NCT02686814

Brief Summary

The purpose of this study is to evaluate the safety and effectiveness of the 17mm MDT-2215 aortic valve bioprosthesis.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
25

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2016

Longer than P75 for not_applicable

Geographic Reach
1 country

10 active sites

Status
completed

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

December 15, 2015

Completed
2 months until next milestone

First Posted

Study publicly available on registry

February 22, 2016

Completed
8 days until next milestone

Study Start

First participant enrolled

March 1, 2016

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2018

Completed
4.2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

July 15, 2022

Completed
1.7 years until next milestone

Results Posted

Study results publicly available

April 12, 2024

Completed
Last Updated

April 12, 2024

Status Verified

October 1, 2023

Enrollment Period

2.2 years

First QC Date

December 15, 2015

Results QC Date

November 10, 2022

Last Update Submit

October 16, 2023

Conditions

Keywords

Valvular heart diseaseSevere aortic stenosisAortic valve replacement

Outcome Measures

Primary Outcomes (3)

  • Number of Participants With Changes in NYHA Classification From Baseline to 1 Year Post-procedure

    Change in New York Heart Association (NYHA) functional classification from baseline to 1 year post-procedure will be evaluated. Measure Description: Cardiac Disease with Functional Classes (lower value is more desirable than higher value) I - No limitation of physical activity. Ordinary physical activity does not cause undue fatigue, palpitation or shortness of breath. II - Slight limitation of physical activity. Comfortable at rest. Ordinary physical activity results in fatigue, palpitation, shortness of breath or chest pain. III - Marked limitation of physical activity. Comfortable at rest. Less than ordinary activity causes fatigue, palpitation, shortness of breath or chest pain. IV - Symptoms of heart failure at rest. Any physical activity causes further discomfort.

    This outcome will be identified from measurement at baseline and 1 year.

  • Effective Orifice Area Index at Baseline and 1 Year Post-procedure

    Effective Orifice Area Index (EOAI) at 1 year post-procedure will be evaluated. Effective Orifice Area Index (EOAI) in cm\^2/m\^2 EOAI = EOA/BSA Where: EOA is the effective orifice area in cm\^2, and BSA is the body surface area in m\^2

    This outcome will be measured at 1 year.

  • Number of Participants With Composite New York Heart Association (NYHA) Classification and Effective Orifice EOAI Endpoint Improvement From Baseline to 1 Year

    Composite number of participants with NYHA change from baseline to 1 year post-procedure of 1 or greater and effective number of participants with effective EOAI 0.6cm\^2/m\^2 or greater at 1 year post implant will be evaluated. The objective is met if at least 60% of the subjects achieve the specified improvement in NYHA and EOAI. See Objective 1 for NYHA definition See Objective 2 for EOAI definition

    This outcome will be identified from measurement at baseline and 1 year.

Secondary Outcomes (14)

  • Assessment of NYHA Functional Classification for Participants From Baseline up to 5 Years

    This outcome will be evaluated at baseline, discharge up to 30 days, 3-6 months, 1 year and annually thereafter up to 5 years.

  • Mean Effective Orifice Area Index (cm^2/m^2) From Baseline up to 5 Years

    This outcome will be evaluated at baseline, discharge up to 30 days, 3-6 months, 1 year and annually thereafter up to 5 years.

  • Effective Orifice Area (cm^2) From Baseline up to 5 Years

    This outcome will be evaluated at discharge up to 30 days, 3-6 months, 1 year and annually thereafter up to 5 years.

  • Peak Pressure Gradient (mmHg) From Discharge up to 5 Years

    This outcome will be evaluated at discharge up to 30 days, 3-6 months, 1 year and annually thereafter up to 5 years.

  • Mean Pressure Gradient (mmHg) From Discharge up to 5 Years

    This outcome will be evaluated at discharge up to 30 days, 3-6 months, 1 year and annually thereafter up to 5 years.

