International Active Surveillance Study: Native Estrogen Estetrol (E4) Safety Study
Recruiting
Observational Study
Contraception
Birth Control
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
Healthy Volunteers Welcome
You do not need to have the condition being studied to take part.
No Study Drug
Researchers observe your health over time — no experimental treatment is given.
At a Glance
- Sex
- Female
- Study type
- Observational
- Participants needed
- 101,000 (estimated)
- Sponsor
- Center for Epidemiology and Health Research, Germany · Other
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About This Trial
Multinational, comparative, prospective, active surveillance study that follows two cohorts.
The primary objective of the study is to characterize and compare the risks of E4/Drospirenone (DRSP) with levonorgestrel-containing combined oral contraceptives (EE/LNG) in a study population that is representative of the actual users of these preparations. The main clinical outcome of interest is venous…
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
New users of E4/DRSP New users of EE/LNG Germany: only recruitment of study participants who are prescribed the COC within on-label use
Exclusion Criteria:
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Contacts