Early Clinical Evaluation of the Pharmacokinetics and Mechanism Based Pharmacodynamics of Haloperidol Using Positron Emission Tomography in Healthy Volunteers

July 10, 2013 updated by: Kyun-Seop Bae, Asan Medical Center
In the present study, the investigators will establish the clinical trial technology for early evaluation of drug characteristics in terms of pharmacokinetics and pharmacodynamics for haloperidol as a model drug, using positron emission tomography.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

  1. Study Design

    This study will consist of two parts. One is "biodistribution study of haloperidol" in 12 subjects, and the other is "receptor occupancy study of haloperidol" in 12 subjects. In the biodistribution study, 18F-haloperidol (10 mCi) will be injected intravenously two times into each of the 12 subjects (cross-over design). Whole body PET will be conducted after the first haloperidol injection and local brain PET after the 2nd haloperidol injection after the 7 day washout period.

    1.1 D2-receptor occupancy study Group Doses No. of subjects 1 0.5 mg 4 2 1 mg 4 3 3 mg 4

  2. Measurement 2.1 The D2 receptor Occupancy of haloperidol.
  3. Test schedule 3.1 Biodistribution study

    • Whole body PET (day 1)
    • Brain local PET (day 8) 3.2 Receptor occupancy study
    • Baseline PET before drug administration (day 1 0h), 6h (day 1 6h), 24h (day 2 0h), after the first haloperidol administration (day 1 0h), and 24 h (day 8), 72 h (day 10), and 168 h (day 14) after the last dosing of haloperidol (day 7 0h).
    • Drug administration from day 1 through day 7 every 24 hours PK blood sampling (6 ml, each) prior to the first haloperidol administration (day 1 0h) and 6h (1 day 6h), 24h (2 day 0h), 48 h (3 day 0h), 96 h (5 day 0h), 144 h (7 day 0h) and, 0.5, 1, 2, 4, 6, 8, 12, 24 h (8day 0h), 48h (9day 0h), 72h (10 day 0h) after taking the last oral dose of haloperidol
  4. Analytic Methods 4.1 Pharmacokinetics: Noncompartmental Analysis Using Winnonlin Compartment model using NONMEM VII 4.2 Pharmacodynamics in the brain: Emax or linear model using NONMEM VII

Study Type

Interventional

Enrollment (Actual)

12

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

19 years to 45 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Overtly healthy males as determined by medical history and physical examination
  • Age from 19 to 45 years
  • Weight ≥ 45 kg and within ± 20% of IBW
  • Clinical laboratory test results within normal reference range for the National Cancer Center, Hospital or results with minor deviations which are judged to be not clinically significant by the investigator
  • Normal blood pressure and heart rate (supine and standing) as determined by the investigator
  • Are reliable and willing to make themselves available for the duration of the study, and who will abide by the study restrictions
  • Have given written informed consent

Exclusion Criteria:

  • History or presence of cardiovascular, respiratory, hepatic, renal, gastrointestinal, neurological disorders capable of altering the absorption, metabolism or elimination of drugs, or of constituting a risk factor when taking the study medication
  • An episode of febrile disease or infectious disease within the past 2 weeks
  • Evidence of significant active hematologic disease and/or blood donation in the last 2 months
  • Evidence of significant active neuropsychiatric disease
  • Regular use of drugs or abuse
  • History of drug hypersensitivity or clinically significant allergic reactions of any origin
  • Participation in a study involving administration of an investigational compound within the past 30 days
  • Have a regular alcohol intake greater than 21 units/week or subjects unwilling to stop alcohol for the duration of the study periods
  • Intend to use concomitant drug therapy, including non prescription medication on a regular basis apart from vitamin/mineral supplements
  • Smoking history for recent 3 months
  • Use of medication within 7 days prior to the study. If this situation arises inclusion of an otherwise suitable volunteer may be at the discretion of the investigator

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: haloperidol

0.5, 1, 3 mg of haloperidol will be administered orally every 24 hours for 7 days to 4 healthy subjects in each dose level (a total of 12 subjects).

Dose groups are as follows; D2-receptor occupancy study Group Single Oral Dose No. of subjects

  1. 0.5 mg 4
  2. 1 mg 4
  3. 5 mg 4
  1. Biodistribution study Intravenous 18F haloperidol(10 mCi) Dose injection two times before whole body PET scan
  2. D2-receptor occupancy study Group Doses No. of subjects 1 0.5 mg 4 2 1 mg 4 3 3 mg 4

above doses will be administrated orally every 24 hours for 7 days.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
plasma haloperidol concentration
Time Frame: day 1 0h (predose), day 1 6h, day 2 0h, day 3 0h (predose), day 5 0h (predose), and day 7 0h (predose), 0.5, 1, 2, 4, 6, 8, 12, 24(day 8 0h), 48(day 9 0h), 72h (day 10h)
day 1 0h (predose), day 1 6h, day 2 0h, day 3 0h (predose), day 5 0h (predose), and day 7 0h (predose), 0.5, 1, 2, 4, 6, 8, 12, 24(day 8 0h), 48(day 9 0h), 72h (day 10h)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2008

Primary Completion (Actual)

July 1, 2010

Study Completion (Actual)

January 1, 2012

Study Registration Dates

First Submitted

September 1, 2010

First Submitted That Met QC Criteria

September 1, 2010

First Posted (Estimate)

September 2, 2010

Study Record Updates

Last Update Posted (Estimate)

July 11, 2013

Last Update Submitted That Met QC Criteria

July 10, 2013

Last Verified

July 1, 2013

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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