- Conditions
- Ineffective Erythropoiesis
- Interventions
- Echinacea-based dietary supplement, Placebo
- Dietary Supplement · Drug
- Lead sponsor
- University of Georgia
- Other
- Eligibility
- 18 Years to 44 Years
- Enrollment
- 45 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2013
- U.S. locations
- 1
- States / cities
- Lubbock, Texas
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 1–6
of 6
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Common Cold
- Interventions
- Echinacea, Blinded placebo
- Dietary Supplement · Other
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 12 Years and older
- Enrollment
- 719 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2013
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Upper Respiratory Tract Infections
- Interventions
- Echinacea purpurea, placebo
- Biological · Drug
- Lead sponsor
- University of Washington
- Other
- Eligibility
- 21 Years to 65 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009
- U.S. locations
- 1
- States / cities
- Kenmore, Washington
- Conditions
- Acute Respiratory Infections
- Interventions
- Quick Defense, Placebo
- Dietary Supplement
- Lead sponsor
- Appalachian State University
- Other
- Eligibility
- 18 Years to 55 Years · Female only
- Enrollment
- 40 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2014
- U.S. locations
- 1
- States / cities
- Kannapolis, North Carolina
- Conditions
- Upper Respiratory Tract Infections
- Interventions
- Echinacea purpurea product, Placebo
- Biological
- Lead sponsor
- University of Washington
- Other
- Eligibility
- 21 Years to 65 Years
- Enrollment
- 67 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2011
- U.S. locations
- 1
- States / cities
- Kenmore, Washington
- Conditions
- Otitis Media
- Interventions
- Cranial osteopathic manipulative treatment., Echinacea purpurea, Sham osteopathic manipulative treatment, "Echinacea purpurea" placebo
- Procedure · Dietary Supplement
- Lead sponsor
- University of Arizona
- Other
- Eligibility
- 12 Months to 60 Months
- Enrollment
- 90 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 1999 – 2002
- U.S. locations
- 3
- States / cities
- Tucson, Arizona