ClinicalTrials.gg
Active, not recruitingNCT02818972RelayPro-AUpdated May 31, 2025

RelayPro Thoracic Stent-Graft in Subjects With Thoracic Aortic Aneurysms and Penetrating Atherosclerotic Ulcers

An interventional study of RelayPro in Aortic Aneurysm, Thoracic and Penetrating Ulcer, sponsored by Bolton Medical. Active, not recruiting at 35 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-05-31.

Sponsored by Bolton Medical (part of Terumo Corporation) · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
110
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

Investigate the safety and effectiveness of the RelayPro Thoracic Stent-Grafts in subjects with thoracic aortic aneurysms (TAA) and penetrating atherosclerotic ulcers (PAU) of the descending thoracic aorta.

Read the detailed description

The objective of this study is to investigate the safety and effectiveness of the RelayPro Thoracic Stent-Grafts in subjects with thoracic aortic aneurysms and penetrating atherosclerotic ulcers of the descending thoracic aorta.

02

Conditions studied

  • Aortic Aneurysm, Thoracic
  • Penetrating Ulcer
03

In context

Aortic Aneurysm, Thoracic

131 studies on the registry are indexed under Aortic Aneurysm, Thoracic; 33 are open to participants now.

This study's planned enrollment of 110 is above the median of 50 across 62 interventional studies indexed under Aortic Aneurysm, Thoracic.

Browse Aortic Aneurysm, Thoracic studies →

Lead sponsor

Bolton Medical is the lead sponsor of 14 studies on the registry; none are open to participants now.

First submitted before Bolton Medical became part of Terumo Corporation.

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

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Subject must be ≥ 18 years of age
  • Subject has specified disease in his/her descending thoracic aorta.
  • Subject have anatomical compliance for the device specified for both access vessels and treatment area.
  • Subject must be willing to comply with the follow-up evaluation schedule.
  • Subject (or Legally Authorized Representative) agrees an Form prior to treatment.

Exclusion criteria

Exclusion Criteria:

  • Subject has specified disease of the thoracic aorta which is not included in the trial, for example: aortic dissection, intramural hematoma, traumatic injury or transection, aortic false aneurysm, ruptured aneurysm.
  • Subject anatomy with significant stenosis, calcification, thrombus or tortuosity.
  • Subjects with specified compromised circulation.
  • Subjects with specified prior procedures.
  • Subjects with allergy to contrast media or device components.
  • Subjects with disease, for example: suspected connective tissue disorder, specified coagulation disorders, specified coronary artery disease, severe congestive heart failure, stroke and/or Myocardial Infarction (MI) as specified, specified pulmonary disease, specified renal failure.
  • Subjects that are pregnant or planning to become pregnant during the course of the study.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

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

Study arms

  • Experimental
    RelayPro

    Endovascular treatment with the investigational device.

    Device: RelayPro

Interventions

  • DeviceRelayPro

    Endovascular treatment with investigational device.

06

What researchers measure

Primary outcomes

  1. Rate of Major Adverse Events (MAEs)

    Primary safety endpoint is a composite of the following MAEs occurring through 30 days: * Death * Stroke (excluding transient ischemic attack) * Paralysis (excludes paraparesis)

    Time frame: 30 days

  2. Technical success

    Primary effectiveness rate as measured by the technical success through 24 hours, defined as: * Successful delivery of the device through the vasculature; * Successful deployment of the device at the intended location; Absence of Type I or III endoleaks; Patent stent-graft without significant stenosis.

    Time frame: 24 hours

  3. Stent graft patency

    Primary effectiveness as measured by the rate of stent-graft patency through 12 months.

    Time frame: 12 months

  4. Aneurysm rupture

    Primary effectiveness as measured by the absence of aneurysm rupture through 12 months.

    Time frame: 12 months

  5. Absence of Type I and III endoleak through 12 months;

    Primary effectiveness as measured by the absence of Type I and III endoleak through 12 months.

    Time frame: 12 months

  6. Absence of stent fractures in the attachment zone through 12 months

    Primary effectiveness as measured by the absence of stent fractures in the attachment zone through 12 months.

    Time frame: 12 months

  7. Absence of open or endovascular secondary interventions

    Primary effectiveness as measured by the absence of open or endovascular secondary interventions related to the device or treated pathology through 12 months.

    Time frame: 12 months

  8. Absence of aneurysm expansion (> 5 mm diameter increase)

    Primary effectiveness as measured by the absence of aneurysm expansion (\> 5 mm diameter increase) through 12 months, compared to the first post-procedural computed tomographic (CT) imaging study.

