Age matters: study aims to tailor lidocaine dosing for seniors
NCT ID NCT06795100
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at how the body processes lidocaine, a common painkiller, in young (under 40) and elderly (over 70) patients during surgery. The goal was to find the best dose for older adults to manage pain safely while avoiding side effects. 67 participants were monitored to measure drug levels and clearance rates.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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67 people
The number who actually took part.
- Started
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Apr 2025
- Finished
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Feb 2026
- 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 years and older
- 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.
Show the full entry requirements Hide 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: CI1 - Adult participant (≤ 40 years old) and (≥ 70 years old). CI2 - Undergoing abdominal, digestive, hepatic, urological, or gynecological surgery with an expected duration \> 2 hours. CI3 - Covered by a social security plan. CI4 - Provided with both oral and written information about the protocol and has signed informed consent to participate in this research. Exclusion Criteria: NC1 - Allergy to lidocaine or any of its excipients. NC2 - Presence of comorbidities that may alter lidocaine pharmacokinetics, such as: * Heart failure (ejection fraction \< 45%). * Renal failure (creatinine clearance \< 15 ml/min). * Hepatic failure (prothrombin time \< 15%). * Body Mass Index (BMI) \> 30. NC3 - Long-term treatment with an antiarrhythmic drug. NC4 - Ongoing treatment with strong CYP 1A2 inhibitors (e.g., Ciprofloxacin, Fluvoxamine) and/or CYP 1A2 inducers (e.g., Carbamazepine, Modafinil, Ritonavir). NC5 - Use of peripheral or neuraxial regional anesthesia or local anesthetic infiltration. NC6 - Known pregnancy or ongoing breastfeeding. NC7 - Adult under legal protection (e.g., judicial safeguard, guardianship, or tutelage) or deprived of liberty. NC8 - Participation in another interventional study. EXCLUSION CRITERIA EC1 - Any eligibility criterion that is no longer met between the signing of consent and the day of surgery. EC2 - Participant with no blood sample for pharmacokinetics
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Genom att skicka in godkänner du våra Användarvillkor
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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CHU de Rennes - Hôpital Pontchaillou
Rennes, CHU de Rennes, 35033, France
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CHU de Rennes - Hôpital Sud
Rennes, 35000, France
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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