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AI could forecast spinal block duration, study tests

NCT ID NCT07816003

Knowledge-focused Sponsor: Specialized Medical Center (SMC) Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 11, 2026 · Last updated Sep 16, 2026 · Updated 3 times

Summary

Spinal anesthesia wears off at different speeds in different people, even when they get the same dose. Researchers are building machine learning models to predict how long sensory and motor blocks will last in adults having elective surgery. The study will record body measurements and clinical details before surgery, then track block regression afterward. The goal is a practical tool to help anesthesiologists plan cases and discharges.

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 the models work, anesthesiologists could estimate how long a spinal block will last for each patient, which may help with scheduling surgeries and planning discharge.
What could go wrong
This is an observational study that only builds and tests prediction models on a single group of patients. The models may not work well in other hospitals or patient groups, and they cannot replace clinical judgment.

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

About 255 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Dec 2026

An estimate. Start dates often move.

Expected to finish

Sep 2028

An estimate. End dates often move.

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

Consecutive adults scheduled for elective surgery under single-shot spinal anaesthesia at Specialized Medical Center, King Fahad campus, Riyadh.

Ages

18 years and older

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: * Adults scheduled for elective surgery under single-shot spinal anaesthesia * ASA physical status I to III * Written informed consent obtained Exclusion Criteria: * Contraindication to neuraxial anaesthesia (coagulopathy, local or systemic infection, raised intracranial pressure, patient refusal) * Failed or incomplete block requiring conversion to general anaesthesia * Repeated or top-up intrathecal injection * Pregnancy * Known spinal deformity or previous spine surgery * Pre-existing neurological or neuromuscular disease affecting sensory or motor assessment * Inability to cooperate with sensory and motor assessment

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As listed by the trial registrant

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

Anesthesia recovery period Anesthesia, spinal Nerve block

How to take part

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  1. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  2. A doctor treating you

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