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A Clinical Trial to Evaluate the HeartWare MVAD® System (MVAdvantage)

Multi Center, Prospective, Non-Randomized, Single-Arm Trial Evaluating the Clinical Safety and Performance Of the HeartWare MVAD® System For the Treatment of Advanced Heart Failure

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01831544
Enrollment
11
Registered
2013-04-15
Start date
2015-07-14
Completion date
2017-02-16
Last updated
2025-09-23

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

Conditions

Heart Failure

Keywords

Heart Failure

Brief summary

This multi-center, prospective, non-randomized, single-arm trial will investigate the safety and performance of the HeartWare® Miniaturized Ventricular Assist Device (MVAD®) system over 24 months in subjects with advanced heart failure

Detailed description

This multi-center, prospective, non-randomized, single-arm trial will investigate the safety and performance of the Miniaturized Ventricular Assist Device (MVAD®) system over 24 months in subjects with advanced heart failure. The primary endpoint is survival at 6 months presented as a simple proportion (subjects alive on the MVAD® pump divided by endpoint eligible subjects). Secondary endpoints include the incidence of bleeding, incidence of major infections (per INTERMACS definitions), time to death, incidence of all device failures and device malfunctions, Health Status improvement, and Functional status improvement. Safety measures will include the frequency and rates of adverse events, overall and for each specific event, which will be collected throughout VAD support.

Interventions

DEVICEHeartWare MVAD® System

The HeartWare MVAD® System consists of a small, wearless, continuous flow pump and associated surgical tools and implant accessories, peripheral components which control and power the system, and a monitor which allows for programming and monitoring of the system

Sponsors

Medtronic Cardiac Rhythm and Heart Failure
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Must be ≥18 years of age at consent 2. Subjects with advanced heart failure symptoms (Class IIIB or IV) who meet one of the following): 1. on optimal medical management including dietary salt restriction and diuretics, for at least 45 out of the last 60 days and are failing to respond; or 2. in Class III or Class IV heart failure for at least 14 days and dependent on intra-aortic balloon pump (IABP) and/or inotropes. 3. Left ventricular ejection fraction ≤25%. 4. Female subjects of childbearing potential must agree to use adequate contraceptive precautions (defined as oral contraceptives, intrauterine devices, surgical contraceptives or a combination of condom and spermicide) for the duration of the study. 5. The subject has signed the informed consent form.

Exclusion criteria

1. Body Mass Index (BMI) \> 47. 2. Body Surface Area (BSA) \< 1.0 m2. 3. Partial or full mechanical circulatory support within thirty days of implant. 4. Existence of any ongoing mechanical circulatory support (MCS) other than an intra-aortic balloon pump (IABP) or TandemHeart PTVA®. 5. Prior cardiac transplant or cardiomyoplasty. 6. History of confirmed, untreated abdominal or thoracic aortic aneurysm (diameter \> 5 cm). 7. Acute myocardial infarction within 14 days of implant as diagnosed by ST or T wave changes on the electrocardiogram (ECG), diagnostic biomarkers, ongoing pain and hemodynamic abnormalities. 8. On ventilator support for \> 72 hours within the four days immediately prior to implant. 9. Pulmonary embolus within three weeks of implant as documented by computed tomography (CT) scan or nuclear scan. 10. Symptomatic cerebrovascular disease, stroke within 180 days of implant or \> 80% stenosis of carotid or cranial vessels in the absence of confirmed collateral circulation 11. Uncorrected moderate to severe aortic insufficiency. 12. Severe right ventricular failure as defined by the anticipated need for extracorporeal membrane oxygenation (ECMO) at the time of screening. 13. Active, uncontrolled infection diagnosed by a combination of clinical symptoms and laboratory testing, including but not limited to, continued positive cultures, elevated temperature and white blood cell (WBC) count, hypotension, tachycardia, generalized malaise despite appropriate antibiotic, antiviral or antifungal treatment. 14. Uncorrected thrombocytopenia or generalized coagulopathy (e.g., platelet count \< 75,000, International Normalized Ratio (INR) \> 2.0 or Partial Thromboplastin Time (PTT) \> 2.5 times control in the absence of anticoagulation therapy). 15. Intolerance to anticoagulant or antiplatelet therapies or any other peri- or postoperative therapy that the investigator may administer based upon the subject's health status. 16. Serum creatinine \> 3.0 mg/dL within 72 hours of implant or requiring dialysis. 17. Specific liver enzymes \[Aspartate Aminotransferase (AST) (SGOT), and Alanine Aminotransferase (ALT) (SGPT)\] \> 3 times upper limit of normal within 72 hours of implant. 18. A total bilirubin \> 3 mg/dL within 72 hours of implant, or biopsy proven liver cirrhosis or portal hypertension. 19. Pulmonary vascular resistance (PVR) is demonstrated to be unresponsive to pharmacological manipulation. 20. Subjects with a mechanical heart valve. 21. Etiology of heart failure is due to, or associated with, uncorrected thyroid disease, obstructive cardiomyopathy, pericardial disease, amyloidosis, active myocarditis or restrictive cardiomyopathy. 22. History of severe COPD or severe restrictive lung disease (e.g. FEV1 \< 50% predicted value). 23. Participation in any other trial involving investigational drugs or devices within 4 weeks prior to screening and last visit of the trial. 24. Severe illness, other than heart disease, which would limit survival to \< 3 years. 25. Peripheral vascular disease with rest pain or ischemic ulcers of the extremities. 26. Pregnancy and breast feeding. 27. Psychiatric disease, irreversible cognitive dysfunction or psychosocial issues that are likely to impair compliance with the CIP and LVAD. 28. Subject unwilling or unable to comply with trial requirements. 29. Technical obstacles, which pose an inordinately high surgical risk, in the judgment of the investigator. 30. Employees of the investigator or trial site, with direct involvement in this trial or other trials under the direction of the investigator or trial site, as well as family members or employees of the investigator.

