An interventional study of B-Laser™ Atherectomy Catheter in Peripheral Arterial Disease, sponsored by Eximo Medical Ltd.. Completed at 2 sites in Poland. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-03-03.
Sponsored by Eximo Medical Ltd. · Not applicable, Interventional, and Treatment
The aim of the study is to assess the safety and efficacy of the use of the Eximo's B-Laser™ catheter in subjects affected with Peripheral Artery Disease (PAD) in lower extremity arteries.
This is a prospective, single-arm, multi-center, international, open-label, non-randomized clinical study.
All enrolled subjects will undergo atherectomy procedure, during which the B-Laser™ catheter will be used to perform atherectomy in target lesion, followed by any other adjunctive therapy (balloon and/or stent etc.). The procedure will be done according to standard hospital procedure for atherectomy. The steps of the operation before and after the operating of the B-Laser™ device are routinely used practice and will be done according to local practice at each hospital. For the post-atherectomy stage, as an adjunctive therapy in the procedure, any approved device may be used (balloon and/or stent etc.).
Subjects will then be followed for 12 months after the procedure.
1,542 studies on the registry are indexed under Peripheral Arterial Disease; 282 are open to participants now.
This study's enrollment of 57 is below the median of 74 across 1,066 interventional studies indexed under Peripheral Arterial Disease.
Browse Peripheral Arterial Disease studies →Eximo Medical Ltd. is the lead sponsor of 2 studies on the registry; none are open to participants now.
Counted across the registry records on this site, refreshed daily.
Intraoperative inclusion criteria (by fluoroscopy angiogram):
Exclusion Criteria:
Intraoperative exclusion criteria (by fluoroscopy angiogram):
Percutaneous Transluminal Angioplasty (PTA) for treatment of infrainguinal arteries in patients with Peripheral Artery Disease (PAD), that the atherectomy part of the PTA will include an experimental atherectomy catheter, B-Laser™.
Device: B-Laser™ Atherectomy Catheter
Laser atherectomy catheter based on 355 nm
Number of Participants With 30 Day Freedom From Major Adverse Events
1. Need for emergency surgical revascularization of the target limb 2. Unplanned target limb amputation above the ankle 3. Clinically driven Target Lesion Revascularization (TLR) 4. Cardiovascular related deaths
Time frame: 30 days post procedure
Number of Participants With Perioperative (Until Discharge) Freedom From Device/Procedure* Related Adverse Events (1)
(\*NOTE: Device- or procedure-related AE refers only to the ATHERECTOMY PROCEDURE (with B-Laser™) and not the entire index procedure.) 1. Clinically Significant Perforations requiring intervention 2. Clinically Significant Dissections requiring intervention 3. Clinically Significant Embolus requiring intervention 4. Clinically Pseudo-aneurysm requiring intervention
Time frame: Perioperative (until discharge), an average of 6 days
Number of Lesions With Technical Success Rate: the Ability of the B-Laser™ Catheter to Cross the Target Lesion Stenosis Over the Wire.
