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Medtronic HAMMOCK Post Approval Study

Medtronic Hancock II® and Mosaic Mitral and Aortic Valves: A Study to Observe the Effects of the Stent Material Change to PEEK Post Approval Study (HAMMOCK PAS)

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03139721
Enrollment
122
Registered
2017-05-04
Start date
2017-06-19
Completion date
2021-06-21
Last updated
2024-08-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Heart Valve Diseases

Brief summary

This study is being conducted to satisfy the post-CE approval requirement.

Interventions

DEVICEMosaic model 305, model 310, and ultra model 305

Aortic or mitral valve replacement

Sponsors

Medtronic Cardiac Surgery
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum

Inclusion criteria

1. Subjects who require aortic or mitral valve replacement of their native valve. 2. Subject is geographically stable and willing to return to the implanting site for all follow-up visits. 3. Subject is of legal age to provide informed consent in the country where they enroll in the study. 4. Subject has been adequately informed of risks and requirements of the study and is willing and able to provide informed consent for participation in the clinical study.

Exclusion criteria

1. Subject requires concomitant replacement of the aortic and mitral valves. 2. Subject requires a replacement of a previously implanted prosthetic aortic or mitral valve. 3. Subject requires a Bentall procedure for replacement of aortic valve or aortic root.

Design outcomes

Primary

MeasureTime frameDescription
Number of Deaths, Reinterventions, or Explants1-year post implantNumber of deaths, reinterventions, or explants related to the valve

Secondary

MeasureTime frameDescription
Mean Gradient (mmHg)1-year post implantMeasured by echocardiogram via Echo Core Lab
Peak Gradient (mmHg)1-year post implantMeasured by echocardiogram via Echo Core Lab
Effective Orifice Area (EOA)1-year post implantMeasured by echocardiogram via Echo Core Lab
Effective Orifice Area Index (EOAi)1-year post implantEOA Measured by echocardiogram via Echo Core Lab/Body Surface Area
Cardiac Output1-year post implantMeasured by echocardiogram via Echo Core Lab
Cardiac Index1-year post implantCardiac Output Measured by echocardiogram via Echo Core Lab/Body Surface Area
Performance Index1-year post implantThe performance index is a measure of how effectively the external dimension of the valve is used to provide forward flow, normalized to the valve size. It is defined as effective orifice area divided by the tissue annulus area, where the tissue annulus area is calculated from the prosthetic valve size.
Transvalvular Regurgitation1-year post implantMeasured by echocardiogram via Echo Core Lab
Paravalvular Regurgitation1-year post implantMeasured by echocardiogram via Echo Core Lab
Total Regurgitation1-year post implantMeasured by echocardiogram via Echo Core Lab
New York Heart Association (NYHA) Classification1-year post implantMeasure 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.
Mean Gradient3-years post implantMeasured by echocardiogram via Echo Core Lab
Peak Gradient3-years post implantMeasured by echocardiogram via Echo Core Lab

Countries

Germany, Poland, United States

Participant flow

Recruitment details

122 subject were consented to participate. 22 were withdrawn from the study prior to study device implant.

Participants by arm

ArmCount
Aortic Valve Replacements
Subjects requiring aortic valve replacement
89
Mitral Valve Replacements
Subjects requiring mitral valve replacement
11
Total100

