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CONFIDENCE Registry to Assess Safety and Performance of Portico System to Treat Patients With Severe Aortic Stenosis.

CONtrolled Delivery For ImproveD outcomEs With cliNiCal Evidence

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03752866
Enrollment
1001
Registered
2018-11-26
Start date
2018-10-25
Completion date
2022-07-28
Last updated
2024-10-21

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

Conditions

Severe Aortic Stenosis, Symptomatic Degenerative Aortic Stenosis

Keywords

Portico™ valve, Portico™ valve delivery system, Portico™ valve loading system, Transcatheter Aortic Valve Replacement, Aortic Stenosis, Heart Valve Prosthesis, TAVR, TAVR Registry, Transcatheter Aortic Valve Implant, TAVI, TAVI Registry, FlexNav delivery system, FlexNav loading system

Brief summary

The purpose of this clinical investigation is to characterize the procedural safety and device performance of transfemoral implantation of the Portico™ Transcatheter Aortic Heart Valve in patients with symptomatic degenerative aortic stenosis.

Detailed description

The CONFIDENCE registry study will be conducting as a prospective, non-randomized, observational, single-arm, multi-center study. Approximately 1000 subjects with severe symptomatic (NYHA class ≥ II) aortic stenosis (AS), will undergo Portico™ Transcatheter Aortic Heart Valve implantation. The subject data will be collected at baseline, index procedure, pre- discharge, 30 days and 12 months from the index procedure.

Interventions

DEVICEPortico™ Valve, Portico Delivery System(s) and Loading System(s)

Subjects will undergo implantation of a commercially available Portico transcatheter aortic heart valve using the Portico TAVI system.

DEVICEPortico™ Valve, FlexNav Delivery System(s) and Loading System(s)

Subjects will undergo implantation of a commercially available Portico transcatheter aortic heart valve using the FlexNav Delivery and Loading Systems.

Sponsors

Abbott Medical Devices
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

This registry will include market released Portico™ valves (23mm, 25mm, 27mm and 29mm), delivery systems and loading systems. The registry will also allow future iterations of the Portico valve and delivery system along with expanded indications to be included as they receive approval for commercial use in the country where the subject is enrolled.

Eligibility

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

Inclusion criteria

1. Subjects who are ≥18 years of age or legal age in host country and have been identified as a candidate for a Portico™ valve implant 2. Subjects who have been informed of the nature of the study, agree to its provisions and have provided written informed consent as approved by the Ethics Committee (EC) of the respective clinical center

Exclusion criteria

1. Have sepsis, including active endocarditis 2. Have any evidence of left ventricular or atrial thrombus 3. Have vascular conditions (i.e. caliber, stenosis, tortuosity, or severe calcification) that make insertion and endovascular access to the aortic valve improbable 4. Have a non-calcified aortic annulus 5. Have congenital bicuspid or unicuspid leaflet configuration 6. Are unable to tolerate antiplatelet/anticoagulant therapy 7. Are pregnant at the time of signing informed consent 8. Are currently participating in a drug or device study that may impact the registry (unless prior sponsor approval for co-enrollment is granted)

Design outcomes

Primary

MeasureTime frameDescription
Cardiovascular Mortality30 days from the index procedureDeath due to proximate cardiac cause, non-coronary vascular conditions, procedure-related deaths, valve-related deaths, sudden or unwitnessed death and unknown cause.

