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Study reveals clues to chronic pain after kidney surgery

NCT ID NCT06673979

Knowledge-focused Sponsor: Istanbul University - Cerrahpasa 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 completed study looked at 204 patients who had a kidney removed (nephrectomy) to find out what factors might lead to chronic pain lasting months or years after surgery. Researchers measured pain levels at 1 hour, 3 months, and 1 year after the operation using a simple 0-to-10 pain scale. The goal was to identify high-risk patients and understand how things like age, smoking, and painkiller use affect long-term pain.

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

204 people

The number who actually took part.

Started

Aug 2025

Finished

Mar 2026

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

Patients aged 18-90 years, ASA I-IV, undergoing elective nephrectomy under general anesthesia will be included in the study.

Ages

18 to 90 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: -Patients aged 18-90 years, * ASA I-IV, * undergoing elective nephrectomy under general anesthesia will be included in the study. Exclusion Criteria: * Patients who cannot be reached by phone and hose who die within the 1-year postoperative period will be excluded from the study.

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Conditions

The condition(s) this trial relates to.

Acute Pain Chronic Pain chronic pain syndrome Pain, Postoperative

As listed by the trial registrant

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

Acute pain, postoperative Analgesic drugs Anesthesia Chronic pain Chronic pain, postoperative Epidural analgesia General anesthesia Nephrectomy Surgery

Contacts and locations

Locations

  • Istanbul University-Cerrahpasa

    Istanbul, Turkey (Türkiye)

More trials for these conditions

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