Safety and Efficacy Study of Lotus Valve for Transcatheter Aortic Valve Replacement (REPRISE Japan)

NCT ID: NCT02491255

Last Updated: 2021-09-28

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 70 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2015-06-22
• Study Completion Date: 2021-09-13

Brief Summary

The objective of this study is to confirm the safety and effectiveness of the Lotus™ Valve System in the Japanese medical environment for transcatheter aortic valve replacement (TAVR) in symptomatic subjects with calcific, severe native aortic stenosis who are considered at high or extreme risk for surgical valve replacement.

Detailed Description

A prospective, multicenter trial designed to confirm that the safety and effectiveness of the Lotus Valve System in the Japanese medical environment are consistent with the REPRISE III results for TAVR in symptomatic subjects who have calcific, severe native aortic stenosis and who are at extreme or high risk for surgical valve replacement.

Conditions

Aortic Stenosis

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Lotus Valve System

Transcatheter aortic valve replacement (TAVR) with Lotus Valve System

Group Type: EXPERIMENTAL

Lotus Valve System

Intervention Type: DEVICE

Device: Lotus Valve System

Interventions

Lotus Valve System

Device: Lotus Valve System

Intervention Type: DEVICE

Eligibility Criteria

Inclusion Criteria

• Frailty as indicated by at least one of the following: 5-meter walk >6 seconds, Katz ADL score of 3/6 or less, body mass index <21, wheelchair bound, unable to live independently
• Age ≥90 years
• Other evidence that subject is at high or extreme risk for surgical valve replacement (CRC must confirm agreement with site heart team that subject meets high or extreme risk definition)

IC5. Heart team (which must include a cardiac interventionalist and an experienced cardiac surgeon) assessment that the subject is likely to benefit from valve replacement.

IC6. Subject (or legal representative) understands the study requirements and the treatment procedures, and provides written informed consent.

IC7. Subject, family member, and/or legal representative agree(s) and subject is capable of returning to the study hospital for all required scheduled follow up visits.

IC8. Subject must be at least 20 years old.

IC9. For subjects not suitable for iliofemoral access (because of caliber of the iliofemoral vessels, severe tortuosity or other factors preventing safe iliofemoral access), trans-aortic access is deemed appropriate by the heart team and confirmed by the CRC. This inclusion criterion is only applicable to the TAo substudy and the 21mm substudy if the transaortic approach is used.

Note: Extreme operative risk and high operative risk are defined as follows:

Extreme Operative Risk: Predicted operative mortality or serious, irreversible morbidity risk ≥50% at 30 days.

High Operative Risk: Predicted operative mortality or serious, irreversible morbidity risk ≥15% at 30 days.

EC1. Subject has a congenital unicuspid or bicuspid aortic valve.

EC2. Subject has had an acute myocardial infarction within 30 days prior to the index procedure (defined as Q-wave MI or non-Q-wave MI with total CK elevation ≥ twice normal in the presence of CK-MB elevation and/or troponin elevation).

EC3. Subject has had a cerebrovascular accident or transient ischemic attack within the past 6 months prior to study enrollment.

EC4. Subject has end-stage renal disease or has eGFR <20. Note: eGFR(ml/min/1.73m2)=194×Cr-1.094×Age-0.287×(If female×0.739)

EC5. Subject has a pre-existing prosthetic aortic or mitral valve.

EC6. Subject has severe aortic, tricuspid, or mitral regurgitation.

EC7. Subject has a need for emergency surgery for any reason.

EC8. Subject has a history of endocarditis within 6 months of index procedure or evidence of an active systemic infection or sepsis.

EC9. Subject has echocardiographic evidence of new intra-cardiac vegetation or intraventricular or paravalvular thrombus requiring intervention.

EC10. Subject has Hgb <9 g/dL, platelet count <50,000 cells/mm3 or >700,000 cells/mm3, or white blood cell count <1,000 cells/mm3.

EC11. Subject requires chronic anticoagulation therapy after the implant procedure and cannot be treated with warfarin (other anticoagulants are not permitted in the first month) for at least 1 month concomitant with either aspirin or P2Y12 inhibitor (clopidogrel or ticlopidine, but prasugrel is not allowed).

EC12. Subject had a gastrointestinal bleed requiring hospitalization or transfusion within the past 3 months, or has other clinically significant bleeding diathesis or coagulopathy that would preclude treatment with required antiplatelet regimen, or will refuse transfusions.

EC13. Subject has known hypersensitivity to contrast agents that cannot be adequately pre-medicated, or has known hypersensitivity to aspirin, all P2Y12 inhibitors, heparin, nickel, tantalum, titanium, or polyurethanes.

EC14. Subject has a life expectancy of less than 12 months due to non-cardiac, comorbid conditions based on the assessment of the investigator at the time of enrollment.

EC15. Subject has hypertrophic obstructive cardiomyopathy.

EC16. Subject has any therapeutic invasive cardiac or vascular procedure within 30 days prior to the index procedure (except for balloon aortic valvuloplasty or pacemaker implantation, which are allowed).

EC17. Subject has untreated coronary artery disease, which in the opinion of the treating physician is clinically significant and requires revascularization.

EC18. Subject has severe left ventricular dysfunction with ejection fraction <20%.

EC19. Subject is in cardiogenic shock or has hemodynamic instability requiring inotropic support or mechanical support devices.

EC20. Subject has severe vascular disease that would preclude safe access (e.g., aneurysm with thrombus that cannot be crossed safely, marked tortuosity, significant narrowing of the abdominal aorta, severe unfolding of the thoracic aorta, or symptomatic carotid or vertebral disease). This exclusion criterion is only applicable to the TF study and the 21mm substudy if the transfemoral or transiliac approach is used.

EC21. Subject has thick (>5 mm) protruding or ulcerated atheroma in the aortic arch. This exclusion criterion is only applicable to the TF study and the 21mm substudy if the transfemoral or transiliac approach is used.

EC22. Subject has arterial access that is not acceptable for the test device delivery systems as defined in the device Instructions For Use.

EC23. Subject has current problems with substance abuse (e.g., alcohol, etc.).

EC24. Subject is participating in another investigational drug or device study that has not reached its primary endpoint.

EC25. Subject has untreated conduction system disorder (e.g., Type II second degree atrioventricular block) that in the opinion of the treating physician is clinically significant and requires a pacemaker implantation. Enrollment is permissible after permanent pacemaker implantation.

EC26. Subject has severe incapacitating dementia.

EC27. Subject is a woman who is pregnant, nursing (a pregnancy test must be performed in women of potential child-bearing) or wishes to be pregnant

• Minimum Eligible Age: 20 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Boston Scientific Corporation

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Yoshiki Sawa

Role: PRINCIPAL_INVESTIGATOR

Osaka University Hospital

Shigeru Saito

Role: PRINCIPAL_INVESTIGATOR

Shonankamakura General Hospital

Locations

Shonankamakura General Hospital

Kamakura, Kanagawa, Japan

Kurashiki Central Hospital

Kurashiki, Okayama-ken, Japan

Osaka University Hospital

Suita, Osaka, Japan

Sakakibara Heart Institute

Fuchū, Tokyo, Japan

Keio University Hospital

Shinjuku, Tokyo, Japan

Countries

Japan

Other Identifiers

S6002

Identifier Type: -

Identifier Source: org_study_id