CAlcified Lesion Intervention Planning Steered by OCT.
CALIPSO
1 other identifier
interventional
140
1 country
14
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Dec 2021
Typical duration for not_applicable
14 active sites
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
CompletedFirst Submitted
Initial submission to the registry
March 8, 2022
CompletedFirst Posted
Study publicly available on registry
March 29, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 15, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
December 15, 2023
CompletedNovember 15, 2022
April 1, 2022
2 years
March 8, 2022
November 14, 2022
Conditions
Keywords
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 COMPARATORthe 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.
OCT-guided group
EXPERIMENTALa 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.
Interventions
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
Eligibility Criteria
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
- Institut Mutualiste Montsourislead
- Abbottcollaborator
Study Sites (14)
Ch de Bastia
Bastia, 20600, France
CHU de Besançon
Besançon, 25000, France
CHU de Bordeaux
Bordeaux, 33000, France
Clinique Saint Augustin
Bordeaux, 33200, France
CHU de Clermont-Ferrand
Clermont-Ferrand, 63000, France
Hôpital Louis Pasteur
Le Coudray, 28630, France
L'Hôpital Privé du Confluent
Nantes, 44000, France
CHU Nîmes
Nîmes, 30029, France
Polyclinique les Fleurs
Ollioules, 83190, France
CHU de Poitiers
Poitiers, 86000, France
Clinique Saint-Hilaire
Rouen, 76000, France
Institut Arnaud Tzanck,
Saint-Laurent-du-Var, 06700, France
Clinique Pasteur
Toulouse, 31300, France
Institut Mutualiste montsouris
Paris, Île-de-France Region, 75014, France
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.
PMID: 40305015DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Nicolas Amabile, MD PhD
Institut Mutualiste Montsouris
Central Study Contacts
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