Comparing OCT guidance to angiography for treating coronary in-stent restenosis

IN-Stent RestenosIs Detection and TrEtment by Optical Coherence Tomography

Not applicable Interventional San Luigi Gonzaga Hospital · NCT06779110

This study is testing whether using a special imaging technique called OCT can help treat patients with blocked heart stents better than the usual method of using angiography.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment360 (estimated)
Ages18 Years to 99 Years
SexAll
SponsorSan Luigi Gonzaga Hospital Academic / other
Locations12 sites (Aosta, Aosta and 11 other locations)
Trial IDNCT06779110 on ClinicalTrials.gov

What this trial studies

This trial investigates the effectiveness of using optical coherence tomography (OCT) guidance versus traditional angiography guidance for percutaneous coronary intervention (PCI) in patients with coronary in-stent restenosis. Patients with significant restenosis will be randomly assigned to receive either OCT-guided PCI or angiography-guided PCI. The study aims to determine if OCT can improve outcomes in treating this condition, which remains a challenge despite advancements in stent technology. The trial will involve multiple centers and will assess the acute performance of the interventions.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older with significant coronary in-stent restenosis suitable for PCI.

Not a fit: Patients unable to provide informed consent or those with technical limitations for OCT may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to improved treatment outcomes for patients with coronary in-stent restenosis.

How similar studies have performed: While OCT has shown promise in other cardiac interventions, its specific application in treating in-stent restenosis is still being explored, making this a novel approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Informed consent signed
* Age ≥ 18 years
* Referred for angiography either in stable or ACS setting suitability for PCI through femoral or radial access
* A coronary in-stent restenosis between 70% and 99% in at least two projections in a vessel with a lumen diameter ≥ 2.25 - ≤ 5.75 mm (The severity of the stenosis should be based on visual estimation, with current online state-of-the-art angiographic equipment of the participating centres and after a mandatory dose of 50-200 mcg intracoronary of nitroglycerine.
* Stable hemodynamics

Exclusion Criteria:

* Inability to give informed consent
* Participation in another clinical study with an investigational product
* OCT pullback not technically feasible in vessel site

Where this trial is running

Aosta, Aosta and 11 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Coronary Artery DiseaseStent RestenosisSTENTPercutaneous Coronary InterventionOptimal Coherence Tomography
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.