NCT05387252

Brief Summary

Urgent vaccine development plus the characteristics of the coronavirus have caused the relatively more safety problems in COVID-19 vaccines than other classic vaccines and unavoidably raises more concerns among those who accept or consider to be vaccinated. Mulberry juice consists of a large amount of anthocyanin. The abnormally high interleukin-17A level is frequently seen in patients with inflammation status or diseases with inflammation features. Some specific anthocyanins can reduce cyclooxygenase and nitrogen oxide, and the pharmacological effect of the major anthocyanin in mulberry juice imitates that of interleukin-17A antagonists. These features make mulberry juice a potential crude material for reducing inflammation and pain induced by COVID-19 vaccinations. The investigators propose a randomized control trial to explore the dose-response effects of three different volumes of mulberry juice on the incidence and severity of COVID-19 induced side effects. The findings should be helpful for nutrition supplementation in COVID-19 vaccinations and may improve public coordination of COVID-19 vaccinations.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
93

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started May 2022

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 19, 2022

Completed
5 days until next milestone

First Posted

Study publicly available on registry

May 24, 2022

Completed
7 days until next milestone

Study Start

First participant enrolled

May 31, 2022

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2022

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2023

Completed
Last Updated

May 24, 2022

Status Verified

May 1, 2022

Enrollment Period

7 months

First QC Date

May 19, 2022

Last Update Submit

May 20, 2022

Conditions

Keywords

COVID-19Vaccine Adverse ReactionSide EffectInflammationPainMulberryIL-17

Outcome Measures

Primary Outcomes (2)

  • Change of body temperature

    Daily body temperature of each participant is recorded to obtain serial temperatures including body temperature before vaccination (first day) and body temperatures after vaccination (second, third, and fourth day).

    Up to four days

  • Number of participants with fever

    Event of 38 degrees celsius or above

    Up to four days

Secondary Outcomes (2)

  • Number of participants with sign cluster 1 (multiple choices)

    Up to three days

  • Number of participants with sign cluster 2 (multiple choices)

    Up to three days

Study Arms (3)

Low volume mulberry juice

EXPERIMENTAL

10 ml mulberry juice containing about 48 mg polyphenols

Dietary Supplement: Mulberry juice

Middle volume mulberry juice

EXPERIMENTAL

50 ml mulberry juice containing about 240 mg polyphenols

Dietary Supplement: Mulberry juice

High volume mulberry juice

EXPERIMENTAL

100 ml mulberry juice containing about 480 mg polyphenols

Dietary Supplement: Mulberry juice

Interventions

Mulberry juiceDIETARY_SUPPLEMENT

Mulberry is a common macrophanerophyte that can be found in fields or farms. Mulberry fruits contain a large amount of anthocyanins and a relatively small amount of pro-anthocyanins. The plant is easy to grow and the fruit price is low compared with other types of plants producing anthocyanins, and thus a reliable source for anthocyanin supplements. Current laboratory evidence has shown that specific anthocyanins can reduce inflammation status, and potentially thrombosis. One of the enzymes inhibited by specific anthocyanins is cyclooxygenase which catalyzes the synthesis of prostanoids, including thromboxane and prostaglandins. Moreover, a critical study has shown that cyanidin 3-O-glucoside, the main anthocyanin in mulberry fruit, is an allosteric regulator of interleukin-17A.

High volume mulberry juiceLow volume mulberry juiceMiddle volume mulberry juice

Eligibility Criteria

Age20 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Concious
  • Mentally capable
  • Can comunicate using Mendalin or Taiwanese dialet
  • Agree to join the current trial

You may not qualify if:

  • Unable to read the google sheets
  • dysphagia
  • \> 65 years

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

COVID-19InflammationPain

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract DiseasesPathologic ProcessesPathological Conditions, Signs and SymptomsNeurologic ManifestationsSigns and Symptoms

Study Officials

  • El-Wui Loh, PhD

    Taipei Medical University Shuang Ho Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

El-Wui Loh, PhD

CONTACT

Yun-Yun Chou, Msc

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Masking Details
The participants are told that they would receive a cup of mulberry juice in which the volume is randomized, without knowing the exact dose range.
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Participants are divided into three groups, namely, the low dose group (10 ml), middle dose group (50 ml), and high dose group (100 ml).
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

May 19, 2022

First Posted

May 24, 2022

Study Start

May 31, 2022

Primary Completion

December 31, 2022

Study Completion

May 31, 2023

Last Updated

May 24, 2022

Record last verified: 2022-05