New cocktail could keep knee surgery patients Pain-Free longer
NCT ID NCT07522736
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether adding dexmedetomidine to standard spinal anesthesia can extend pain relief after knee surgery. Researchers will compare three different doses of dexmedetomidine in 120 men undergoing knee orthopedic surgery. The main goal is to see how long it takes before patients need additional pain medication.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- dexmedetomidine
- What this could lead to
- If it works, this could give patients longer pain relief after knee surgery, reducing the need for strong painkillers like morphine.
- What could go wrong
- This is a small, early dose-finding study, so results may not apply to everyone. There is also a risk of side effects like slow heart rate or low blood pressure.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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 120 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2025
- Expected to finish
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Aug 2026
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 65 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.
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: * Age from 18 to 65 years. * American Society of Anesthesiologists (ASA) physical status I-II. * Male patients scheduled for knee orthopedic surgery. Exclusion Criteria: * Patients with psychiatric disorders. * History of drug addiction. * Contraindication for regional anesthesia. * History of hypersensitivity to the study drugs. * Previous administration of opioids and/or other central nervous system depressants during current hospital admission.
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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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Cairo University
RECRUITINGCairo, 12613, Egypt
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- Could a lower dose of spinal anesthetic protect elderly patients during surgery?
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