Clinical trial

St. John's Wort for Tobacco Cessation

NCT00405912 · Mayo Clinic, Other · Completed

Key facts

NCT number NCT00405912
Title St. John's Wort for Tobacco Cessation
Official title St. John's Wort for Tobacco Cessation
Lead sponsor Mayo Clinic, Other
Collaborators National Cancer Institute (NCI) NIH
Status Completed
Phase Phase 2
Study type Interventional
Conditions Smoking, Nicotine Dependence
Intervention type Drug
Interventions Placebo, St. John's Wort-900 mg/day, St. John's Wort-1800mg/day
Enrollment 118
Start date Sep 1, 2005
Primary completion Mar 1, 2008
Completion Mar 1, 2008
First posted Nov 30, 2006
Last update posted Apr 19, 2011
Countries United States

At a glance

  • 1–9 Study sites
  • Yes Results posted
  • None Linked FDA submissions

Counts are shown as ranges. Exact figures, trends and every underlying record are available in Orca1.

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Source: U.S. National Library of Medicine (NLM), ClinicalTrials.gov · Source date:

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