New study aims to find safer bypass method for major aortic surgery
NCT ID NCT07518251
First seen Jun 27, 2026 · Last updated Jul 02, 2026 · Updated 2 times
Summary
This study compares two ways to keep blood flowing during open surgery for a large aneurysm in the chest and belly. About 236 adults will be randomly assigned to one of two heart-lung machine techniques. Researchers will track serious complications like death, stroke, kidney failure, and spinal cord injury over one year to see which method is safer.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 236 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2026
- Expected to finish
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Aug 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Computed tomography angiography (CTA) confirmed as ATAAD according to the 2022 ACC/AHA Guideline for the Diagnosis and Management of Aortic Disease; 2. Adult patients (≥18 years old); 3. Indications for TAAAR are available and requiring cardiopulmonary bypass; 4. Signed informed consent and availability for follow-up. Exclusion Criteria: 1. History of chronic renal failure, chronic heart failure, Coronary heart disease with established surgical indications, hepatocirrhosis, and hepatic insufficiency; 2. History of severe cerebral infarction (with cerebral infarction sequels); 3. Inflammatory aortic diseases, such as Takayasu arteritis and Behçet's disease, etc; 4. History of infectious aortic diseases; 5. History of malignancy or previous radiotherapy; 6. Pregnant or feeding women, or anyone planning to reproduce during the test period; 7. Participating in any other clinical trial; 8. Having other causes not eligible for operation.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Beijing Anzhen Hospital
RECRUITINGBeijing, Beijing Municipality, 100013, China
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a blood filter tame the inflammatory storm after pediatric heart surgery?
- Can a tailored stent graft tame complex aortic aneurysms?
- Calcium timing during bypass may cut need for heart drugs
- A simple gas flush before aortic repair might prevent strokes
- Double nerve block may ease pain and speed recovery after heart surgery