New coil technique aims to stop dangerous leaks after aneurysm surgery

NCT ID NCT05665101

Recruiting now Prevention Sponsor: Univ.-Prof. Dr. Dr. med. Daniela Branzan Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether adding metal coils to the aneurysm sac during standard endovascular repair (EVAR) can prevent type II endoleaks—a common complication where blood flows backward into the aneurysm. About 100 high-risk patients will be randomly assigned to receive EVAR alone or EVAR with coiling. The main goal is to see if coiling reduces endoleaks at 12 months.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: coil embolization (procedure)
What this could lead to: If successful, this could become a standard addition to EVAR for high-risk patients, reducing the need for invasive follow-up procedures.
What could go wrong: This is a relatively small, early-phase trial (100 participants) and the benefit may not apply to all patients. Coiling adds procedural time and carries its own risks, such as coil migration or incomplete sealing.

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Conditions

The condition(s) this trial relates to.

abdominal aortic aneurysm Endoleak

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

ABDOMINAL AORTIC ANEURYSM ENDOLEAK

Contacts and locations

Locations

TUM Klinikum Rechts der Isar, Klinik und Poliklinik für Vaskuläre und Endovaskuläre Chirurgie
RECRUITING

Munich, Bavaria, 81675, Germany

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