New hope for stubborn coughs: NAC beats placebo in major trial
NCT ID NCT03843541
First seen Nov 01, 2025 · Last updated May 13, 2026 · Updated 25 times
Summary
This study tested whether a one-week course of intravenous N-acetylcysteine (NAC) helps adults with respiratory diseases cough up thick mucus more easily. 333 hospitalized patients in China received either NAC, an active comparator (ambroxol), or a placebo. Results showed NAC was superior to placebo in reducing mucus thickness and difficulty coughing it up by day 7.
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Locations
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Affiliated Hospital of Guangdong Medical University - Respiration
Zhanjiang, China
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Beijing Hospital
Beijing, China
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Beijing Tongren Hospital
Beijing, China
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Chengdu Fifth People's Hospital
Chengdu, China
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China-Japan Friendship Hospital
Beijing, China
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Deyang People's Hospital
Deyang, China
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First Hospital of Shanxi Medical University
Taiyuan, China
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General Hospital of Ningxia Medical University
Yinchuan, China
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Inner Mongolia Baogang Hospital
Baotou, China
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Inner Mongolia People's Hospital
Hohhot, China
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Jiangxi Pingxiang People's Hospital
Pingxiang, China
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Jilin Province People's Hospital
Changchun, China
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Jinhua city central hospital/Jinhua hospital ,School of Medicine,Zhejiang UNIVERSITY
Jinhua, China
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Minhang District Central Hospital
Shanghai, China
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Nanchang University-The Second Affiliated Hospital
Nanchang, China
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Nanjing First Hospital
Nanjing, China
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Peking University Shougang Hospital
Beijing, China
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Qingdao Municipal Hospital
Qingdao, China
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Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
Shanghai, China
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Shanghai General Hospital
Shanghai, China
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Shanghai Pulmonary Hospital
Shanghai, China
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Suining Central Hospital
Suining, China
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The First Affiliated Hospital of Chongqing Medical University
Chongqing, China
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The First Bethune Hospital of Jilin University
Changchun, China
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The First Hospital of Shanxi Medical University
Taiyuan, China
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The First People's Hospital of Zigong
Zigong, China
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Tongji Hospital, Tongji Medical College of Huazhong University Science and Technology
Wuhan, China
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West China Hospital, Sichuan University
Chengdu, China
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Wuxi Peoples' Hospital affiliated to Nanjing Medical University
Wuxi, No. 299, Qing Yang Rd., Wuxi City, Jiangsu, China
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Wuxi Peoples' Hospital affiliated to Nanjing Medical University
Wuxi, China
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Yangzhou First People's Hospital
Yangzhou, China
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Zhongda Hospital, Southeast University - Pulmonology
Nanjing, China
Conditions
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