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N/A N=78 Treatment

EVEREST II Pivotal Study High Risk Registry (HRR)

Mitral Valve Insufficiency · Mitral Valve Regurgitation · Mitral Valve Incompetence · Mitral Regurgitation · Mitral Insufficiency

Enrolled (actual)
78
Serious AEs
88.5%
Results posted
Jan 2017
Primary outcome: Primary: Composite Functional and Structural Measures - Freedom From Death — 59 Participants

Study Design & Population

Study type
Interventional
Phase
N/A
Interventions
Percutaneous mitral valve repair using MitraClip implant (Device)
Age
Adult, Older Adult · 18+ yrs
Sex
All
Sponsor
Abbott Medical Devices
Primary completion
Mar 2008

Outcome Measures

OutcomeResultp-value
PRIMARY
Composite Functional and Structural Measures - Freedom From Death
59
PRIMARY
Percentage of Participants With Freedom From Death and Mitral Regurgitation (MR) >2+
56.4; 53.8
PRIMARY
Number of Participants With Clinical Measures of Benefit-New York Heart Association (NYHA) Class
14; 38; 16; 3
PRIMARY
Number of Participants With New York Heart Association (NYHA) Class
6; 14; 4; 0
PRIMARY
Clinical Measures of Benefit-Quality of Life (QOL) as Measured by Short Form (SF) 36
36.1; 48.7
PRIMARY
Left Ventricular End Diastolic Volume (LVEDV)
147.9
PRIMARY
Left Ventricular End Systolic Volume (LVESV)
74.3
PRIMARY
Left Ventricular (LV) Function - Internal Dimension
5.4; 3.9
PRIMARY
Number of Patients With CHF Having Hospitalization During Discharge Through 12 Months
12
PRIMARY
Number of CHF Events Leading to Hospitalizations During Discharge Through 12 Months
22
PRIMARY
Left Ventricular End Diastolic Volume (LVEDV)
147.9
PRIMARY
Left Ventricular End Systolic Volume (LVESV)
74.3
PRIMARY
Left Ventricular (LV) Function - Internal Dimension
5.4; 3.9
SECONDARY
Number of Participants Experiencing Major Adverse Events (MAE)
21
SECONDARY
Number of Participants Experiencing Major Adverse Events
33
SECONDARY
Procedural Freedom From In-hospital MAE
61
SECONDARY
Number of Participants Over 75 Years of Age With MAE
23
SECONDARY
Number of Participants Over 75 Years of Age With MAE
23
SECONDARY
Number of Participants Experiencing Major Vascular Complications
3
SECONDARY
Number of Participants Experiencing Major Vascular Complications
3
SECONDARY
Number of Participants With Major Bleeding Complications
15
SECONDARY
Number of Participants With Major Bleeding Complications
15
SECONDARY
Number of Participants With Non-cerebral Thromboembolism
1
SECONDARY
Number of Participants With Non-cerebral Thromboembolism
1
SECONDARY
Number of Participants With Thrombosis
SECONDARY
Number of Participants With Thrombosis
SECONDARY
Number of Participants With Hemolysis
SECONDARY
Number of Participants With Hemolysis
SECONDARY
Number of Participants With Dysrhythmias
8
SECONDARY
Number of Participants With Dysrhythmias
8
SECONDARY
Number of Participants With Endocarditis
1
SECONDARY
Number of Participants With Endocarditis
1
SECONDARY
Number of Participants With Atrial Septal Defect (ASD)
2
SECONDARY
Number of Participants With Atrial Septal Defect (ASD)
2
SECONDARY
Number of Participants With Mitral Valve Stenosis
2
SECONDARY
Number of Participants With Mitral Valve Stenosis
2
SECONDARY
Number of Participants With Mitral Valve Stenosis
2
SECONDARY
Number of Participants With Mitral Valve Stenosis
2
SECONDARY
Number of Participants With Mitral Valve Stenosis
2
SECONDARY
Mitral Valve Area: By Planimetry
2.9
SECONDARY
Mitral Valve Area: By Planimetry
2.9
SECONDARY
Mitral Valve Area: By Planimetry
2.9
SECONDARY
Mitral Valve Area: By Planimetry
2.9
SECONDARY
Mitral Valve Area: By Planimetry
2.9
SECONDARY
Mitral Valve Area: By Planimetry
2.9
SECONDARY
Mitral Valve Area: By Pressure Half-time
2.8
SECONDARY
