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Validation of a Pharmacokinetic Pharmacodynamic Model to Administer Propofol in Obese Patients

NCT01596387 · Status: COMPLETED · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2012-05-11

No results posted yet for this study

Summary

The purpose of this study is to validate an integrated pharmacokinetic-pharmacodynamic model to administer propofol in obese patients.

Our hypothesis is that pharmacokinetic and pharmacodynamic changes occur with increasing weight and that mathematical models to administer drugs in obese patients can be developed to accurately predict dose schemes in this population.

Conditions

Interventions

DRUG

Propofol

General anesthesia will be induced administering propofol by effect site TCI system using our previously derived model, the target plasma concentration initially will be set at 4 mcg/ml. After loss of consciousness, rocuronium 0.6mg/kg, and remifentanil 0.2mcg/kg/min will be given to facilitate tracheal intubation. After intubation propofol target will be decreased to 3 for 10 minutes and then adapted to the needs of each patient to maintain stable BIS values between 40 and 50. At the end of surgery propofol infusion will be stopped, and patients will be transferred to the recovery unit extubated. Samples of 2.5 ml of arterial blood will be taken at 2, 5 and 10 min after every new target is set. Thereafter samples will be taken at 2, 5, 10, 15, 30, 60, 120 min after stopping drug infusion. Blood samples will be immediately centrifuged and then stored until analysis.

Sponsors & Collaborators

  • Pontificia Universidad Catolica de Chile

    lead OTHER

Principal Investigators

  • Luis I Cortínez, MD · Departamento de Anestesiología, Hospital Clínico Pontificia Universidad Católica de Chile

Study Design

Allocation
NA
Purpose
SUPPORTIVE_CARE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2012-03-31
Primary Completion
2012-04-30
Completion
2012-05-31

Countries

  • Chile

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01596387 on ClinicalTrials.gov