Evaluate the Safety and Efficacy of Intracoronary Lithotripsy Balloon Catheter and Intracoronary Lithotripsy Apparatus
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ClinicalTrials.gov Identifier: NCT05649488 |
Recruitment Status :
Not yet recruiting
First Posted : December 14, 2022
Last Update Posted : December 14, 2022
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Condition or disease | Intervention/treatment | Phase |
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Coronary Artery Disease Intravascular Lithotripsy | Device: Intracoronary lithotripsy balloon catheter and Intracoronary lithotripsy apparatus Device: Dragonfly Opstar Imaging Catheter | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 184 participants |
Allocation: | Non-Randomized |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Evaluate the Safety and Efficacy of Intracoronary Lithotripsy Balloon Catheter and Intracoronary Lithotripsy Apparatus for Preconditioning of Coronary Calcified Lesions in a Prospective, Multi-center, Single-group Clinical Trial |
Estimated Study Start Date : | December 23, 2022 |
Estimated Primary Completion Date : | December 1, 2024 |
Estimated Study Completion Date : | September 22, 2025 |
Arm | Intervention/treatment |
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Experimental: Experimental group
184 patients were enrolled in the experimental group
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Device: Intracoronary lithotripsy balloon catheter and Intracoronary lithotripsy apparatus
Introduction: After the preparation, release the intracoronary lithotripsy balloon catheter to the area to be treated and release the shock wave pulse for treatment. After the balloon reaches the predetermined position, use angiography to lock the position and fill the balloon to 6 atm. After the shock wave pulse therapy, the balloon was expanded to 8 atm according to the balloon compliance table and lasted for 10s. After the treatment, unload the balloon pressure, wait for the blood flow to recover, and repeat the second treatment after an interval of one minute, two cycles, releasing a total of 20 shock wave pulses as a treatment cycle. Therapeutic apparatus specification: IVL-HVG-C01; Specifications of balloon catheter: C20012, C20015, C22512, C22515, C25012, C25015, C27512, C27515, C30012, C30015, C32512, C32515, C35012, C35015, C37512, C37515, C40012, C40015 |
Optical Coherence Tomography Subgroup
70 patients in the test group were enrolled in the OCT subgroup.
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Device: Intracoronary lithotripsy balloon catheter and Intracoronary lithotripsy apparatus
Introduction: After the preparation, release the intracoronary lithotripsy balloon catheter to the area to be treated and release the shock wave pulse for treatment. After the balloon reaches the predetermined position, use angiography to lock the position and fill the balloon to 6 atm. After the shock wave pulse therapy, the balloon was expanded to 8 atm according to the balloon compliance table and lasted for 10s. After the treatment, unload the balloon pressure, wait for the blood flow to recover, and repeat the second treatment after an interval of one minute, two cycles, releasing a total of 20 shock wave pulses as a treatment cycle. Therapeutic apparatus specification: IVL-HVG-C01; Specifications of balloon catheter: C20012, C20015, C22512, C22515, C25012, C25015, C27512, C27515, C30012, C30015, C32512, C32515, C35012, C35015, C37512, C37515, C40012, C40015 Device: Dragonfly Opstar Imaging Catheter OCT (optical coherence tomography) measurement using Dragonfly Opstar Imaging Catheter was performed in the OCT subgroup before or after the treatment of intracoronary lithotripsy balloon catheter and intracoronary lithotripsy therapeutic instrument, or after stent placement. |
- Operation success rate [ Time Frame: During hospitalization (up to 7 days after operation) ]After successful stent placement, the residual stenosis in the stent is ≤ 30%, and there is no residual stenosis during hospitalization (up to 7 days after surgery at most) MACE event occurs
- Angiographic success rate (residual stenosis ≤ 30%) [ Time Frame: Immediately after operation ]Efficacy endpoint
- Incidence rate of MACE events 1 month and 6 months after operation [ Time Frame: 6 months after operation ]Security endpoint
- Target lesion failure (TLF) rate 1 month and 6 months after operation [ Time Frame: 6 months after operation ]Security endpoint
- Device success rate [ Time Frame: 6 months after operation ]Security endpoint
- Incidence of serious angiographic complications [ Time Frame: 6 months after operation ]Security endpoint
- Incidence rate of serious adverse events and adverse events [ Time Frame: 6 months after operation ]Security endpoint
- Incidence rate of device defects [ Time Frame: 6 months after operation ]Security endpoint
- Minimum stent area (MSA) immediately after operation [ Time Frame: Immediately after operation ]Secondary destination of OCT subgroup
- Minimum stent lumen diameter (MLD) immediately after operation [ Time Frame: Immediately after operation ]Secondary destination of OCT subgroup
- Diameter of lumen obtained immediately after operation [ Time Frame: Immediately after operation ]Secondary destination of OCT subgroup
- Area of lumen obtained immediately after operation [ Time Frame: Immediately after operation ]Secondary destination of OCT subgroup
- Acquisition rate of lumen immediately after operation [ Time Frame: Immediately after operation ]Secondary destination of OCT subgroup
- Support expansion rate [ Time Frame: Immediately after operation ]Secondary destination of OCT subgroup
- Incomplete adherence rate of support beam [ Time Frame: Immediately after operation ]Secondary destination of OCT subgroup

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Ages Eligible for Study: | 18 Years to 80 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Age 18-80 years, male or non-pregnant female.
