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Medtronic CoreValve Evolut R U.S. Clinical Study

Medtronic CoreValve Evolut R United States IDE Clinical Study

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02207569
Enrollment
241
Registered
2014-08-04
Start date
2014-08-31
Completion date
2020-10-28
Last updated
2022-11-02

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

Conditions

Aortic Stenosis

Brief summary

The study objectives are to assess the safety and efficacy of the CoreValve Evolut R transcatheter aortic valve replacement (TAVR) system in patients with severe symptomatic aortic stenosis are considered at high or extreme risk for surgical aortic valve replacement.

Detailed description

This objective will be accomplished by a prospective, single arm, historical controlled, multi-site study involving a minimum of 150 implanted subjects with no more than 250 implanted subjects at up to 25 study sites in the United States. Procedural and 30 day safety and efficacy results from this study will be compared to appropriate historical control data for the Medtronic CoreValve System. Subjects will be followed up to 5 years following implantation. The enrollment phase of the study is estimated to take approximately 6-9 months. As each implanted subject is to be followed up to 5 years, the estimated study duration is approximately 66-69 months, excluding the time required for preparing the final report.

Interventions

DEVICECoreValve Evolut R TAVR system

Sponsors

Medtronic Cardiovascular
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

- Severe aortic stenosis, defined as aortic valve area of \< 1.0 cm2 (or aortic valve area index of \< 0.6 cm2/m2) by the continuity equation, AND mean gradient \> 40 mmHg or maximal aortic valve velocity \> 4.0 m/sec by resting echocardiogram. Subjects with low-flow/low gradient severe aortic stenosis can be included, provided low-dose dobutamine or exercise stress echocardiography demonstrates a mean gradient of \>40 mmHg or a maximal aortic valve velocity of \>4.0 m/sec, AND aortic valve area of \<1.0cm2 (or aortic valve area index of \<0.6 cm2/m2). * STS score of ≥ 8 OR documented heart team agreement of ≥ high risk for AVR due to frailty or co-morbidities. * Symptoms of aortic stenosis, AND NYHA Functional Class II or greater * The subject and the treating physician agree that the subject will return for all required post-procedure follow-up visits.

Exclusion criteria

* Any condition considered a contraindication for placement of a bioprosthetic valve (e.g. subject is indicated for mechanical prosthetic valve). * A known hypersensitivity or contraindication to any of the following which cannot be adequately pre-medicated: aspirin or heparin (HIT/HITTS) and bivalirudin, ticlopidine and clopidogrel, Nitinol (titanium or nickel), contrast media * Blood dyscrasias as defined: leukopenia (WBC \< 1000 mm3), thrombocytopenia (platelet count \<50,000 cells/mm3), history of bleeding diathesis or coagulopathy, or hypercoagulable states. * Untreated clinically significant coronary artery disease requiring revascularization. * Severe left ventricular dysfunction with left ventricular ejection fraction (LVEF) \< 20% by echocardiography, contrast ventriculography, or radionuclide ventriculography. * End stage renal disease requiring chronic dialysis or creatinine clearance \< 20 cc/min. * Ongoing sepsis, including active endocarditis. * Any percutaneous coronary or peripheral interventional procedure with a bare metal or drug eluting stent performed within 30 days prior to the study procedure. * Symptomatic carotid or vertebral artery disease or successful treatment of carotid stenosis within 10 weeks of Heart Team assessment. * Cardiogenic shock manifested by low cardiac output, vasopressor dependence, or mechanical hemodynamic support. * Recent (within 6 months of Heart Team assessment) cerebrovascular accident (CVA) or transient ischemic attack (TIA). * Gastrointestinal (GI) bleeding that would preclude anticoagulation. * Subject refuses a blood transfusion. * Severe dementia (resulting in either inability to provide informed consent for the study/procedure, prevents independent lifestyle outside of a chronic care facility, or will fundamentally complicate rehabilitation from the procedure or compliance with follow-up visits). * Estimated life expectancy of less than 12 months due to associated non-cardiac co-morbid conditions. * Other medical, social, or psychological conditions that in the opinion of the investigator precludes the subject from appropriate consent or adherence to the protocol required follow-ups exams. * Currently participating in an investigational drug or another device study (excluding registries). * Evidence of an acute myocardial infarction ≤ 30 days before the study procedure. * Need for emergency surgery for any reason. * Liver failure (Child-Pugh class C). * Subject is pregnant or breast feeding. Anatomical