Baseline characteristics

CharacteristicTotalMitral Valve ReplacementsAortic Valve Replacements
Age, Continuous69.6 Years
STANDARD_DEVIATION 7.8
69.1 Years
STANDARD_DEVIATION 8.2
69.6 Years
STANDARD_DEVIATION 7.8
Body Mass Index31.0 kg/m^2
STANDARD_DEVIATION 6.5
30.6 kg/m^2
STANDARD_DEVIATION 9.8
31.0 kg/m^2
STANDARD_DEVIATION 6.1
Body Surface Area2.1 m^2
STANDARD_DEVIATION 0.3
2.0 m^2
STANDARD_DEVIATION 0.3
2.1 m^2
STANDARD_DEVIATION 0.3
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants1 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
85 Participants10 Participants75 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
14 Participants0 Participants14 Participants
Height170.4 cm
STANDARD_DEVIATION 9.6
170.9 cm
STANDARD_DEVIATION 9.2
170.3 cm
STANDARD_DEVIATION 9.7
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants0 Participants1 Participants
Race (NIH/OMB)
Asian
1 Participants0 Participants1 Participants
Race (NIH/OMB)
Black or African American
1 Participants1 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
14 Participants0 Participants14 Participants
Race (NIH/OMB)
White
83 Participants10 Participants73 Participants
Region of Enrollment
Germany
14 participants0 participants14 participants
Region of Enrollment
Poland
20 participants0 participants20 participants
Region of Enrollment
United States
66 participants11 participants55 participants
Sex: Female, Male
Female
34 Participants4 Participants30 Participants
Sex: Female, Male
Male
66 Participants7 Participants59 Participants
Weight90.0 kg
STANDARD_DEVIATION 19.9
88.2 kg
STANDARD_DEVIATION 24.5
90.2 kg
STANDARD_DEVIATION 19.4

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
8 / 891 / 11
other
Total, other adverse events
52 / 8911 / 11
serious
Total, serious adverse events
55 / 897 / 11

Outcome results

Primary

Number of Deaths, Reinterventions, or Explants

Number of deaths, reinterventions, or explants related to the valve

Time frame: 3-years post implant

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Aortic Valve ReplacementsNumber of Deaths, Reinterventions, or Explants2 Participants
Mitral Valve ReplacementsNumber of Deaths, Reinterventions, or Explants0 Participants
Primary

Number of Deaths, Reinterventions, or Explants

Number of deaths, reinterventions, or explants related to the valve

Time frame: 1-year post implant

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Aortic Valve ReplacementsNumber of Deaths, Reinterventions, or Explants2 Participants
Mitral Valve ReplacementsNumber of Deaths, Reinterventions, or Explants0 Participants
Secondary

Cardiac Index

Cardiac Output Measured by echocardiogram via Echo Core Lab/Body Surface Area

Time frame: 1-year post implant

ArmMeasureValue (MEAN)Dispersion
Aortic Valve ReplacementsCardiac Index2.4 L/min/m^2Standard Deviation 0.5
Mitral Valve ReplacementsCardiac Index2.1 L/min/m^2Standard Deviation 0.4
Secondary

Cardiac Index

Cardiac output measured by echocardiogram via Echo Core Lab/Body Surface Area

Time frame: 3-years post implant

ArmMeasureValue (MEAN)Dispersion
Aortic Valve ReplacementsCardiac Index2.4 L/min/m^2Standard Deviation 0.5
Mitral Valve ReplacementsCardiac Index1.8 L/min/m^2Standard Deviation 0.3
Secondary

Cardiac Output

Measure by echocardiogram via Echo Core Lab

Time frame: 3-years post implant

ArmMeasureValue (MEAN)Dispersion
Aortic Valve ReplacementsCardiac Output4.7 L/minStandard Deviation 1
Mitral Valve ReplacementsCardiac Output3.6 L/minStandard Deviation 0.7
Secondary

Cardiac Output

Measured by echocardiogram via Echo Core Lab

Time frame: 1-year post implant

ArmMeasureValue (MEAN)Dispersion
Aortic Valve ReplacementsCardiac Output4.7 L/minStandard Deviation 1.1
Mitral Valve ReplacementsCardiac Output4.1 L/minStandard Deviation 1.2
Secondary

Effective Orifice Area (EOA)

Measured by echocardiogram via Echo Core Lab

Time frame: 3-years post implant

ArmMeasureValue (MEAN)Dispersion
Aortic Valve ReplacementsEffective Orifice Area (EOA)1.41 cm^2Standard Deviation 0.32
Mitral Valve ReplacementsEffective Orifice Area (EOA)1.26 cm^2Standard Deviation 0.47
Secondary

Effective Orifice Area (EOA)

Measured by echocardiogram via Echo Core Lab

Time frame: 1-year post implant

ArmMeasureValue (MEAN)Dispersion
Aortic Valve ReplacementsEffective Orifice Area (EOA)1.41 cm^2Standard Deviation 0.37
Mitral Valve ReplacementsEffective Orifice Area (EOA)1.35 cm^2Standard Deviation 0.43
Secondary

