Clinical Trial for the Prevention of Vasovagal Syncope

Summary

The main question in the study is whether people taking fludrocortisone are less likely to faint than people taking an inactive pill called a placebo. Fludrocortisone is a drug that stimulates the body to retain salt and water. The investigators know from some studies that it might prevent people from fainting at home and in the community, while they are carrying on with their lives. There is some evidence that salt and water retention help prevent fainting, but no one has a clear idea about whether this is true. This study will try to determine if that is true.

Timeline

Start

2005-05

Primary completion

2011-07

Completion

2011-07

Outcome

Missed primary endpoint

paper The study did not meet its primary objective of demonstrating that fludrocortisone reduced the likelihood of vasovagal syncope by the specified risk reduction of 40%. PMID 27364043 ↗

Publications

• Tan VH, Ritchie D, Maxey C, Sheldon R; POST Investigators. Prospective Assessment of the Risk of Vasovagal Syncope During Driving. JACC Clin Electrophysiol. 2016 Apr;2(2):203-208. doi: 10.1016/j.jacep.2015.10.006. Epub 2015 Nov 17.
• Sheldon R, Raj SR, Rose MS, Morillo CA, Krahn AD, Medina E, Talajic M, Kus T, Seifer CM, Lelonek M, Klingenheben T, Parkash R, Ritchie D, McRae M; POST 2 Investigators. Fludrocortisone for the Prevention of Vasovagal Syncope: A Randomized, Placebo-Controlled Trial. J Am Coll Cardiol. 2016 Jul 5;68(1):1-9. doi: 10.1016/j.jacc.2016.04.030.
• Raj SR, Rose S, Ritchie D, Sheldon RS; POST II Investigators. The Second Prevention of Syncope Trial (POST II)--a randomized clinical trial of fludrocortisone for the prevention of neurally mediated syncope: rationale and study design. Am Heart J. 2006 Jun;151(6):1186.e11-7. doi: 10.1016/j.ahj.2006.03.013.

Drugs

Indications