Drugs / St. John's Wort
last change Aug 2025 re-read 2 minutes ago

St. John's Wort

Traditional medicine (herbal / TCM) targets CYP2C19, CYP3A4 via activation

Developed for
depressive disorder · anxiety disorder · attention deficit-hyperactivity disorder · major depressive disorder · acute coronary syndrome · aphthous stomatitis · bipolar disorder · nicotine dependence
+5 more · obsessive-compulsive disorder · peritoneal carcinomatosis · Raynaud disease · social phobia · irritable bowel syndrome
Investigated by
National Center for Complementary and Integrative Health (NCCIH) · National Cancer Institute (NCI) · National Institute of Mental Health (NIMH) · Alliance for Clinical Trials in Oncology · Batman University · H G Barsumian MD Memorial Fund
+17 more · Lancaster General Hospital · London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's · Louise von Hess Medical Research Institute · Massachusetts General Hospital · Mayo Clinic · National Institutes of Health Clinical Center (CC) · Office of Dietary Supplements (ODS) · Prof. Huss · Rafa Laboratories · Shanghai Mental Health Center · Steiner Arzneimittel, Berlin, Germany · The University of Queensland · University Hospital Tuebingen · University Hospital, Grenoble · University of Southern Denmark · University of Utah · Wake Forest University Health Sciences

Trials 23 · a red edge is where a trial was stopped

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 11 trial
Phase 1 NCT01726764 Jan → Jun 2013 depressive disorder, type 2 diabetes mellitus University of Southern Denmark Completed No outcome recorded
Phase 26 trials
Phase 2 NCT00451516 Mar → Oct 2007 anxiety disorder, major depressive disorder The University of Queensland Completed No outcome recorded
Phase 2 NCT00110136 Mar 2006 → Apr 2008 breast cancer Wake Forest University Health Sciences Terminated No outcome recorded
Phase 2 NCT00405912 Sep 2005 → Mar 2008 nicotine dependence Mayo Clinic Completed No outcome recorded
Phase 2 NCT00100295 Feb 2005 → Nov 2006 attention deficit-hyperactivity disorder National Center for Complementary and Integrative Health (NCCIH) Completed No outcome recorded
Phase 2 NCT00035438 May 2002 → Sep 2003 obsessive-compulsive disorder National Center for Complementary and Integrative Health (NCCIH) Completed No outcome recorded
Phase 2 NCT00035412 Dec 2001 → Aug 2004 social phobia National Center for Complementary and Integrative Health (NCCIH) Completed No outcome recorded
Phase 2/31 trial
Phase 2/3 NCT00118833 Aug 2002 → Jun 2006 anxiety disorder National Center for Complementary and Integrative Health (NCCIH) Completed No outcome recorded
Phase 35 trials
Phase 3 NCT02840331 Jul 2017 → Dec 2019 peritoneal carcinomatosis University Hospital Tuebingen Unknown No outcome recorded
Phase 3 NCT00782080 Jul 2008 → Mar 2010 attention deficit-hyperactivity disorder Prof. Huss Completed No outcome recorded
Phase 3 NCT00351117 Mar 2007 → Aug 2008 Raynaud disease London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's Completed No outcome recorded
Phase 3 NCT00222365 Dec 2003 → May 2006 University Hospital, Grenoble Terminated No outcome recorded
Phase 3 NCT00041171 breast cancer, head and neck cancer, malignant urinary system neoplasm, reproductive system cancer +1 Alliance for Clinical Trials in Oncology Withdrawn No outcome recorded
Phase 45 trials
Phase 4 NCT01938859 Jun 2012 → Dec 2017 bipolar disorder Shanghai Mental Health Center Unknown No outcome recorded
Phase 4 NCT00557427 Jan 2009 → Nov 2010 depressive disorder Rafa Laboratories Terminated No outcome recorded
Phase 4 NCT00131885 Aug 2005 → May 2008 University of Utah Completed No outcome recorded
Phase 4 NCT00027014 Sep 2001 → May 2005 National Center for Complementary and Integrative Health (NCCIH) Completed No outcome recorded
Phase 4 NCT00006395 Oct 2000 → Apr 2001 National Institutes of Health Clinical Center (CC) Completed No outcome recorded
Phase not applicable5 trials
NCT06839313 Feb → Aug 2025 aphthous stomatitis Batman University Completed No outcome recorded
NCT01330589 Apr 2011 → Mar 2015 acute coronary syndrome Lancaster General Hospital Withdrawn No outcome recorded
NCT00048815 Feb 2003 → Apr 2007 depressive disorder Massachusetts General Hospital Completed No outcome recorded
NCT00026013 Jan 2002 → Jan 2004 National Center for Complementary and Integrative Health (NCCIH) Completed No outcome recorded
NCT00005013 Dec 1998 → Jul 2001 major depressive disorder National Institute of Mental Health (NIMH) Completed No outcome recorded
Also used as a comparator or background therapy in 1 trial
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 2 NCT00587860 Comparator Feb 2006 → Jan 2008 irritable bowel syndrome Mayo Clinic Completed No outcome recorded

Evidence & citations 13 cited values

Every value below carries the sentence it was read from. 26 sources stand behind the page.

