homocysteine could be a potential biomarker to discriminate the effects of dual and single antiplatelet therapy in female patients with minor ischemic stroke or high-risk transient ischemic attack. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT00979589.
RCT Entities:
OBJECTIVES: To investigate the relationship of homocysteine levels with the efficacy and safety of dual antiplatelet therapy in female and male patients. Approach and Results: The CHANCE trial (Clopidogrel in High-Risk Patients With Acute Nondisabling Cerebrovascular Events) randomized patients with acute minor ischemic stroke or high-risk transient ischemic attack to clopidogrel plus aspirin or aspirin alone from October 1, 2009, to July 30, 2012, in China. A subgroup of 3044 consecutive patients with baseline homocysteine levels from 73 (64%) prespecified clinical sites was analyzed. Participants were grouped by sex. Primary outcome was stroke recurrence within 90 days. Secondary outcomes consisted of composite vascular events and independent living or death. Safety outcome was any bleeding. Cox proportional-hazards models were used to assess the interaction of homocysteine levels with randomized antiplatelet therapy on efficacy and safety outcomes. A significant interaction between homocysteine levels and the randomized antiplatelet therapies was found on recurrent stroke after adjustment for confounding factors in women (P=0.010) but not in men (P=0.595). Compared with aspirin alone, clopidogrel plus aspirin significantly reduced the risk of recurrent stroke in women without elevated homocysteine levels (adjusted hazard ratio, 0.459 [95% CI, 0.271-0.776]; P=0.004). Such benefit disappeared in female patients with increased homocysteine level. No significant interaction on functional outcome or bleeding rate was observed. CONCLUSIONS:Homocysteine could be a potential biomarker to discriminate the effects of dual and single antiplatelet therapy in female patients with minor ischemic stroke or high-risk transient ischemic attack. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT00979589.
Authors: Jung Oh Kim; Han Sung Park; Eun Ju Ko; Jung Hoon Sung; Jinkwon Kim; Seung Hun Oh; Ok Joon Kim; Nam Keun Kim Journal: J Pers Med Date: 2021-03-12
Authors: Maria Paola Lauretta; Rita Maria Melotti; Corinne Sangermano; Anneliya Maria George; Rafael Badenes; Federico Bilotta Journal: J Clin Med Date: 2022-01-13 Impact factor: 4.241