Design outcomes

Primary

MeasureTime frameDescription
SurvivalSix monthPrimary Endpoint: survival at 6 months presented as a simple proportion. Transplants, explants for recovery and exchanges (to a device other than the MVAD® pump) prior to 6 month follow-up will be eligible for endpoint analysis, with survival status identified at the time of procedure.

Secondary

MeasureTime frameDescription
Survival: Number of Participants Who Died by Six Months and Two YearsSix months and two yearsSurvival: Number of participants who died by six months and two years
Incidence of Major BleedingSix months and two yearsIncidence of major bleeding, per INTERMACS definition
Incidence of All Device Failures and Device MalfunctionsSix months and two yearsIncidence of all device failures and device malfunctions per INTERMACS definition
Incidence of Major InfectionSix months and two yearsIncidence of major infection, per INTERMACS definition
Incidence of Neurological DysfunctionSix months and two yearsIncidence of neurological dysfunction per INTERMACS definition
Health Status Change, as Measured by KCCQ and EuroQol EQ-5D-5LSix month and 24 month visitHealth Status change, as measured by KCCQ and EuroQol EQ-5D-5L. Measured at baseline, 6 month visit and 24 month visit. Change from baseline at 6 month visit and 24 month visit were measured. The EQ-5D-5L overall score is between 0 and 1. 1 being the best score and 0 being the worst score. The KCCQ score is between 0 and 100. 100 being the best score and 0 being the worst score.
Functional Status Change, as Measured 6-minute Walk6 month and 24 month visitFunctional status change, as measured by 6-minute walk. Distance walked in meters in 6 minutes measured at baseline, 6 months and 24 month visit. Change from baseline at 6 month visit and 24 month visit were measured
SurvivalTwo yearsSurvival at 24 months presented as a simple proportion. Transplants, explants for recovery and exchanges (to a device other than the MVAD® pump) prior to 24 month follow-up will be eligible for endpoint analysis, with survival status identified at the time of procedure.
Length of Initial Hospital Stay (Days)Post operationLength of Initial hospital stay (days) from procedure start to discharge
Re-HospitalizationsOn or before 6 months follow-up and 24 month follow-upThe length of Re-Hospitalization, excluding planned procedures, stay in days.
TransplantationsSix months and two yearsTransplantations of subjects enrolled in study and implanted with MVAD System
ExplantsSix months and two yearsExplants (i.e. death, transplant, recovery, device exchange) of MVAD in subjects enrolled in study and implanted with MVAD System
New York Heart Association (NYHA) Functional Classification ScoreBaseline and 6 month and 24 month visitNYHA score measured at baseline, 6 month visit and 24 month visit. The NYHA scale is from I to IV. A subject with a score of IV indicates more severe heart failure than a subject with a score of I. Class I: No limitation of physical activity. Ordinary physical activity does not cause undue fatigue, palpitation or shortness of breath Class II: Slight limitation of physical activity. Comfortable at rest. Ordinary physical activity results in fatigue, palpitation, shortness of breath or chest pain Class III: Marked limitation of physical activity. Comfortable at rest. Less than ordinary activity causes fatigue, palpitation, shortness of breath or chest pain Class IV: Symptoms of heart failure at rest. Any physical activity causes further discomfort
Length of Operative Time (Hours)ImplantLength of operative time (hours)
Frequency and Rates of Adverse Events(AEs)Six months and two yearsFrequency and rates of adverse events(AEs) throughout VAD support per INTERMACS Definition

