Unique ID issued by UMIN | UMIN000039533 |
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Receipt number | R000045039 |
Scientific Title | Effects of umesu phenolics on the prevention of common cold and influenza (placebo-controlled trial) |
Date of disclosure of the study information | 2020/02/21 |
Last modified on | 2020/02/19 14:00:01 |
Effects of umesu polyphenol on the prevention of common cold and influenza (placebo-controlled trial)
UPPCI
Effects of umesu phenolics on the prevention of common cold and influenza (placebo-controlled trial)
UPPCI
Japan |
common cold, influenza
Pneumology | Adult |
Others
NO
Umesu phenolics (UPs), industrially derived from a by-product of the mume fruit (Japanese apricot), are composed of hydroxycinnamic acid derivatives. UPs inhibit the multiplication of common cold and influenza viruses and have virucidal effects. We conducted a clinical trial to examine the effects of gargling with UPs on the incidence of common cold and influenza in healthy subjects.
Efficacy
Exploratory
Explanatory
Not applicable
The incidence and duration of common cold/influenza over the full 9-week trial period. The incidence and duration of common cold and influenza symptomatic days by week.
The incidence and duration of common cold and influenza symptoms(runny nose, sneezing, sore throat/throat discomfort (irritation), headache, cough, expectoration, fever, joint pain, and fatigue/malaise) over the full 9-week trial period. The incidence and duration of common cold and influenza symptoms by week.
Interventional
Parallel
Randomized
Individual
Double blind -all involved are blinded
Placebo
NO
NO
Institution is not considered as adjustment factor.
NO
Numbered container method
2
Prevention
Food |
Two groups: a group that gargled with granules containing UPs (UP group) and a group that gargled with granules not containing UPs (placebo group).
The 2 g/packet UP granules used in the present study contained 125 mg UPs and were dissolved in 100 mL water to achieve a gargle with a UP concentration of 1.25 mg/mL. The 2 g/packet placebo granules did not contain UPs. Participants gargled with the granules dissolved water three times a day for 9 weeks.
16 | years-old | < |
66 | years-old | > |
Male and Female
Halthy volanteers
Those with serious somatic disorders including cerebrovascular disease, ischemic heart disease, cancer, and diabetes mellitus, and those who were pregnant.
300
1st name | Takahiko |
Middle name | |
Last name | Mitani |
Wakayama University
Research Center for Food and Agriculture
640-8510
930 Sakaedani, Wakayama, Wakayama
+81-73-457-7562
tmitani@wakayama-u.ac.jp
1st name | Takahiko |
Middle name | |
Last name | Mitani |
Wakayama University
Research Center for Food and Agriculture
640-8510
930 Sakaedani, Wakayama, Wakayama
+81-73-457-7562
tmitani@wakayama-u.ac.jp
Wakayama University
The Kishu-Tanabe Ume Promotion Committee
Other
Japan
Wakayama University
930 Sakaedani, Wakayama, Wakayama
+81-73-457-7562
tmitani@wakayama-u.ac.jp
NO
2020 | Year | 02 | Month | 21 | Day |
N/A
Unpublished
N/A
300
After 9 weeks of gargling, common cold/influenza incidence in the UP group and placebo group were 13.3% and 13.6%, respectively, showing no significant difference. Gargling with UPs was estimated to significantly shorten the number of symptomatic days per incidence by approximately 3 days at 9 th week. The number of days on which sneezing occurred was significantly (p < 0.05) lower in the UP group.
2020 | Year | 02 | Month | 19 | Day |
The baseline characteristics of the participants are summarized as below. The two groups did not demonstrate any differences in sex, age, current illnesses, medical history (hypertension, diabetes, etc.), regular gargling (yes or no), or type of gargle used. Influenza vaccination was significantly less common in the placebo group.
The 300 participants, 149 were in the placebo group, while 151 were in the UP group. Five participants in the placebo group discontinued the trial due to circumstances unrelated to the trial itself (change of residence, change of job, etc.).
No notable adverse events were observed in either group during or after the trial period.
Outcomes consisted of the following: incidence and duration of common cold/influenza, and incidence and duration of common cold/influenza symptoms, i.e., runny nose, sneezing, sore throat/throat discomfort (irritation), headache, cough, expectoration, fever, joint pain, and fatigue/malaise. For incidence of common cold/influenza and their symptoms, the mean weekly incidence rate was used as an assessment indicator. For duration of common cold/influenza and their symptoms (symptomatic days), the mean number of days per week was used as an assessment indicator. These assessment indicators were compared between the placebo group and UP group for the overall 9-week period and on a weekly basis.
Completed
2016 | Year | 09 | Month | 29 | Day |
2016 | Year | 10 | Month | 27 | Day |
2016 | Year | 12 | Month | 01 | Day |
2017 | Year | 03 | Month | 31 | Day |
2020 | Year | 02 | Month | 19 | Day |
2020 | Year | 02 | Month | 19 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000045039
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