Thigh injection may stop blood pressure spike during surgery
NCT ID NCT04454203
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether injecting numbing medicine near the femoral artery can reverse high blood pressure caused by a tourniquet during ankle surgery. About 40 adults having total ankle replacement will be randomly assigned to receive the injection or a placebo. The goal is to see if this approach safely controls blood pressure during the procedure.
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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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Feb 2021
- Expected to finish
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Feb 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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18 to 75 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: Patients that will be included in the study are English speaking 18-75 year old ASA 1-3 patients undergoing total ankle arthroplasty. Exclusion Criteria: 1. ASA 4 or 5 2. Diagnosis of chronic pain 3. Daily chronic opioid use (over 3 months of continuous opioid use). 4. Inability to communicate pain scores or need for analgesia. 5. Infection at the site of block placement 6. Age under 18 years old or greater than 75 years old 7. Pregnant women (as determined by standard of care day-of surgery urine bHCG) 8. Intolerance/allergy to local anesthetics 9. Weight \<50 kg 10. Suspected, or known addiction to or abuse of illicit drug(s), prescription medicine(s), or alcohol within the past 2 years. 11. Uncontrolled anxiety, schizophrenia, or other psychiatric disorder that, in the opinion of the investigator, may interfere with study assessments or compliance. 12. Current or historical evidence of any clinically significant disease or condition that, in the opinion of the investigator, may increase the risk of surgery or complicate the subject's postoperative course
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Genom att skicka in godkänner du våra Användarvillkor
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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Duke University Hospital
RECRUITINGDurham, North Carolina, 27710, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- New triple nerve block may offer better pain relief after knee surgery
- Nerve block showdown: which technique offers better pain control after knee surgery?
- New needle angle may ease tourniquet pain in leg surgery
- Better ankle implant aims to last longer and reduce pain
- Knee surgery drug showdown: which calms blood pressure best?
- Numbing the nose vs. the face: which controls surgery blood pressure better?