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New drug combo may speed up pain relief for leg surgery patients

NCT ID NCT07550348

Symptom relief Sponsor: Ataturk University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 compares two numbing drug recipes for a nerve block given before leg surgery. One group gets a mix of lidocaine and bupivacaine, while the other gets bupivacaine alone. Researchers want to see which combination works faster and provides better pain control after the operation. Sixty adults having elective lower leg surgery will take part.

What this could mean

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

Active substance
lidocaine and bupivacaine (local anesthetics)
What this could lead to
If it works, this could lead to faster-acting nerve blocks for leg surgery, reducing pain and the need for strong painkillers after the operation.
What could go wrong
This is a small, early-phase trial with only 60 participants, so results may not apply to everyone. The drug combination might not be significantly better than the standard approach.

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.

Started

Dec 2025

Expected to finish

Mar 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 to 65 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: * Age between 18 and 65 years * American Society of Anesthesiologists (ASA) physical status classification I, II, or III * Scheduled for elective distal lower extremity surgery (below-knee) * Body mass index (BMI) between 18 and 35 kg/m² * Provision of written informed consent Exclusion Criteria: * Refusal to participate in the study * Morbid obesity (BMI ≥35 kg/m²) * Known allergy or hypersensitivity to any local anesthetic agent * Severe cardiac, hepatic, or renal disease * Pre-existing neurological deficits or peripheral neuropathy * Use of anticoagulant therapy * History of prior surgery or significant scar tissue in the popliteal fossa * Pregnancy * Chronic opioid use at home

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Conditions

The condition(s) this trial relates to.

neuralgia Pain, Postoperative

As listed by the trial registrant

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

Lower extremity Nerve block Pain, nerve Pain, postoperative

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

  • Ataturk University

    RECRUITING

    Erzurum, Turkey (Türkiye)

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