Mitral Valve Area: By Pressure Half-time
2.8
SECONDARY
Mitral Valve Area: By Pressure Half-time
2.8
SECONDARY
Mitral Valve Area: By Pressure Half-time
2.8
SECONDARY
Mitral Valve Area: By Pressure Half-time
2.8
SECONDARY
Mitral Valve Area: By Pressure Half-time
2.8
SECONDARY
Mitral Valve Area Index : By Planimetry
1.5
SECONDARY
Mitral Valve Area Index : By Planimetry
1.5
SECONDARY
Mitral Valve Area Index : By Planimetry
1.5
SECONDARY
Mitral Valve Area Index : By Planimetry
1.5
SECONDARY
Mitral Valve Area Index : By Planimetry
1.5
SECONDARY
Mitral Valve Area Index : By Planimetry
1.5
SECONDARY
Mitral Valve Area (MVA) Index: by Pressure-Half Time Formula
1.6
SECONDARY
Mitral Valve Area Index : By Pressure Half-time Formula
1.5
SECONDARY
Mitral Valve Area Index : By Pressure Half-time Formula
1.5
SECONDARY
Mitral Valve Area Index : By Pressure Half-time Formula
1.5
SECONDARY
Mitral Valve Area Index : By Pressure Half-time Formula
1.5
SECONDARY
Mitral Valve Area Index : By Pressure Half-time Formula
1.5
SECONDARY
Transvalvular Mitral Valve Gradient
3.8
SECONDARY
Transvalvular Mitral Valve Gradient
3.8
SECONDARY
Transvalvular Mitral Valve Gradient
3.8
SECONDARY
Transvalvular Mitral Valve Gradient
3.8
SECONDARY
Transvalvular Mitral Valve Gradient
3.8
SECONDARY
Transvalvular Mitral Valve Gradient
3.8
SECONDARY
Mitral Valve Index
1.6
SECONDARY
Mitral Valve Index
1.6
SECONDARY
Number of Participants With New Coumadin Use
12
SECONDARY
Number of Participants With New Coumadin Use
12
SECONDARY
Number of Participants With New Coumadin Use
12
SECONDARY
Number of Participants Discharged to a Nursing Home or Skilled Nursing Facility or Hospital
6
SECONDARY
Post-procedure Length of Hospital Stay
3.9
SECONDARY
Post-procedure Intensive Care Unit (ICU)/ Critical Care Unit (CCU) Time
52.3
SECONDARY
Number of Participants With Successful Clip Implant
74
SECONDARY
Number of Participants With High Risk Procedural Success
60
SECONDARY
Number of Participants With MR Severity
0; 12; 6; 6; 0
SECONDARY
Number of Participants With MR Severity
0; 12; 6; 6; 0
SECONDARY
Number of Participants With MR Severity
0; 12; 6; 6; 0
SECONDARY
Number of Participants With MR Severity
0; 12; 6; 6; 0
SECONDARY
Number of Participants With MR Severity
0; 12; 6; 6; 0
SECONDARY
Number of Participants With MR Severity
0; 12; 6; 6; 0
SECONDARY
Number of Participants With Treatment Durability
30
SECONDARY
Number of Participants With Treatment Durability
30
SECONDARY
Number of Participants With Clinical Durability
35
SECONDARY
Number of Participants With Clinical Durability
35
SECONDARY
Number of Participants With Composite Functional and Structural Measures - Clinical Measures of Benefit-New York Heart Association (NYHA) Class
8; 20; 3; 0
SECONDARY
Number of Participants With Composite Functional and Structural Measures - Clinical Measures of Benefit-New York Heart Association (NYHA) Class
8; 20; 3; 0
SECONDARY
Number of Participants With Composite Functional and Structural Measures - Clinical Measures of Benefit-New York Heart Association (NYHA) Class
8; 20; 3; 0
SECONDARY
Number of Participants With New York Heart Association (NYHA) Class
6; 14; 4; 0
SECONDARY
Left Ventricular End-diastolic Volume (LVEDV).
133.5
SECONDARY
Left Ventricular End-diastolic Volume (LVEDV).
133.5
SECONDARY
Left Ventricular End-diastolic Volume (LVEDV).
133.5
SECONDARY
Left Ventricular End-diastolic Volume (LVEDV).
133.5
SECONDARY
Left Ventricular End-systolic Volume (LVESV).
67.2
SECONDARY
Left Ventricular End-systolic Volume (LVESV).
67.2
SECONDARY
Left Ventricular End-systolic Volume (LVESV).
67.2
SECONDARY
Left Ventricular End-systolic Volume (LVESV).
67.2
SECONDARY