Design outcomes

Primary

MeasureTime frameDescription
All-cause Mortality at 30 Days by PercentAssessed at 30 days post-implantationPercentage of patients that died by any cause at 30 days
Percentage of Patients With Disabling Stroke at 30 DaysAssessed at 30 days post-implantationStroke Diagnostic Criteria: \> Acute episode of focal or global neurological deficit with at least 2 of the following: * change in level of consciousness \> * hemiplegia, hemiparesis * numbness or sensory loss affecting 1 side \> * dysphasia or aphasia * hemianopia * amaurosis fugax \> * other neurological signs or symptoms consistent with stroke 2.) No other readily identifiable non-stroke cause or the clinical presentation, to be determined by or in conjunctions with the designated neurologist 3.) Confirmation of the diagnosis by at least 1 of the following: * Neurological specialist \> * Neuroimaging procedure, or on clincial grounds alone \> Stroke: durations of neural deficit \> 24 h if available neuroimaging documents a new hemofrrhage or infarct; or the neurological deficit results in death Defined by VARC II: \> An mRS (Modified Rankin Score) of 2 or more at 90 days and an increase in at least 1 mRS category from pre-stroke baseline
Percent Device Success Rate Between 24 and 7 DayAssessed at 24 hours to seven days post implantationPercentage of patients with Device Success defined as: * Absence of procedural mortality, AND * Correct positioning of a single Evolut R valve into the proper anatomical location, AND * Absence of patient-prosthesis mismatch, and mean gradient , 20 mm Hg (or peak velocity \< 3m/sec, AND * Absence of moderate or severe prosthetic valve regurgitation
Percentage of Patients With Less Than Moderate Prosthetic Regurgitation at Early Post Procedure Echocardiogram (24 Hours to 7 Days)Assessed at 24 hours to 7 days post implantationPercentage of patience with none, trace or mild total prosthetic regurgitation at early post procedure echo cardiogram (24 hours to 7 days) as evaluated by echo core lab.

Secondary

MeasureTime frameDescription
Coronary Artery Obstruction Requiring Intervention.Assessed at 30 days post-implantationAngiographic or echocardiographic evidence of a new, partial or complete, obstruction of a coronary ostium, either by the Evolut R prosthesis itself, the native leaflets, calcifications, or dissection, occurring during or after the TAVI procedure.
Percent VARC II Combined Safety Endpoint at 30 DaysAssessed at 30 days post-implantationVARC II composite safety endpoint rate includes percent freedom from the following components: * All-cause mortality * All stroke (disabling and non-disabling) * Life-threatening bleeding * Acute kidney injury: stage 2 or 3 (including renal replacement therapy). * Coronary artery obstruction requiring intervention. * Major vascular complication. * Valve-related dysfunction requiring repeat procedure (BAV, TAVI, or SAVR)
Percent of Patients With Acute Kidney Injury: Stage 2 or 3 (Including Renal Replacement Therapy).Assessed at 30 days post-implantationStage 2 1. Increase in serum creatinine to 200%-299% (2.0%-2.99% increase compared with baseline) OR \> 2. Urine output \<0.5 mL/kg/h for \>12 but \<24 h \> Stage 3 \> 1\) Increase in serum creatinine to ≥300% (\>3 x increase compared with baseline) OR serum creatinine of ≥4.0 mg/dL (≥354 mmol/L) with an acute increase of at least 0.5 mg/dL (44 mmol/L) OR * Urine output \<0.3 ml/kg/h for ≥24 h OR \> * Anuria for ≥12 h
Major Vascular ComplicationAssessed at 30 days post-implantation1. Any aortic dissection, aortic rupture, annulus rupture, left ventricle perforation, or new apical aneurysm/pseudoaneurysm OR \> 2. Access-related vascular injury (dissection, stenosis, perforation, rupture, arterio-venous fistula, pseudoaneurysm, hematoma, irreversible nerve injury, compartment syndrome, percutaneous closure device failure) leading to death, life-threatening or major bleeding, visceral ischemia, or neurological impairment OR \> 3. Distal embolization (noncerebral) from a vascular source requiring surgery or resulting in amputation or irreversible end-organ damage OR \> 4. The use of unplanned endovascular or surgery associated with death, major bleeding, visceral ischemia or neurological impairment OR \> 5. Any new ipsilateral lower extremity ischemia documented by patient symptoms, physical exam, and/or decreased or absent blood flow on lower extremity angiogram OR \> 6. Surgery for access site nerve injury OR \> 7. Permanent access related nerve injury
Percent Rate of Patients Who Received New Permanent Pacemaker Implant at 30 DaysAssessed at 30 daysPercent of patients who underwent implantation of new permanent pacemaker or ICD during or after index procedure
Percent Resheath and Recapture Success RateAssessed intra-procedurallyResheath or recapture success rate (where attempted) where a successful resheath is defined as the intended portion of the Evolut R is resheathed into the capsule of the delivery catheter to the intended amount, as verified by flouroscopy; and a successful recapture is defined as the entire Evolut R TAV (including the frame) is full resheathed into the capsule of the delivery catheter until there is no gap between the capsule and the tip , as verified by flouroscopy. Resheath or recapture wa attempted in a subset of patients. Success rate is calculated as successful resheath or recaputure events in the number of total events. Resheath anad recapture is only possible during the index procedure.
Hemodynamic Performance -Mean GradientAssessed at baseline, 30 days, 6 months, and 1 yearMean gradient by Doppler echocardiography.
Percentage of Patients With Life-threatening or Disabling Bleeding Event RateAssessed at 30 days post-implantation1. Fatal bleeding (BARC type 5) OR \> 2. Bleeding in a critical organs, such as intracranial, intraspinal, \> intraocular, or pericardial necessitating pericardiocentesis, or intramuscular with compartment syndrome (BARC type 3b and 3c) OR \> 3. Bleeding causing hypovolemic shock or severe hypotension requiring vasopressors or surgery (BARC type 3b) OR \> 4. Overt source of bleeding with drop in hemoglobin ≥5 g/dL or whole blood or packed red blood cells (RBCs) transfusion ≥4 units\* \> (BARC type 3b)
Hemodynamic Performance - Aortic Valve AreaAssessed at baseline, 30 days, 6 months, and 1 yearHemodynamic performance by Doppler echocardiography - Aortic Valve Area cm2
Hemodynamic Performance: Total Prosthetic Valve Regurgitation Graded as Moderate or SevereAssessed at 30 days, 6 months, and 1 yearHemodynamic performance: the percent of patients who have a degree of total prosthetic valve regurgitation that is moderate or severe.
Individual Component of VARC II Safety Endpoint: Percentage of People Requiring Valve-related Dysfunction Requiring Repeat Procedure (BAV, TAVI, or SAVR)Assessed at 30 days post-implantationPercentage of patients with any valve dysfunction that requires repeat procedure (e.g. balloon valvuloplasty, TAVI, or surgical AVR), per VARC II definition.