  • +9 more secondary outcomes

Study Arms (1)

MDT-2215

EXPERIMENTAL

17mm MDT-2215 aortic valve bioprosthesis

Device: 17mm MDT-2215 aortic valve bioprosthesis

Interventions

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Patient has severe aortic stenosis or regurgitation, and there is clinical indication for replacement of their native or prosthetic aortic valve with a bioprosthesis, with or without concomitant procedures, which are limited to any of the following:
  • Left atrial appendage (LAA) ligation
  • Coronary artery bypass graft (CABG)
  • Patent foramen ovale (PFO) closure
  • Ascending aortic aneurysm or dissection repair not requiring circulatory arrest
  • Resection of a sub-aortic membrane not requiring myectomy
  • Patient is geographically stable and willing to return to the implanting site for all follow-up visits
  • Patient is of legal age to provide informed consent
  • Patient has been adequately informed of risks and requirements of the trial and is willing and able to provide informed consent for participation in the clinical trial
  • In the opinion of the investigator, pre-operative imaging indicates the patient may be suitable for a 17mm size valve

You may not qualify if:

  • Patient has a pre-existing prosthetic valve or annuloplasty device in another position or requires replacement or repair of the mitral, pulmonary or tricuspid valve
  • Patient has had previous implant and then explant of the MDT-2215 aortic valve bioprosthesis
  • Patient presents with active endocarditis, active myocarditis or other systemic infection
  • Patient has an anatomical abnormality which would increase surgical risk of morbidity or mortality, including:
  • Ascending aortic aneurysm or dissection repair requiring circulatory arrest
  • Acute type A aortic dissection
  • Ventricular aneurysm
  • Porcelain aorta
  • Hostile mediastinum
  • Hypertrophic obstructive cardiomyopathy (HOCM)
  • Documented pulmonary hypertension (systolic \>60mmHg)
  • Patient has a non-cardiac major or progressive disease, with a life expectancy of less than 2 years. These conditions include, but are not limited to:
  • Child-Pugh Class C liver disease
  • Terminal cancer
  • End-stage lung disease
  • +13 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (10)

Chiba-Nishi General Hospital

Chiba, 270-2251, Japan

Location

Kobe University Hospital

Hyogo Prefecture, 650-0017, Japan

Location

Hyogo Prefectural Harima-Himeji General Medical Center

Hyogo Prefecture, 670-8560, Japan

Location

University Hospital, Kyoto Prefectural University of Medicine

Kyoto, 602-8566, Japan

Location

Kurashiki Central Hospital

Okayama, 710-8602, Japan

Location

National Cerebral and Cardiovascular Center

Osaka, 564-8565, Japan

Location

Saitama Medical Center, Jichi Medical University

Saitama, 330-8503, Japan

Location

Saitama Medical University International Medical Center

Saitama, 350-1298, Japan

Location

Tokushima Red Cross Hospital

Tokushima, 773-8502, Japan

Location

Sakakibara Heart Institute

Tokyo, 183-0003, Japan

Location

MeSH Terms

Conditions

Aortic Valve StenosisHeart Valve Diseases

Condition Hierarchy (Ancestors)

Aortic Valve DiseaseHeart DiseasesCardiovascular DiseasesVentricular Outflow Obstruction

Limitations and Caveats

Every effort was undertaken to minimize missing data. Unless otherwise specified in each objective, no statistical techniques were used to impute missing data for continuous or categorical outcomes. If a subject's data were missing for any reason, that subject was not included in that portion of the analysis. The number of subjects included in each analysis was reported so that the reader can assess the potential impact of missing data.

Results Point of Contact

Title
Jessica Halverson, Clinical Research Director
Organization
Medtronic

Study Officials

  • Yutaka Okita, MD

    Kobe University Hospital, Japan

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 15, 2015

First Posted

February 22, 2016

Study Start

March 1, 2016

Primary Completion

May 1, 2018

Study Completion

July 15, 2022

Last Updated

April 12, 2024

Results First Posted

April 12, 2024

Record last verified: 2023-10

Locations