Countries

Australia, Austria, France, Germany, United Kingdom

Participant flow

Participants by arm

ArmCount
MVAD® Pump
Implant of HeartWare MVAD® System HeartWare MVAD® System: The HeartWare MVAD® System consists of a small, wearless, continuous flow pump and associated surgical tools and implant accessories, peripheral components which control and power the system, and a monitor which allows for programming and monitoring of the system
11
Total11

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyDeath1
Overall StudyStill on original MVAD device2

Baseline characteristics

CharacteristicMVAD® Pump
Age, Continuous54 years
STANDARD_DEVIATION 14.53
Blood Pressure
Diastolic
65.9 mmHg
STANDARD_DEVIATION 10.1
Blood Pressure
Systolic
101 mmHg
STANDARD_DEVIATION 15.58
Body Mass Index23.2 kg/m^2
STANDARD_DEVIATION 3.41
Body Surface Area1.9 m^2
STANDARD_DEVIATION 0.21
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
10 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
Height177.3 centimeters
STANDARD_DEVIATION 6.41
Intermacs Patient Profile
1 - Critical cardiogenic shock
0 participants
Intermacs Patient Profile
2 - Progressive decline
0 participants
Intermacs Patient Profile
3 - Inotrope dependent
6 participants
Intermacs Patient Profile
4 - Resting symptoms
5 participants
Intermacs Patient Profile
5 - Exertion intolerant
0 participants
Intermacs Patient Profile
6 - Exertion limited
0 participants
Intermacs Patient Profile
7 - Advanced NYHA III
0 participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
11 Participants
Region of Enrollment
Australia
2 participants
Region of Enrollment
Austria
2 participants
Region of Enrollment
Germany
5 participants
Region of Enrollment
United Kingdom
2 participants
Sex: Female, Male
Female
1 Participants
Sex: Female, Male
Male
10 Participants
Weight73.5 kilograms
STANDARD_DEVIATION 14.36

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
1 / 11
other
Total, other adverse events
10 / 11
serious
Total, serious adverse events
7 / 11

Outcome results

Primary

Survival

Primary Endpoint: survival at 6 months presented as a simple proportion. Transplants, explants for recovery and exchanges (to a device other than the MVAD® pump) prior to 6 month follow-up will be eligible for endpoint analysis, with survival status identified at the time of procedure.

Time frame: Six month

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
MVAD® PumpSurvival10 Participants
Secondary

Explants

Explants (i.e. death, transplant, recovery, device exchange) of MVAD in subjects enrolled in study and implanted with MVAD System

Time frame: Six months and two years

Population: The number of subjects enrolled in the study and implanted with MVAD System.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MVAD® PumpExplantsSubjects with Explants by 6 months, cumulative1 Participants
MVAD® PumpExplantsSubjects with Explants by 2 years, cumulative5 Participants
Secondary

Frequency and Rates of Adverse Events(AEs)

Frequency and rates of adverse events(AEs) throughout VAD support per INTERMACS Definition

Time frame: Six months and two years

Population: The number of subjects enrolled in the study and implanted with MVAD System.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MVAD® PumpFrequency and Rates of Adverse Events(AEs)Subjects with First Adverse Event by 6 months, cumulative.11 Participants
MVAD® PumpFrequency and Rates of Adverse Events(AEs)Subjects with first Adverse Event by 2 years, cumulative.11 Participants
Secondary

Functional Status Change, as Measured 6-minute Walk

Functional status change, as measured by 6-minute walk. Distance walked in meters in 6 minutes measured at baseline, 6 months and 24 month visit. Change from baseline at 6 month visit and 24 month visit were measured

Time frame: 6 month and 24 month visit

Population: Subjects with implant attempt

ArmMeasureGroupValue (MEAN)Dispersion
MVAD® PumpFunctional Status Change, as Measured 6-minute WalkBaseline257.83 Distance in metersStandard Deviation 93.7
MVAD® PumpFunctional Status Change, as Measured 6-minute Walk6 month visit445.4 Distance in metersStandard Deviation 71.71
MVAD® PumpFunctional Status Change, as Measured 6-minute WalkChange between 6 month visit and baseline213 Distance in metersStandard Deviation 81.97
MVAD® PumpFunctional Status Change, as Measured 6-minute Walk2 year visit402 Distance in metersStandard Deviation 74.95
MVAD® PumpFunctional Status Change, as Measured 6-minute WalkChange between 2 year visit and baseline313 Distance in metersStandard Deviation 0
Secondary

Health Status Change, as Measured by KCCQ and EuroQol EQ-5D-5L

Health Status change, as measured by KCCQ and EuroQol EQ-5D-5L. Measured at baseline, 6 month visit and 24 month visit. Change from baseline at 6 month visit and 24 month visit were measured. The EQ-5D-5L overall score is between 0 and 1. 1 being the best score and 0 being the worst score. The KCCQ score is between 0 and 100. 100 being the best score and 0 being the worst score.