Secondary

MeasureTime frameDescription
Number of Subjects With StrokeAt 30 days
Number of Subjects With Bleeding EventsAt 30 days
Number of Subjects With Acute Kidney InjuryAt 30 daysThe increase in creatinine must occur within 48 hours. Stage 1: Increase in serum creatinine to 150% to 199% (1.5 to 1.99 X increase compared with baseline) or increase of greater than or equal to 0.3 mg/dL (26.4 mmol/L) or Urine output \<0.5 mL/kg per hour for \>6 but \<12 hours. Stage 2: Increase in serum creatinine to 200% to 299% (2.0 to 2.99 X increase compared with baseline) or Urine output \<0.5 mL/kg per hour for \>12 but \<24 hours. Stage 3: Increase in serum creatinine to greater than or equal 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 per hour for ≥24 hours or anuria for ≥12 hours. Patients receiving renal replacement therapy are considered to meet Stage 3 criteria irrespective of other criteria.
Number of Subjects With Vascular ComplicationsAt 30 days
Number of Subjects With Annular RuptureAt 30 days
Number of Subjects With Coronary ObstructionAt 30 days
Number of Subjects Undergoing Conversion To Open SurgeryAt 30 days
Number Of Subjects Undergoing Transcatheter Valve-In-Valve DeploymentAt 30 days
Number Of Subjects With Valve EmbolizationAt 30 days
Number of Subjects With Myocardial InfarctionAt 30 days
Vessel DiameterAt 30 days
Introducer Sheath UsedAt 30 daysThis is a yes or no question on the CRF. Sites report if the implanter used an introducer sheath (a special device used to facilitate introduction of the investigational device into the subjects vasculature).
Implant SuccessAt 30 days
Effective Orifice AreaAt 30 daysEffective orifice area is a measure of the working area of the implanted valve determined by echocardiograph.
Aortic Valve Mean GradientAt 30 daysAortic valve mean gradient is a measure of the pressure gradient across the aortic valve measured by echocardiograph.
Number of Subjects With Paravalvular Leak (PVL)At 30 days
NYHA ClassificationAt 30 daysNYHA Functional Classification is a system used to assess patient heart failure severity based on their limitations of physical activity. The four classes are described below: 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. Subjects' NYHA Classification based on above criteria was assessed during follow up, and subjects were assigned to one of four classifications. Results are presented as percentage of all available subjects who were assigned each functional class (I-IV).
EQ5D-3L Visual Analog Scale ValueAt 30 daysThe EQ-5D-3L consists of EuroQoL 5 questions and 3 answering levels. The rating of questions includes: Level 1 no problems; Level 2 some problems; Level 3 Significant problems; Worst case is 15 points; and best case is 5 points using index. The Visual analogue scale VAS 0-100 where 0 is the worst imaginable health state and 100 the best imaginable health state.
Kaplan-Meier Rate of All-cause MortalityAt 12 monthsKaplan-Meier (KM) percentage of subjects who died. KM is a statistical method that attempts to account for other factors that may have reduced the number of subjects evaluable at a given time point.
Number Of Subjects Undergoing Naïve Permanent Pacemaker InsertionAt 30 days

Countries

Australia, Belgium, Czechia, Germany, Italy, Poland, Spain, Switzerland, United Kingdom

Participant flow

Recruitment details

Between October 2018 and July 2021, implantation with a Portico™ transcatheter heart valve (THV) was attempted in 1001 subjects. This clinical investigation includes 27 sites in 8 countries across Europe and 1 site in Australia.

Participants by arm

ArmCount
Portico™ Valve, Delivery System(s) and Loading System(s)
Implantation of the Portico ™ Valve using the Portico Delivery and Loading Systems. Subjects will undergo implantation of a commercially available Portico transcatheter aortic heart valve using the Portico TAVI system.
501
Portico™ Valve, FlexNav Delivery and Loading System(s)
Implantation of the Portico ™ Valve using the FlexNav Delivery and Loading Systems. Subjects will undergo implantation of a commercially available Portico transcatheter aortic heart valve using the FlexNav Delivery and Loading Systems.
500
Total1,001

Baseline characteristics

CharacteristicPortico™ Valve, FlexNav Delivery and Loading System(s)Portico™ Valve, Delivery System(s) and Loading System(s)Total
Age, Continuous82.3 years
STANDARD_DEVIATION 5.3
81.7 years
STANDARD_DEVIATION 5.4
82.0 years
STANDARD_DEVIATION 5.3
Baseline EQ5D-3L Visual Analog Scale Value60.1 units on a scale
STANDARD_DEVIATION 17.8
60.8 units on a scale
STANDARD_DEVIATION 18.5
60.4 units on a scale
STANDARD_DEVIATION 18.1
Hypertension431 Participants440 Participants871 Participants
NYHA Classification
NYHA I
4 Participants14 Participants18 Participants
NYHA Classification
NYHA II
185 Participants160 Participants345 Participants
NYHA Classification
NYHA III
293 Participants295 Participants588 Participants
NYHA Classification
NYHA IV
18 Participants32 Participants50 Participants
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
Australia
8 Participants20 Participants28 Participants
Region of Enrollment
Belgium
0 Participants4 Participants4 Participants
Region of Enrollment
Czechia
42 Participants25 Participants67 Participants
Region of Enrollment
Germany
195 Participants272 Participants467 Participants
Region of Enrollment
Italy
68 Participants43 Participants111 Participants
Region of Enrollment
Poland
24 Participants10 Participants34 Participants
Region of Enrollment
Spain
138 Participants71 Participants209 Participants
Region of Enrollment
Switzerland
0 Participants12 Participants12 Participants
Region of Enrollment
United Kingdom
25 Participants44 Participants69 Participants
Sex: Female, Male
Female
307 Participants319 Participants626 Participants
Sex: Female, Male
Male
193 Participants182 Participants375 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
16 / 50110 / 500
other
Total, other adverse events
72 / 50180 / 500
serious
Total, serious adverse events
348 / 501358 / 500

Outcome results

Primary

Cardiovascular Mortality

Death due to proximate cardiac cause, non-coronary vascular conditions, procedure-related deaths, valve-related deaths, sudden or unwitnessed death and unknown cause.