    Time frame: 12 months

  9. Absence of stent-graft migration

    Primary effectiveness as measured by the absence of stent-graft migration (\> 10 mm) through 12 months, compared to the first post-procedural CT.

    Time frame: 12 months

Secondary outcomes

  1. Loss of stent-graft patency

    Loss of stent-graft patency will be assessed with CT scans, or MRIs for subjects unable to tolerate contrast media.

    Time frame: 1 month and 6 months

  2. Rate of aneurysm rupture

    The rate of aneurysm rupture through 1 month and 6 months will be assessed by review of CT or MRI imaging, in addition to site reported adverse events.

    Time frame: 1 month and 6 months

  3. Rate of endoleaks of all types

    Persistence of blood flow outside the lumen of the stent-graft but within the native aorta or adjacent vascular segment being treated by the stent-graft will be assessed by CT scans or MRIs for subjects unable to tolerate contrast media.

    Time frame: 1 month, 6 months and 12 months

  4. Rate of stent fractures in the attachment zone

    Stent fractures in the attachment zone will be assessed at each follow-up visit with CT scans, or MRIs for subjects unable to tolerate contrast media.

    Time frame: 1 month and 6 months

  5. Incidence of open or endovascular secondary interventions

    Secondary effectiveness will be measured by the incidence of open or endovascular secondary interventions related to the device or treated pathology (ie, interventions to treat malperfusion, rupture, aneurysm formation, or aortic expansion).

    Time frame: 1 month and 6 months

  6. Rate of aneurysm expansion

    The rate of aneurysm expansion (\> 5 mm diameter increase) assessed by comparison of follow-up imaging to the first post-procedural CT

    Time frame: 1 month and 6 months

  7. Rate of stent-graft migration

    The rate of stent-graft migration (\> 10 mm) assessed by comparison of follow-up imaging to the first post-procedural CT.

    Time frame: 1 month and 6 months

  8. Individual outcomes of composite MAEs

    Secondary effectiveness as measured by the individual outcomes of the composite safety endpoints (death, stroke, paralysis), as well as myocardial infarction (MI), renal failure, respiratory failure, bowel ischemia, and procedural blood loss \>1,000 cc.

    Time frame: 6 months and 12 months

  9. Rate of vascular access complications

    Secondary effectiveness as measured by the rate of vascular access complications reported during the Treatment visit (stent-graft implant). Outcome measures include successful delivery and deployment of the device, as well as withdrawal of the delivery system.

    Time frame: During the initial implant attempt

  10. Duration of implant procedure

    Duration of the initial implant procedure captured as the number of minutes from introduction of device to removal of delivery system.

    Time frame: Treatment Visit

  11. Number of blood transfusions

    Number of transfusions (units) required from the time of implant through hospital discharge.

    Time frame: Treatment Visit through Discharge Visit

  12. Duration of hospitalization

    Length of hospital stay defined as number of days subject was hospitalized for the initial implant procedure.

    Time frame: Treatment Visit through Discharge Visit

  13. Time in Intensive Care Unit (ICU)

    Duration of time in hours that subject was admitted to the Intensive Care Unit (ICU) following the implant procedure.

    Time frame: Treatment Visit through Discharge Visit

07

Study locations

35 sites
08

References and documents

Publications

  • Szeto WY, Vallabhajosyula P, Matsuda H, Moainie SL, Sharafuddin MJ, Corvera J, Smolock CJ, Miyamoto S, Naslund T, Ramaiah V; RelayPro-A Investigators. One-year results with a low-profile endograft in subjects with thoracic aortic aneurysm and ulcer pathologies. J Thorac Cardiovasc Surg. 2022 May;163(5):1739-1750.e4. doi: 10.1016/j.jtcvs.2021.10.071. Epub 2022 Feb 1. PubMed 35241276 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 31, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02818972
Lead sponsor
Bolton Medical
Responsible party
Sponsor
First posted
Jun 30, 2016
Start date
May 10, 2017
Primary completion
Jun 24, 2022
Completion
Dec 2025 (estimated)
Last update
May 31, 2025

Study contacts

Wilson Szeto, MD
principal investigator · Penn Presbyterian
Venkatesh Ramaiah, MD
principal investigator · Arizona Heart Institute

Oversight

Data monitoring committee
Yes
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 Apr 2025. You cannot join it, but the record below documents what was studied.

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