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SHIELD II Clinical Investigation

Supporting Patients Undergoing HIgh-Risk PCI Using a High-Flow PErcutaneous Left Ventricular Support Device (SHIELD II)

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02468778
Acronym
SHIELD II
Enrollment
54
Registered
2015-06-11
Start date
2015-08-31
Completion date
2021-05-17
Last updated
2022-06-28

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

Conditions

Coronary Artery Disease

Keywords

HeartMate PHP, High Risk PCI, Mechanical circulatory support device, MCS, Abbott, SJM-CIP-10148

Brief summary

The HeartMate PHP System is a temporary (\<6 hours) ventricular assist device indicated for use during high-risk percutaneous coronary interventions (PCI) performed electively or urgently in hemodynamically stable patients with severe coronary artery disease, when a heart team, including a cardiac surgeon, has determined high-risk PCI is the appropriate therapeutic option. Use of the HeartMate PHP Systems in these patients may prevent hemodynamic instability, which can result from repeat episodes of reversible myocardial ischemia that occur during planned temporary coronary occlusions and may reduce peri-and post-procedural adverse events.

Detailed description

Prospective, randomized, multi-center, open-label trial of the HeartMate PHP at up to 120 sites in the United States (U.S.). Control device will be any Abiomed Impella device approved for use in high-risk PCI. This clinical investigation is divided into two phases, a feasibility phase and a pivotal phase. * Feasibility Phase: Includes 75 roll-in and 120 randomized subjects registered under the clinical investigational plan (CIP) versions 2-4 at 48 sites in the U.S. prior to January 30, 2017 * Pivotal Phase: Includes subjects to be registered under Version F or a later version of the CIP at up to 120 sites in the U.S. Non-randomized Roll-in Cohort: Up to 480 subjects with the HeartMate PHP. Randomized Cohort: A minimum of 473 and a maximum of 716 subjects will be randomized in a 2:1 ratio to the HeartMate PHP and Impella.

Interventions

The HeartMate PHP System is a temporary (\<6 hours) ventricular assist device indicated for use during high-risk percutaneous coronary interventions (PCI) performed electively or urgently in hemodynamically stable patients with severe coronary artery disease, when a heart team, including a cardiac surgeon, has determined high-risk PCI is an acceptable therapeutic option. Use of the HeartMate PHP Systems in these patients may prevent hemodynamic instability, which can result from repeat episodes of reversible myocardial ischemia that occur during planned temporary coronary occlusions and may reduce peri-and post-procedural adverse events.

DEVICEAny Abiomed Impella® device approved for use in high-risk PCI

Any Abiomed Impella® device approved for use in high-risk PCI.

Sponsors

Abbott Medical Devices
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
No

Inclusion criteria

* At least 18 years of age * Subject is undergoing elective or urgent high-risk PCI procedure and is hemodynamically stable * Subject is indicated for a revascularization of at least one de novo or restenotic lesion in a native coronary vessel or bypass graft * A heart team, including a cardiac surgeon, has determined high risk PCI is an acceptable therapeutic option * Subject must provide written informed consent prior to any clinical investigation related procedure Imaging Inclusion Criteria: • The presence of complex coronary artery disease (CAD) makes hemodynamic instability resulting from repeat episodes of reversible myocardial ischemia during PCI likely. Complex CAD is defined as an ejection fraction of \<50% by echocardiographic assessment AND at least one of the following: * intervention of the last patent coronary conduit, OR * intervention of an unprotected left main artery, OR * intervention on patient presenting with triple vessel disease defined as at least one significant stenosis (at least 50% diameter stenosis on visual assessment) in all three major epicardial territories