Countries

United States

Participant flow

Participants by arm

ArmCount
CoreValve Evolut R TAVR System
The CoreValve Evolut R System is a transcatheter aortic valve implantation system comprised of the following three components:\> 1. Evolut R Transcatheter Aortic Valve (TAV)\> 2. EnVeo R Delivery Catheter System (DCS) with EnVeo R InLine Sheath\> 3. EnVeo R Loading System (LS)\> \> CoreValve Evolut R TAVR system
241
Total241

Withdrawals & dropouts

PeriodReasonFG000
12-MonthDeath14
12-MonthWithdrawal by Subject2
1-MonthDeath6
1-MonthSubject anesthetized but product not onsite, for medical justification treated w/commercial device1
1-MonthWithdrawal by Subject2
24-MonthDeath23
24-MonthWithdrawal by Subject3
36-MonthDeath23
36-MonthWithdrawal by Subject4
48-MonthDeath25
48-MonthLost to Follow-up4
48-MonthWithdrawal by Subject2
60-MonthCovid-19 pt not willing to be seen1
60-MonthDeath1
60-MonthLost to Follow-up1
60-Monthpt 103 years old no longer traveling for MD visits1
6-MonthDeath8
6-MonthWithdrawal by Subject2

Baseline characteristics

CharacteristicCoreValve Evolut R TAVR System
Age, Continuous83.3 years
STANDARD_DEVIATION 7.2
Region of Enrollment
United States
241 participants
Sex: Female, Male
Female
165 Participants
Sex: Female, Male
Male
76 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
107 / 241
other
Total, other adverse events
197 / 241
serious
Total, serious adverse events
170 / 241

Outcome results

Primary

All-cause Mortality at 30 Days by Percent

Percentage of patients that died by any cause at 30 days

Time frame: Assessed at 30 days post-implantation

Population: All subjects who are brought into the procedure room and any of the following have occurred: anesthesia administered, vascular line placed, TEE placed, or any monitoring line placed.

