CClinicalTrials.gg
Active, not recruitingNCT04751578AAA-SHAPE_NLDUpdated Dec 22, 2025

Abdominal Aortic Aneurysm Sac Healing and Prevention of Endoleaks - Netherlands

An interventional study of IMPEDE-FX Embolization Plug in Abdominal Aortic Aneurysm, sponsored by Shape Memory Medical, Inc.. Active, not recruiting at 3 sites in Netherlands. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-12-22.

Sponsored by Shape Memory Medical, Inc. · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
15
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

To determine the safety and efficacy of IMPEDE-FX Embolization Plug and/or IMPEDE-FX Rapid Fill to fill an abdominal aortic aneurysm (AAA) sac outside of an endovascular aneurysm repair (EVAR) stent graft.

02

Conditions studied

  • Abdominal Aortic Aneurysm
03

In context

Aortic Aneurysm, Abdominal

473 studies on the registry are indexed under Aortic Aneurysm, Abdominal; 100 are open to participants now.

This study's enrollment of 15 is below the median of 66 across 233 interventional studies indexed under Aortic Aneurysm, Abdominal.

Browse Aortic Aneurysm, Abdominal studies →

Lead sponsor

Shape Memory Medical, Inc. is the lead sponsor of 8 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • ≥18 years of age
  • A candidate for elective EVAR of an infrarenal aortic aneurysm ≥5.5 cm in diameter in men and ≥5.0 cm in women

Exclusion criteria

Exclusion Criteria:

  • An inability to provide informed consent
  • Enrolled in another clinical study
  • Aortoiliac aneurysm, or concomitant iliac artery ectasia or aneurysm (common iliac artery diameter >24 mm) close to the bifurcation and/or that cannot be adequately sealed
  • Patent AAA sac feeding vessels (within the sac) >4 mm in diameter
  • Volume of AAA sac to be filled after stent graft placement \<20 mL or >135 mL, based on pre-procedure CTA (i.e. aortic flow volume exclusive of stent graft volume)
  • Use of aortic stent grafts other than the Gore Excluder AAA Endoprosthesis, Cook Zenith Flex AAA Endovascular Graft, or Medtronic Endurant II Stent Graft to treat the AAA
  • Planned use of the chosen stent graft outside its instructions for use (IFU)
  • Planned use of fenestrated or chimney stent grafts
  • Study participants in which stent graft placement is abandoned for any reason, and/or in which the investigator decides, during the course of the stent graft placement, that the study procedure may not be appropriate
  • Planned use of embolic devices other than the investigational product to embolize the AAA sac
  • Vascular disease and/or anatomy that preclude the safe access and positioning of a catheter to deliver the investigational product into the AAA sac
  • Ruptured, leaking, or mycotic (infected) aneurysm
  • Aneurysmal disease of the descending thoracic aorta
  • Coagulopathy or uncontrolled bleeding disorder
  • Long-term (>6 months prior to the procedure) use of direct oral anticoagulant or any vitamin K antagonist anticoagulant use
  • Serum creatinine level >2.5 mg/dL;
  • Cerebrovascular accident within 3 months prior to the procedure
  • Myocardial infarction and/or major heart surgery within 3 months prior to the procedure
  • Atrial fibrillation that is not well rate controlled
  • Unable or unwilling to comply with study follow-up requirements
  • Life expectancy of \<2 years post-procedure
  • Known hypersensitivity or contraindication to platinum, iridium, or polyurethane
  • A condition that inhibits radiographic visualization during the implantation procedure
  • History of allergy to contrast medium that cannot be managed medically
  • Uncontrolled co-morbid medical condition, including mental health issues, that would adversely affect participation in the study
  • Pregnant or a lactating female. For females of child-bearing potential, based on a positive pregnancy test within 7 days prior to the procedure or refusal to use a medically accepted method of birth control for the duration of the study
  • Prisoner or member of other vulnerable population.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
15 participants (actual)

Study arms

  • Experimental
    Intervention

    Device: IMPEDE-FX Embolization Plug

Interventions

  • DeviceIMPEDE-FX Embolization Plug

    Fill an abdominal aortic aneurysm (AAA) sac outside of an endovascular aneurysm repair (EVAR) stent graft

06

What researchers measure

Primary outcomes

  1. Incidence of related major adverse events (MAEs)

    Incidence of related major adverse events (MAEs)

    Time frame: 30 days post-procedure

  2. Efficacy - Technical Success

    Technical success, defined as filling of the residual flow lumen of the AAA sac with investigational products

    Time frame: Immediately after the intervention

Secondary outcomes

  1. Incidence of related major adverse events (MAEs)

    Incidence of related major adverse events (MAEs)

    Time frame: 5 years post-procedure

  2. Incidence of related serious adverse events (SAEs)

    Incidence of related serious adverse events (SAEs)

    Time frame: 5 years post-procedure

  3. Efficacy - Type II endoleaks

    Incidence of type II endoleaks

    Time frame: 5 years post-procedure

  4. Efficacy - Type I and type III endoleaks

    Incidence of type I and type III endoleaks

    Time frame: 5 years post-procedure

  5. Efficacy - AAA sac diameter/volume

    Change in AAA sac diameter/volume

    Time frame: 5 years post-procedure

  6. Efficacy - Open repair

    Rate of conversion to open AAA repair

    Time frame: 5 years post-procedure

  7. Efficacy - Reinterventions

    Rate of other reinterventions related to the AAA sac growth and/or complications

    Time frame: 5 years post-procedure

07

Study locations

3 sites
  • Rijnstate Hospital
    Arnhem, Gelderland 6800 TA, Netherlands
  • Dijklander Ziekenhuis
    Hoorn, North Holland 1624 NP, Netherlands
  • ETZ Elisabeth
    Tilburg, Tilburg 5022 GC, Netherlands
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 22, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04751578
Lead sponsor
Shape Memory Medical, Inc.
Responsible party
Sponsor
First posted
Feb 12, 2021
Start date
Jul 13, 2021
Primary completion
Apr 13, 2022
Completion
Apr 30, 2027 (estimated)
Last update
Dec 22, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Dec 2025. You cannot join it, but the record below documents what was studied.

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