Time frame: 30 days from the index procedure

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)Cardiovascular Mortality15 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Cardiovascular Mortality6 Participants
Secondary

Aortic Valve Mean Gradient

Aortic valve mean gradient is a measure of the pressure gradient across the aortic valve measured by echocardiograph.

Time frame: At 30 days

ArmMeasureValue (MEAN)Dispersion
Portico™ Valve, Delivery System(s) and Loading System(s)Aortic Valve Mean Gradient7.38 mmHgStandard Deviation 4.44
Portico™ Valve, FlexNav Delivery and Loading System(s)Aortic Valve Mean Gradient6.80 mmHgStandard Deviation 2.79
Secondary

Effective Orifice Area

Effective orifice area is a measure of the working area of the implanted valve determined by echocardiograph.

Time frame: At 30 days

ArmMeasureValue (MEAN)Dispersion
Portico™ Valve, Delivery System(s) and Loading System(s)Effective Orifice Area1.85 cm^2Standard Deviation 0.48
Portico™ Valve, FlexNav Delivery and Loading System(s)Effective Orifice Area1.80 cm^2Standard Deviation 0.49
Secondary

EQ5D-3L Visual Analog Scale Value

The EQ-5D-3L consists of EuroQoL 5 questions and 3 answering levels. The rating of questions includes: Level 1 no problems; Level 2 some problems; Level 3 Significant problems; Worst case is 15 points; and best case is 5 points using index. The Visual analogue scale VAS 0-100 where 0 is the worst imaginable health state and 100 the best imaginable health state.

Time frame: At 30 days

ArmMeasureValue (MEAN)Dispersion
Portico™ Valve, Delivery System(s) and Loading System(s)EQ5D-3L Visual Analog Scale Value66.5 units on a scaleStandard Deviation 18.3
Portico™ Valve, FlexNav Delivery and Loading System(s)EQ5D-3L Visual Analog Scale Value66.0 units on a scaleStandard Deviation 18
Secondary

Implant Success

Time frame: At 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)Implant Success488 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Implant Success488 Participants
Secondary

Introducer Sheath Used

This is a yes or no question on the CRF. Sites report if the implanter used an introducer sheath (a special device used to facilitate introduction of the investigational device into the subjects vasculature).

Time frame: At 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)Introducer Sheath Used469 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Introducer Sheath Used120 Participants
Secondary

Kaplan-Meier Rate of All-cause Mortality

Kaplan-Meier (KM) percentage of subjects who died. KM is a statistical method that attempts to account for other factors that may have reduced the number of subjects evaluable at a given time point.

Time frame: At 12 months

ArmMeasureValue (NUMBER)
Portico™ Valve, Delivery System(s) and Loading System(s)Kaplan-Meier Rate of All-cause Mortality13.7 percentage of All-cause Mortality
Portico™ Valve, FlexNav Delivery and Loading System(s)Kaplan-Meier Rate of All-cause Mortality11.0 percentage of All-cause Mortality
Secondary

Number of Subjects Undergoing Conversion To Open Surgery

Time frame: At 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects Undergoing Conversion To Open Surgery3 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects Undergoing Conversion To Open Surgery3 Participants
Secondary

Number Of Subjects Undergoing Naïve Permanent Pacemaker Insertion

Time frame: At 30 days

Population: Subjects with a pacemaker at baseline are not included.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)Number Of Subjects Undergoing Naïve Permanent Pacemaker Insertion87 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number Of Subjects Undergoing Naïve Permanent Pacemaker Insertion84 Participants
Secondary

Number Of Subjects Undergoing Transcatheter Valve-In-Valve Deployment

Time frame: At 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)Number Of Subjects Undergoing Transcatheter Valve-In-Valve Deployment3 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number Of Subjects Undergoing Transcatheter Valve-In-Valve Deployment6 Participants
Secondary

Number of Subjects With Acute Kidney Injury

The increase in creatinine must occur within 48 hours. Stage 1: Increase in serum creatinine to 150% to 199% (1.5 to 1.99 X increase compared with baseline) or increase of greater than or equal to 0.3 mg/dL (26.4 mmol/L) or Urine output \<0.5 mL/kg per hour for \>6 but \<12 hours. Stage 2: Increase in serum creatinine to 200% to 299% (2.0 to 2.99 X increase compared with baseline) or Urine output \<0.5 mL/kg per hour for \>12 but \<24 hours. Stage 3: Increase in serum creatinine to greater than or equal 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 per hour for ≥24 hours or anuria for ≥12 hours. Patients receiving renal replacement therapy are considered to meet Stage 3 criteria irrespective of other criteria.

