DARTS I: Feasibility, Safety, and Performance Trial

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

7 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-03-07

Study Completion Date

2024-01-23

Brief Summary

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The objective of this study is to investigate the feasibility and clinical benefits of the AMDS to treat patients with acute DeBakey type I dissections and/or intramural hematomas (IMH) involving the ascending aorta and aortic arch through open surgical repair.

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Detailed Description

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AMDS is designed to complement the replacement of the ascending aorta with conventional surgical technique utilizing a conventional polyester graft. AMDS is constructed of an uncovered Nitinol wire braided stent attached proximally to a polytetrafluoroethylene (PTFE) felt graft component. The PFTE felt graft component excludes the FL at the distal aortic anastomosis and the wire stent re-expands the dissection flap within the arch and descending aorta, which aims to treat malperfusion and promote positive remodeling of the aorta.

The DARTS I Feasibility, Safety and Performance trial is a prospective, non-randomized, non-blinded, single-arm, multi-institutional Canadian study evaluating the feasibility and safety of the AMDS graft. A goal of 30 subjects will be enrolled at 1 site in Germany.

The enrollment period will span a minimum of 3 months from Institutional Review Board (IRB) approval and site activation. Candidates for this study are adults who require repair of an acute DeBakey type I aorta dissection and/or intramural hematoma (IMH). Patients will be consented pre-operatively and enrolled patients will be followed for approximately 5 years after their AMDS implantation date. Data will be collected at 10 time points: baseline (pre-operatively), discharge, 1 month post-operatively, 3 months post-operatively, and 6 months post-operatively, 1 year post-operatively and thereafter, annually, for a total of 5 years.

Conditions

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Acute DeBakey I Aortic Dissection Intramural Hematoma

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Prospective, non-randomized, non-blinded, single-arm study evaluating the feasibility and safety of the AMDS

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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AMDS Implantation

AMDS implantation is performed during an open chest procedure for intervention of aortic dissection repair.

Group Type EXPERIMENTAL

AMDS

Intervention Type DEVICE

The device will be implanted during an already planned surgical intervention for aortic dissection repair. The participant will be observed and data gathered during the surgery and routine standard of care follow up visits.

Interventions

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AMDS

The device will be implanted during an already planned surgical intervention for aortic dissection repair. The participant will be observed and data gathered during the surgery and routine standard of care follow up visits.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Informed Consent obtained
2. ≥18 years of age or ≤80 years of age (male or female)

Subject must have one of the following diagnosed, based on CT angiography, within 0-14 days:
3. Acute DeBakey I dissection or
4. Acute DeBakey I intramural hematoma (IMH)

Exclusion Criteria

Patients must be excluded from the study if any of the following conditions are true:

1. Less than 18 years of age or over 80 years of age
2. Life expectancy less than 2 years
3. Pregnant or breastfeeding or planning on becoming pregnant within 60 months
4. Unwilling to comply with the follow-up schedule
5. Refusal to give informed consent
6. Institutionalized individualized due to administrative or judicial order
7. Individuals with a dependent relationship to the sponsor or investigator

Patients must be excluded from the study if any of the following conditions are true:

1. Uncontrolled systemic infection
2. Uncontrollable anaphylaxis to iodinated contrast
3. Known allergy(ies) to Nitinol and/or PTFE
4. Patient in extreme hemodynamic compromise requiring cardiopulmonary resuscitation (CPR)
5. Inability to obtain CT angiograms for follow-up
6. Previously diagnosed with Marfan syndrome, Loeys- Dietz syndrome or Ehlers- Danlos syndrome with confirmed laboratory genetic testing on a date prior to the diagnosis of the dissection

1. Any pathology of mycotic origin
2. Subacute or chronic dissection of the ascending aorta and aortic arch (\>14 days after the index event)
3. Aortic fistulous communication with non-vascular structure (e.g. esophagus, bronchial)
4. Extensive thrombus or calcifications in the aortic arch as defined by CT angiography
5. Excessive tortuosity precluding safe passage of the AMDS as defined by CT angiography
6. Descending thoracic aneurysm involving the proximal third (1/3) of the descending aorta and measuring \> 45mm in diameter
7. Aortic arch aneurysm \> 45mm in diameter

Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No