Time frame: Six month and 24 month visit

Population: No data displayed because Outcome Measure has zero total participants analyzed

ArmMeasureGroupValue (MEAN)Dispersion
MVAD® PumpHealth Status Change, as Measured by KCCQ and EuroQol EQ-5D-5LKCCQ Overall Score 24 Months81.94 ScoreStandard Deviation 11.37
MVAD® PumpHealth Status Change, as Measured by KCCQ and EuroQol EQ-5D-5LEQ5D Baseline0.63 ScoreStandard Deviation 0.29
MVAD® PumpHealth Status Change, as Measured by KCCQ and EuroQol EQ-5D-5LEQ5D 6 Months0.67 ScoreStandard Deviation 0.34
MVAD® PumpHealth Status Change, as Measured by KCCQ and EuroQol EQ-5D-5LEQ5D 6 Months vs baseline0.13 ScoreStandard Deviation 0.47
MVAD® PumpHealth Status Change, as Measured by KCCQ and EuroQol EQ-5D-5LEQ5D at 24 Months0.94 ScoreStandard Deviation 0.11
MVAD® PumpHealth Status Change, as Measured by KCCQ and EuroQol EQ-5D-5LEQ5D 24 Months vs baseline0.21 ScoreStandard Deviation 0.31
MVAD® PumpHealth Status Change, as Measured by KCCQ and EuroQol EQ-5D-5LKCCQ Overall Score Baseline47.86 ScoreStandard Deviation 21.79
MVAD® PumpHealth Status Change, as Measured by KCCQ and EuroQol EQ-5D-5LKCCQ Overall Score 6 Months72.63 ScoreStandard Deviation 16.1
MVAD® PumpHealth Status Change, as Measured by KCCQ and EuroQol EQ-5D-5LKCCQ Overall Score 6 Months vs Baseline22.49 ScoreStandard Deviation 31.16
MVAD® PumpHealth Status Change, as Measured by KCCQ and EuroQol EQ-5D-5LKCCQ Overall Score 24 Months vs Baseline23.5 ScoreStandard Deviation 35.15
Secondary

Incidence of All Device Failures and Device Malfunctions

Incidence of all device failures and device malfunctions per INTERMACS definition

Time frame: Six months and two years

Population: The number of subjects enrolled in the study and implanted with MVAD System

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MVAD® PumpIncidence of All Device Failures and Device MalfunctionsSubjects with Device Malfunction by 2 years, cumulative6 Participants
MVAD® PumpIncidence of All Device Failures and Device MalfunctionsSubjects with Device Malfunction by 6 months, cumulative5 Participants
Secondary

Incidence of Major Bleeding

Incidence of major bleeding, per INTERMACS definition

Time frame: Six months and two years

Population: The number of subjects enrolled in the study and implanted with MVAD System.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MVAD® PumpIncidence of Major BleedingSubjects who had an incidence of major bleeding by 6 months, cumulative5 Participants
MVAD® PumpIncidence of Major BleedingSubjects who had an incidence of major bleeding by 2 years, cumulative7 Participants
Secondary

Incidence of Major Infection

Incidence of major infection, per INTERMACS definition

Time frame: Six months and two years

Population: The number of subjects enrolled in the study and implanted with MVAD System.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MVAD® PumpIncidence of Major InfectionSubjects with Major Infection by 6 months, cumulative3 Participants
MVAD® PumpIncidence of Major InfectionSubjects with Major Infection by 2 years, cumulative5 Participants
Secondary

Incidence of Neurological Dysfunction

Incidence of neurological dysfunction per INTERMACS definition

Time frame: Six months and two years

Population: The number of subjects enrolled in the study and implanted with MVAD System.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MVAD® PumpIncidence of Neurological DysfunctionSubjects with Neurological Dysfunction by 6 months, cumulative0 Participants
MVAD® PumpIncidence of Neurological DysfunctionSubjects with Neurological Dysfunction by 2 years, cumulative0 Participants
Secondary

Length of Initial Hospital Stay (Days)

