Skip to main content
OpenTrials
Active, Not Recruiting

NCT Number: NCT04383145

A Study in Patients With Thoracoabdominal Aortic Aneurysm Treated With the E-nside TAAA Multibranch Stent Graft System

The INNER-B post-market clinical follow-up study is undertaken to evaluate the prevention of death related to a thoracoabdominal aneurysm when treated by the E-nside TAAA Multibranch Stent Graft System.

The secondary objective is to evaluate the safety and clinical performance of the device.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

Notify Me

Key information

Age range

18 year–85 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Universitätsklinikum Heidelberg

Heidelberg, 69120, Germany

About this study

In this study patients will be observed, who receive an E-nside TAAA Multibranch Stent Graft System for the endovascular treatment of a degenerative, atherosclerotic thoracoabdominal aortic aneurysm. The E-nside TAAA Multibranch Stent Graft will be implanted at the discretion of the treating physician.

Participating physicians will be asked to provide their observations collected during routine care for patients he/she had decided to treat with the E-nside TAAA Multibranch Stent Graft System. Informed consent of the patients to allow the use of their clinical records for the purpose of this observational study will be obtained before data are being collected.

The period of data collection will be approximately 60 months from the index procedure for each patient. Source document verification will be performed on 100% of patients; data from all visits will be reviewed and verified against existing source documents. Complete DICOM image files of the CT scans will be sent to the CoreLab for independent evaluation.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Patient is between 18 and 85 years old
  • Patient has a degenerative, atherosclerotic thoracoabdominal aortic aneurysm
  • Patient has adequate iliac/femoral access compatible with an 8.5 mm OD delivery system
  • Patient's aorta has no distinct angulation in the thoracovisceral segment of the aorta ranging from 40 mm proximal to the celiac trunk to 20 mm distal to the lowest renal artery
  • All target branch vessels are suitable for antegrade cannulation
  • Diameter of the landing zone in each branch vessel to be treated is ≥ 5 mm
  • Length of landing zone in each branch vessel to be treated is ≥ 15 mm (preferably ≥ 20 mm)
  • Patient must be available for the appropriate follow-up times for the duration of the study
  • Patient has signed the informed consent before implantation of the E-nside Stent Graft

Exclusion criteria

  • Patient has allergies to materials necessary for endovascular repair (e.g. contrast media, anticoagulants or heparin, nitinol, polyester, gold, platinum-iridium)
  • Patient has systemic infection or suspected systemic infection
  • Patient has an infectious aneurysm
  • Patient has an inflammatory aneurysm
  • Patient has a ruptured aneurysm
  • Patient has a traumatic aneurysm
  • Patient has a symptomatic aneurysm
  • Patient has an aortic dissection
  • Patient has a congenital degenerative collagen disease or connective tissue disorder
  • Diameter of ostium of branch vessel to be treated < 4 mm
  • Patient has thrombocytopenia (platelet count < 150000/µl)
  • Patient has an eGFR < 30 ml/min/1.73m2 before the enrolment
  • Patient has untreated hyperthyroidism
  • Patient has a malignancy (progressive, stable or partial remission) with less than one-year projected survival
  • Patient had a myocardial infarction or cerebrovascular accident < 3 months ago
  • Patient is planned to be treated with a chimney in the left subclavian artery
  • Patient has had a previous surgical repair of descending thoracic aorta
  • Patient will be treated or had been treated with a Nellix (Endologix) or Ovation (Endologix) or Altura (Lombard Medical) or Anaconda (Vascutek) stent graft
  • Patient is enrolled or plans to be enrolled in another clinical study
  • Patient is pregnant or breastfeeding or planning to become pregnant during the course of the study.
  • Patient has a life expectancy of less than 3 years

Treatment and study plan

endovascular repair

Device

Endovascular repair of thoracoabdominal aneurysm using stent grafts.