Exclusion criteria

* Emergency PCI * Any prior coronary revascularization within the last 6 months * Any MI with elevated cardiac biomarker (creatinine kinase-MB (CK-MB) or troponin \>1X upper limit of normal (ULN)) and no evidence of at least 1 consecutive CK-MB or troponin value trending downward from previous value (at least 4 hours apart) OR ST Elevation MI (STEMI) within 72 hours prior to the index procedure regardless of the level of cardiac biomarker * Cardiac arrest within 24 hours of procedure requiring cardiopulmonary resuscitation (CPR) or defibrillation * Any use of a mechanical circulatory support device within 14 days prior to the index procedure (Note: Subjects must be hemodynamically stable without any hemodynamic support to be eligible for this clinical investigation.) * Hemodynamic support with a mechanical circulatory support device (e.g.,the HeartMate PHP, Impella, intra-aortic balloon pump (IABP), or extracorporeal membrane oxygenation (ECMO)), post-PCI is anticipated * Any condition that requires discontinuation of antiplatelet and/or anticoagulant therapy within 90 days following the index procedure (e.g., planned noncardiac surgery) * Any use of vasopressors or inotropes within 24 hours prior to the index procedure * Staged PCI is planned within 90 days following device removal * Cardiogenic shock (SBP \<90 mmHg for \>1 hour with either cool clammy skin OR oliguria OR altered sensorium AND cardiac index \<2.2 L/min/m\^2) * History of aortic valve replacement or repair * Severe peripheral vascular disease that will preclude the use of a 14F access sheath, which is required for the insertion of the HeartMate PHP catheter (If the investigator is unsure of the presence or severity of the peripheral vascular diseases for study device access, an appropriate imaging assessment (e.g., duplex ultrasound, angiogram or computerized tomography) should be performed to verify the access before randomization.) * Known abnormalities of the aorta that would preclude surgery, including aneurysms and significant tortuosity or calcifications * Subject is on hemodialysis * Liver dysfunction with elevation of liver enzymes and bilirubin levels to ≥ 3X ULN or Internationalized Normalized Ratio (INR) ≥1.6 or lactate dehydrogenase (LDH) \> 2.5X ULN * Abnormal coagulation parameters (platelet count ≤75000/mm\^3 or INR ≥1.6 or fibrinogen ≤1.5 g/l) * Active systemic infection requiring treatment with antibiotics * Subject had active COVID-19 symptoms and/or a positive test result within the prior 2 months * Stroke or transient ischemic attack (TIA) within 6 months of procedure * Any allergy or intolerance to ionic and nonionic contrast media, anticoagulants (including heparin), or antiplatelet therapy drugs that cannot be adequately premedicated * Subject is pregnant (For a female subject of childbearing potential, a pregnancy test must be performed within 14 days (≤14 days) prior to the index procedure per site standard test) * Participation in another clinical study of an investigational drug or device that has not met its primary endpoint * Presence of other anatomic or comorbid conditions, or other medical, social, or psychological conditions that, in the investigator's opinion, could limit the subject's ability to participate in the clinical investigation or to comply with followup requirements, or impact the scientific soundness of the clinical investigation results * Life expectancy \<1 year Imaging

Design outcomes

Primary

MeasureTime frameDescription
Rate of Participants With Composite of Cardiovascular Death, Myocardial Infarction, Stroke, Any Unplanned Repeat Revascularization (PCI/CABG), Bleeding (BARC 3/5) up to 14 Days Post-device Removal, Severe Hypotension, and Change in Aortic Insufficiency90 DaysThe primary endpoint, including the following components representing important safety and effectiveness endpoints will be evaluated using the difference in event rates in the ITT population. * Cardiovascular Death * Myocardial infarction (MI) * Stroke * Any unplanned repeat revascularization (PCI or CABG) * Bleeding (BARC 3 or 5) up to 14 days post-device removal * Severe hypotension, defined as: systolic blood pressure (SBP) or augmented diastolic pressure (whichever is greater) \<90 mmHg while on device support requiring (1) more than one administration of OR (2) continuous infusion of inotropic/pressor medications to restore hemodynamics * Change in aortic insufficiency from baseline to 90 days by echocardiographic assessment.

Countries

United States

Participant flow

Recruitment details

A total of 18 PHP roll-in and 36 randomized subjects were registered at 15 sites in the pivotal phase of the study.

Participants by arm

ArmCount
HeartMate PHP (Roll-in)
Participants who receive a HeartMate PHP device without randomisation will be included in this arm HeartMate PHP: The HeartMate PHP System is a temporary (\<6 hours) ventricular assist device indicated for use during high-risk percutaneous coronary interventions (PCI) performed electively or urgently in hemodynamically stable patients with severe coronary artery disease, when a heart team, including a cardiac surgeon, has determined high-risk PCI is an acceptable therapeutic option. Use of the HeartMate PHP Systems in these patients may prevent hemodynamic instability, which can result from repeat episodes of reversible myocardial ischemia that occur during planned temporary coronary occlusions and may reduce peri-and post-procedural adverse events.
18
HeartMate PHP (Randomised)
Participants who receive a HeartMate PHP device after randomisation will be included in this arm HeartMate PHP: The HeartMate PHP System is a temporary (\<6 hours) ventricular assist device indicated for use during high-risk percutaneous coronary interventions (PCI) performed electively or urgently in hemodynamically stable patients with severe coronary artery disease, when a heart team, including a cardiac surgeon, has determined high-risk PCI is an acceptable therapeutic option. Use of the HeartMate PHP Systems in these patients may prevent hemodynamic instability, which can result from repeat episodes of reversible myocardial ischemia that occur during planned temporary coronary occlusions and may reduce peri-and post-procedural adverse events.
26
Any Abiomed Impella® (Randomised)
Participants who receive any Abiomed Impella® Device approved for use in high-risk PCI after randomisation will be included in this arm Any Abiomed Impella® device approved for use in high-risk PCI: Any Abiomed Impella® device approved for use in high-risk PCI.
10
Total54

