Could the volume of numbing medicine change your pain after hernia surgery?
NCT ID NCT07579975
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how the volume of local anesthetic used in a nerve block affects pain after inguinal hernia repair. 70 adults scheduled for surgery will receive the same total drug dose but in different volumes. Researchers will measure how long pain relief lasts and how much extra pain medicine is needed, aiming to find the best approach for recovery.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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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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About 70 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Apr 2026
An estimate. Start dates often move.
- Expected to finish
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Nov 2026
An estimate. End dates often move.
- 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
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18 to 75 years
- Sex
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Anyone
- Healthy volunteers
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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: * Patients aged between 18 and 75 years * American Society of Anesthesiologists (ASA) physical status I, II, or III * Diagnosis of unilateral inguinal hernia * Scheduled for elective open inguinal hernia repair under spinal anesthesia Exclusion Criteria: * Age under 18 or over 75 years * ASA physical status IV or higher * Body mass index (BMI) greater than 35 kg/m² * Pregnancy or suspected pregnancy * Emergency surgery * Refusal to provide informed consent * Known or suspected coagulopathy * Local infection at the site of the nerve block * Known allergy to local anesthetics * History of chronic opioid use or substance abuse * Cognitive impairment or inability to cooperate with study procedures (e.g., inability to use the visual analog scale)
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As listed by the trial registrant
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How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
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