Primary outcomes

  1. Mortality

    Time frame: 30-day

    Rate of all-cause mortality

Secondary outcomes

  1. Mortality

    Time frame: 24 hours

    Rate of all-cause mortality in peri-operative periods (all related interventions)

  2. Mortality

    Time frame: 3-6, 12, 24, 36, 60 months

    Rate of all-cause mortality

  3. Rupture

    Time frame: 30-day, 3-6, 12, 24, 36, 60 months

    Rate of patients with aneurysm rupture

  4. Major Adverse Events (MAE)

    Time frame: prior to discharge, 30 days, 3-6, 12, 24, 36, 60 months

    Rate of patients with major adverse events (aneurysm related death, aneurysm rupture, new myocardial infarction requiring intervention (percutaneous transluminal coronary angioplasty, bypass), new disabling stroke, visceral ischemia (bowel ischemia with surgery or submission to ICU or bowel necrosis with surgery or submission to ICU), new hepatic infarction, new chronic renal insufficiency/renal failure requiring dialysis, new permanent paraplegia, new permanent paraparesis, lower limb ischemia (increase in Rutherford classification) (product-related, procedure-related, aneurysm-related)

  5. Number of intervention(s)

    Time frame: perioperative

    Rate of interventions in peri-operative periods (all related interventions until index procedure)

  6. Delivery time

    Time frame: perioperative

    Rate of time intervals the E-nside delivery system remained in the access vessels in relation to the number of branches treated with pre-cannulation

  7. Reintervention

    Time frame: 30 days, 3-6, 12, 24, 36, 60 months

    Rate of reintervention(s)

  8. Endoleak Type Ia

    Time frame: 12, 24, 36, 60 months

    Rate of patients with type Ia endoleak

  9. Endoleak Type Ib

    Time frame: 12, 24, 36, 60 months

    Rate of patients with type Ib endoleak

  10. Endoleak Type Ic

    Time frame: 12, 24, 36, 60 months

    Rate of patients with type Ic endoleak

  11. Endoleak Type II

    Time frame: 12, 24, 36, 60 months

    Rate of patients with type II endoleak

  12. Endoleak Type III

    Time frame: 12, 24, 36, 60 months

    Rate of patients with type III endoleak

  13. Endoleak Type IV

    Time frame: 12, 24, 36, 60 months

    Rate of patients with type IV endoleak

  14. Endoleak of unknown origin

    Time frame: 12, 24, 36, 60 months

    Rate of patients with endoleak of unknown origin

  15. Proximal intercomponent separation

    Time frame: prior to discharge/30 days, 12, 24, 36, 60 months

    Rate of patients with intercomponent separation at the proximal end of the E-nside stent graft > 10 mm

  16. Distal intercomponent separation

    Time frame: prior to discharge/30 days, 12, 24, 36, 60 months

    Rate of patients with intercomponent separation at the distal end of the E-nside stent graft > 10 mm

  17. Integrity

    Time frame: prior to discharge/30 days, 12, 24, 36, 60 months

    Rate of patients with loss of device integrity (stent fracture and tear in graft material and suture break)