Effective Orifice Area Index (EOAi)

EOA Measured by echocardiogram via Echo Core Lab/Body Surface Area

Time frame: 1-year post implant

ArmMeasureValue (MEAN)Dispersion
Aortic Valve ReplacementsEffective Orifice Area Index (EOAi)0.71 cm^2/m^2Standard Deviation 0.18
Mitral Valve ReplacementsEffective Orifice Area Index (EOAi)0.70 cm^2/m^2Standard Deviation 0.24
Secondary

Effective Orifice Area Index (EOAi)

EOA Measured by echocardiogram via Echo Core Lab/Body Surface Area

Time frame: 3-years post implant

ArmMeasureValue (MEAN)Dispersion
Aortic Valve ReplacementsEffective Orifice Area Index (EOAi)0.71 cm^2/m^2Standard Deviation 0.14
Mitral Valve ReplacementsEffective Orifice Area Index (EOAi)0.63 cm^2/m^2Standard Deviation 0.22
Secondary

Mean Gradient

Measured by echocardiogram via Echo Core Lab

Time frame: 3-years post implant

ArmMeasureValue (MEAN)Dispersion
Aortic Valve ReplacementsMean Gradient14.3 mmHgStandard Deviation 4.4
Mitral Valve ReplacementsMean Gradient5.0 mmHgStandard Deviation 1.3
Secondary

Mean Gradient (mmHg)

Measured by echocardiogram via Echo Core Lab

Time frame: 1-year post implant

ArmMeasureValue (MEAN)Dispersion
Aortic Valve ReplacementsMean Gradient (mmHg)14.3 mmHgStandard Deviation 5.1
Mitral Valve ReplacementsMean Gradient (mmHg)4.6 mmHgStandard Deviation 1.8
Secondary

New York Heart Association (NYHA) Classification

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.

Time frame: 1-year post implant

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Aortic Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA I51 Participants
Aortic Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA II21 Participants
Aortic Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA III3 Participants
Aortic Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA IV0 Participants
Mitral Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA IV0 Participants
Mitral Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA I8 Participants
Mitral Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA III0 Participants
Mitral Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA II2 Participants
Secondary

New York Heart Association (NYHA) Classification

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.

Time frame: 3-years post implant

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Aortic Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA I51 Participants
Aortic Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA II14 Participants
Aortic Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA III1 Participants
Aortic Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA IV0 Participants
Mitral Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA IV0 Participants
Mitral Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA I7 Participants
Mitral Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA III1 Participants
Mitral Valve ReplacementsNew York Heart Association (NYHA) ClassificationNYHA II1 Participants
Secondary

Paravalvular Regurgitation

Measured by echocardiogram via Echo Core Lab

Time frame: 1-year post implant

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Aortic Valve ReplacementsParavalvular RegurgitationMild6 Participants
Aortic Valve ReplacementsParavalvular RegurgitationModerate to Severe0 Participants
Aortic Valve ReplacementsParavalvular RegurgitationTrace1 Participants
Aortic Valve ReplacementsParavalvular RegurgitationSevere0 Participants
Aortic Valve ReplacementsParavalvular RegurgitationModerate3 Participants
Aortic Valve ReplacementsParavalvular RegurgitationNot recorded/unable to assess7 Participants
Aortic Valve ReplacementsParavalvular RegurgitationNone64 Participants
Mitral Valve ReplacementsParavalvular RegurgitationNot recorded/unable to assess1 Participants
Mitral Valve ReplacementsParavalvular RegurgitationNone9 Participants
Mitral Valve ReplacementsParavalvular RegurgitationTrace0 Participants
Mitral Valve ReplacementsParavalvular RegurgitationMild0 Participants
Mitral Valve ReplacementsParavalvular RegurgitationModerate0 Participants
Mitral Valve ReplacementsParavalvular RegurgitationModerate to Severe0 Participants
Mitral Valve ReplacementsParavalvular RegurgitationSevere0 Participants
Secondary