- Evidence of symptomatic ischemia, stable or unstable angina, or MI for more than 7 days.
- Patients who can understand the purpose of the trial, voluntarily participate and sign the informed consent form, and are willing to undergo angiography, OCT and clinical follow-up.
Angiogram inclusion criteria
- The target lesion was primary and in situ coronary artery disease.
- Target lesion length ≤40 mm, target lesion reference vessel diameter 2.25-4.0 mm (visual inspection).
- The target lesion diameter stenosis ≥70% or ≥50% (visual inspection) with evidence of ischemia.
- Clear, high-density shadows can be seen both when the heart is beating and when it is not.
- TIMI flow grade 3(allowing predilation) in the target vessel before use of the test equipment.
- The target lesion was the only calcified lesion to be treated with the shock wave, and the non-target lesion needed to be treated successfully before the target lesion.
- Suitable for patients undergoing metallic stent implantation
Exclusion Criteria:
- Severe myocardial infarction occurred within 7 days before operation.
- At the same time, the lesions were treated with rotational grinding or special balloon (chocolate balloon, nicked balloon, cutting balloon, double guide wire balloon, spinous process balloon, etc.).
- NYHA Class III or IV.
- Left ventricular ejection fraction <35% .
- The target lesion was expected to be treated by fully biodegradable stent implantation, drug balloon dilatation and PTCA.
- Uncontrollable severe hypertension (systolic blood pressure >180 mmHg or diastolic blood pressure > 110 mmHg).
- Severe hepatic and renal impairment, transaminase more than 3 times the upper limit of normal, serum creatinine > 2.5 mg/dL (221 μmol/L), or chronic kidney failure requiring long-term dialysis.
- Preoperative hemoglobin <100 g/l.
- Platelet count <60×109/L.
- Cerebral Stroke occurred within 6 months of enrollment, excluding transient ischemic attack (TIA) and lacunar infarction.
- A history of active peptic ulcer or upper gastrointestinal bleeding within 6 months before enrollment.
- Patients known to be allergic to heparin, contrast media, aspirin, clopidogrel and anesthetics.
- Definite diagnosis of malignancy or life expectancy would be less than 12 months.
- Participation in clinical trials of other drugs or medical devices that did not reach the primary end point.
- The researchers judged that the patients had poor compliance and could not complete the study according to the protocol.
Angiographic exclusion criteria:
- The target lesion was in the opening position (LAD, LCX or RCA, within 5 mm of the opening) or unprotected left main coronary artery.
- Stents were implanted 10mm proximal or distal to the target lesion.
- The target lesion had unprotected branch vessels more than 2.5mm in diameter.
- The target lesion was distal to the saphenous vein or LIMA (Left internal mammary artery) /RIMA (Right internal mammary artery) bypass graft.
- Existed an aneurysm within 10mm of the target lesion.
- Angiography confirmed the presence of severe target lesion dissection (type D-F dissection (NHLBI classification) before the treatment of the Intracoronary lithotripsy balloon catheter and Intracoronary lithotripsy apparatus
- The target lesion had definite thrombosis.
- The researchers determined that the target lesion was unsuitable for vasodilation in patients.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05649488
Contact: Yanjiao Zhang, PM | +8613889120902 | yanjiao.zhang@jwmsgrp.com | |
Contact: Ying Chang, Master | +8613701259639 | c.chang@jwmsgrp.com |

Principal Investigator: | Yaling Han, Ph.D | The General Hospital of Northern Theater Command |
Responsible Party: | Shanghai Bluesail Boyuan Medical Technology Co., Ltd. |
ClinicalTrials.gov Identifier: | NCT05649488 |
Other Study ID Numbers: |
LFBY-202201 |
First Posted: | December 14, 2022 Key Record Dates |
Last Update Posted: | December 14, 2022 |
Last Verified: | December 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Coronary Artery Disease Coronary Disease Myocardial Ischemia Heart Diseases |
Cardiovascular Diseases Arteriosclerosis Arterial Occlusive Diseases Vascular Diseases |