EE20 clinical trials
How each study uses EE20 is sorted by a rule, right about nine times in ten. Readers can ask us to read every study one by one.Ask us to read each study
Approvals
The first approval found in each region, with its record
- United States
- Not in FDA's approval records
- European Union
- Not in EMA's list of EU-wide authorisations
From FDA's Drugs@FDA and Purple Book (through openFDA) and the European Medicines Agency, files of Sept 2026 and 27 Oct 2026. National approvals in Europe and other countries are not included. How this is worked out
How studies write it
Studies that test it under each name
Studies by the year they started
10 studies that test it; most in 2013 (3)
| Year | Studies |
|---|---|
| 2007 | 1 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 1 |
| 2012 | 1 |
| 2013 | 3 |
| 2016 | 2 |
By phase
A phase 1/2 study counts in both.
What it is tested for
Each study’s main condition, where its own words name it, so a study counts once.
Who runs them
Industry 10 · Other 0
Often tested with
Tested in the same studies.
Studies
Open first, then newest update. How each study uses EE20 is read from its arms, and is right about nine times in ten. Ask us to read each study. These are the studies that list it as an intervention; a search of ClinicalTrials.gov also finds studies that mention it only in a description, such as earlier treatment.
Testing it · 10
- YAZ Post Authorization Safety Study (PASS)/Post Authorization Efficacy Study (PAES) in ChinaCompletedPhase 4BayerNCT02710708Written as EE20/DRSP (YAZ, BAY86-5300)
- Study of Treatment With the Combination of Drospirenone Plus Ethinyl Estradiol Plus Levomefolate Calcium in Mexican Women Seeking ContraceptionCompletedPhase 3BayerNCT01902264Written as EE20/DRSP/L-5-MTHF (Beyaz, BAY98-7071)
- Comparative Study of BAY86-5300 With an Extended Flexible Regimen for EndometriosisCompletedPhase 3BayerNCT01697111Written as EE20/DRSP(BAY86-5300)
- To Investigate Efficacy of YAZ in the Treatment of DysmenorrheaWithdrawnPhase 3BayerNCT02617537Written as EE20/DRSP(YAZ,BAY86-5300)
- Comparative Study of BAY86-5300 With a Flexible Extended Regimen for DysmenorrheaCompletedPhase 3BayerNCT01892904Written as EE20/DRSP(BAY86-5300)
- GA YAZ ACNE in China Phase IIICompletedPhase 3BayerNCT00818519Written as EE20/Drospirenone (YAZ, BAY86-5300)
- Comparative Trial in Hormone Withdrawal Associated SymptomsCompletedPhase 3BayerNCT01076582Written as EE20/DRSP (YAZ, BAY86-5300)
- Clinical Study of a Conventional and Flexible Extended Oral Contraceptive of EE/DRSP With or Without Metafolin in Latin AmericaWithdrawnPhase 3BayerNCT01331655Written as EE20/DRSP (BAY86-5300)
- YAZ Premenstrual Dysphoric Disorder (PMDD) in ChinaCompletedPhase 3BayerNCT00824187Written as EE20/DRSP(YAZ, BAY86-5300)
- Efficacy and Safety of Two Flexible Extended Regimens of BAY86-5300 (SH T00186D) in Comparison With the Conventional Regimen of YAZCompletedPhase 3BayerNCT00567164Written as EE20/DRSP (BAY86-5300)