ArmMeasureValue (NUMBER)
CoreValve Evolut R TAVR SystemAll-cause Mortality at 30 Days by Percent2.5 percentage of partcipants
Primary

Percentage of Patients With Disabling Stroke at 30 Days

Stroke Diagnostic Criteria: \> Acute episode of focal or global neurological deficit with at least 2 of the following: * change in level of consciousness \> * hemiplegia, hemiparesis * numbness or sensory loss affecting 1 side \> * dysphasia or aphasia * hemianopia * amaurosis fugax \> * other neurological signs or symptoms consistent with stroke 2.) No other readily identifiable non-stroke cause or the clinical presentation, to be determined by or in conjunctions with the designated neurologist 3.) Confirmation of the diagnosis by at least 1 of the following: * Neurological specialist \> * Neuroimaging procedure, or on clincial grounds alone \> Stroke: durations of neural deficit \> 24 h if available neuroimaging documents a new hemofrrhage or infarct; or the neurological deficit results in death Defined by VARC II: \> An mRS (Modified Rankin Score) of 2 or more at 90 days and an increase in at least 1 mRS category from pre-stroke baseline

Time frame: Assessed at 30 days post-implantation

Population: All subjects who are brought into the procedure room and any of the following have occurred: anesthesia administered, vascular line placed, TEE placed, or any monitoring line placed.

ArmMeasureValue (NUMBER)
CoreValve Evolut R TAVR SystemPercentage of Patients With Disabling Stroke at 30 Days3.3 percentage of participants
Primary

Percentage of Patients With Less Than Moderate Prosthetic Regurgitation at Early Post Procedure Echocardiogram (24 Hours to 7 Days)

Percentage of patience with none, trace or mild total prosthetic regurgitation at early post procedure echo cardiogram (24 hours to 7 days) as evaluated by echo core lab.

Time frame: Assessed at 24 hours to 7 days post implantation

Population: Subset includes all subjects who are implanted with the Evolut R TAV, defined as the Evolut R TAV is placed in the aortic annulus and completely released from the Enveo catheter delivery system

ArmMeasureValue (NUMBER)
CoreValve Evolut R TAVR SystemPercentage of Patients With Less Than Moderate Prosthetic Regurgitation at Early Post Procedure Echocardiogram (24 Hours to 7 Days)96.5 percentage of partcipants
Primary

Percent Device Success Rate Between 24 and 7 Day

Percentage of patients with Device Success defined as: * Absence of procedural mortality, AND * Correct positioning of a single Evolut R valve into the proper anatomical location, AND * Absence of patient-prosthesis mismatch, and mean gradient , 20 mm Hg (or peak velocity \< 3m/sec, AND * Absence of moderate or severe prosthetic valve regurgitation

Time frame: Assessed at 24 hours to seven days post implantation

Population: All subjects implanted with the Evolut R TAV, defined as the Evolut R TAV is placed in the aortic annulus and completely released from the Enveo catheter delivery system

ArmMeasureValue (NUMBER)
CoreValve Evolut R TAVR SystemPercent Device Success Rate Between 24 and 7 Day69.2 percentage of overall device success
Secondary

Coronary Artery Obstruction Requiring Intervention.

Angiographic or echocardiographic evidence of a new, partial or complete, obstruction of a coronary ostium, either by the Evolut R prosthesis itself, the native leaflets, calcifications, or dissection, occurring during or after the TAVI procedure.

Time frame: Assessed at 30 days post-implantation

Population: All subjects who are brought into the procedure room and any of the following have occurred: anesthesia administered, vascular line placed, TEE placed, or any monitoring line placed.

ArmMeasureValue (NUMBER)
CoreValve Evolut R TAVR SystemCoronary Artery Obstruction Requiring Intervention.0.4 percentage of participants
Secondary

Hemodynamic Performance - Aortic Valve Area

Hemodynamic performance by Doppler echocardiography - Aortic Valve Area cm2

Time frame: Assessed at baseline, 30 days, 6 months, and 1 year

Population: The hemodynamic performance subset includes all subjects implanted with the Evolut R TAV for more than 24 hours post implantation - only subjects with echo can be analyzed.

ArmMeasureGroupValue (MEAN)Dispersion
CoreValve Evolut R TAVR SystemHemodynamic Performance - Aortic Valve Areabaseline0.6 cm²Standard Deviation 0.2
CoreValve Evolut R TAVR SystemHemodynamic Performance - Aortic Valve Area30 days1.9 cm²Standard Deviation 0.5
CoreValve Evolut R TAVR SystemHemodynamic Performance - Aortic Valve Area6 months1.8 cm²Standard Deviation 0.5
CoreValve Evolut R TAVR SystemHemodynamic Performance - Aortic Valve Area1 year1.8 cm²Standard Deviation 0.5
Secondary

Hemodynamic Performance -Mean Gradient

Mean gradient by Doppler echocardiography.

