A Study to Characterize Pharmacokinetics (PK) and Pharmacodynamics (PD) of LUSEDRA® Administered as Continuous Infusion or Bolus Compared With Continuous Infusion of Propofol Injectable Emulsion

Eisai Inc.20 enrolled

Overview

The purpose of this study is to explore the pharmacokinetics (PK) and pharmacodynamics (PD) of LUSEDRA® administered as a continuous infusion or bolus compared with continuous infusion of propofol injectable emulsion.

The study is designed to explore the pharmacokinetics (PK) and the pharmacokinetic/ pharmacodynamic (PK/PD) relationship between PK-Bispectral Index (BIS) and PK-Modified Observer's Assessment of Alertness/Sedation (MOAA/S) scores following administration of LUSEDRA, administered as a bolus or by continuous infusion, with that of propofol injectable emulsion administered by continuous infusion, using compartmental modeling. The clinical practice of sedation spans an entire continuum of sedation, only a portion of which is currently addressed by the currently approved dose which is intended to provide a moderate level of sedation. Another goal of the current study is to support potential follow-up indications for fospropofol disodium, such as prolonged sedation in the Intensive Care Unit (ICU) and induction and maintenance of general anesthesia, which require higher doses. If successful, the data from this study would allow a direct comparison of propofol doses, delivered as fospropofol disodium or as propofol injectable emulsion, that provide the same sedation effect and directly compare concentration-effect relations of propofol liberated from fospropofol disodium with that delivered as propofol. The doses and infusion times for fospropofol disodium and propofol in this study were selected based on simulation results using an established PK/PD model developed from historical data. Data collected in the current study will be used to further refine the existing PK/PD model. To enhance the robustness of that model, the study design includes changes in dose over the duration of sedation in the three treatment groups.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Monitored Anesthesia Care

Interventions

arm 1DRUG

Bolus Dose: two bolus doses of 15.0 mg/kg (first dose) and 8.0 mg/kg (second dose), 40 minutes apart. Continuous Infusion Dose: Total dose of 42.0 mg/kg administered over 3 hours at an infusion rate of 0.40 mg/kg/min for 1 hour, followed by 0.20 mg/kg/min for 1 hour, followed by 0.10 mg/kg/min for 1 hour.

LUSEDRADRUG

Mode of administration: intravenous (IV).Continuous Infusion Dose: Total dose of 42.0 mg/kg administered over 3 hours at an infusion rate of 0.40 mg/kg/min for 1 hour, followed by 0.20 mg/kg/min for 1 hour, followed by 0.10 mg/kg/min for 1 hour.

Propofol (arm 3)DRUG

Mode of administration: intravenous (IV). A loading dose administered at a constant infusion rate of 0.20 mg/kg/min (0.50 mL/kg/min) for 10 minutes, followed by a constant-rate 2-hour infusion at 0.10 mg/kg/min; total dose infused over 130 minutes is 14.0 mg/kg.

Eligibility

Sex: ALLHealthy volunteers:

Medical Language ↔ Plain English

Inclusion: * Nonsmoking male and female subjects, age \>/= 18 to \</= 45 years old at Screening. Exclusion: * Body mass index (BMI) \>/= 30 * Subjects who smoke or have used nicotine or nicotine-containing products within 18 months of Screening and throughout the study * Subjects with a known history of clinically significant drug or food allergies, including allergies to any ingredients in either medication (fospropofol disodium or propofol injectable emulsion) or presently experiencing significant seasonal allergy * Subjects who are allergic to eggs, egg products, soybeans, or soy products * Subjects having a past or current medical history of any respiratory illness including asthma or sleep apnea * Subjects with disorders of fat metabolism, or who are predisposed to fat embolism, or who have other conditions in which lipid emulsions must be used carefully * Subjects currently taking any medications including over-the-counter (OTC) medication (within 14 days prior to Baseline Period 1) with the exceptions of hormonal contraceptives and hormone replacement therapy, as long as the subject was on a stable dose of the same product for at least 12 weeks prior to dosing. * Use of 1.0% lidocaine \<1.0 mL for placement of all arterial lines is allowed.

Locations (1)

University of Utah

Salt Lake City Utah, Utah, United States

Outcomes

Primary Outcomes

Arterial plasma levels of fospropofol and propofol during each treatment:

Time frame: up to 480 minutes postdose

Secondary Outcomes

PD effect during each treatment measured by continuous BIS recordings

Time frame: up to 480 minutes postdose

PD effect during each treatment measured by sedation (MOAA/S) assessments

Time frame: up to 480 minutes postdose

Relationships between PK and PD of fospropofol and propofol will be explored using PK/PD modeling.

Time frame: up to 480 minutes postdose

Data from ClinicalTrials.gov

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