Clinical Trial

Arterial Vascular Effects of Estetrol-drospirenone Combined Oral Contraceptive Pill

Not Yet Recruiting Phase 3
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Summary
The goals of this clinical trial are to investigate the effect of the estetrol (E4)-drospirenone combined oral contraceptive (COC) pill on flow-mediated dilatation (FMD) of the brachial artery and pulse wave velocity (PWV), in comparison to the ethinylestradiol (EE)-levonorgestrel COC pill, and to compare their respective effects on blood pressure, chronic inflammatory markers, as well as glycaemic and lipid indices. The main questions it aims to answer are: Does E4-drospirenone COC have significantly smaller effects then EE-levonorgestrel COC on FMD, PWV, blood pressure, chronic inflammatory markers, as well as glycemic and lipid indices. Researchers will compare E4-drospirenone to EE-levonorgestrel to see if the former has lower arterial vascular and metabolic risks. Participants will: * be randomised to take E4-drospirenone or EE-levonorgestrel COC pill according to product insert; * visit the clinic at baseline and 6 and 12 months post-recruitment for checkups and tests
Protocol Amendment History 1 amendment
This ClinicalTrials.gov record has been amended once since 2026-04-12.
Trial Details
NCT Number NCT07536763
Lead Sponsor Dr. Hang Wun Raymond Li
Collaborators: The Family Planning Association of Hong Kong
Conditions Contraception
Enrollment 98 participants
Start Date 2026-07
Primary Completion 2029-06 (estimated)
Study Completion 2029-06 (estimated)
Updated on ClinicalTrials.gov 2026-04-27