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97,000 women join study to see if new IUD prevents pregnancy as expected
NCT ID NCT02146950
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether a new hormonal IUD called LCS12 is as good at preventing pregnancy as the well-known Mirena IUD and copper IUDs. About 97,000 women under 40 who got a new IUD will be followed to see how often pregnancy or other problems like infection or injury happen. The goal is to make sure the new IUD is safe and works well in everyday use.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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97,265 people
The number who actually took part.
- Started
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Jun 2014
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Women using an intrauterine system/device (hormonal IUS or copper IUD)
- Ages
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Up to 39 years
- Sex
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Female participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Women aged below 40 years who have a new IUD inserted (LCS12, Kyleena, Mirena, copper IUD, or any other hormonal IUD) * Women who are willing to participate in the active surveillance Exclusion Criteria: * Women aged 40 or older at insertion day * Women who are currently enrolled in an interventional trial on IUD use can not participate
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Center for Epidemiology and Health Research Berlin
Berlin, 10115, Germany
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Other studies related to the condition(s) this trial covers.
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