Paravalvular Regurgitation

Measured by echocardiogram via Echo Core Lab

Time frame: 3-years post implant

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Aortic Valve ReplacementsParavalvular RegurgitationMild4 Participants
Aortic Valve ReplacementsParavalvular RegurgitationModerate to Severe0 Participants
Aortic Valve ReplacementsParavalvular RegurgitationTrace1 Participants
Aortic Valve ReplacementsParavalvular RegurgitationSevere0 Participants
Aortic Valve ReplacementsParavalvular RegurgitationModerate1 Participants
Aortic Valve ReplacementsParavalvular RegurgitationNot recorded/Unable to assess7 Participants
Aortic Valve ReplacementsParavalvular RegurgitationNone46 Participants
Mitral Valve ReplacementsParavalvular RegurgitationNot recorded/Unable to assess0 Participants
Mitral Valve ReplacementsParavalvular RegurgitationNone9 Participants
Mitral Valve ReplacementsParavalvular RegurgitationTrace0 Participants
Mitral Valve ReplacementsParavalvular RegurgitationMild0 Participants
Mitral Valve ReplacementsParavalvular RegurgitationModerate0 Participants
Mitral Valve ReplacementsParavalvular RegurgitationModerate to Severe0 Participants
Mitral Valve ReplacementsParavalvular RegurgitationSevere0 Participants
Secondary

Peak Gradient

Measured by echocardiogram via Echo Core Lab

Time frame: 3-years post implant

ArmMeasureValue (MEAN)Dispersion
Aortic Valve ReplacementsPeak Gradient26.5 mmHgStandard Deviation 8.3
Mitral Valve ReplacementsPeak Gradient11.3 mmHgStandard Deviation 3.4
Secondary

Peak Gradient (mmHg)

Measured by echocardiogram via Echo Core Lab

Time frame: 1-year post implant

ArmMeasureValue (MEAN)Dispersion
Aortic Valve ReplacementsPeak Gradient (mmHg)25.6 mmHgStandard Deviation 9.2
Mitral Valve ReplacementsPeak Gradient (mmHg)11.2 mmHgStandard Deviation 4.1
Secondary

Performance Index

The performance index is a measure of how effectively the external dimension of the valve is used to provide forward flow, normalized to the valve size. It is defined as effective orifice area divided by the tissue annulus area, where the tissue annulus area is calculated from the prosthetic valve size.

Time frame: 3-years post implant

ArmMeasureValue (MEAN)Dispersion
Aortic Valve ReplacementsPerformance Index0.4 Units do not existStandard Deviation 0.1
Mitral Valve ReplacementsPerformance Index0.2 Units do not existStandard Deviation 0.1
Secondary

Performance Index

The performance index is a measure of how effectively the external dimension of the valve is used to provide forward flow, normalized to the valve size. It is defined as effective orifice area divided by the tissue annulus area, where the tissue annulus area is calculated from the prosthetic valve size.

Time frame: 1-year post implant

ArmMeasureValue (MEAN)Dispersion
Aortic Valve ReplacementsPerformance Index0.4 Units do not existStandard Deviation 0.1
Mitral Valve ReplacementsPerformance Index0.2 Units do not existStandard Deviation 0.1
Secondary

Total Regurgitation

Measured by echocardiogram via Echo Core Lab

Time frame: 1-year post implant

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Aortic Valve ReplacementsTotal RegurgitationNone58 Participants
Aortic Valve ReplacementsTotal RegurgitationModerate3 Participants
Aortic Valve ReplacementsTotal RegurgitationMild9 Participants
Aortic Valve ReplacementsTotal RegurgitationModerate to Severe0 Participants
Aortic Valve ReplacementsTotal RegurgitationSevere0 Participants
Aortic Valve ReplacementsTotal RegurgitationNot recorded/unable to assess4 Participants
Aortic Valve ReplacementsTotal RegurgitationTrace7 Participants
Mitral Valve ReplacementsTotal RegurgitationNot recorded/unable to assess1 Participants
Mitral Valve ReplacementsTotal RegurgitationNone6 Participants
Mitral Valve ReplacementsTotal RegurgitationTrace2 Participants
Mitral Valve ReplacementsTotal RegurgitationSevere0 Participants
Mitral Valve ReplacementsTotal RegurgitationModerate0 Participants
Mitral Valve ReplacementsTotal RegurgitationModerate to Severe0 Participants
Mitral Valve ReplacementsTotal RegurgitationMild1 Participants
Secondary

