BRight DCB First-in-Human Study

Not Applicable

Completed

• Conditions: Peripheral Artery Disease
• Interventions: Device: BRight DCB

• Registration Number: NCT04525794
• Lead Sponsor: Biotronik CRC Inc.

Brief Summary

The primary aim of this clinical study is to assess the safety and clinical performance of the BRight drug-coated balloon (DCB) in the treatment of lower limb arteries stenosis in subjects with Peripheral Artery Disease (PAD).

The primary endpoint will be Late Lumen Loss (LLL) of the target lesion at 6 months.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2020-08-13
• Study First Submitted QC: 2020-08-24
• Study First Posted: 2020-08-25
• Study Start: 2021-02-04
• Primary Completion: 2023-09-20
• Study Completion: 2024-02-02
• Status Verified: 2024-05
• Last Update Submitted: 2024-05-21
• Last Update Posted: 2024-05-22

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 48

Inclusion Criteria

1. The subject has provided written informed consent
2. The subject is willing to participate in the clinical investigation and to comply with the study procedures and follow-up visits
3. Lifestyle-limiting claudication or rest pain requiring treatment of superficial femoral (SFA) and/or proximal popliteal artery (PPA)
4. Rutherford-Becker Clinical Category of 2, 3 or 4
5. Target vessel reference diameter ≥5 mm and ≤ 6 mm (by visual estimation)
6. De novo lesion with >50% stenosis by operator visual estimate within the SFA and/or proximal popliteal arteries in a single limb.
7. Lesion must be located ≥ 1 cm below the Common Femoral Artery (CFA) bifurcation and terminate distally at ≥ 3 cm proximal to the knee joint (radiographic joint space)
8. Single lesion length ≤100 mm for de novo stenotic lesions, or ≤ 70 mm for occluded lesions (one long lesion or multiple serial lesions) by operator visual estimate. Note: Only 1 lesion per patient can be treated. Multiple serial lesions are allowed provided that they can be treated as a single lesion with one balloon.
9. Successful guidewire crossing of lesion.
10. After pre-dilatation, the target lesion is ≤ 30% residual stenosis with no flow limiting dissection and treatable with a single balloon
11. Inflow artery is patent, free from significant lesion stenosis (>50% stenosis considered significant) as confirmed by angiography.
12. Target limb with at least 1 patent (less than 50% stenosis) tibio-peroneal run-off vessel in the target limb confirmed at baseline. (Note: treatment of outflow disease is not permitted.)

Exclusion Criteria

1. Females who are pregnant, lactating, or intended to become pregnant, or males intending to father children during the study
2. Subject under current medication known to affect CYP3A4 metabolism
3. Contraindication to dual anti-platelet therapy
4. Subject is receiving chronic anticoagulation therapy (e.g. low molecular weight heparin, warfarin, or novel direct oral anticoagulants (N(D)OACs)).
5. Known intolerance to study medications, Limus- like drug or contrast agents that in the opinion of the investigator could not be adequately pretreated
6. Current participation in an investigational drug or another device study
7. History of hemorrhagic stroke within 3 months
8. Patients with a history of Myocardial Infarction (MI) or thrombolysis within 30 days prior-index procedure
9. Previous or planned surgical or interventional procedure within 14 days before or 30 days after index procedure (successful treatment of the ipsilateral and contralateral iliac arteries is permitted prior to enrollment- contralateral iliac artery treatment with no drug eluting technology is allowed during the index procedure)
10. Prior endovascular treatment of the target lesion (e.g., POBA, DCB, BMS, DES, cutting balloons, scoring balloons, cryoplasty, thrombectomy, atherectomy, brachytherapy or laser devices)
11. Previous placement of a bypass graft proximal to the target lesion
12. Chronic renal insufficiency (eGFR < 30 mL/min within 72 hours prior to index procedure)
13. No normal proximal arterial segment in which duplex ultrasound velocity ratios could be measured.
14. Subject is unable to walk without assistance (e.g. walker, cane).
15. Subject is receiving immunosuppressant therapy.
16. Subject has known or suspected active infection at the time of the index procedure.
17. Subject has platelet count < 100,000/mm3 or > 700,000/mm3.
18. Subject has white blood cell (WBC) count < 3,000/mm3.
19. Subject is unable to tolerate blood transfusions because of religious beliefs or other reasons.
20. Subject has history of gastrointestinal hemorrhage requiring a transfusion within 3 months prior to the index procedure.
21. Life expectancy less than 12 months due to other comorbidities, that in the investigators opinion, could limit subject ability to comply with the study required follow-up visits/procedure and threaten the study scientific integrity
22. Treatment of the contralateral limb during the same procedure or within 30 days following the study procedure (exclusive of the iliac arteries, which can be treated prior to enrollment or during the index procedure if no drug eluting technology is used)
23. Non femoral vascular access
24. Target lesion would require treatment with more than one balloon
25. Known inadequate distal outflow
26. Acute or sub-acute thrombus in the target vessel
27. Aneurysmal target vessel
28. Use of adjunctive therapies (i.e. laser, atherectomy, cryoplasty, scoring/cutting balloon, brachytherapy) during the study procedure in the target lesion or target vessel
29. Presence of concentric calcification that precludes PTA pre-dilatation
30. Significant contralateral or ipsilateral common femoral disease that requires intervention during the index procedure
31. Persistent hemodynamically-significant stenosis following predilatation or residual stenosis of >30%, stent placement, or flow-limiting (Grade D or greater) dissection following pre-dilatation
32. In-stent restenosis

