NCT05435144

Brief Summary

The purpose of this study is to confirm and quantify the effects of ElderCraft® elderberry extract on immune health.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
420

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Aug 2022

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

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

June 22, 2022

Completed
6 days until next milestone

First Posted

Study publicly available on registry

June 28, 2022

Completed
2 months until next milestone

Study Start

First participant enrolled

August 26, 2022

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 28, 2023

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2023

Completed
Last Updated

October 12, 2022

Status Verified

October 1, 2022

Enrollment Period

7 months

First QC Date

June 22, 2022

Last Update Submit

October 10, 2022

Conditions

Keywords

elderberryanthocyanins

Outcome Measures

Primary Outcomes (4)

  • Incidence of Upper Respiratory Symptomatic Days

    Total number of days with upper respiratory symptoms during the 90 day intervention. Symptoms are measured using the Franklin Immune Scale, which measures the severity of 50 symptoms. Scores range from 0 (symptom not present) to 5 (symptom is severe), with higher scores indicating greater severity.

    13 weeks

  • Incidence of Upper Respiratory Events

    Total number of upper respiratory events during the 90 day intervention. An event is classified as a series of continuous days with upper respiratory symptoms.

    13 weeks

  • Duration of Upper Respiratory Events

    Total number of days per upper respiratory event. An event is classified as a series of continuous days with upper respiratory symptoms.

    13 weeks

  • Symptom Severity

    Average daily symptom score on the Franklin Immune Scale which measures the severity of 50 symptoms. Scores range from 0 (symptom not present) to 5 (symptom is severe), with higher scores indicating greater severity.

    13 weeks

Secondary Outcomes (10)

  • Incidence of COVID-19

    13 weeks

  • Duration of COVID-19

    13 weeks

  • Severity of COVID-19

    13 weeks

  • Incidence of influenza

    13 weeks

  • Duration of influenza

    13 weeks

  • +5 more secondary outcomes

Other Outcomes (2)

  • Digestive Health

    baseline and 13 weeks

  • Adverse Events

    13 weeks

Study Arms (2)

Intervention Arm

EXPERIMENTAL

Participants will receive a 13-week supply of ElderCraft® (European black elderberry extract standardized to 15% anthocyanins). Each capsule contains 300mg of extract; participants will take a total of two capsules each day.

Dietary Supplement: Elderberry

Placebo Arm

PLACEBO COMPARATOR

Participants will receive a 13-week supply of inert placebo capsules matched for polysaccharide content. Participants will take a total of two capsules each day.

Other: Placebo

Interventions

ElderberryDIETARY_SUPPLEMENT

European black elderberry extract

Also known as: ElderCraft, Sambucus nigra
Intervention Arm
PlaceboOTHER

Inactive placebo

Placebo Arm

Eligibility Criteria

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

You may qualify if:

  • Provision of signed and dated informed consent form
  • Stated willingness and demonstrated ability to comply with all study procedures and availability for the duration of the study
  • Aged 20-65
  • Lives in the United States within driving distance of the research center
  • In good general health as evidenced by medical history
  • BMI \<31
  • Ability to take oral supplements and willing to commit to taking 2 capsules a day for 3 months
  • For females of reproductive potential: use of highly effective contraception for at least 1 month prior to screening and agreement to use such a method during study participation and for an additional month after the end of the intervention period
  • Employed full time in an occupation with direct and prolonged exposure to the public (i.e. teacher, healthcare provider, etc) or regularly engaged in high exposure activities.
  • Agreement to adhere to Lifestyle Considerations throughout study duration

You may not qualify if:

  • Current use of the following pharmaceuticals: immunosuppressants
  • Pregnancy, trying to conceive or breastfeeding
  • Organ transplant recipient
  • Known allergic reactions to elderberries
  • Positive COVID-19 test within 180 days of the study period
  • COVID vaccine of any type scheduled during the intervention period or the week prior to the start of the study
  • Receipt of 4+ COVID-19 vaccines
  • Current diagnosis or lifetime history of an autoimmune condition (including but not limited to Lupus, Addisons, Graves, Hypothyroidism, Multiple Sclerosis, or Type 1 Diabetes) OR cancer OR chronic kidney disease OR chronic liver disease OR chronic lung disease (i.e. COPD, pulmonary embolism) OR cystic fibrosis OR severe heart disease (i.e. heart failure, coronary artery disease, cardiomyopathy) OR HIV infection OR immunocompromised status OR sickle cell disease OR tuberculosis
  • Recent dramatic weight changes (10% change in body weight in the last 6 months)
  • Existing usage of a polyphenol-based supplement, including but not limited to elderberry, cranberry, bilberry, quercetin, or resveratrol.
  • Existing usage of an immune supporting supplement such as echinacea, probiotics, elderberry, or any other dietary supplements marketed as immune support.
  • Routine dietary consumption of high levels of polyphenols or anthocyanins as determined by dietary intake questionnaire.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Franklin Health Research Center

Franklin, Tennessee, 37067, United States

RECRUITING

MeSH Terms

Conditions

Respiratory Tract InfectionsCOVID-19Influenza, HumanCommon Cold

Interventions

elderberry extract

Condition Hierarchy (Ancestors)

InfectionsRespiratory Tract DiseasesPneumonia, ViralPneumoniaVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesOrthomyxoviridae InfectionsPicornaviridae Infections

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 22, 2022

First Posted

June 28, 2022

Study Start

August 26, 2022

Primary Completion

March 28, 2023

Study Completion

June 30, 2023

Last Updated

October 12, 2022

Record last verified: 2022-10

Data Sharing

IPD Sharing
Will not share

Locations