New nerve block may cut opioid use after gallbladder surgery
NCT ID NCT06768593
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This completed study tested whether an ultrasound-guided nerve block called RIFP can reduce pain and the need for rescue painkillers after laparoscopic gallbladder removal. 77 patients were enrolled. The block targets nerves in the upper abdomen to provide pain relief. The main goal was to see if it lowers opioid use in the first 24 hours after surgery.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- RIFP block (a nerve block using local anesthetic)
- What this could lead to
- If effective, this nerve block could become a standard way to manage pain after gallbladder surgery, reducing the need for strong painkillers.
- What could go wrong
- This is a small, completed trial with no phase designation, so results may not apply to all patients. The block may not significantly reduce pain or opioid use compared to standard care.
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
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77 people
The number who actually took part.
- Started
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Jan 2025
- Finished
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Oct 2025
- Lead sponsor
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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
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Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * American Society of Anesthesiologists (ASA) classification I-II patients * Laparoscopic cholecystectomy operation under general anesthesia Exclusion Criteria: patients with * with a history of bleeding diathesis * v receiving anticoagulant treatment, * with allergies or sensitivity to drugs used, * with an infection on the puncture site * with a history of alcohol or drug addiction, * with congestive heart failure * with liver or kidney disease * who do not accept the procedure or participate in the study
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Istanbul Medipol University Mega Hospital Complex
Istanbul, Bagcilar, 34212, Turkey (Türkiye)
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Other studies related to the condition(s) this trial covers.
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