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Ultrasound tailors anesthesia dose to spinal canal size, aiming to prevent dangerous blood pressure dips

NCT ID NCT07794852

Disease control Sponsor: Istanbul University Source: ClinicalTrials.gov ↗

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 31, 2026 · Last updated Sep 01, 2026 · Updated 1 time

Summary

This trial tests whether measuring the spinal canal with ultrasound before surgery can help doctors give the right amount of spinal anesthesia. The study includes men aged 40 and older having prostate surgery. Half receive a dose based on their individual spinal canal size, while the other half gets a standard fixed dose. The goal is to see if the personalized approach reduces sudden drops in blood pressure during the operation while still providing effective pain relief.

What this could mean

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

Active substance
Individualized spinal anesthesia dosing guided by ultrasound measurement of the dural sac, using bupivacaine
What this could lead to
If it works, this approach could make spinal anesthesia safer and more stable for prostate surgery, reducing dangerous blood pressure drops.
What could go wrong
This is a small, early-stage trial with 60 participants, so results may not apply broadly. Individualized dosing might not improve outcomes and could still carry risks like low blood pressure or allergic reactions.

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

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

About 60 people

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

Expected to start

Aug 2026

An estimate. Start dates often move.

Expected to finish

Dec 2026

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.

Ages

40 years and older

Sex

Male participants only

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: * Male participants aged 40 years or older * American Society of Anesthesiologists (ASA) physical status I-III * Scheduled to undergo transurethral resection of the prostate (TURP) for prostate cancer Exclusion Criteria: * Refusal of spinal anesthesia * Local infection or wound at the planned puncture site * Current anticoagulant therapy * Neurological disease, including multiple sclerosis, myelopathy, or peripheral neuropathy * Known allergy to any of the study medications * Inability to maintain the required position during ultrasound measurement or spinal puncture

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Conditions

The condition(s) this trial relates to.

prostate cancer

As listed by the trial registrant

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

Intraoperative hypotension Spinal aneshtesia Turp(transurethral resection of prostate)

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. 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 ↗

  3. 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

  • Istanbul University-Cerrahpasa, Cerrahpasa Faculty of Medicine

    Istanbul, 34360, Turkey (Türkiye)

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