Length of Initial hospital stay (days) from procedure start to discharge

Time frame: Post operation

Population: Subjects who underwent an MVAD implant attempt

ArmMeasureValue (MEAN)Dispersion
MVAD® PumpLength of Initial Hospital Stay (Days)40.2 DaysStandard Deviation 15.56
Secondary

Length of Operative Time (Hours)

Length of operative time (hours)

Time frame: Implant

Population: Subjects who underwent an MVAD implant attempt

ArmMeasureValue (MEAN)Dispersion
MVAD® PumpLength of Operative Time (Hours)2.78 HoursStandard Deviation 0.53
Secondary

New York Heart Association (NYHA) Functional Classification Score

NYHA score measured at baseline, 6 month visit and 24 month visit. The NYHA scale is from I to IV. A subject with a score of IV indicates more severe heart failure than a subject with a score of I. Class I: No limitation of physical activity. Ordinary physical activity does not cause undue fatigue, palpitation or shortness of breath Class II: Slight limitation of physical activity. Comfortable at rest. Ordinary physical activity results in fatigue, palpitation, shortness of breath or chest pain Class III: Marked limitation of physical activity. Comfortable at rest. Less than ordinary activity causes fatigue, palpitation, shortness of breath or chest pain Class IV: Symptoms of heart failure at rest. Any physical activity causes further discomfort

Time frame: Baseline and 6 month and 24 month visit

Population: Subjects implanted with MVAD

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
MVAD® PumpNew York Heart Association (NYHA) Functional Classification ScoreClass I0 Participants
MVAD® PumpNew York Heart Association (NYHA) Functional Classification ScoreClass III6 Participants
MVAD® PumpNew York Heart Association (NYHA) Functional Classification ScoreClass IV5 Participants
MVAD® PumpNew York Heart Association (NYHA) Functional Classification ScoreClass II0 Participants
MVAD Pump 6 MonthsNew York Heart Association (NYHA) Functional Classification ScoreClass I3 Participants
MVAD Pump 6 MonthsNew York Heart Association (NYHA) Functional Classification ScoreClass II4 Participants
MVAD Pump 6 MonthsNew York Heart Association (NYHA) Functional Classification ScoreClass III0 Participants
MVAD Pump 6 MonthsNew York Heart Association (NYHA) Functional Classification ScoreClass IV0 Participants
MVAD Pump at 24 MonthsNew York Heart Association (NYHA) Functional Classification ScoreClass III0 Participants
MVAD Pump at 24 MonthsNew York Heart Association (NYHA) Functional Classification ScoreClass I3 Participants
MVAD Pump at 24 MonthsNew York Heart Association (NYHA) Functional Classification ScoreClass II0 Participants
MVAD Pump at 24 MonthsNew York Heart Association (NYHA) Functional Classification ScoreClass IV0 Participants
Secondary

Re-Hospitalizations

The length of Re-Hospitalization, excluding planned procedures, stay in days.

Time frame: On or before 6 months follow-up and 24 month follow-up

Population: Subjects with an implant attempt

ArmMeasureGroupValue (MEAN)Dispersion
MVAD® PumpRe-HospitalizationsLength of Hospital Stay up to 6 month visit34.82 DaysStandard Deviation 110.22
MVAD® PumpRe-HospitalizationsLength of Hospital Stay Through 2 years69.91 DaysStandard Deviation 113.66
Secondary

Survival

Survival at 24 months presented as a simple proportion. Transplants, explants for recovery and exchanges (to a device other than the MVAD® pump) prior to 24 month follow-up will be eligible for endpoint analysis, with survival status identified at the time of procedure.

Time frame: Two years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
MVAD® PumpSurvival10 Participants
Secondary

Survival: Number of Participants Who Died by Six Months and Two Years

Survival: Number of participants who died by six months and two years

Time frame: Six months and two years

Population: The number of subjects enrolled in the study and implanted with MVAD System

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MVAD® PumpSurvival: Number of Participants Who Died by Six Months and Two YearsSubjects who died by 6 months, cumulative1 Participants
MVAD® PumpSurvival: Number of Participants Who Died by Six Months and Two YearsSubjects who died by 2 years, cumulative1 Participants
Secondary

Transplantations

Transplantations of subjects enrolled in study and implanted with MVAD System

Time frame: Six months and two years

Population: The number of subjects enrolled in the study and implanted with MVAD System.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
MVAD® PumpTransplantationsSubjects with transplant by 6 months, cumulative0 Participants
MVAD® PumpTransplantationsSubjects with transplant by 2 years, cumulative3 Participants

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