# Evaluation of Echinacea for the Common Cold

> **NCT00032500** · PHASE2 · COMPLETED · sponsor: **National Center for Complementary and Integrative Health (NCCIH)**

## Conditions studied

- Common Cold

## Interventions

- **DRUG:** Echinacea

## Key facts

- **NCT ID:** NCT00032500
- **Lead sponsor:** National Center for Complementary and Integrative Health (NCCIH)
- **Sponsor class:** NIH
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2001-09
- **Primary completion:** —
- **Final completion:** 2004-05
- **Target enrollment:** — (—)
- **Last updated:** 2006-08-18


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00032500

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00032500, "Evaluation of Echinacea for the Common Cold". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT00032500. Licensed CC0.

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