An Evolut™ EXPAND TAVR II Pivotal Trial

Overview

About this study

The purpose of this study is to obtain safety and effectiveness data to support indication expansion for the Medtronic transcatheter aortic valve replacement (TAVR) System to include patients with moderate, symptomatic Aortic Stenosis (AS).

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Key Inclusion Criteria:

o Moderate AS, defined as follows by transthoracic echo (TTE) as assessed by the ECL:

* AVA \>1.0 cm² and \<1.5cm²; or
* AVA ≤ 1.0 cm² with AVAI \> 0.6cm²/m² if BMI \< 30 kg/m²: or
* AVA ≤ 1.0 cm² with AVAI \> 0.5cm²/m² if BMI ≥ 30 kg/m²:

and

* Max aortic velocity ≥ 3.0 m/sec. and \< 4.0 m/sec. or
* Mean aortic gradient ≥ 20mmHg and \< 40.0 mmHg

Any of the following at-risk features:

* Symptoms of AS, defined as:
* NYHA ≥ Class II, or
* Reduced functional capacity, defined as

* 6MWT \< 300 meters, or
* \< 85% of age-sex predicted METs on exercise tolerance testing (ETT)
* Documented heart failure event or hospitalization for heart failure within 1 calendar year prior to consent
* NT-proBNP ≥ 600 pg/ml (or BNP ≥ 80 pg/ml), or
* Persistent AF or Paroxysmal AF episode within 6 months prior to consent, or
* Elevated aortic valve calcium score (\>1200 AU for females and \> 2000 AU for males) as assessed by the MDCT core lab, or
* Any of the following by the qualifying TTE as assessed by the ECL:

* Global longitudinal strain ≤16% (absolute value), or
* E/e' ≥ 14.0 (average of medial and lateral velocities), or
* Diastolic dysfunction ≥ Grade II, or
* LVEF \< 60%
* Stroke Volume Index \< 35 ml/m²
* Anatomically suitable for transfemoral TAVR using the Medtronic Evolut PRO+ or Evolut FX system
* The subject and the treating physician agree the subject will return for all required follow-up visits

Key Exclusion Criteria:

* Age \< 65 years
* LVEF ≤ 20% by 2-D echo
* Class I indication for cardiac surgery
* Contraindication for placement of a bioprosthetic valve
* Documented history of cardiac amyloidosis

Note: Other protocol defined Inclusion/Exclusion Criteria may apply.

Eligibility last updated 6/04/2024. Questions regarding updates should be directed to the study team contact.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Mackram Eleid, M.D.

Open for enrollment

Contact information:

Structural Heart Disease Research Coordinators

(507) 255-6133

More information

Publications

Publications are currently not available
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CLS-20541741

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