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Three Arm Trial of Immune Effects of Echinacea

NCT01129128 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 67

Last updated 2012-06-21

Study results available
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Summary

The goal of this study is to determine if either of two, commercially available, Echinacea purpurea products stimulate the immune system. For the study, 60 healthy adults will be randomized to receive one of the two Echinacea purpurea products 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 either of the Echinacea products will have evidence of immune stimulation and those receiving placebo will not.

Conditions

  • Upper Respiratory Tract Infections

Interventions

BIOLOGICAL

Echinacea purpurea product

5 ml by mouth 3 times per day for 10 days

BIOLOGICAL

Echinacea purpurea product

1 ml by mouth 3 times per day for 10 days

BIOLOGICAL

Placebo

either 5 ml or 1 ml by mouth three times per day for 10 days

Sponsors & Collaborators

Principal Investigators

  • James A Taylor, MD · University of Washington

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
TRIPLE
Model
PARALLEL

Eligibility

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

Timeline & Regulatory

Start
2010-05-31
Primary Completion
2011-03-31
Completion
2011-03-31

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 NCT01129128 on ClinicalTrials.gov