CompletedNot Applicable

Remifentanil Effect-site Prediction by Algometry

Spain100 participantsStarted 2017-03-01

Plain-language summary

This study validates the pharmacodynamic analgesic predictions (effect) given by Minto's remifentanil pharmacokinetic and dynamic model in conscious sedation. This standard model is based on the electroencephalogram (EEG) changes induced by this opioid as a proxy for describing the remifentanil analgesic effect, which might be only valid for high concentrations. Validation of the standard remifentanil model for low concentrations under sedation is needed for safer remifentanil administration.

Who can participate

Age range

18 Years – 80 Years

Sex

FEMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Female patients scheduled for benign gynaecological surgery * 18-80 years old * ASA I-III Exclusion Criteria: * Morbid obesity * Conduct disorder or anxiety-depressive syndrome * Chronic treatment with psychotropic drugs or opiates * Pregnancy * Alcohol abuse * Documented allergy to remifentanil or midazolam * Refusal to participate in the study

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Pressure pain threshold (PPT) Baseline

Timeframe: Baseline

Pressure pain threshold (PPT) 1.5 minutes

Timeframe: 1.5 minutes

Pressure pain threshold (PPT) 5 minutes

Timeframe: 5 minutes

Pressure pain threshold (PPT) 10 minutes

Timeframe: 10 minutes

Pressure pain threshold (PPT) 15 minutes

Timeframe: 15 minutes

Pressure pain threshold (PPT) 18 minutes

Timeframe: 18 minutes

Pressure pain threshold (PPT) 20 minutes

Timeframe: 20 minutes

Pressure pain threshold (PPT) 25 minutes

Timeframe: 25 minutes

Trial details

NCT IDNCT05115578

SponsorHospital Universitari Vall d'Hebron Research Institute

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2020-05-15

View on ClinicalTrials.gov More Conscious Sedation Failure During Procedure trials