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Immunologic Effects of Echinacea

NCT00860795 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2018-05-01

Study results available
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Summary

The goal of this study is to determine if Echinacea purpurea stimulates the immune system. For the study, 20 healthy adults will be randomized to receive Echinacea purpurea or placebo for 10 days. Blood will be drawn to assess immune markers just before beginning the study medication, during the 10 day course of medication and after completing the course of medication. It is postulated that adults receiving the Echinacea will have evidence of immune stimulation and those receiving placebo will not.

Conditions

  • Upper Respiratory Tract Infections

Interventions

BIOLOGICAL

Echinacea purpurea

Echinacea purpurea 100 mg/ml, 25 ml daily in 2 divided doses for 10 days

DRUG

placebo

placebo 25 ml daily in 2 divided doses for 10 days

Sponsors & Collaborators

Principal Investigators

  • James A Taylor, MD · University of Washington

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
21 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2009-03-31
Primary Completion
2009-08-31
Completion
2009-08-31

Countries

  • United States

Study Locations

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Entities

Drugs
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00860795 on ClinicalTrials.gov