Left Ventricular Measurement: Left Ventricular Internal Dimension Diastole (LVIDd), Left Ventricular Internal Dimension Systole (LVIDs)
5.5; 4.2
SECONDARY
Left Ventricular Measurement: Left Ventricular Internal Dimension Diastole (LVIDd), Left Ventricular Internal Dimension Systole (LVIDs)
5.5; 4.2
SECONDARY
Left Ventricular Measurement: Left Ventricular Internal Dimension Diastole (LVIDd), Left Ventricular Internal Dimension Systole (LVIDs)
5.5; 4.2
SECONDARY
Left Ventricular Measurement: Left Ventricular Internal Dimension Diastole (LVIDd), Left Ventricular Internal Dimension Systole (LVIDs)
5.5; 4.2
SECONDARY
Number of Days Re-hospitalized for CHF
6.6
SECONDARY
Number of Hospital Re-Admissions for Congestive Heart Failure (CHF)
22
SECONDARY
Regurgitant Volume
19.9
SECONDARY
Regurgitant Volume
19.9
SECONDARY
Regurgitant Volume
19.9
SECONDARY
Regurgitant Fraction (RF)
32.1
SECONDARY
Regurgitant Fraction
27.4
SECONDARY
Regurgitant Fraction
27.4
SECONDARY
Cardiac Output (CO)
3.8
SECONDARY
Cardiac Output
3.5
SECONDARY
Cardiac Output
3.5
SECONDARY
Cardiac Index
1.8
SECONDARY
Cardiac Index
1.8
SECONDARY
Cardiac Index
1.8
SECONDARY
Left Ventricular Ejection Fraction (LVEF)
51.5
SECONDARY
Left Ventricular Ejection Fraction (LVEF)
51.5
SECONDARY
Left Ventricular Ejection Fraction (LVEF)
51.5
SECONDARY
Left Ventricular Ejection Fraction (LVEF)
51.5
SECONDARY
Left Ventricular Ejection Fraction (LVEF)
51.5
SECONDARY
Left Ventricular Ejection Fraction (LVEF)
51.5
SECONDARY
Percentage of Participants With Freedom From Mitral Valve Surgery
95.5
SECONDARY
Percentage of Participants With Freedom From Mitral Valve Surgery
95.5
SECONDARY
Percentage of Participants With Freedom From Mitral Valve Surgery
95.5
SECONDARY
Percentage of Participants With Freedom From Mitral Valve Surgery
95.5
SECONDARY
Percentage of Participants With Freedom From Mitral Valve Surgery
95.5
SECONDARY
Percentage of Participants With Freedom From Mitral Valve Surgery
95.5
SECONDARY
Number of Participants With Mitral Valve Repair Success
37
SECONDARY
Number of Participants With Mitral Valve Repair Success
37
SECONDARY
Composite Functional and Structural Measures - Percentage of Participants With Freedom From Death
64.6
SECONDARY
Percentage of Participants With Composite Functional and Structural Measures - Freedom From Death and MR >2+
49.3; 46.2
SECONDARY
Number of Participants With Device Embolization or Single Leaflet Device Attachment
0; 0
SECONDARY
Number of Participants With Device Embolization or Single Leaflet Device Attachment
0; 0
SECONDARY
Number of Participants With Device Embolization or Single Leaflet Device Attachment
0; 0
SECONDARY
Number of Participants With Device Embolization or Single Leaflet Device Attachment
0; 0
SECONDARY
Number of Participants With Device Embolization or Single Leaflet Device Attachment
0; 0
SECONDARY
Number of Participants With Mitral Valve Surgery Post-MitraClip Procedure
2
SECONDARY
Number of Participants With Second MitraClip Device Implanted
2
SECONDARY
Percentage of Participants With Freedom From All-Cause Mortality and Mitral Valve Surgery
41.2
SECONDARY
Percentage of Participants With Freedom From All-Cause Mortality and Mitral Valve Surgery
41.2
SECONDARY
Percentage of Participants With Freedom From All-Cause Mortality and Mitral Valve Surgery
41.2
SECONDARY
Percentage of Participants With Freedom From All-Cause Mortality and Mitral Valve Surgery
41.2
SECONDARY
Percentage of Participants With Freedom From All-Cause Mortality and Mitral Valve Surgery
41.2
SECONDARY
Number of Participants With Mitral Valve Replacement
2
SECONDARY
Number of Participants With Mitral Valve Replacement
2
SECONDARY
Number of Participants With Mitral Valve Replacement
2
SECONDARY
Number of Participants With Mitral Valve Replacement
2

