NCT01129128

Three Arm Trial of Immune Effects of Echinacea

3-arm Randomized Controlled Trial Assessing the in Vivo Effect of an Echinacea Purpurea on Immune Markers in Adults

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 67 (actual)
• Sponsor: University of Washington · Academic / Other
• Sex: All
• Age: 21 Years – 65 Years
• Healthy volunteers: Accepted

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

Type	Name	Description
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

Timeline

• Start date: 2010-05-01
• Primary completion: 2011-03-01
• Completion: 2011-03-01
• First posted: 2010-05-24
• Last updated: 2012-06-21
• Results posted: 2012-06-05

Locations

1 site across 1 country: United States