美股盘前葛兰素史克跌0.4%，礼来、诺华制药跌0.5%，辉瑞跌0.7%，阿斯利康跌1.6%，赛诺菲跌1.7%，诺和诺德跌2.3%。消息面上，美国总统特朗普向全球17家最大的制药公司发送了信函，其中包括礼来、诺和诺德和辉瑞，敦促其将美国新药价格削减至其他特定国家支付的最低水平。特朗普要求各公司立即降低向医疗补助计划(Medicaid)收取的现有药品价格，并保证未来推出的药品价格与海外价格相当。
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