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Two needle paths, one goal: blocking hemorrhoid surgery pain

NCT ID NCT07813338

Symptom relief Sponsor: Vinmec Healthcare System 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 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 10, 2026 · Last updated Sep 11, 2026 · Updated 1 time

Summary

Hemorrhoidectomy often causes severe pain, and doctors use pudendal nerve blocks to help. Researchers are testing whether a block placed higher up near the ischial spine works better than one placed lower near the perineum. Adults having elective hemorrhoid surgery receive one of the two ultrasound-guided blocks with ropivacaine. The trial measures opioid use over the first 48 hours and tracks pain, recovery, and complications.

What this could mean

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

Active substance
ropivacaine injected around the pudendal nerve using two different ultrasound-guided needle approaches
What this could lead to
If the proximal approach works better, it could give surgeons a more effective way to control pain after hemorrhoidectomy and cut down on opioid use during recovery.
What could go wrong
This is a single-center trial of 140 adults, so the results may not apply to all patients or hospitals. Nerve blocks can fail, cause temporary numbness, or carry small risks of bleeding or infection, and pain relief may not differ much between the two approaches.

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 140 people

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

Expected to start

Sep 2026

An estimate. Start dates often move.

Expected to finish

Sep 2027

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

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 aged 18 years or older. * Scheduled for elective hemorrhoidectomy. * Hemorrhoidectomy performed using either the Milligan-Morgan or Ferguson technique. * ASA Physical Status I-III. * Able to understand the study procedures and provide written informed consent. * Able to complete postoperative pain and quality-of-recovery assessments. Exclusion Criteria * Chronic opioid use exceeding 30 mg morphine milligram equivalents per day. * Known allergy or contraindication to local anesthetics. * Coagulopathy or other contraindication to peripheral nerve block. * Infection at the planned injection site. * Pregnancy. * Cognitive impairment preventing reliable completion of study questionnaires or pain assessments.

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Conditions

The condition(s) this trial relates to.

hemorrhoid Pain, Postoperative

As listed by the trial registrant

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

Hemorrhoids Postoperative pain

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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