Does a curved blade make breathing tube placement safer?
NCT ID NCT07600502
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at two different shapes of a device called a laryngoscope, which doctors use to place a breathing tube when a patient is under anesthesia. The newer shape, called the McGrath X-blade, matches the curve of the tongue better than the traditional shape. Researchers want to see if using the X-blade in all patients helps place the tube successfully on the first try. About 500 adults having surgery will take part.
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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 500 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jun 2026
An estimate. Start dates often move.
- Expected to finish
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Sep 2027
An estimate. End dates often move.
- Lead sponsor
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A government agency
The lead sponsor is a government body.
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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Accepted
You do not need to have the condition being studied to take part.
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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: * Adult patients undergoing surgical procedures requiring tracheal intubation as part of their routine anaesthetic care * Patients undergoing either naso- or oro-tracheal intubation * Patients undergoing tracheal intubation with or without administration of neuromuscular blocking agents (e.g. those undergoing surgery where facial nerve or recurrent laryngeal nerve monitoring will be utilised) Exclusion Criteria: * Patients \<18 years of age * Patients in whom tracheal intubation is not required as part of their routine anaesthetic care * Patients in whom tracheal intubation was not planned as part of their routine anaesthetic care, but was required as a rescue technique (e.g. for failed insertion of a supraglottic airway) since appropriate patient consent will not have been obtained · Patients that are physiologically unstable (where clinical care must take priority and/or patient is unable to consent for inclusion in the study)
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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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St John's Hospital
Livingston, United Kingdom
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