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NCT Number: NCT05721001

French Registry Conducted on E-vita OPEN NEO

Observational, prospective/retrospective, non-randomised, non-comparative, multicentre cohort study.

Primary objective is evaluation of in-hospital all-cause mortality after treatment of extensive acute and chronic aortic pathologies with E-vita OPEN NEO.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

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Key information

Sex eligibility

All sexes

Study type

Observational

Primary location

CHU Amiens-Picardie, Amiens, France

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About this study

Objectives

Primary objective:

  • Evaluation of in-hospital all-cause mortality after treatment of extensive acute and chronic aortic pathologies with E-vita OPEN NEO

Secondary objective:

  • Evaluation of the morbi-mortality in-hospital, 1 year and 3 years follow-up after treatment of extensive acute and chronic aortic pathologies with E-vita OPEN NEO.

Morbidity is defined as:

  • new permanent (> 30 days) neurological complications (stroke mRS > 2, spinal cord ischemia, paraparesis, paraplegia)
  • new clinical malperfusion (including visceral malperfusion)
  • new permanent (>90 days) renal insufficiency requiring dialysis or hemofiltration in patients with normal pre-procedure serum creatinine level The others secondary objectives are to assess changes of the stent graft system in the medium (1 year) and long term (3 years):
  • type Ib, II, or IV endoleaks in patients with aneurysm or type Ib or II entry flow in patients with dissection
  • permeability of the vascular part

Patient population All patients treated with E-vita OPEN NEO until 31st March 2024 will be included in this registry if they are not opposed to the study. Follow-up of these patients will end in 2027.

Patients to be documented:

All male and female patients who have undergone implantation of E-vita OPEN NEO at their physician's discretion in France since device CE marking in 2020 and until 31st March 2024.

Inclusion/Exclusion Criteria None Indications for Use for E-vita OPEN NEO are listed in the device IFU. Patients are treated with E-vita OPEN NEO at the discretion of the treating physician.

Methodology In this study, we will conduct an observational cohort of consecutive patients who receive / received an E-vita OPEN NEO implant for the treatment of extensive acute or chronic aortic pathologies until 31st March, 2024. Participating physicians will be asked to provide their observations collected during routine care for patients he/she had decided to treat with E-vita OPEN NEO. All patients will be provided with a non-objection letter and given the opportunity to refuse to participate. Patients will either receive the non-objection letter before treatment or it is mailed to them by their treating physician.

A screening log will be kept during the study. In the screening log it will be documented which patients objected to the collection of their data and were therefore not included in the registry. The number of E-vita OPEN NEO implanted in France during the enrolment phase of the study will be submitted and compared to the number of patients enrolled in the study to assess the coverage of the study.

Patient data will be documented at the following time points: Pre-operative planning, intervention, prior to discharge from hospital, 1 year, and 3 years follow-up. The period of data collection will be 3 years ± 6 months (depending on the time point of the 3 years follow-up visit) starting from the intervention for each patient. All adverse events defined prior to study start will be adjudicated by the Clinical Event Committee (CEC).

Inclusion period (retrospective/prospective): Q3 2022 till Q1 2024 Follow-up: 3 years Total study period: 6 years

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • non-objection from the patient for data collection within this Registry
  • patient treated with E-vita Open NEO

Exclusion criteria

  • objection from the patient for data collection within this Registry

Treatment and study plan

Surgical Repair

Device

In Frozen Elephant Trunk procedure, the proximal aortic arch is replaced with a dacron graft, and a thoracic stent graft, sutured to the distal end of the dacron prosthesis, is deployed antegradely into the descending aorta. This mostly one-stage alternative approach eliminates the interval mortality rate related to the conventional elephant trunk procedure. Moreover, it constitutes a solution in fragile patients who cannot safely complete a second major operation after surviving the first.