Time frame: At 30 days

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With Acute Kidney InjuryStage 14 Participants
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With Acute Kidney InjuryStage 20 Participants
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With Acute Kidney InjuryStage 37 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With Acute Kidney InjuryStage 15 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With Acute Kidney InjuryStage 23 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With Acute Kidney InjuryStage 34 Participants
Secondary

Number of Subjects With Annular Rupture

Time frame: At 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With Annular Rupture2 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With Annular Rupture1 Participants
Secondary

Number of Subjects With Bleeding Events

Time frame: At 30 days

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With Bleeding EventsLife Threatening16 Participants
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With Bleeding EventsMajor26 Participants
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With Bleeding EventsMinor31 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With Bleeding EventsLife Threatening18 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With Bleeding EventsMajor33 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With Bleeding EventsMinor20 Participants
Secondary

Number of Subjects With Coronary Obstruction

Time frame: At 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With Coronary Obstruction2 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With Coronary Obstruction3 Participants
Secondary

Number of Subjects With Myocardial Infarction

Time frame: At 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With Myocardial Infarction2 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With Myocardial Infarction1 Participants
Secondary

Number of Subjects With Paravalvular Leak (PVL)

Time frame: At 30 days

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With Paravalvular Leak (PVL)None/Trace/Trivial185 Participants
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With Paravalvular Leak (PVL)Mild188 Participants
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With Paravalvular Leak (PVL)Moderate9 Participants
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With Paravalvular Leak (PVL)Severe0 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With Paravalvular Leak (PVL)Severe0 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With Paravalvular Leak (PVL)None/Trace/Trivial158 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With Paravalvular Leak (PVL)Moderate7 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With Paravalvular Leak (PVL)Mild221 Participants
Secondary

Number of Subjects With Stroke

Time frame: At 30 days

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With StrokeDisabling Stroke8 Participants
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With StrokeNon-Disabling Stroke5 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With StrokeDisabling Stroke10 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With StrokeNon-Disabling Stroke6 Participants
Secondary

Number Of Subjects With Valve Embolization

Time frame: At 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)Number Of Subjects With Valve Embolization6 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number Of Subjects With Valve Embolization7 Participants
Secondary

Number of Subjects With Vascular Complications

Time frame: At 30 days

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With Vascular ComplicationsMajor32 Participants
Portico™ Valve, Delivery System(s) and Loading System(s)Number of Subjects With Vascular ComplicationsMinor36 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With Vascular ComplicationsMajor41 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)Number of Subjects With Vascular ComplicationsMinor25 Participants
Secondary

NYHA Classification

NYHA Functional Classification is a system used to assess patient heart failure severity based on their limitations of physical activity. The four classes are described below: 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. Subjects' NYHA Classification based on above criteria was assessed during follow up, and subjects were assigned to one of four classifications. Results are presented as percentage of all available subjects who were assigned each functional class (I-IV).

Time frame: At 30 days

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Portico™ Valve, Delivery System(s) and Loading System(s)NYHA ClassificationNYHA I152 Participants
Portico™ Valve, Delivery System(s) and Loading System(s)NYHA ClassificationNYHA II218 Participants
Portico™ Valve, Delivery System(s) and Loading System(s)NYHA ClassificationNYHA III58 Participants
Portico™ Valve, Delivery System(s) and Loading System(s)NYHA ClassificationNYHA IV3 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)NYHA ClassificationNYHA IV2 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)NYHA ClassificationNYHA I159 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)NYHA ClassificationNYHA III42 Participants
Portico™ Valve, FlexNav Delivery and Loading System(s)NYHA ClassificationNYHA II254 Participants
Secondary

Vessel Diameter

Time frame: At 30 days

ArmMeasureValue (MEAN)Dispersion
Portico™ Valve, Delivery System(s) and Loading System(s)Vessel Diameter7.42 mmStandard Deviation 1.44
Portico™ Valve, FlexNav Delivery and Loading System(s)Vessel Diameter7.09 mmStandard Deviation 1.36

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026