The technical success will be evaluated visually by the performing physician during procedure by fluoroscopy. It is evaluated per lesion and not per subject
Time frame: Intraoperative (during the index procedure, after B-Laser™ catheter crossing, before adjunctive therapy)
Number of Participants With Perioperative (Until Discharge) Freedom From Device/Procedure* Related Adverse Events (2)
(\*NOTE: Device- or Procedure-related AE Refers Only to the ATHERECTOMY PROCEDURE (With B-Laser™) and Not the Entire Index Procedure.) 1. Emboli, defined as a new occlusion of any visualized runoff vessel which cannot be reversed with an intravascular vasodilator 2. Flow limiting dissection
Time frame: Perioperative (until discharge), an average of 6 days
Number of Participants With 30 Day Freedom From Device/Procedure* Related Adverse Events
(\*NOTE: Device- or Procedure-related AE Refers Only to the ATHERECTOMY PROCEDURE (With B-Laser™) and Not the Entire Index Procedure.) 1. Clinically Significant Dissections requiring intervention 2. Clinically Significant Embolus requiring intervention 3. Clinically Pseudo-aneurysm requiring intervention
Time frame: 30 days post procedure
Number of Lesions With Post-intervention Residual Diameter Stenosis of <30% With Adjunctive Therapy Assessed by Fluoroscopic Angiography in Cases Where Adjunctive Therapy is Medically Applicable
The ability of the B-Laser™ catheter to achieve a post-intervention residual diameter stenosis of \<30% with adjunctive therapy assessed by fluoroscopic angiography in cases where adjunctive therapy is medically applicable
Time frame: Intraoperative (at the end of the index procedure, after the last adjunctive therapy, e.g. last balloon or last stent)
Change in Ankle-Brachial Index (ABI) Post B-Laser™ Device Procedure Compared to Baseline
Change in Ankle-Brachial Index (ABI) post B-Laser™ device procedure compared to baseline. ABI is calculated as the ratio of the ankle blood pressure to the arm blood pressure. The normal value ranges between 0.9 to 1.3. The change is calculated as the value at the later time point minus the value at the earlier time point, when positive results represent increases while negative results represent decrease, so higher ABI score at the later time point represents an improvement through time and vice versa.
Time frame: baseline and 30 days, 6 months and 12 months post procedure
Change in Rutherford Classification Post B-Laser™ Device Procedure Compared to Baseline
Change in Rutherford Classification Post B-Laser™ Device Procedure Compared to Baseline. Rutherford Classification has seven stages, from Stage 0 to Stage 6, when the lower value indicate a better outcome: 0= Asymptomatic; 1= Mild claudication; 2= Moderate claudication; 3= Severe claudication; 4= Rest pain; 5= Ischemic ulceration not exceeding ulcer of the digits of the foot; 6= Severe ischemic ulcers or frank gangrene. The change is calculated as the value at the later time point minus the value at the earlier time point, when positive results represent decrease while negative results represent increases, so lower Rutherford score at the later time point represents an improvement through time and vice versa.
Time frame: baseline and 30 days, 6 months and 12 months post procedure
Change in Grade of Walking Impairment Questionnaire (WIQ) Post B-Laser™ Device Procedure Compared to Baseline
Change in Grade of Walking Impairment Questionnaire (WIQ) Post B-Laser™ Device Procedure Compared to Baseline. WIQ score ranges from 0-100 with higher score indicating a better walking outcomes. The change is calculated as the value at the later time point minus the value at the earlier time point, when positive results represent increases while negative results represent decrease, so higher WIQ score at the later time point represents an improvement through time and vice versa.
Time frame: baseline and 30 days, 6 months and 12 months post procedure
| Milestone | B-Laser™ Atherectomy Catheter |
|---|---|
| Started | 50 |
| Completed | 46 |
| Not completed | 4 |
| Withdrew: Lost to follow-up | 4 |
1. Need for emergency surgical revascularization of the target limb 2. Unplanned target limb amputation above the ankle 3. Clinically driven Target Lesion Revascularization (TLR) 4. Cardiovascular related deaths
| Participants | B-Laser™ Atherectomy Catheter |
|---|---|
| Number of Participants With 30 Day Freedom From Major Adverse Events | 50 |
(\*NOTE: Device- or procedure-related AE refers only to the ATHERECTOMY PROCEDURE (with B-Laser™) and not the entire index procedure.) 1. Clinically Significant Perforations requiring intervention 2. Clinically Significant Dissections requiring intervention 3. Clinically Significant Embolus requiring intervention 4. Clinically Pseudo-aneurysm requiring intervention
