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Which monitor best measures muscle relaxation on the operating table?

NCT ID NCT05006807

Knowledge-focused Sponsor: University of Washington Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 08, 2026 · Last updated Jul 09, 2026 · Updated 1 time

Summary

This study compares several devices that measure how well muscle relaxant drugs are working during surgery. The devices track thumb twitches in response to nerve stimulation. Researchers want to see which monitor gives the most accurate readings compared to a lab-standard method. The study involves adults undergoing anesthesia that requires muscle relaxants.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If one device proves more accurate, it could improve how anesthesiologists monitor muscle relaxation during surgery, potentially leading to safer recovery.
What could go wrong
This is a small, early-stage comparison study, not a treatment trial. Results may not change clinical practice or apply to all surgical settings.

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.

Participants

51 people

The number who actually took part.

Started

Feb 2022

Finished

Dec 2024

Lead sponsor

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.

Who is studied

Patients 18 years of age or older undergoing anesthesia that requires neuromuscular blocking drugs at University of Washington Medical Center.

Ages

18 to 100 years

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. 18 years of age or greater 2. Undergoing anesthesia that requires neuromuscular blocking drugs Exclusion criteria: 1. Less than 18 years of age 2. Undergoing anesthesia that does not require neuromuscular blocking drugs 3. Undergoing a procedure in which access to one or both arms is limited 4. Anatomical abnormalities of the hands or arms that preclude twitch monitoring with ulnar nerve stimulation and evoked thumb twitch response

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Neuromuscular blockade

Contacts and locations

Locations

  • University of Washington Medical Center

    Seattle, Washington, 98195, United States

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