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyDeath210
Overall StudyLost to Follow-up122
Overall StudyWithdrawal by Subject011

Baseline characteristics

CharacteristicHeartMate PHP (Roll-in)HeartMate PHP (Randomised)Any Abiomed Impella® (Randomised)Total
Age, Continuous73.3 years
STANDARD_DEVIATION 8.7
67.8 years
STANDARD_DEVIATION 8.8
72.2 years
STANDARD_DEVIATION 6.7
70.5 years
STANDARD_DEVIATION 8.7
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants5 Participants1 Participants8 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
15 Participants14 Participants6 Participants35 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants7 Participants3 Participants11 Participants
Percutaneous Coronary Intervention (PCI)12 Participants11 Participants6 Participants29 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants1 Participants0 Participants2 Participants
Race (NIH/OMB)
Asian
1 Participants4 Participants3 Participants8 Participants
Race (NIH/OMB)
Black or African American
3 Participants0 Participants1 Participants4 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants4 Participants1 Participants6 Participants
Race (NIH/OMB)
White
12 Participants17 Participants4 Participants33 Participants
Region of Enrollment
United States
18 Participants26 Participants10 Participants54 Participants
Sex: Female, Male
Female
3 Participants5 Participants2 Participants10 Participants
Sex: Female, Male
Male
15 Participants21 Participants8 Participants44 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
2 / 181 / 260 / 10
other
Total, other adverse events
8 / 188 / 263 / 10
serious
Total, serious adverse events
5 / 189 / 265 / 10

Outcome results

Primary

Rate of Participants With Composite of Cardiovascular Death, Myocardial Infarction, Stroke, Any Unplanned Repeat Revascularization (PCI/CABG), Bleeding (BARC 3/5) up to 14 Days Post-device Removal, Severe Hypotension, and Change in Aortic Insufficiency

The primary endpoint, including the following components representing important safety and effectiveness endpoints will be evaluated using the difference in event rates in the ITT population. * Cardiovascular Death * Myocardial infarction (MI) * Stroke * Any unplanned repeat revascularization (PCI or CABG) * Bleeding (BARC 3 or 5) up to 14 days post-device removal * Severe hypotension, defined as: systolic blood pressure (SBP) or augmented diastolic pressure (whichever is greater) \<90 mmHg while on device support requiring (1) more than one administration of OR (2) continuous infusion of inotropic/pressor medications to restore hemodynamics * Change in aortic insufficiency from baseline to 90 days by echocardiographic assessment.

Time frame: 90 Days

Population: The number of participants analyzed includes subjects who were available at that time of analysis

ArmMeasureValue (NUMBER)
HeartMate PHP (Roll-in)Rate of Participants With Composite of Cardiovascular Death, Myocardial Infarction, Stroke, Any Unplanned Repeat Revascularization (PCI/CABG), Bleeding (BARC 3/5) up to 14 Days Post-device Removal, Severe Hypotension, and Change in Aortic Insufficiency29.4 percentage of participants
HeartMate PHP (Randomised)Rate of Participants With Composite of Cardiovascular Death, Myocardial Infarction, Stroke, Any Unplanned Repeat Revascularization (PCI/CABG), Bleeding (BARC 3/5) up to 14 Days Post-device Removal, Severe Hypotension, and Change in Aortic Insufficiency19.0 percentage of participants
Any Abiomed Impella® (Randomised)Rate of Participants With Composite of Cardiovascular Death, Myocardial Infarction, Stroke, Any Unplanned Repeat Revascularization (PCI/CABG), Bleeding (BARC 3/5) up to 14 Days Post-device Removal, Severe Hypotension, and Change in Aortic Insufficiency50.0 percentage of participants

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