| Participants | B-Laser™ Atherectomy Catheter |
|---|---|
| Number of Participants With Perioperative (Until Discharge) Freedom From Device/Procedure* Related Adverse Events (1) | 50 |
The technical success will be evaluated visually by the performing physician during procedure by fluoroscopy. It is evaluated per lesion and not per subject
| lesions | B-Laser™ Atherectomy Catheter |
|---|---|
| Number of Lesions With Technical Success Rate: the Ability of the B-Laser™ Catheter to Cross the Target Lesion Stenosis Over the Wire. | 52 |
(\*NOTE: Device- or Procedure-related AE Refers Only to the ATHERECTOMY PROCEDURE (With B-Laser™) and Not the Entire Index Procedure.) 1. Emboli, defined as a new occlusion of any visualized runoff vessel which cannot be reversed with an intravascular vasodilator 2. Flow limiting dissection
| Participants | B-Laser™ Atherectomy Catheter |
|---|---|
| Number of Participants With Perioperative (Until Discharge) Freedom From Device/Procedure* Related Adverse Events (2) | 50 |
(\*NOTE: Device- or Procedure-related AE Refers Only to the ATHERECTOMY PROCEDURE (With B-Laser™) and Not the Entire Index Procedure.) 1. Clinically Significant Dissections requiring intervention 2. Clinically Significant Embolus requiring intervention 3. Clinically Pseudo-aneurysm requiring intervention
| Participants | B-Laser™ Atherectomy Catheter |
|---|---|
| Number of Participants With 30 Day Freedom From Device/Procedure* Related Adverse Events | 50 |
The ability of the B-Laser™ catheter to achieve a post-intervention residual diameter stenosis of \<30% with adjunctive therapy assessed by fluoroscopic angiography in cases where adjunctive therapy is medically applicable
| lesions | B-Laser™ Atherectomy Catheter |
|---|---|
| Number of Lesions With Post-intervention Residual Diameter Stenosis of <30% With Adjunctive Therapy Assessed by Fluoroscopic Angiography in Cases Where Adjunctive Therapy is Medically Applicable | 38 |
Change in Ankle-Brachial Index (ABI) post B-Laser™ device procedure compared to baseline. ABI is calculated as the ratio of the ankle blood pressure to the arm blood pressure. The normal value ranges between 0.9 to 1.3. The change is calculated as the value at the later time point minus the value at the earlier time point, when positive results represent increases while negative results represent decrease, so higher ABI score at the later time point represents an improvement through time and vice versa.
| ratio | B-Laser™ Atherectomy Catheter |
|---|---|
| baseline | 0.57 ± 0.14 |
| 30 days | 0.94 ± 0.14 |
| 6 months | 0.84 ± 0.20 |
| 12 months | 0.77 ± 0.16 |
Change in Rutherford Classification Post B-Laser™ Device Procedure Compared to Baseline. Rutherford Classification has seven stages, from Stage 0 to Stage 6, when the lower value indicate a better outcome: 0= Asymptomatic; 1= Mild claudication; 2= Moderate claudication; 3= Severe claudication; 4= Rest pain; 5= Ischemic ulceration not exceeding ulcer of the digits of the foot; 6= Severe ischemic ulcers or frank gangrene. The change is calculated as the value at the later time point minus the value at the earlier time point, when positive results represent decrease while negative results represent increases, so lower Rutherford score at the later time point represents an improvement through time and vice versa.
| Participants | B-Laser™ Atherectomy Catheter |
|---|---|
| baseline — Rutherford class 0 | 0 |
| baseline — Rutherford class 1 | 0 |
| baseline — Rutherford class 2 | 10 |
| baseline — Rutherford class 3 | 35 |
| baseline — Rutherford class 4 | 5 |
| 30 days — Rutherford class 0 | 24 |
| 30 days — Rutherford class 1 | 21 |
| 30 days — Rutherford class 2 | 3 |
| 30 days — Rutherford class 3 | 2 |
| 30 days — Rutherford class 4 | 0 |
| 6 months — Rutherford class 0 | 23 |
| 6 months — Rutherford class 1 | 12 |
| 6 months — Rutherford class 2 | 8 |
| 6 months — Rutherford class 3 | 5 |
| 6 months — Rutherford class 4 | 0 |
| 12 months — Rutherford class 0 | 8 |
| 12 months — Rutherford class 1 | 11 |
| 12 months — Rutherford class 2 | 6 |
| 12 months — Rutherford class 3 | 4 |
| 12 months — Rutherford class 4 | 0 |
Change in Grade of Walking Impairment Questionnaire (WIQ) Post B-Laser™ Device Procedure Compared to Baseline. WIQ score ranges from 0-100 with higher score indicating a better walking outcomes. The change is calculated as the value at the later time point minus the value at the earlier time point, when positive results represent increases while negative results represent decrease, so higher WIQ score at the later time point represents an improvement through time and vice versa.