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
BRight DCB	BRight DCB	-

Primary Outcome Measures

Name	Time	Method
Late Lumen Loss	6 months post index procedure	Late Lumen Loss, as measure by quantitative vascular angiography (QVA)

Secondary Outcome Measures

Name	Time	Method
Device success	during procedure	Successful delivery, balloon inflation/deflation and retrieval of the intact trial device
Acute technical success	during procedure	Successful vascular access and completion of the endovascular procedure and immediate achievement of a final residual diameter stenosis of ≤30% of the treated lesion by core laboratory assessed QVA on the completion angiography with no bailout stenting
Clinically-driven Target Lesion Revascularization (cd TLR) rate	1, 6 and 12 months post index procedure	cd TLR is defined as any repeat intervention of the target lesions or surgical bypass of the target vessel performed for restenosis \> 50% or other complication involving the target lesion, after documentation of recurrent clinical symptoms of the patient.
Clinically-driven Target Vessel Revascularization (cd TVR) rate	1, 6 and 12 months post index procedure	cd TVR, defined as any repeat percutaneous intervention or surgical bypass of any segment of the target vessel, after documentation of recurrent clinical symptoms of the patient.
Target lesion primary patency	1, 6 and 12 months post index procedure	Target lesion primary patency defined as duplex ultrasound peak systolic velocity ratio (PSVR) ≤ 2.5 (if DUS is completed) or angiographic assessment which suggests stenosis ≤ 50% by QVA and the absence of Clinically-driven TLR (adjudicated by a CEC)
Change in resting target limb Ankle Brachial Index (ABI) as compared to baseline	1, 6 and 12 months post index procedure	change in ABI between baseline and follow-up
Major Adverse Event (MAE) rate	1, 6 and 12 months post index procedure	MAE is a composite of device or procedure related death within 30 days post index procedure, major index limb amputation, cd TLR
All-cause of death rate	1, 6 and 12 months post index procedure
Target lesion Binary Restenosis	1, 6 and 12 months post index procedure	Defined as duplex ultrasound peak systolic velocity ratio (PSVR) \> 2.5 (if DUS is completed) or angiographic assessment which suggests stenosis \> 50% by QVA
Embolic event of the index limb	during procedure	occurrence of embolic event as visualized on angiography
Acute procedural success	72 hours post index procedure	Technical success without the occurrence of death, major target limb amputation, thrombosis of the target lesion, or clinically-driven TLR within 72 hours of the index procedure
Amputation (minor and major) rate	1, 6 and 12 months post index procedure	rate of amputation (minor and major)
Change in the Walking Impairment questionnaire (WIQ) as compared to baseline	1, 6 and 12 months post index procedure	change in WIQ between baseline and follow-up
Change in Rutherford Classification as compared to baseline	1, 6 and 12 months post index procedure	change in the Rutherford classification between baseline and follow-up

Trial Locations

Locations (7)

Fiona Stanley Hospital; 🇦🇺 Perth, Australia

Prince of Wales Hospital; 🇦🇺 Randwick, New South Wales, Australia

Royal Perth Hospital; 🇦🇺 Perth, Australia

Royal North Shore Hospital; 🇦🇺 Sydney, Australia

Medical University Graz; 🇦🇹 Graz, Styria, Austria

Klinikum Hochsauerland; 🇩🇪 Arnsberg, Germany

Auckland City Hospital; 🇳🇿 Auckland, New Zealand