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NCT03157531

Safety and Effectiveness of B-Laser™ in Subjects Affected With Infrainguinal PAD

Completed NA Results posted Last updated 20 June 2019
What this trial tests

NA trial testing B-Laser™ Atherectomy System in PAD in 97 participants. Completed in 11 October 2018.

Timeline
6 September 2017
Primary endpoint
27 April 2018
11 October 2018

Quick facts

Lead sponsorEximo Medical Ltd.
PhaseNA
StatusCompleted
Study typeINTERVENTIONAL
Allocationna
Designsingle group
Maskingnone
Primary purposetreatment
Enrollment97
Start date6 September 2017
Primary completion27 April 2018
Estimated completion11 October 2018
Sites11 locations across Austria, United States, Italy

Drugs / interventions tested

Conditions studied

Sponsor

Eximo Medical Ltd.

Who can join

18 and older, any sex, with PAD. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Acute Technical Success Primary · Perioperative

Reduction from baseline in residual diameter stenosis (%), prior to any adjunctive therapy, achieved by the B-Laser™ catheter A change (always a reduction) between two time points (baseline time-point and post B-Laser treatment time-point, both perioperative) is reported: * As assessed quantitatively by the core laboratory. * This endpoint will be met if the mean reduction in residual diameter stenosis is greater than 20%. * A greater reduction means better results.

GroupValue95% CI
B-Laser™ Atherectomy System33.6± 14.2
Number of Participants With Freedom From 30 Days Major Adverse Events (MAEs) Primary · 30 (+/-5) days post procedure

1. Unplanned target limb amputation above the ankle 2. Clinically Driven Target Lesion Revascularization (CDTLR) 3. Cardiovascular related deaths * As adjudicated by the Clinical Event Committee (CEC). * This endpoint will be met if the freedom from MAE rate is greater than 85%.

GroupValue95% CI
B-Laser™ Atherectomy System92
Number of Lesions With Freedom From Clinically Significant [1] Device Related Adverse Events (AEs) Requiring Intervention in the Target Vessel Secondary · Perioperative and up to 30 (+/-5) days post procedure

1. Perforation 2. Dissection 3. Distal embolization or in situ thrombus 4. Pseudoaneurysm * As adjudicated by the Clinical Event Committee (CEC). \[1\] Note: Clinically Significant AEs are defined as adverse events that REQUIRE any intervention,treatment or any hospitalization or its prolongation, in order to prevent death, persistent/significant disability/incapacity or congenital anomaly/birth defect.

GroupValue95% CI
B-Laser™ Atherectomy System107
Number of Lesions With Freedom From Non-Clinically Significant [1] Device Related Adverse Events (AEs) in the Target Vessel Secondary · Perioperative and up to 30 (+/-5) days post procedure

1. Perforation 2. Dissection 3. Distal embolization or in situ thrombus 4. Pseudoaneurysm * As adjudicated by the Clinical Event Committee (CEC). \[1\] Note: non-Clinically Significant AEs are defined as adverse events that DO NOT REQUIRE any intervention, treatment or any hospitalization or its prolongation, in order to prevent death, persistent/significant disability/incapacity or congenital anomaly/birth defect.

GroupValue95% CI
B-Laser™ Atherectomy System91
Number of Lesions With Residual Stenosis by Angiography of ≤ 30% Post-procedure Including Any Adjunctive Therapy, With no Flow Limiting Dissection. Secondary · Perioperative

Number of Lesions with residual stenosis by angiography of ≤ 30% post-procedure including any adjunctive therapy, with no flow limiting dissection. \* As assessed quantitatively by the core laboratory.

GroupValue95% CI
B-Laser™ Atherectomy System95
B-Laser™ Atherectomy System12
PAD Measurements at the 30-day Visit Post-procedure Compared to Baseline (1) Secondary · 30 (+/-5) days post procedure

1. Rutherford Classification: a doctor determined 7 stages scale (0= Asymptomatic, 6= Severe ischemic ulcers/frank gangrene) representing PAD progress, lower value = better outcome. Positive difference between time-points represents a clinical deterioration through time and vice versa. 2. Walking Impairment Questionnaire (WIQ): a patient fulfilled survey to grade physical ability representing PAD progress, has 3 sub-scales (walking speed, distance, climbing stairs), when the total score ranges between 0-100, higher value = better outcome. Positive difference between time-points represents a cl

Rutherford difference (30 day post-procedure - BL)
GroupValue95% CI
B-Laser™ Atherectomy System-1.79± 1.22
WIQ difference (30 day post-procedure - BL)
GroupValue95% CI
B-Laser™ Atherectomy System0.26± 0.28
PAD Measurements at the 30-day Visit Post-procedure Compared to Baseline (2) Secondary · 30 (+/-5) days post procedure

c) Ankle-Brachial Index (ABI): ankle/arm blood pressure ratio. Normal value ranges between 0.9-1.3. Under 0.9 index means blood has a difficult time getting to legs \& feet; 0.4-0.9 indicates mild-moderate PAD; 0.4 and lower indicates severe PAD. Positive difference between time-points represents a clinical improvement through time and vice versa.

