No-Opioid anesthesia may ease stress of major aneurysm surgery
NCT ID NCT04894864
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study compares opioid-free anesthesia to standard opioid-based anesthesia in 40 adults undergoing open abdominal aortic aneurysm repair. The goal is to see if avoiding opioids reduces the body's stress response and inflammation during and after surgery. Researchers will measure blood markers and pain levels to determine if the opioid-free approach is safer and equally effective.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 40 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2020
- Expected to finish
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Sep 2027
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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40 to 85 years
- 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. Patient Consent 2. Age between 40 and 85 years old 3. Patients undergoing Elective Open Abdominal Aortic Infrarenal Aneurysm Repair Exclusion Criteria: 1. Immunocompromised patients 2. Patients with active infection 3. Reoperation on the aorta 4. Inflammatory bowel Disease 5. Malignancy 6. Chronic Inflammatory conditions (e.g. Rheymatoid arthritis, Psoriatic arthritis) 7. Chronic corticosteroid or immunosuppressive drug use 8. Intraoperative transfusion with \>2 units of packed Red Blood Cells
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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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University of Crete
RECRUITINGHeraklion, Crete, 71110, Greece
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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