Other names: Frozen Elephant Trunk Technique

Primary outcomes

  1. Mortality

    Time frame: through study completion, an average of 3 years

    Rate of in-hospital all-cause mortality

Secondary outcomes

  1. Mortality

    Time frame: 1 year and 3 years

    All-cause mortality

  2. Morbidity

    Time frame: 1 year and 3 year

    new neurological complication (defined as stroke, spinal cord ischemia, paraparesis, paraplegia), new clinical malperfusion (including visceral malperfusion), new permanent (> 90 days) renal insufficiency requiring dialysis or hemofiltration in patients with normal pre-procedure serum creatinine level

  3. Severe Adverse Events

    Time frame: 1 year

    Rate of patients with SAE until 1 year follow-up (device-related, procedure-related, disease-related)

  4. Severe Adverse Events

    Time frame: 3 years

    Rate of patients with SAE between 1 year and 3 year year follow-up (device-related, procedure-related, disease-related)

  5. Neurological complications

    Time frame: At discharge, an average of 45 days, 1 year, 3 years

    Rate of patients with New permanent (> 30 days) neurological complications

  6. Neurological complications

    Time frame: At discharge, an average of 45 days, 1 year, 3 years

    Rate of patients with New transient (≤ 30 days) neurological complications

  7. Stroke

    Time frame: At discharge, an average of 45 days, 1 year, 3 years

    New permanent (> 30 days) stroke

  8. Stroke

    Time frame: At discharge, an average of 45 days, 1 year, 3 years

    Rate of patients with New transient (≤ 30 days) stroke

  9. Paraplegia

    Time frame: At discharge, an average of 45 days, 1 year, 3 years

    Rate of patients with New permanent (> 30 days) paraplegia

  10. Paraparesis

    Time frame: At discharge, an average of 45 days, 1 year, 3 years

    Rate of patients with New permanent (> 30 days) paraparesis

  11. Paraparesis

    Time frame: At discharge, an average of 45 days, 1 year, 3 years

    Rate of patients with New transient (≤ 30 days) paraparesis

  12. Malperfusion

    Time frame: At discharge, an average of 45 days, 1 year, 3 years

    Rate of patients with New clinical visceral malperfusion

  13. Renal Insufficiency

    Time frame: At discharge, an average of 45 days, 1 year, 3 years

    Rate of patients with New transient (≤ 90 days) renal insufficiency requiring dialysis or hemofiltration

  14. Renal Insufficiency

    Time frame: At discharge, an average of 45 days, 1 year, 3 years

    Rate of patients with New permanent (> 90 days) renal insufficiency requiring dialysis or hemofiltration

  15. Permeability

    Time frame: 1 year, 3 years

    Rate of patients with Permeability of the vascular part

  16. Reinterventions

    Time frame: 1 year, 3 years

    Rate of patients with Reinterventions (device-related, procedure-related, disease-related)

  17. Additional interventions

    Time frame: 1 year, 3 year

    Rate of patients with Unplanned / planned additional interventions

  18. Bleeding

    Time frame: At discharge, an average of 45 days, 1 year, 3 years

    Re-exploration due to bleeding

  19. Endoleaks

    Time frame: At discharge, an average of 45 days, 1 year, 3 years

    Rate of patients with Endoleak type Ib, II, III or IV

  20. False Lumen

    Time frame: At discharge, an average of 45 days, 1 year, 3 year

    Rate of patients with Obliterated, completely thrombosed, partially thrombosed, or patent false lumen in the stented region

  21. Entry flow

    Time frame: At discharge, an average of 45 days, 1 year, 3 year

    Rate of patients with Type Ib, II or R entry flow, endoleak of unknown origin

Sponsors and collaborators

Lead sponsor

JOTEC GmbH

Industry

Collaborators

  • ICON plc

Registry information

Official study title

NEO - E-vita Open Neo Treatment of Aortic Arch Aneurysms and Dissections

Acronym: NEO

Important dates

Study start
2023
Primary completion
2024
Study completion
2027
First posted
Feb 9, 2023
Registry last updated
Mar 28, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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