A Randomized Controlled Study on the Effects of Tea Catechin Consumption on the Prevention of Influenza Infection in Healthy Adults
Sponsor study identifier
interventional
200
1 country
1
Study Start
November 2009
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
June 2010
Actual (reported)Study Completion
October 2010
Actual (reported)The Purpose of this study is to evaluate the effects of 5 months catechin consumption on the prevention of influenza infection.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
October 2010
Actual (reported)Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
October 29, 2009
Actual (reported)November 2009
Date type not reportedThis date has not been verified as actual or estimated.
November 5, 2009
Actual (reported)June 2010
Actual (reported)October 2010
Actual (reported)the incidence rates of influenza infection
Until 5 months consumption of the study capsules
the incidence rates of upper respiratory tract infections
Until 5 months consumption of the study capsules
the severity of the symptoms and the duration of the cold among incident cases
Until 5 months consumption of the study capsules
occurrence of the adverse events
Until 5 months consumption of the study capsules
Tea catechin extracts 540 mg/day, are consumed for 5 months.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
White Cross Nursing Home
Higashimurayama, Tokyo, 189-0021, Japan
Matsumoto K, Yamada H, Takuma N, Niino H, Sagesaka YM. Effects of green tea catechins and theanine on preventing influenza infection among healthcare workers: a randomized controlled trial. BMC Complement Altern Med. 2011 Feb 21;11:15. doi: 10.1186/1472-6882-11-15.
Hiroshi Yamada, MD, PhD
University of Shizuoka
First Submitted
October 29, 2009
First Posted
November 5, 2009
Study Start
November 2009
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
A Study to Evaluate the Safety and Immunogenicity of an Inactivated Split-virion Influenza A(H1N1) Vaccine
Contact the study team to confirm eligibility.
June 2010
Actual (reported)Study Completion
October 2010
Actual (reported)Last Updated
July 16, 2013
Record last verified: 2013-07
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Source: ClinicalTrials.gov.
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