Time frame: Assessed at baseline, 30 days, 6 months, and 1 year

Population: The Implanted population consisted of all As Treated Subjects who underwent an index procedure and were implanted with the Evolut R system. Only subjects with echo can be analyzed.

ArmMeasureGroupValue (MEAN)Dispersion
CoreValve Evolut R TAVR SystemHemodynamic Performance -Mean Gradientbaseline48.2 mmHgStandard Deviation 13
CoreValve Evolut R TAVR SystemHemodynamic Performance -Mean Gradient30 days7.8 mmHgStandard Deviation 3.1
CoreValve Evolut R TAVR SystemHemodynamic Performance -Mean Gradient6 months8.4 mmHgStandard Deviation 3.8
CoreValve Evolut R TAVR SystemHemodynamic Performance -Mean Gradient1 year9.1 mmHgStandard Deviation 4.7
Secondary

Hemodynamic Performance: Total Prosthetic Valve Regurgitation Graded as Moderate or Severe

Hemodynamic performance: the percent of patients who have a degree of total prosthetic valve regurgitation that is moderate or severe.

Time frame: Assessed at 30 days, 6 months, and 1 year

Population: The hemodynamic performance subset includes all subjects implanted with the Evolut R TAV for more than 24 hours post implantation. Only subjects with echo can be analyzed.

ArmMeasureGroupValue (NUMBER)
CoreValve Evolut R TAVR SystemHemodynamic Performance: Total Prosthetic Valve Regurgitation Graded as Moderate or Severe30 days5.7 percentage of participants
CoreValve Evolut R TAVR SystemHemodynamic Performance: Total Prosthetic Valve Regurgitation Graded as Moderate or Severe6 months5.4 percentage of participants
CoreValve Evolut R TAVR SystemHemodynamic Performance: Total Prosthetic Valve Regurgitation Graded as Moderate or Severe1 year3.7 percentage of participants
Secondary

Individual Component of VARC II Safety Endpoint: Percentage of People Requiring Valve-related Dysfunction Requiring Repeat Procedure (BAV, TAVI, or SAVR)

Percentage of patients with any valve dysfunction that requires repeat procedure (e.g. balloon valvuloplasty, TAVI, or surgical AVR), per VARC II definition.

Time frame: Assessed at 30 days post-implantation

Population: The safety subset includes all subjects who are brought into the procedure room and any of the following have occurred: anesthesia administered, vascular line placed, or any monitoring line placed.

ArmMeasureValue (NUMBER)
CoreValve Evolut R TAVR SystemIndividual Component of VARC II Safety Endpoint: Percentage of People Requiring Valve-related Dysfunction Requiring Repeat Procedure (BAV, TAVI, or SAVR)0.0 percentage of overall patients
Secondary

Major Vascular Complication

1. Any aortic dissection, aortic rupture, annulus rupture, left ventricle perforation, or new apical aneurysm/pseudoaneurysm OR \> 2. Access-related vascular injury (dissection, stenosis, perforation, rupture, arterio-venous fistula, pseudoaneurysm, hematoma, irreversible nerve injury, compartment syndrome, percutaneous closure device failure) leading to death, life-threatening or major bleeding, visceral ischemia, or neurological impairment OR \> 3. Distal embolization (noncerebral) from a vascular source requiring surgery or resulting in amputation or irreversible end-organ damage OR \> 4. The use of unplanned endovascular or surgery associated with death, major bleeding, visceral ischemia or neurological impairment OR \> 5. Any new ipsilateral lower extremity ischemia documented by patient symptoms, physical exam, and/or decreased or absent blood flow on lower extremity angiogram OR \> 6. Surgery for access site nerve injury OR \> 7. Permanent access related nerve injury

Time frame: Assessed at 30 days post-implantation

Population: The Implanted population consisted of all As Treated Subjects who underwent an index procedure and were implanted with the Evolut R system.