  18. Kinking

    Time frame: prior to discharge/30 days, 12, 24, 36, 60 months

    Rate of patients with E-nside stent graft or bridging stent graft kinking

  19. Primary patency

    Time frame: prior to discharge/30 days, 12, 24, 36, 60 months

    Rate of primary patency of bridging stents

  20. Primary patency of bridging stent of the celiac trunk

    Time frame: prior to discharge/30 days, 12, 24, 36, 60 months

    Rate of primary patency of the bridging stent of the celiac trunk

  21. Primary patency of bridging stent of the superior mesenteric artery

    Time frame: prior to discharge/30 days, 12, 24, 36, 60 months

    Rate of primary patency of the bridging stent of the superior mesenteric artery

  22. Primary patency of bridging stent of the right renal artery

    Time frame: prior to discharge/30 days, 12, 24, 36, 60 months

    Rate of primary patency of the bridging stent of the right renal artery

  23. Primary patency of bridging stent of the left renal artery

    Time frame: prior to discharge/30 days, 12, 24, 36, 60 months

    Rate of primary patency of the bridging stent of the left renal artery

  24. Secondary patency

    Time frame: prior to discharge/30 days, 12, 24, 36, 60 months

    Rate of secondary patency of bridging stents

  25. Secondary patency of the bridging stent of the celiac trunk

    Time frame: prior to discharge/30 days, 12, 24, 36, 60 months

    Rate of secondary patency of the bridging stent of the celiac trunk

  26. Secondary patency of the bridging stent of the superior mesenteric artery

    Time frame: prior to discharge/30 days, 12, 24, 36, 60 months

    Rate of secondary patency of the bridging stent of the superior mesenteric artery

  27. Secondary patency of the bridging stent of the right renal artery

    Time frame: prior to discharge/30 days, 12, 24, 36, 60 months

    Rate of secondary patency of the bridging stent of the right renal artery

  28. Secondary patency of the bridging stent of the left renal artery

    Time frame: prior to discharge/30 days, 12, 24, 36, 60 months

    Rate of secondary patency of the bridging stent of the left renal artery

  29. Infection

    Time frame: 30-day, 12, 24, 36, 60 months

    Rate of patients with stent graft infection

  30. Primary technical success

    Time frame: 24 hours

    Rate of patients with primary technical success. Technical success is achieved in case all above mentioned criteria are fulfilled, however, an additional unplanned endovascular or surgical procedure is necessitated within 24 h after the index procedure.

    Successful introduction and deployment of the E-nside TAAA Multibranch Stent Graft in the absence of:

    Surgical conversion Mortality Reintervention Unplanned branch vessel occlusion (post-operative occlusion)

    Including:

    Secure proximal and distal fixation Patent treated branch vessels

  31. Technical success

    Time frame: 24 hours

    Rate of patients with technical success. Technical success is achieved in case all above mentioned criteria are fulfilled, however, an additional unplanned endovascular or surgical procedure is necessitated after the index procedure.

  32. Primary clinical success

    Time frame: 12, 24, 36, 60 months

    Rate of patients with primary clinical success.

    Primary clinical success is reported on an intent-to-treat basis and is reached if the following criteria are fulfilled at the time of follow-up starting at 12 months follow-up:

    Successful deployment of the endovascular devices at the intended location in the absence of:

    Death as result of aneurysm-related treatment Conversion to open repair Reintervention after index procedure Occlusion of treated branch vessels Type I or III endoleak Increasing aneurysm size Aneurysm rupture

  33. Clinical success

    Time frame: 12, 24, 36, 60 months

    Rate of patients with clinical success. Clinical success is achieved in case all above mentioned criteria are fulfilled, however, an additional unplanned endovascular or surgical procedure is necessitated after the index procedure.

  34. Stable aneurysm size

    Time frame: 12, 24, 36, 60 months

    Rate of patients with stable aneurysm size

  35. Decreasing (< 5 mm) aneurysm size

    Time frame: 12, 24, 36, 60 months

    Rate of patients with decreasing aneurysm size

  36. Increasing (> 5 mm) aneurysm size

    Time frame: 12, 24, 36, 60 months

    Rate of patients with increasing aneurysm size

  37. Stent graft removal

    Time frame: 24 hours, prior to discharge/30 days, 12, 24, 36, 60 months

    Rate of patients with removal or failure to implant the E-nside TAAA Multibranch Stent Graft

Sponsors and collaborators

Lead sponsor

JOTEC GmbH

Industry

Registry information

Official study title

INNER-B - A Post-market Clinical Follow-up Study in Patients With Thoracoabdominal Aortic Aneurysms Treated With E-nside TAAA Multibranch Stent Graft System

Acronym: INNER-B

Important dates

Study start
2020
Primary completion
2025
Study completion
2030
First posted
May 12, 2020
Registry last updated
Feb 17, 2026

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.

Published trials that share one or more normalized conditions with this study.