NCT05301218

Brief Summary

Calcified lesions are very frequent among coronary artery disease stenotic lesions. The prevalence of calcifications ranges from 30 to 40% (by angiography evaluation) but is higher when analyzed by intra coronary imaging. Calcified lesions are very frequent among coronary artery disease stenotic lesions. The prevalence of calcifications ranges from 30 to 40% (by angiography evaluation) but is higher when analyzed by intra coronary imaging. The presence of calcifications increases the risk of adverse evolution after PCI , including stent restenosis, thrombosis and need for repeat revascularisation. Specific and appropriate tools can be used for calcified lesions management , including high pressure non compliant balloons, intravascular lithotripsy and rotablator. Intra vascular OCT has a high sensitivity and specificity for calcium detection among coronary artery lesions. Compared to IVUS, OCT allows a better quantification of calcium sheets (depth extension ) . Several intra coronary imaging based calcified lesions management algorithms have been proposed , but none have been validated in clinical practice.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
140

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Dec 2021

Typical duration for not_applicable

Geographic Reach
1 country

14 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 15, 2021

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

March 8, 2022

Completed
21 days until next milestone

First Posted

Study publicly available on registry

March 29, 2022

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 15, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 15, 2023

Completed
Last Updated

November 15, 2022

Status Verified

April 1, 2022

Enrollment Period

2 years

First QC Date

March 8, 2022

Last Update Submit

November 14, 2022

Conditions

Keywords

Optical Coherence Tomography, OCTminimal stent area(MSA)

Outcome Measures

Primary Outcomes (1)

  • The primary endpoint of the CALIPSO study is the minimal stent area (MSA) on the final OCT run

    The crude minimal stent area (MSA) will be measured along the stent on the target lesion. Stent geometric expansion will be evaluated by the DOCTORS criteria for non-bifurcated segments (Meneveau et, Circulation 2016) and LEMON criteria for bifurcated segments (Amabile et al;, Eurointervention 2020).

    During the procedure

Secondary Outcomes (9)

  • Geometrical stent expansion (%) according to the DOCTORS or LEMON criteria

    during procedure

  • Residual post PCI (Percutaneous Coronary Intervention)stenosis (assessed by QCA methods)

    during procedure

  • Residual major struts malapposition: crude incidence and quantification

    during procedure

  • Major adverse cardiovascular events at 30 days and 1 year

    at 30 days and 1 year

  • Peri-procedural MI according to the SCAI definition (23)

    during procedure

  • +4 more secondary outcomes

Study Arms (2)

angiography-guided group

ACTIVE COMPARATOR

the treatment (including lesion preparation, stent sizing and post implantation optimization) will be performed by angiography. Once the result is considered optimal by the operator, a control OCT run will be acquired.

Procedure: angioplasty

OCT-guided group

EXPERIMENTAL

a preliminary OCT run will be recorded. An initial predilation with 1.5 to 2.0 mm balloon could be accepted in order to facilitate OCT catheter delivery through the target lesion. The PCI strategy will be guided by a pre-defined algorithm based on initial OCT findings. Post PCI result will be assessed by control OCT and potential optimization steps could be applied according to the results. The MLD-MAX optimization approach will be applied. Final OCT run will be performed at the end of the procedure.

Procedure: angioplasty

Interventions

angioplastyPROCEDURE

Coronary angioplasty, also called percutaneous coronary intervention, is a procedure used to open clogged heart arteries. Angioplasty uses a tiny balloon catheter that is inserted in a blocked blood vessel to help widen it and improve blood flow to the heart

OCT-guided groupangiography-guided group

Eligibility Criteria

Age18 Years - 100 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patient with chronic coronary syndrome
  • Angiographically moderately to severely calcified target lesion, defined as follows:
  • Moderate: lesion with radio-opacities noted only during the cardiac cycle before contrast dye injection (Aksoy et al., Circ Cardiovasc Interv 2019)
  • Severe: lesion with radio-opacities seen without cardiac motion before contrast dye injection, visible on both sides of the arterial lumen(Aksoy et al., Circ Cardiovasc Interv 2019)
  • Possibility to cross the target lesion with OCT catheter

You may not qualify if:

  • On-going cardiogenic shock
  • Acute coronary syndrome related to target lesion
  • Severe renal failure (Creatinine clearance: 30 ml/min/m2)
  • Impossibility to cross target lesion with OCT catheter \& balloons,
  • Indication for Rotablator device as first line therapy
  • Pregnancy
  • Age \< 18 y
  • Denial to provide consent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (14)

Ch de Bastia

Bastia, 20600, France

RECRUITING

CHU de Besançon

Besançon, 25000, France

RECRUITING

CHU de Bordeaux

Bordeaux, 33000, France

RECRUITING

Clinique Saint Augustin

Bordeaux, 33200, France

RECRUITING

CHU de Clermont-Ferrand

Clermont-Ferrand, 63000, France

RECRUITING

Hôpital Louis Pasteur

Le Coudray, 28630, France

RECRUITING

L'Hôpital Privé du Confluent

Nantes, 44000, France

RECRUITING

CHU Nîmes

Nîmes, 30029, France

RECRUITING

Polyclinique les Fleurs

Ollioules, 83190, France

RECRUITING

CHU de Poitiers

Poitiers, 86000, France

RECRUITING

Clinique Saint-Hilaire

Rouen, 76000, France

RECRUITING

Institut Arnaud Tzanck,

Saint-Laurent-du-Var, 06700, France

RECRUITING

Clinique Pasteur

Toulouse, 31300, France

RECRUITING

Institut Mutualiste montsouris

Paris, Île-de-France Region, 75014, France

RECRUITING

Related Publications (1)

  • Amabile N, Range G, Landolff Q, Bressollette E, Meneveau N, Lattuca B, Levesque S, Boueri Z, Adjedj J, Casassus F, Belfekih A, Veugeois A, Souteyrand G, Honton B. OCT vs Angiography for Guidance of Percutaneous Coronary Intervention of Calcified Lesions: The CALIPSO Randomized Clinical Trial. JAMA Cardiol. 2025 Jul 1;10(7):666-675. doi: 10.1001/jamacardio.2025.0741.

MeSH Terms

Conditions

Ornithine Carbamoyltransferase Deficiency Disease

Interventions

Angioplasty

Condition Hierarchy (Ancestors)

Urea Cycle Disorders, InbornBrain Diseases, Metabolic, InbornBrain Diseases, MetabolicBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesGenetic Diseases, X-LinkedGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesAmino Acid Metabolism, Inborn ErrorsMetabolism, Inborn ErrorsMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

CatheterizationTherapeuticsEndovascular ProceduresVascular Surgical ProceduresCardiovascular Surgical ProceduresSurgical Procedures, OperativeMinimally Invasive Surgical ProceduresInvestigative Techniques

Study Officials

  • Nicolas Amabile, MD PhD

    Institut Mutualiste Montsouris

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Nicolas Amabile, MD PhD

CONTACT

Silvia Burbassi, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 8, 2022

First Posted

March 29, 2022

Study Start

December 15, 2021

Primary Completion

December 15, 2023

Study Completion

December 15, 2023

Last Updated

November 15, 2022

Record last verified: 2022-04

Locations