Shockwave Coronary Rx Lithoplasty® Study (Disrupt CAD I)

Prospective Multi-Center, Single Arm Study of the Shockwave Coronary Rx Lithoplasty® System in Coronary Arteries

Prospective, multi-center, single arm study designed to evaluate the safety and performance of the Shockwave Coronary Rx Lithoplasty® System to treat calcified lesions in the coronary arteries for the purpose of enhancing the placement of stents and reducing the ultimate residual stenosis. Patients will be followed through discharge and at 30 and 180 days.

Study Overview

• Status: Completed
• Conditions: Coronary Artery Disease
• Intervention / Treatment: Device: Shockwave Coronary Rx Lithoplasty® System

Detailed Description

Prospective, multi-center, single arm study designed to evaluate the safety and performance of the Shockwave Coronary Rx Lithoplasty® System to treat calcified lesions in the coronary arteries for the purpose of enhancing the placement of stents and reducing the ultimate residual stenosis. Patients will be enrolled and consented in the study based on history and in some instances an angiogram obtained prior to the study. The study is designed to demonstrate that the Shockwave device can safely and effectively deliver localized shockwave energy for balloon dilatation of calcified, stenotic, coronary arteries. Subjects will be prepared for PCI per the institution's standard protocol. Medications will be administered per the treatment protocol. Femoral access will be obtained using a 6F access sheath, and guiding catheter placed at the ostia of the right or left coronary artery. Baseline angiography of the culprit lesion will be performed prior to placement of a 0.014" guide wire. Baseline and either IVUS or OCT will be performed to determine the Maximum Lumen Area (MLA), percent stenosis, and volumetric lesion assessment. Baseline angiography will be performed to determine lesion length, % stenosis and reference vessel diameter. The investigational device will be prepped per the IFU and positioned at the target lesion. The distal end of the balloon catheter will be connected to the patient cable. The balloon catheter will be inflated to 4 atm and the investigator will deliver 10 pulses for 20 seconds. The balloon will then be inflated to reference vessel diameter and then deflated to reestablish flow and complete one treatment cycle. The treatment cycle will then be repeated. Angiography and either IVUS or OCT will be repeated for the treated lesion.. A coronary stent will be deployed at the site of treatment. Angiography and either IVUS or OCT will be performed following stent placement. Patients will be followed through discharge and at 30 and 180 days. A subset of up to five (5) subjects will receive an angiographic assessment at the 180 day follow up visit, per the Sponsor's discretion.

• Study Type: Interventional
• Enrollment (Actual): 60
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Australia
  • Victoria
    • Clayton, Victoria, Australia, VIC 3168
      • Monash Heart, Monash Health
    • Melbourne, Victoria, Australia, VIC 3065
      • St. Vincent's Hospital
• France
  • Toulouse, France, BP 27617
    • Clinic Pastuer
• Netherlands
  • Rotterdam, Netherlands, 3000 CA
    • Thoraxcenter, Erasmus MC
• Sweden
  • Lund, Sweden, 22185
    • Skane University Hospital- Lund
• United Kingdom
  • London, United Kingdom, SE5 9RS
    • King's College Hospital
  • London, United Kingdom, SW3 6NP
    • Royal Brompton Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 14 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

1. Patient is ≥ 18 years of age
2. Troponin must be less than or equal to the upper limit of lab normal value within 12 hours prior to the procedure
3. The target vessel must have a TIMI flow 3 at baseline
4. Patients with significant (≥ 50% diameter stenosis) native coronary artery disease including stable or unstable angina and silent ischemia, suitable for PCI
5. Ability to tolerate dual antiplatelet agent (i.e. aspirin, clopidogrel, prasugrel, or ticagrelor for 1 year and single antiplatelet therapy for life
6. Single lesion stenosis of protected LMCA, or LAD, RCA or LCX artery ≥50% in a reference vessel of 2.5 mm - 4.0 mm diameter and ≤ 32 mm length
7. Presence of calcification within the lesion on both sides of the vessel as assessed by angiography
8. Planned treatment of single lesions in one vessel
9. Ability to pass a 0.014" guide wire across the lesion
10. Patient, or authorized representative, signs a written Informed Consent form to participate in the study, prior to any study-mandated procedures
11. Patient is able and willing to comply with all assessments in the study

Exclusion Criteria:

1. Concomitant use of Atherectomy, Specialty balloon, or investigational coronary devices
2. Prior PCI procedure within the last 30 days of the index procedure
3. Patient has planned cardiovascular interventions within 30 days post index procedure
4. Second lesion with ≥50% stenosis in the same target vessel
5. Left ventricular ejection fraction < 40%
6. Patient refusing or not a candidate for emergency coronary artery bypass grafting (CABG) surgery
7. Uncontrolled severe hypertension (systolic BP >180 mm Hg or diastolic BP >110 mm Hg)
8. Severe renal failure with serum creatinine >2.5 mg/dL
9. Untreated pre-procedural hemoglobin <10 g/dL
10. Coagulopathy manifested by platelet count <100,000 or International Normalized ratio (INR) >1.7 (INR is only required in patients who have taken warfarin within 2 weeks of enrollment)
11. Patients in cardiogenic shock
12. Acute myocardial infarction (MI) within the past one (1) month, and/or elevated Troponin-I or T (with concomitant elevation of CPK) at the time of enrollment.
13. History of a stroke or transient ischemic attack (TIA) within 3 months
14. NYHA class III or IV heart failure
15. Active peptic ulcer or upper gastrointestinal (GI) bleeding within 6 months
16. Patients with a life expectancy of less than 1 year
17. Target vessel < 2.4 mm in diameter
18. Target lesion > 32 mm in length
19. Chronic Total Occlusion (CTO)
20. Previous stent procedure within 5 mm of target lesion
21. Angiographic evidence of a target lesion severe dissection prior to Coronary Lithoplasty treatment
22. Unprotected Left Main diameter stenosis ≥ 50%
23. Visible thrombus (by angiography) at target lesion site
24. Target lesion is located in a native vessel distal to anastomosis with a saphenous vein graft or LIMA/RIMA bypass
25. Patient has active systemic infection
26. Patient has connective tissue disease (e.g., Marfan's syndrome)
27. Patient has a hypercoagulable disorder
28. Uncontrolled insulin dependent diabetes
29. Patient has allergy to imaging contrast media for which they cannot be pre-medicated
30. Evidence of aneurysm in target vessel
31. Patient is pregnant or nursing

