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Kids' nerve block study aims to pinpoint perfect needle placement

NCT ID NCT07348029

Knowledge-focused Sponsor: Istanbul University - Cerrahpasa 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at 50 children aged 1-18 having penile surgery to find the best place and depth for a pudendal nerve block. Doctors will measure how far from the anus and how deep the needle needs to go, and see if that relates to the child's age, height, and weight. The goal is to improve pain control after surgery by gathering this anatomical data.

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 50 people

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

Expected to start

Jan 2026

An estimate. Start dates often move.

Expected to finish

Jun 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.

Who is studied

This study includes children aged 1-18 years who are undergoing penile surgery. Neurostimulation-guided pudendal nerve block will be performed, and anatomical measurements, including the horizontal distance from the anus to the needle insertion point and the depth from the skin to the pudendal nerve, will be recorded. Measurements will be taken separately for the right and left sides. Patient age, height, and weight will also be recorded, and their relationship with the anatomical measurements will be analyzed. The study will be conducted at Istanbul University-Cerrahpasa, Department of Pediatric Surgery.

Ages

1 year to 18 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: * Children aged 1-18 years * Scheduled for penile surgery (e.g., hypospadias, phimosis) * Planned to receive neurostimulation-guided pudendal nerve block * Patient and parents/legal guardians willing to participate under general anesthesia Exclusion Criteria: * Patients with incomplete measurement data * Cases where successful nerve block cannot be performed or nerve stimulation is not detectable at currents ≥1.5 mA * Patients or parents/legal guardians who refuse pudendal nerve block * Patients with pelvic deformities or neuromuscular disorders

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Conditions

The condition(s) this trial relates to.

hypospadias phimosis

As listed by the trial registrant

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

Penile surgery-related pain Postoperative pain management

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 Medicine of Faculty

    Bakırköy, Istanbul, 34153, Turkey (Türkiye)

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Other studies related to the condition(s) this trial covers.