GroupValue95% CI
B-Laser™ Atherectomy System0.24± 0.18
Number of Lesions With Clinical Success at 30 Days Secondary · 30 (+/-5) days post procedure

Defined as \< 50% stenosis at the treated lesion, as assessed quantitatively by duplex ultrasound when the peak systolic velocity ratio is \< 2.5. \* As assessed quantitatively by the core laboratory.

GroupValue95% CI
B-Laser™ Atherectomy System90
Number of Participants With Freedom From 6 Months Major Adverse Events (MAEs) [Not a Study Pre-specified Endpoint] Secondary · 6 months (+/-14 days) post procedure

1. Unplanned target limb amputation above the ankle 2. Clinically Driven Target Lesion Revascularization (CDTLR) 3. Cardiovascular related deaths * As adjudicated by the Clinical Event Committee (CEC).

GroupValue95% CI
B-Laser™ Atherectomy System86
PAD Measurements at the 6-month Visit Post-procedure Compared to Baseline [Not a Study Pre-specified Endpoint] (1) Secondary · 6-month (+/-14 days) post-procedure

1. Rutherford Classification: a doctor determined 7 stages scale (0= Asymptomatic, 6= Severe ischemic ulcers/frank gangrene) representing PAD progress, lower value = better outcome. Positive difference between time-points represents a clinical deterioration through time and vice versa. 2. Walking Impairment Questionnaire (WIQ): a patient fulfilled survey to grade physical ability representing PAD progress, has 3 sub-scales (walking speed, distance, climbing stairs), when the total score ranges between 0-100, higher value = better outcome. Positive difference between time-points represents a cl

Rutherford difference (6 month post-procedure -BL)
GroupValue95% CI
B-Laser™ Atherectomy System-2.02± 1.12
WIQ difference (6 month post-procedure -BL)
GroupValue95% CI
B-Laser™ Atherectomy System0.25± 0.30
PAD Measurements at the 6-month Visit Post-procedure Compared to Baseline [Not a Study Pre-specified Endpoint] (2) Secondary · 6-month (+/-14 days) post-procedure

c) Ankle-Brachial Index (ABI): ankle/arm blood pressure ratio. Normal value ranges between 0.9-1.3. Under 0.9 index means blood has a difficult time getting to legs \& feet; 0.4-0.9 indicates mild-moderate PAD; 0.4 and lower indicates severe PAD. Positive difference between time-points represents a clinical improvement through time and vice versa.

GroupValue95% CI
B-Laser™ Atherectomy System0.17± 0.28
Number of Lesions With 6-Month Patency [Not a Study Pre-specified Endpoint] Secondary · 6 months (+/-14 days) post procedure

Defined as \< 50% stenosis at the treated lesion, as assessed quantitatively by duplex ultrasound when the peak systolic velocity ratio is \< 2.5. \* As assessed quantitatively by the core laboratory. This is not a study pre-specified endpoint.

GroupValue95% CI
B-Laser™ Atherectomy System77

Adverse events — posted to ClinicalTrials.gov

Time frame: 6 months (+/-14 days) post procedure. Reporting threshold: 0%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

B-Laser™ Atherectomy System
Serious: 43/93 (46%)
Deaths: 2/93

Serious adverse events (10 terms)

ReactionSystemB-Laser™ Atherectomy System
Cardiac disordersCardiac disorders
Vascular disordersVascular disorders
Blood and lymphatic system disordersBlood and lymphatic system disorders
Musculoskeletal and connective tissue disordersMusculoskeletal and connective tissue disorders
Renal and urinary disordersRenal and urinary disorders
Injury, poisoning and procedural complicationsInjury, poisoning and procedural complications
Respiratory, thoracic and mediastinal disordersRespiratory, thoracic and mediastinal disorders
General disordersGeneral disorders
Infections and infestationsInfections and infestations
Nervous system disordersNervous system disorders
Other adverse events (9 terms — click to expand)

ReactionSystemB-Laser™ Atherectomy System
Vascular disordersVascular disorders
General disordersGeneral disorders
Injury, poisoning and procedural complicationsInjury, poisoning and procedural complications
Cardiac disordersCardiac disorders
Musculoskeletal and connective tissue disordersMusculoskeletal and connective tissue disorders
Respiratory, thoracic and mediastinal disordersRespiratory, thoracic and mediastinal disorders
Eye disordersEye disorders
Hepatobiliary disordersHepatobiliary disorders
Skin and subcutaneous tissue disordersSkin and subcutaneous tissue disorders

Most-reported serious reactions: Cardiac disorders, Vascular disorders, Blood and lymphatic system disorders, Musculoskeletal and connective tissue disorders, Renal and urinary disorders, Injury, poisoning and procedural complications, Respiratory, thoracic and mediastinal disorders, General disorders.

Data from ClinicalTrials.gov NCT03157531 adverse events section.

Sponsor's own description

This is a prospective, single-arm, multi-center, international, open-label, clinical study.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

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Currently open trials in the same condition.

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Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing