NCT07697638

Brief Summary

This prospective, multi-center clinical trial evaluates the safety and efficacy of the Coronary Laser Atherectomy System for the pretreatment of coronary artery stenosis. The study consists of two phases: a first-in-human (FIM) phase enrolling 5 subjects in a single center, and a pivotal phase, which is a prospective, multi-center, randomized controlled, non-inferiority trial enrolling 218 subjects across approximately 10 centers in China. Subjects are randomized 1:1 to receive either the investigational laser system or the control Philips CVX300 laser system for lesion pretreatment prior to PCI. The primary endpoint is clinical success, defined as successful PCI with residual stenosis \<30%, TIMI flow grade 3, and no death, myocardial infarction, or target lesion revascularization through 7 days post-procedure. Secondary endpoints include device success, procedural success, MACE, target lesion failure, and target vessel failure at 30 days and 6 months. An OCT sub-study is planned for 40 subjects.

Trial Health

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Trial Health Score

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

Enrollment
218

participants targeted

Target at P75+ for not_applicable

Timeline
13mo left

Started Nov 2026

Status
not yet recruiting

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

First Submitted

Initial submission to the registry

July 5, 2026

Completed
8 days until next milestone

First Posted

Study publicly available on registry

July 13, 2026

Completed
4 months until next milestone

Study Start

First participant enrolled

November 10, 2026

Expected
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2027

6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 3, 2027

Last Updated

July 13, 2026

Status Verified

July 1, 2026

Enrollment Period

7 months

First QC Date

July 5, 2026

Last Update Submit

July 5, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Clinical Success Rate

    Clinical success is defined as target lesion after laser pretreatment, completion of PCI, and coronary angiography confirmed residual stenosis \<30%, TIMI flow grade 3, and no death, myocardial infarction, or target lesion revascularization during the perioperative period (up to 7 days post-procedure).

    Up to 7 days post-procedure

Secondary Outcomes (3)

  • Device Success Rate

    Baseline procedure

  • Procedural Success Rate

    Baseline procedure

  • Procedure-related Complication Rate

    Baseline procedure through 7 days post-procedure

Other Outcomes (12)

  • MACE Rate

    30 days and 6 months post-procedure

  • Patient-oriented Composite Endpoint (PoCE) Rate

    30 days and 6 months post-procedure

  • Target Lesion Failure (TLF) Rate

    30 days and 6 months post-procedure

  • +9 more other outcomes

Study Arms (2)

Coronary Laser Atherectomy System

EXPERIMENTAL
Device: Coronary Laser Atherectomy System

Philips CVX300 Laser Atherectomy System

ACTIVE COMPARATOR
Device: CVX300 Laser System

Interventions

The investigational Coronary Laser Atherectomy System consists of two components: (1) a Coronary Laser Console, and (2) Single-use Laser Optical Fiber Catheters.

Coronary Laser Atherectomy System

The control device is the Philips CVX300 Excimer Laser Ablation System, used with single-use ELCA (Excimer Laser Ablation) Catheters.

Philips CVX300 Laser Atherectomy System

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18-85 years, male or female.
  • Coronary angiography confirms the need for PCI.
  • Diagnosed with stable angina, silent myocardial ischemia, unstable angina, non-ST-segment elevation myocardial infarction, or STEMI \>7 days.
  • During PCI, the investigator determines that laser atherectomy is required for lesion pretreatment.
  • Able to understand the purpose of the trial, voluntarily participate and sign the informed consent form acknowledging the risks and benefits described in the informed consent document, and able to complete clinical follow-up as required.
  • Target lesion reference vessel diameter (RVD) ≥2.00 mm by visual estimate.
  • Target lesion stenosis ≥70% (visual estimate), or ≥50% and \<70% with evidence of ischemia. Evidence of ischemia includes any of the following:
  • Positive exercise stress test
  • FFR or QFR ≤0.8
  • Meets severe stenosis criteria by intracoronary imaging (IVUS or OCT): MLA \<2.4 mm² for vessels with diameter \<3.0 mm; MLA \<2.7 mm² for vessels with diameter 3.0-3.5 mm; MLA \<3.6 mm² for vessels with diameter \>3.5 mm
  • Target lesion is a small-diameter predilation balloon (balloon diameter ≤1.5 mm), uncrossable and/or undilatable lesion (undilatable under stent post-dilation balloon rated burst pressure and/or special circumstances unsuitable for dilation), including calcified lesions, CTO lesions, in-stent restenosis, stent underexpansion, and high thrombus burden lesions.
  • Guidewire successfully passes through the true lumen of the target lesion without NHLBI type C or higher dissection.

You may not qualify if:

  • Hemodynamic instability or severely reduced exercise tolerance (NYHA Class III or IV).
  • Severe heart failure with reduced ejection fraction (LVEF \<30%).
  • Intracardiac thrombus on echocardiography within 30 days prior to enrollment.
  • Has received an organ transplant or is awaiting an organ transplant.
  • Currently receiving chemotherapy or scheduled to receive chemotherapy within 30 days before or after the baseline procedure.
  • Has a bleeding diathesis, contraindication to antiplatelet or anticoagulant therapy, or is unable to receive antithrombotic therapy.
  • Chronic renal insufficiency with serum creatinine \>2.5 mg/dL (or 221 µmol/L).
  • Cerebrovascular accident (CVA), transient ischemic attack (TIA), or permanent neurological deficit that may preclude compliance with the protocol within the past 6 months.
  • Unconscious or requiring circulatory support or mechanical ventilation before PCI.
  • The target vessel (including side branches) has received any PCI within 1 month prior to the baseline procedure.
  • Planned interventional or cardiac surgical procedure within 30 days after baseline procedure.
  • Prior coronary intravascular brachytherapy at any time.
  • Allergy to medications or devices required during PCI (including but not limited to rapamycin, paclitaxel, dual antiplatelet agents, polyamide, polyurethane, PTFE, or stainless steel).
  • Other severe medical conditions (e.g., cancer, congestive heart failure) with life expectancy \<12 months.
  • Current substance abuse or addiction (e.g., alcohol, cocaine, heroin).
  • +14 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Coronary Stenosis

Condition Hierarchy (Ancestors)

Coronary DiseaseMyocardial IschemiaHeart DiseasesCardiovascular DiseasesVascular Diseases

Central Study Contacts

Study Design

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

Study Record Dates

First Submitted

July 5, 2026

First Posted

July 13, 2026

Study Start (Estimated)

November 10, 2026

Primary Completion (Estimated)

June 1, 2027

Study Completion (Estimated)

December 3, 2027

Last Updated

July 13, 2026

Record last verified: 2026-07

Data Sharing

IPD Sharing
Will not share