ArmMeasureValue (NUMBER)
CoreValve Evolut R TAVR SystemMajor Vascular Complication7.5 percentage of participants
Secondary

Percentage of Patients With Life-threatening or Disabling Bleeding Event Rate

1. Fatal bleeding (BARC type 5) OR \> 2. Bleeding in a critical organs, such as intracranial, intraspinal, \> intraocular, or pericardial necessitating pericardiocentesis, or intramuscular with compartment syndrome (BARC type 3b and 3c) OR \> 3. Bleeding causing hypovolemic shock or severe hypotension requiring vasopressors or surgery (BARC type 3b) OR \> 4. Overt source of bleeding with drop in hemoglobin ≥5 g/dL or whole blood or packed red blood cells (RBCs) transfusion ≥4 units\* \> (BARC type 3b)

Time frame: Assessed at 30 days post-implantation

Population: All subjects who are brought into the procedure room and any of the following have occurred: anesthesia administered, vascular line placed, TEE placed, or any monitoring line placed.

ArmMeasureValue (NUMBER)
CoreValve Evolut R TAVR SystemPercentage of Patients With Life-threatening or Disabling Bleeding Event Rate7.1 percentage of participants
Secondary

Percent of Patients With Acute Kidney Injury: Stage 2 or 3 (Including Renal Replacement Therapy).

Stage 2 1. Increase in serum creatinine to 200%-299% (2.0%-2.99% increase compared with baseline) OR \> 2. Urine output \<0.5 mL/kg/h for \>12 but \<24 h \> Stage 3 \> 1\) Increase in serum creatinine to ≥300% (\>3 x increase compared with baseline) OR serum creatinine of ≥4.0 mg/dL (≥354 mmol/L) with an acute increase of at least 0.5 mg/dL (44 mmol/L) OR * Urine output \<0.3 ml/kg/h for ≥24 h OR \> * Anuria for ≥12 h

Time frame: Assessed at 30 days post-implantation

Population: All subjects who are brought into the procedure room and any of the following have occurred: anesthesia administered, vascular line placed, TEE placed, or any monitoring line placed.

ArmMeasureValue (NUMBER)
CoreValve Evolut R TAVR SystemPercent of Patients With Acute Kidney Injury: Stage 2 or 3 (Including Renal Replacement Therapy).1.3 percentage of participants
Secondary

Percent Rate of Patients Who Received New Permanent Pacemaker Implant at 30 Days

Percent of patients who underwent implantation of new permanent pacemaker or ICD during or after index procedure

Time frame: Assessed at 30 days

Population: All subjects who are brought into the procedure room and any of the following have occurred: anesthesia administered, vascular line placed, TEE placed, or any monitoring line placed. Additionally, these patients did NOT have ICD or PPM at the time of the index procedure.

ArmMeasureValue (NUMBER)
CoreValve Evolut R TAVR SystemPercent Rate of Patients Who Received New Permanent Pacemaker Implant at 30 Days19.7 percentage of participants
Secondary

Percent Resheath and Recapture Success Rate

Resheath or recapture success rate (where attempted) where a successful resheath is defined as the intended portion of the Evolut R is resheathed into the capsule of the delivery catheter to the intended amount, as verified by flouroscopy; and a successful recapture is defined as the entire Evolut R TAV (including the frame) is full resheathed into the capsule of the delivery catheter until there is no gap between the capsule and the tip , as verified by flouroscopy. Resheath or recapture wa attempted in a subset of patients. Success rate is calculated as successful resheath or recaputure events in the number of total events. Resheath anad recapture is only possible during the index procedure.

Time frame: Assessed intra-procedurally

Population: 65 patients had resheath or recapture feature used during the 241 attempted procedures.

ArmMeasureValue (NUMBER)
CoreValve Evolut R TAVR SystemPercent Resheath and Recapture Success Rate96.9 percentage of resheath or recapture
Secondary

Percent VARC II Combined Safety Endpoint at 30 Days

VARC II composite safety endpoint rate includes percent freedom from the following components: * All-cause mortality * All stroke (disabling and non-disabling) * Life-threatening bleeding * Acute kidney injury: stage 2 or 3 (including renal replacement therapy). * Coronary artery obstruction requiring intervention. * Major vascular complication. * Valve-related dysfunction requiring repeat procedure (BAV, TAVI, or SAVR)

Time frame: Assessed at 30 days post-implantation

Population: All subjects who are brought into the procedure room and any of the following have occurred: anesthesia administered, vascular line placed, TEE placed, or any monitoring line placed.

ArmMeasureValue (NUMBER)
CoreValve Evolut R TAVR SystemPercent VARC II Combined Safety Endpoint at 30 Days14.5 percentage of participants

Source: ClinicalTrials.gov · Data processed: Mar 11, 2026