Summary

Prospective, multi-center, single arm registry. Clinical follow-up at discharge, 30 days, 6, 12, 18 and 24, months, and 3, 4 and 5 years. Concurrent Control (CC) group identified retrospectively from the patients screened for the HRR who did not enroll; patient survival determined at 12 months. NCT00209274 (EVEREST II RCT) Intended use Percutaneous reduction of clinically significant mitral regurgitation in symptomatic patients who are considered to be high risk for operative mortality (high surgical risk).

Eligibility Criteria

Inclusion Criteria

Candidates for the high risk arm of the study must meet all of the following inclusion criteria:

  • Predicted procedural mortality risk calculated using the STS surgical risk calculator of ≥ 12% or in the judgment of the surgeon investigator the patient is considered a high risk surgical candidate due to the presence of one of the following indications:
  • Porcelain aorta or mobile ascending aortic atheroma
  • Post-radiation mediastinum
  • Previous mediastinitis
  • Functional MR with EF 2.5 mg/dL ii) Prior chest surgery iii) Age over 75 iv) EF 60 mm as defined in Appendix A of the EVEREST II protocol.
  • Mitral valve orifice area < 4.0 cm2 as defined in Appendix A of the EVEREST II protocol.
  • If leaflet flail is present:
  • Flail Width: the width of the flail segment is greater than or equal to 15 mm, as defined in Section 4.3 and Appendix A, or
  • Flail Gap: the flail gap is greater than or equal to 10 mm, as defined in Section 4.3 and Appendix A.
  • If leaflet tethering is present:

a). Coaptation Length: the vertical coaptation length is less than 2 mm, as defined in Section 4.3 and Appendix A.

  • Leaflet anatomy which may preclude clip implantation, proper clip positioning on the leaflets or sufficient reduction in MR. This may include:
  • Evidence of calcification in the grasping area of the A2 and/or P2 scallops
  • Presence of a significant cleft of A2 or P2 scallops
  • More than one anatomic criteria dimensionally near the exclusion limits
  • Bileaflet flail or severe bileaflet prolapse
  • Lack of both primary and secondary chordal support
  • Hemodynamic instability defined as systolic pressure < 90 mmHg without after load reduction or cardiogenic shock or the need for inotropic support or intra-aortic balloon pump.
  • Need for emergent or urgent surgery for any reason.
  • Prior mitral valve leaflet surgery or any currently implanted mechanical prosthetic mitral valve.
  • Echocardiographic evidence of intracardiac mass, thrombus or vegetation.
  • Active endocarditis or active rheumatic heart disease or leaflets degenerated from rheumatic diseased (i.e. noncompliant, perforated).
  • History of bleeding diathesis or coagulopathy or subject will refuse blood transfusions.
  • Active infections requiring current antibiotic therapy (if temporary illness, patients may enroll 2 weeks after discontinuation of antibiotics). Patients must be free from infection prior to treatment. Any required dental work should be completed a minimum of 3 weeks prior to treatment.
  • Intravenous drug abuse or suspected inability to adhere to follow-up.
  • Patients in whom transesophageal echocardiography (TEE) is contraindicated.
  • A known hypersensitivity or contraindication to study or
  • In the judgment of the Investigator, patients in whom the presence of a permanent pacemaker or pacing leads would interfere with placement of the test device or the placement of the test device would disrupt the leads.
  • Currently participating in an investigational drug or another device study that has not completed the primary endpoint or that clinically interferes with the current study endpoints. [Note: Trials requiring extended follow-up for products that were investigational, but have since become commercially available, are not considered investigational trials].
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT01940120). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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