Alternative Peripheral TAVI Accesses (APTA)

April 18, 2026 updated by: Damian Hudziak, Medical University of Silesia

The APTA (Alternative Peripheral TAVI Accesses) Registry.

The APTA (Alternative Peripheral TAVI Accesses) registry is an observational multi-center, retrospective and prospective study, including high and medium - risk patients with aortic stenosis (AS) contraindicates for trans-femoral TAVI, treated with TAVI thought to peripheral accesses. Upper Silesian Medical Center, Katowice and the other hospitals will be involved in the study.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Consecutive patients who underwent TAVI with peripheral alternatives accesses between September 2017 and February 2025 will be enrolled for the retrospective registry, while consecutive patients from February 2025 will be enrolled for the prospective registry. Baseline clinical, angiographic, and echocardiographic variables, together with procedural and follow-up outcomes data will be recorded in a dedicated database.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
600

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.
  • Name: Damian Hudziak MD PhD, MD PhD
  • Phone Number: 0048 323598644
  • Email: damhud@gmail.com

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

According to the guidelines of international societies (European Society of Cardiology, European Association for Cardio-Thoracic Surgery, American College of Cardiology, and American Heart Association), trans- catheter aortic valve implantation (TAVI) using access through the femoral artery is a preferred treatment method in patients at high- and medium-risk patients with severe aortic stenosis. Due to peripheral arterial disease, unfavorable, aortoiliac anatomy, or diseases of the thoracoabdominal aorta, femoral access is unavailable for approximately 15% of all TAVI candidates. Alternative approaches in TAVI procedures can be divided into two groups: transthoracic (trans-aortic and trans-apical) and peripheral (trans-carotid, trans-axillary, trans-subclavian, trans-caval).

Description

Inclusion Criteria:

  • Males or females qualified by the "heart team" for TAVI procedure, without the possibility of using femoral access.
  • Possibility of TAVI procedure with peripheral access after multi-slice computed tomography analysis.

Exclusion Criteria:

  • No significant aortic stenosis
  • Cancer with a short expected survival period
  • No qualifications for TAVI

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Non-femoral TAVI
high and medium - risk patients with aortic stenosis (AS) contraindicates for trans-femoral TAVI, treated with TAVI thought to peripheral accesses. Upper Silesian Medical Center, Katowice and the other hospitals will be involved in the study.
Procedure: TAVI procedures with an alternative access
Transcatheter aortic valve implantation via the common carotid artery and the subclavian or axillary artery
Other Names:
  • Transcarotid TAVI
  • Transaxillary TAVI

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Primary study endpoint will be according to VARC-3 criteria: Mortality Neurologic events, Hospitalization (or re-hospitalization), Bleeding and transfusions, Vascular and access-related complications, Cardiac and other procedural complications.
Time Frame: Preoperative data (on the day of admission to hospital) Operative data ( day of TAVI procedure) Postoperative data (more than 1 day after TAVI procedure to the day of discharge )
Preoperative data : Age (years), sex (male, female), weight (kg), height (m), BMI (kg/m2), EuroSCORE II (%), NYHA Class (New York Heart Assocation) Labolatory examinations: creatynine (mg/dl), GFR (glomerular filtration rate) ml/min/1,73m2, Troponine T level (ng/ml), Hemoglobin (g/dl), Hematocrit (%) Echocardiography (ECHO): LVEF: left ventricular ejection fraction (%), Pg max: aortic valve maximal gradient (mmHg), Pg mean: aortic valve mean gradient (mmHg), AVA: aortic valve area (cm2), Vmax: transaortic peak instantaneous velocity (m/s). Operative data: procedural success, technical aspect of TAVI procedural time, cerebral oximetry (%), vascular (acces) and cardiac complication. Postoperative data (more than 1 day after TAVI procedure to the day of discharge ), mortality, stroke, TIA (transient ischemic attack) , new onset atrial fibrillation, new pacemaker implantation, cardiac tamponade, psychosis, NYHA Class (New York Heart Assocation) Labolatory examinations as before TAVI
Preoperative data (on the day of admission to hospital) Operative data ( day of TAVI procedure) Postoperative data (more than 1 day after TAVI procedure to the day of discharge )

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Secondary Outcome
Time Frame: at 30-days and at 1-year after TAVI procedure
Secondary endpoints will include, according to the VARC-3 criteria: technical success of the device (correct measurements of flow velocity and gradients on echocardiogram and no paravalvular leaks) after 30 days, early safety after 30 days (mortality, neurological complications, rehospitalizations, no cardiac complications) and clinical efficacy (after one year). Analysis of parameters according to the criteria described above.
at 30-days and at 1-year after TAVI procedure

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Medical University of Silesia

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 15, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 3, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 13, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 20, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 23, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 18, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 01DH

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Data necessary for statistical analysis describing the safety of TAVI procedures using alternative approaches in accordance with the VARC-3 guidelines.

IPD Sharing Time Frame

01.05.2026-01.07.2026

IPD Sharing Access Criteria

Statistical analysts and members of my team. Data will be transferred on data carriers (flash drives).

IPD Sharing Supporting Information Type

  • SAP
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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