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: Lithoplasty System; Shockwave Coronary Rx Lithoplasty® System is a lithotripsy-enhanced, low-pressure balloon dilation of calcified, stenotic de novo coronary arteries prior to stent placement

Device: Shockwave Coronary Rx Lithoplasty® System; The Shockwave Coronary Rx Lithoplasty® System is a proprietary balloon catheter system designed to deliver localized, lithotripsy-enhanced, balloon dilatation of calcified, stenotic, de novo coronary arteries. Energizing the lithotripsy electrodes will generate pulsatile mechanical energy within the target treatment site and will disrupt calcium within the lesion and allow subsequent dilatation of a coronary artery stenosis using low balloon pressure. The system consists of a rapid exchange balloon catheter with integrated, internal lithotripsy electrodes and a Shockwave generator.; Other Names: Coronary Rx Lithoplasty System

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Safety - Frequency of Major Adverse Cardiac Events (MACE) Within 30 Days of the Procedure.	MACE defined as: Cardiac death; Myocardial Infarction - defined as a CK-MB level > 3 times the upper limit of lab normal (ULN) value with or without new pathologic Q wave; TVR - defined as revascularization at the target vessel (inclusive the target lesion) after the completion of the index procedure	30 days
Performance	The ability of the Shockwave System to produce acceptable residual stenosis (<50%) after stenting with no evidence of in-hospital MACE. Clinical success measured by each patient that achieves both these requirements.	Post-procedure (within 24 hours following procedure and prior to discharge)

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Quantitative Assessment of the Residual Stenosis in Treated Lesions	Angiographic success defined as success in facilitating stent deliver with <50% residual stenosis and without serious angiographic complications. Serious angiographic complications defined as severe dissection (Type D to F), perforation, abrupt closure, and persistent slow flow or persistent no reflow	Post-procedure (within 24 hours following procedure and prior to discharge)
180 Day MACE	MACE defined as: Cardiac death; Myocardial Infarction - defined as a CK-MB level > 3 times the upper limit of lab normal (ULN) value with or without new pathologic Q wave; TVR - defined as revascularization at the target vessel (inclusive the target lesion) after the completion of the index procedure	180 days post-procedure

Collaborators and Investigators

• Sponsor: Shockwave Medical, Inc.
• Investigators: Principal Investigator: Jean Fajadet, MD, Clinic Pastuer

Publications and helpful links

General Publications

• Kereiakes DJ, Di Mario C, Riley RF, Fajadet J, Shlofmitz RA, Saito S, Ali ZA, Klein AJ, Price MJ, Hill JM, Stone GW. Intravascular Lithotripsy for Treatment of Calcified Coronary Lesions: Patient-Level Pooled Analysis of the Disrupt CAD Studies. JACC Cardiovasc Interv. 2021 Jun 28;14(12):1337-1348. doi: 10.1016/j.jcin.2021.04.015. Epub 2021 May 3.
• Brinton TJ, Ali ZA, Hill JM, Meredith IT, Maehara A, Illindala U, Lansky A, Gotberg M, Van Mieghem NM, Whitbourn R, Fajadet J, Di Mario C. Feasibility of Shockwave Coronary Intravascular Lithotripsy for the Treatment of Calcified Coronary Stenoses. Circulation. 2019 Feb 5;139(6):834-836. doi: 10.1161/CIRCULATIONAHA.118.036531. No abstract available.

Study record dates

Study Major Dates

• Study Start (Actual): December 1, 2015
• Primary Completion (Actual): September 1, 2016
• Study Completion (Actual): March 1, 2017

Study Registration Dates

• First Submitted: December 22, 2015
• First Submitted That Met QC Criteria: January 6, 2016
• First Posted (Estimate): January 8, 2016

Study Record Updates

• Last Update Posted (Actual): November 2, 2018
• Last Update Submitted That Met QC Criteria: March 14, 2018
• Last Verified: March 1, 2018

More Information

Terms related to this study

• Keywords: Coronary Artery Disease; Calcified Coronary Lesions; Coronary Arterial Stenosis
• Additional Relevant MeSH Terms: Heart Diseases; Cardiovascular Diseases; Vascular Diseases; Arteriosclerosis; Arterial Occlusive Diseases; Coronary Artery Disease; Myocardial Ischemia; Coronary Disease
• Other Study ID Numbers: TD 0257