FieldValueCited text
Known as St. John's wort “The purpose of this study is to evaluate whether patients post PCI receiving clopidogrel who are carriers of at least one CYP 2C19 loss-of-function allele may achieve improved...” NCT01330589
20

“The purpose of this trial is to study the acute efficacy and safety of a standardized extract of the herb Hypericum perforatum (St. John's Wort), called hypericum for purposes...” NCT00005013

“This pilot study examined the effectiveness, safety, tolerability, and pharmacodynamics of Hypericum perforatum (St. John's wort) in the treatment of youths diagnosed with...” PMID 12874492 Aug 2003

“The purpose of this study is to evaluate the effects of a common herbal remedy, St. John's Wort, on the effectiveness of birth control pills.” NCT00026013

“Phase III Randomized Study of Hypericum Perforatum (St. John's Wort) Combined With Docetaxel in Patients With Unresectable Solid Tumors” NCT00041171

St. John's Wort (Hypericum perforatum) orally or 4-6 weeks” NCT00131885

“St. John´s Wort (100 mg) Valerian Extract (50 mg)” NCT00782080

“Hypericum perforatum (St. John's wort)” NCT00118833

“Other: St John's Wort” NCT01726764

NCT01330589

NCT00587860

NCT00035412

NCT00035438

NCT00110136

NCT00048815

NCT00006395

NCT00405912

NCT02840331

NCT00451516

NCT00027014

NCT00351117

Known as H. perforatum “OBJECTIVE: To test the efficacy and safety of a well-characterized H perforatum extract (LI-160) in major depressive disorder.” PMID 11939866 Apr 2002
Known as hypericum “The purpose of this trial is to study the acute efficacy and safety of a standardized extract of the herb Hypericum perforatum (St. John's Wort), called hypericum for purposes...” NCT00005013
1

NCT00557427

Known as Hypericum perforatum “This pilot study examined the effectiveness, safety, tolerability, and pharmacodynamics of Hypericum perforatum (St. John's wort) in the treatment of youths diagnosed with...” PMID 12874492 Aug 2003
12

“There has been considerable worldwide interest in St. John's Wort (SJW) (Hypericum perforatum) as a treatment of mild to moderate depression.” NCT00035412

“Extract of St. John's wort (SJW: Hypericum perforatum) has gained widespread popularity as an over-the-counter, natural antidepressant.” NCT00027014

“Phase III Randomized Study of Hypericum Perforatum (St. John's Wort) Combined With Docetaxel in Patients With Unresectable Solid Tumors” NCT00041171

“Determine the efficacy of Hypericum perforatum (St. John's wort) in alleviating hot flashes” NCT00110136

“St. John's Wort (Hypericum perforatum) orally or 4-6 weeks” NCT00131885

NCT00026013

NCT00118833

NCT00041171

NCT00222365

NCT06839313

NCT00100295

NCT00005013

Known as LI-160 “OBJECTIVE: To test the efficacy and safety of a well-characterized H perforatum extract (LI-160) in major depressive disorder.” PMID 11939866 Apr 2002
1

“Forty patients will be randomized to either SJW (LI 160) or matching placebo.” NCT00035412

Known as SGJY, St.John's wort and acanthopanax senticosus combination “TCM named as Shuganjieyu capsule (SGJY, St. John's wort and acanthopanax senticosus combination).” NCT01938859
Known as Shuganjieyu capsule ClinicalTrials.gov intervention name — accepted as the source's own label NCT01938859
Known as SJW “The objective of the proposed study is to assess the efficacy of the herbal St. John's Wort (SJW) in the treatment of symptoms of obsessive-compulsive disorder (OCD).” NCT00035438
2

“There has been considerable worldwide interest in St. John's Wort (SJW) (Hypericum perforatum) as a treatment of mild to moderate depression.” NCT00035412

“Extract of St. John's wort (SJW: Hypericum perforatum) has gained widespread popularity as an over-the-counter, natural antidepressant.” NCT00027014

Known as St. John's wort oil “Hypericum perforatum (St. John's wort oil, Zade Vital; Health&Fitness, Developed With Ege Üniversiesi Argefar)” NCT06839313
Action Activate “SJW treatment may increase the activity of a transporter protein, named P-glycoprotein (Pgp), in the blood-brain barrier (BBB) that protects the brain from exposure to drugs...” NCT00027014
Modality Traditional medicine (herbal / TCM) “common herbal remedy” NCT00026013
Route Oral “Patients receive oral Hypericum perforatum three times daily on days 1-14 and docetaxel as in arm I.” NCT00041171
Target CYP3A4 “induce previously induced CYP3A4 enzyme activity” NCT00006395