Can a numbing spray make breathing tube insertion safer?
NCT ID NCT07154628
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study tests whether spraying lidocaine, a numbing medicine, on the vocal cords before placing a breathing tube can reduce pain and blood pressure spikes during robotic surgery. Eighty adults scheduled for robotic surgery will be randomly assigned to receive either lidocaine or a saltwater spray. The goal is to see if this simple step makes intubation smoother and more comfortable.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- lidocaine spray
- What this could lead to
- If it works, this could provide a simple way to reduce pain and stress during intubation for robotic surgery.
- What could go wrong
- This is a small, early-phase trial with only 80 participants, so results may not apply widely. Lidocaine can rarely cause allergic reactions or side effects.
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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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 80 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Sep 2025
An estimate. Start dates often move.
- Expected to finish
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Dec 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 to 69 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: * ASA classification I\~III * aged 18\~69 y/o * BMI 18\~35 kg/m2 * scheduled for elective robotic surgery under general anesthesia Exclusion Criteria: * Allergy or contraindication to lidocaine
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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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Kaohsiung Medical University Chung-Ho Memorial Hospital
Kaohsiung City, 807, Taiwan
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