An interventional study of Endovascular Branched Stent-Graft in Thoracoabdominal Aortic Aneurysm and Paravisceral Abdominal Aortic Aneurysm, sponsored by Warren J. Gasper, MD. Recruiting at 2 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-11-10.
Sponsored by Warren J. Gasper, MD · Not applicable, Interventional, and Treatment
This is a study to assess the safety and effectiveness of endovascular treatment of thoracoabdominal (TAAA) and paravisceral abdominal (PVAAA) aortic aneurysms. The investigational operation involves placing a stent-graft over the aortic aneurysm.
A TAAA or PVAAA is an abnormal enlargement of the aorta, the main artery in the chest and abdomen. The standard operation for TAAA of PVAAA is performed through a long incision extending down the side of the chest and the front of the abdomen. In the standard operation, the weak area of the aorta is replaced with a fabric sleeve (graft). The investigational operation is done making small incisions in both groins and the right arm and placing a graft in the aorta through tubes that are inserted through the femoral and brachial arteries, than fastening it in position with metal springs(stents). The combination of a stent and a graft is known as a stent-graft. Compared with standard operation, the potential advantages of endovascular TAAA/PVAAA repair include less pain, less disturbance of intestinal function, a lower risk of pulmonary or cardiac complications and shorter hospital stay. The main disadvantage of endovascular TAAA/PVAAA is an unknown success rate.
63 studies on the registry are indexed under Aortic Aneurysm, Thoracoabdominal; 31 are open to participants now.
This study's planned enrollment of 250 is above the median of 80 across 41 interventional studies indexed under Aortic Aneurysm, Thoracoabdominal.
Browse Aortic Aneurysm, Thoracoabdominal studies →This is the only study on the registry with Warren J. Gasper, MD as lead sponsor.
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Aortic aneurysms:
Exclusion Criteria
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.
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
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.
Life expectancy
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Endovascular Branched Stent-Graft: The investigational operation is done making small incisions in both groins and the right arm and placing a graft in the aorta through tubes that are inserted through the femoral and brachial arteries, than fastening it in position with metal springs(stents).
Device: Endovascular Branched Stent-Graft
Industry manufactured branched stent-graft for treatment of TAAA/PVAAA.
Successful implantation of TAAA branched stent-graft.
Time frame: 1 month
Long term success of TAAA branched stent-graft treatment.
Time frame: 5 years
The record gives a start of May 2005, a primary completion of Dec 2028 and a completion of Dec 2028. It does not say whether these dates are actual or estimated.
Since we started tracking on Sep 25, 2026, the dates moved once, on Nov 10, 2026: primary completion Dec 2027 → Dec 2028 and completion Dec 2027 → Dec 2028.
Earlier changes are on the record history on ClinicalTrials.gov ↗
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
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Aortic Aneurysm, Thoracoabdominal →