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Ultreon OCT- vs IVUS- guided PCI in ST and Non-ST Elevated Myocardial Infarction Patients (ULTEMIS trial)

Ultreon OCT- vs IVUS- guided PCI in ST and Non-ST Elevated Myocardial Infarction Patients (ULTEMIS trial) - ULTEMIS trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs032250273
Enrollment
1300
Registered
2025-08-01
Start date
2025-10-13
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

acute myocardial infarction

Interventions

Test group: opitical coherence tomography-guided percutaneous coronary intervention Control group: intravascular ultrasound-guided percutaneous coronary intervention

Sponsors

Shinke Toshiro
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1.Subject age >= 18 years old 2.AMI diagnosed within 24 hours from the onset of ischemic symptoms 3.Identification of the culprit lesion and the indication for emergency PCI under intravascular imaging guidance

Exclusion criteria

Exclusion criteria: 1.Unable or unwilling to provide written informed consent from the participant or their legally acceptable representative 2.No indication for any PCI 3.Known severe renal dysfunction (serum creatinine >2.0 mg/dL) 4.Renal replacement therapy 5.Cardiogenic shock (Killip IV) 6.Previous coronary artery bypass graft surgery 7.Estimated life expectancy <1 year 8.Left main coronary artery lesion 9.Right coronary artery ostium lesion 10.Anticipated inability to cross the intravascular imaging catheter or difficulty in image acuisition due to severe calcification, tortuosity or dilation 11.Chronic total occlusion lesion 12.Any prior PCI within 1 month 13.Contraindication to antiplatelet agent or heparin 14.Pregnancy or breast feeding 15.Unwillingness or inability to comply with the requirements of the study protocol

Design outcomes

Primary

MeasureTime frame
Non-inferiority of the OCT-guided PCI compered to IVUS guided PCI in terms of target vessel failure (TVF) at a median follow-up of 1.5 years after randomization in the study population. - TVF is defined as composite time-to-first event rate of cardiac death, target vessel* myocardial infarction, or ischemia-driven target vessel revascularization (ID-TVR). *Target vessel: vessels treated for both the culprit lesion of AMI and a non-culprit lesion (planned to be treated within 3 months from the index PCI).

Secondary

MeasureTime frame
Clinical outcomes 1)Individual components of primary endpoint 2)All-cause death 3)Cardiac and non-cardiac death 4)Any myocardial infarction 5)Definite/probable stent thrombosis (ARC definition) 6)Stroke 7)Any revascularization 8)ID-revascularization and non-ID-revascularization 9)ID-TVR, ID-TLR and ID-non-TLR TVR 10)Bleeding 11)Relationship between post-PCI OCT/IVUS parameters and clinical endpoint rates Procedure outcomes 1)Achievement rate of TIMI grade 3 flow 2)Rate of achieving optimal imaging criteria 3)Rate of stentless procedure 4)Imaging performance success Safety outcomes 1)Contrast induced nephropathy 2)Procedure time, fluoroscopy time, radiation dose, and quantity of contrast medium 3)Imaging related or non-related procedural complications (coronary perforation, coronary dissection, distal embolization, side branch occlusion, ventricular fibrillation or tachycardia during procedure, stroke during procedure).

Countries

Japan, Undetermined

Contacts

Public ContactKoshiro Sakai

Showa Medical University

koshiro-s@med.showa-u.ac.jp+81-3-3784-8539

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026