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Completed Phase 4 Interventional Results available

Evaluating The Safety And Clinical Efficacy Of Elderberry Extract In Patients With Influenza

ClinicalTrials.gov ID: NCT03410862

Public ClinicalTrials.gov record NCT03410862. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 19, 2026, 11:21 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Phase IV Study Evaluating The Safety And Clinical Efficacy Of Elderberry Extract In Patients With Influenza: A Randomized, Double-Blind Placebo-Controlled Trial

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This research is being done to determine if an extract of cooked elderberries will help decrease the duration and severity of influenza symptoms in patients with confirmed influenza. Involvement in this study requires an initial patient screening at the time of their Emergency Department visit in order to confirm eligibility for the study. Once patients have been consented and enrolled as a participant, they will be randomized to take by mouth either Elderberry Extract or a placebo (a similar appearing and tasting liquid without elderberry) for a duration of 5 days. Study information regarding medication adherence, body temperature, symptoms, severity of symptoms, and any possible side effects will be collected from daily phone surveys conducted by the study coordinator. Participation in the study will end after at least 5 days once the patient has not had a temperature above 100°F and has had no influenza symptoms for at least 24 hours, or after 21 days in the study, whichever occurs first.

Study identification

NCT ID
NCT03410862
Recruitment status
Completed
Study type
Interventional
Phase
Phase 4
Lead sponsor
michael macknin
Other
Enrollment
87 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
5 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jan 28, 2018
Primary completion
Jun 24, 2019
Completion
Jun 24, 2019
Last update posted
Jan 18, 2021

2018 – 2019

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Cleveland Clinic Cleveland Ohio 44195

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03410862, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jan 18, 2021 · Synced Sep 19, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03410862 live on ClinicalTrials.gov.

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