| score on a scale | B-Laser™ Atherectomy Catheter |
|---|---|
| baseline | 34.16 ± 8.15 |
| 30 days | 71.72 ± 19.88 |
| 6 months | 67.84 ± 22.05 |
| 12 months | 53.30 ± 18.09 |
EX-PAD-01 study secondary efficacy endpoint of the post adjunctive therapy residual diameter stenosis, was set per protocol with a threshold at \<30%, however, in many other atherectomy studies, this threshold is set at ≤30%, Therefore results with this threshold are presented as well
| lesions | B-Laser™ Atherectomy Catheter |
|---|---|
| Number of Lesions With Post-intervention Residual Diameter Stenosis of ≤30% With Adjunctive Therapy Assessed by Fluoroscopic Angiography in Cases Where Adjunctive Therapy is Medically Applicable | 48 |
Collected over 30 days, 6 months and 12 months post procedure with B-Laser™ device. Non-serious events are listed at a 0% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| B-Laser™ Atherectomy Catheter | 0/46 (0%) | 14/46 (30.4%) | 15/46 (32.6%) |
| Event | B-Laser™ Atherectomy Catheter |
|---|---|
| Heart FailureCardiac disorders | 2/46 |
| Vascular access site hematomaInjury, poisoning and procedural complications | 2/46 |
| Superficial femoral arterial stenosis & Claudication@Leg ischemia@Disease progressionVascular disorders | 2/46 |
| Angina PectorisCardiac disorders | 1/46 |
| Chronic ischemic heart disease, unspecifiedCardiac disorders | 1/46 |
| Non STEMI@Atrioventricular block@Cardiogenic shock@Acute renal failureCardiac disorders | 1/46 |
| Rectal hemorrhageGastrointestinal disorders | 1/46 |
| Large intestine angiodysplasiaGastrointestinal disorders | 1/46 |
| Upper gastrointestinal hemorrhage@ Esophagitis@ Gastroesophageal reflux diseaseGastrointestinal disorders | 1/46 |
| Leg ischemia@Superficial femoral arterial stenosis@ClaudicationVascular disorders | 1/46 |
| Event | B-Laser™ Atherectomy Catheter |
|---|---|
| Leg ischemia@Superficial femoral arterial stenosisVascular disorders | 4/46 |
| Vascular dissectionVascular disorders | 3/46 |
| Edema lower limbGeneral disorders | 2/46 |
| Arterial occlusionVascular disorders | 1/46 |
| PseudoaneurysmInjury, poisoning and procedural complications | 1/46 |
| Leg ischemiaVascular disorders | 1/46 |
| ClaudicationVascular disorders | 1/46 |
| Nasal bleedingRespiratory, thoracic and mediastinal disorders | 1/46 |
| HyperglycemiaMetabolism and nutrition disorders | 1/46 |
| Skin infectionInfections and infestations | 1/46 |
| Age, Continuous(years) | B-Laser™ Atherectomy Catheter |
|---|---|
| Mean | 64 ± 8.5 |
| Sex: Female, Male(Participants) | B-Laser™ Atherectomy Catheter |
|---|---|
| Female | 12 |
| Male | 38 |
| Race and Ethnicity Not Collected(Participants) | B-Laser™ Atherectomy Catheter |
|---|
| ABI (Ankle Brachial Index)(ratio) | B-Laser™ Atherectomy Catheter |
|---|---|
| Mean | 0.57 ± 0.14 |
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Eximo Medical Ltd.