← Back to Clinical Trials
Recruiting NCT06028555

NCT06028555 International Active Surveillance Study: Native Estrogen Estetrol (E4) Safety Study

◆ AI Clinical Summary
Plain-language summary for patients
Clinical Trial Summary
NCT ID NCT06028555
Status Recruiting
Phase
Sponsor Center for Epidemiology and Health Research, Germany
Condition Contraception
Study Type OBSERVATIONAL
Enrollment 101,000 participants
Start Date 2023-06-28
Primary Completion 2028-10-31

Eligibility & Interventions

Sex Female only
Min Age N/A
Max Age N/A
Study Type OBSERVATIONAL

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

This is an observational study. You will not receive an experimental treatment; researchers will collect data based on your existing condition or standard treatment.

This trial targets 101,000 participants in total. It began in 2023-06-28 with a primary completion date of 2028-10-31.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

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 thromboembolism (VTE), specifically deep venous thrombosis (DVT) and pulmonary embolism (PE). Secondary objectives include measuring the occurrence of unintended pregnancy, assessing the risk of arterial thromboembolism (ATE), describing the drug utilization pattern, describing the baseline risk profile for VTE and ATE, and investigating outcomes associated with foetal exposure to E4/DRSP.

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: \-

Contact & Investigator

Central Contact

Armin Papkalla, Dr.

✉ a.papkalla@zeg-berlin.de

📞 +49 30 945 101 20

Principal Investigator

Klaas Heinemann, Dr.

PRINCIPAL INVESTIGATOR

ZEG Berlin GmbH

Frequently Asked Questions

Who can join the NCT06028555 clinical trial?

This trial is open to female participants only, studying Contraception. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

Is NCT06028555 currently recruiting?

Yes, NCT06028555 is actively recruiting participants. Contact the research team at a.papkalla@zeg-berlin.de for enrollment information.

Where is the NCT06028555 trial being conducted?

This trial is being conducted at Berlin, Germany.

Who is sponsoring the NCT06028555 clinical trial?

NCT06028555 is sponsored by Center for Epidemiology and Health Research, Germany. The principal investigator is Klaas Heinemann, Dr. at ZEG Berlin GmbH. The trial plans to enroll 101,000 participants.

Related Trials

ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: September 2026  ·  Data Methodology