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Last Updated: January 26, 2023

CLINICAL TRIALS PROFILE FOR LEVONORGESTREL


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All Clinical Trials for Levonorgestrel

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00064766 ↗ Norplant and Irregular Bleeding/Spotting Unknown status Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) Phase 4 2003-02-01 Irregular or prolonged menstrual bleeding and/or spotting are common side effects in patients using progestin-only hormonal contraception such as levonorgestrel implants (Norplant). Doxycycline, a drug approved by the Food and Drug Administration (FDA) to treat gum disease, may reduce the occurrence of uterine bleeding and spotting in women who use Norplant. This study will evaluate the effects of doxycycline on uterine bleeding/spotting in women using Norplant.
NCT00117273 ↗ A Study to Evaluate Suppression of the Pituitary-Ovarian Axis With Three Different Oral Contraceptive Regimens Completed Duramed Research Phase 3 2005-06-01 This is a randomized, open-label study to evaluate pituitary ovarian suppression in healthy, reproductive-aged women using three different regimens of oral contraceptives (OCs). Two extended regimen OCs, Seasonale (levonorgestrel/ethinyl estradiol 0.15/0.03 mg for 84 days followed by 7 days of placebo), and Seasonique (levonorgestrel/ethinyl estradiol 0.15/0.03 mg for 84 days followed by 7 days of ethinyl estradiol 0.01 mg), and a 28-day regimen OC, Portia (levonorgestrel/ethinyl estradiol 0.15/0.03 mg for 21 days followed by 7 days of placebo).
NCT00128934 ↗ Study Evaluating Combination of Levonorgestrel (LNG) and Ethinyl Estradiol (EE) in Premenstrual Dysphoric Disorder Completed Wyeth is now a wholly owned subsidiary of Pfizer Phase 3 2005-08-01 The purpose of this study is to determine whether levonorgestrel (LNG)/ethinyl estradiol (EE) is effective in treating the symptoms of severe premenstrual syndrome (PMS).
NCT00131885 ↗ Effects of St. John's Wort on the Oral Contraceptive Hormone Levonorgestrel Completed National Center for Complementary and Integrative Health (NCCIH) Phase 4 2005-08-01 This study will determine the effects of St. John's wort, a common herbal remedy, on metabolism of the female contraceptive hormone levonorgestrel.
NCT00131885 ↗ Effects of St. John's Wort on the Oral Contraceptive Hormone Levonorgestrel Completed University of Utah Phase 4 2005-08-01 This study will determine the effects of St. John's wort, a common herbal remedy, on metabolism of the female contraceptive hormone levonorgestrel.
NCT00161681 ↗ Study Evaluating Levonorgestrel/Ethinyl Estradiol (LNG/EE) in PMS Completed Wyeth is now a wholly owned subsidiary of Pfizer Phase 3 2005-07-01 The purpose of this study is to determine whether LNG/EE is effective in the treatment of menstrual cycle related symptoms.
NCT00185224 ↗ Metabolism Study to Investigate the Impact of a Sequential Oral Contraceptive Completed Bayer Phase 2 2005-03-01 The purpose of this study is to confirm the safety of SH T00658ID with regard to plasma lipids, hemostatic variables, and carbohydrate metabolism. In addition, the pharmacokinetic parameter following the long term administration of SH T00658ID will be assessed.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for Levonorgestrel

Condition Name

Condition Name for Levonorgestrel
Intervention Trials
Contraception 77
Healthy 20
HIV 11
Endometriosis 10
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Condition MeSH

Condition MeSH for Levonorgestrel
Intervention Trials
Hemorrhage 18
Emergencies 16
Hyperplasia 14
Endometrial Hyperplasia 12
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Clinical Trial Locations for Levonorgestrel

Trials by Country

Trials by Country for Levonorgestrel
Location Trials
United States 440
Germany 62
Canada 30
China 23
Japan 19
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Trials by US State

Trials by US State for Levonorgestrel
Location Trials
Pennsylvania 25
California 24
Florida 23
Ohio 22
Colorado 22
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Clinical Trial Progress for Levonorgestrel

Clinical Trial Phase

Clinical Trial Phase for Levonorgestrel
Clinical Trial Phase Trials
Phase 4 52
Phase 3 40
Phase 2/Phase 3 10
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Clinical Trial Status

Clinical Trial Status for Levonorgestrel
Clinical Trial Phase Trials
Completed 162
Recruiting 23
Not yet recruiting 20
[disabled in preview] 36
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Clinical Trial Sponsors for Levonorgestrel

Sponsor Name

Sponsor Name for Levonorgestrel
Sponsor Trials
Bayer 40
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) 13
Wyeth is now a wholly owned subsidiary of Pfizer 8
[disabled in preview] 31
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Sponsor Type

Sponsor Type for Levonorgestrel
Sponsor Trials
Other 218
Industry 128
NIH 31
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