Total Regurgitation

Measured by echocardiogram via Echo Core Lab

Time frame: 3-years post implant

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Aortic Valve ReplacementsTotal RegurgitationModerate to Severe2 Participants
Aortic Valve ReplacementsTotal RegurgitationNone44 Participants
Aortic Valve ReplacementsTotal RegurgitationMild6 Participants
Aortic Valve ReplacementsTotal RegurgitationSevere0 Participants
Aortic Valve ReplacementsTotal RegurgitationTrace3 Participants
Aortic Valve ReplacementsTotal RegurgitationNot recorded/Unable to assess3 Participants
Aortic Valve ReplacementsTotal RegurgitationModerate1 Participants
Mitral Valve ReplacementsTotal RegurgitationNot recorded/Unable to assess0 Participants
Mitral Valve ReplacementsTotal RegurgitationTrace4 Participants
Mitral Valve ReplacementsTotal RegurgitationMild1 Participants
Mitral Valve ReplacementsTotal RegurgitationModerate to Severe0 Participants
Mitral Valve ReplacementsTotal RegurgitationNone4 Participants
Mitral Valve ReplacementsTotal RegurgitationSevere0 Participants
Mitral Valve ReplacementsTotal RegurgitationModerate0 Participants
Secondary

Transvalvular Regurgitation

Measured by echocardiogram via Echo Core Lab

Time frame: 3-years post implant

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Aortic Valve ReplacementsTransvalvular RegurgitationMild1 Participants
Aortic Valve ReplacementsTransvalvular RegurgitationModerate to Severe0 Participants
Aortic Valve ReplacementsTransvalvular RegurgitationTrace1 Participants
Aortic Valve ReplacementsTransvalvular RegurgitationSevere0 Participants
Aortic Valve ReplacementsTransvalvular RegurgitationModerate0 Participants
Aortic Valve ReplacementsTransvalvular RegurgitationNot recorded/unable to assess7 Participants
Aortic Valve ReplacementsTransvalvular RegurgitationNone50 Participants
Mitral Valve ReplacementsTransvalvular RegurgitationNot recorded/unable to assess0 Participants
Mitral Valve ReplacementsTransvalvular RegurgitationNone4 Participants
Mitral Valve ReplacementsTransvalvular RegurgitationTrace4 Participants
Mitral Valve ReplacementsTransvalvular RegurgitationMild1 Participants
Mitral Valve ReplacementsTransvalvular RegurgitationModerate0 Participants
Mitral Valve ReplacementsTransvalvular RegurgitationModerate to Severe0 Participants
Mitral Valve ReplacementsTransvalvular RegurgitationSevere0 Participants
Secondary

Transvalvular Regurgitation

Measured by echocardiogram via Echo Core Lab

Time frame: 1-year post implant

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Aortic Valve ReplacementsTransvalvular RegurgitationMild1 Participants
Aortic Valve ReplacementsTransvalvular RegurgitationModerate to Severe0 Participants
Aortic Valve ReplacementsTransvalvular RegurgitationTrace6 Participants
Aortic Valve ReplacementsTransvalvular RegurgitationSevere0 Participants
Aortic Valve ReplacementsTransvalvular RegurgitationModerate0 Participants
Aortic Valve ReplacementsTransvalvular RegurgitationNot recorded/unable to assess7 Participants
Aortic Valve ReplacementsTransvalvular RegurgitationNone67 Participants
Mitral Valve ReplacementsTransvalvular RegurgitationNot recorded/unable to assess0 Participants
Mitral Valve ReplacementsTransvalvular RegurgitationNone7 Participants
Mitral Valve ReplacementsTransvalvular RegurgitationTrace2 Participants
Mitral Valve ReplacementsTransvalvular RegurgitationMild1 Participants
Mitral Valve ReplacementsTransvalvular RegurgitationModerate0 Participants
Mitral Valve ReplacementsTransvalvular RegurgitationModerate to Severe0 Participants
Mitral Valve ReplacementsTransvalvular RegurgitationSevere0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026