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Opioid-Free anesthesia for kidney stone surgery shows promise in new trial

NCT ID NCT07636070

Symptom relief Sponsor: murat sahin 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a combination of two drugs, dexmedetomidine and ketamine, can replace opioids for pain control during kidney stone surgery. Sixty adults undergoing the procedure will receive either the opioid-free combo or standard fentanyl-based anesthesia. Researchers will measure pain levels and how much extra pain medication is needed after surgery, aiming to find a safer alternative to opioids.

What this could mean

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

Active substance
Dexmedetomidine and ketamine combination
What this could lead to
If successful, this could offer a safer, opioid-free pain management option for kidney stone surgery, reducing reliance on opioids and their side effects.
What could go wrong
This is a small, early-stage trial with only 60 participants, so results may not apply to everyone. The new approach might not control pain as well as standard opioids.

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

Jun 2026

An estimate. Start dates often move.

Expected to finish

Aug 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

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: Aged 18 to 65 years ASA physical status I or II ASA III patients with controlled and stable systemic disease (e.g., well-controlled hypertension or type 2 diabetes without end-organ damage) Scheduled for elective retrograde intrarenal surgery (RIRS) under laryngeal mask airway (LMA) Ability to provide written informed consent Exclusion Criteria: BMI greater than 40 kg/m² Chronic opioid use Severe cardiovascular disease (uncontrolled arrhythmia, unstable angina, or ejection fraction below 40%) Significant respiratory disease (FEV1 below 60% predicted or oxygen-dependent COPD) Neuropsychiatric disorders Pregnancy Known allergy to any study drug Anticipated difficult airway (Mallampati III-IV, mouth opening less than 3 cm, or thyromental distance less than 6 cm) Requirement for conversion from LMA to endotracheal intubation Emergency cases Withdrawal of informed consent

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Conditions

The condition(s) this trial relates to.

Kidney Calculi nephrolithiasis Pain, Postoperative

As listed by the trial registrant

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

Kidney stone Postoperative pain Retrograde intrarenal surgery (RIRS)

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

  • Mus State Hospital

    Muş, Muş, 49100, Turkey (Türkiye)

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