Competition With Striatal [11C]ORM-13070 Binding by Atipamezole and Endogenous Noradrenaline (AIMI)

February 15, 2013 updated by: Juha Rinne, University of Turku

Competition With Striatal [11C]ORM-13070 Binding by Atipamezole and Endogenous Noradrenaline - a PET Study in Healthy Human Subjects

The purpose of this study is to validate [11C]ORM-13070 as an alpha2C-adrenoceptor imaging agent for human positron emission tomography (PET) studies of brain alpha2C-adrenoceptor occupancy.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
10

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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

  • Finland
      • Turku, Finland, 20520
        • University of Turku, Clinical Research Services Turku CRST
      • Turku, Finland, 20520
        • University of Turku, Turku PET Centre

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

20 years to 40 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Written informed consent (IC) obtained.
  • Good general health ascertained by detailed medical history, laboratory investigations and physical examination.
  • Males between 20 and 40 years of age (inclusive).
  • Body mass index (BMI) between 18-28 kg/m2 inclusive (BMI = weight/height2).
  • Weight 60-100 kg (inclusive).

Exclusion Criteria:

  • Suspected poor compliance with the protocol or inability to communicate well with the study personnel.
  • Veins unsuitable for repeated venipuncture.
  • CYP2D6 slow metabolizer or ultrarapid metabolizer genotype.
  • Evidence of clinically significant cardiovascular, renal, hepatic, haematological, gastrointestinal, pulmonary, metabolic-endocrine, neurological, urogenital or psychiatric disease as judged by the investigator.
  • Any condition requiring regular concomitant medication including herbal products or likely to need any concomitant medication during the study.
  • Susceptibility to severe allergic reactions.
  • Intake of any medication that could affect the outcome of the study, within 2 weeks prior to the tracer administration (2 months for enzyme inducing drugs like rifampicin or carbamazepine), or less than 5 times the half-life of the medication.
  • Regular consumption of more than 21 units of alcohol per week (1 unit = 4 cl spirits, about 13 g of alcohol).
  • Current use of nicotine-containing products more than 5 cigarettes or equivalent/day.
  • Inability to refrain from using nicotine-containing products during the stay at the study centre.
  • Inability to refrain from consuming caffeine-containing beverages during the stay at the study centre, e.g. propensity for headache when refraining from caffeine-containing beverages.
  • Blood donation or loss of significant amount of blood within 2 months prior to the screening visit.
  • Abnormal 12-lead electrocardiogram (ECG) finding of clinical relevance after 10 minutes rest in supine position at the screening visit, for example:
  • QTc (calculated using Bazett's formula) > 450 msec,
  • PR < 120 msec or > 210 msec,
  • QRS < 70 msec or > 120 msec.
  • Heart rate (HR) < 40 beats/minute or > 90 beats/minute after 10 minutes rest in supine position at the screening visit.
  • At the screening visit, systolic blood pressure (BP) < 90 mmHg or > 140 mmHg after 10 minutes in supine position, diastolic BP < 50 mmHg or > 90 mmHg after 10 minutes in supine position.
  • Any abnormal laboratory value, vital sign or physical examination result, which may in the opinion of the investigator interfere with the interpretation of the test results or cause a health risk to the subject if he takes part in the study.
  • History of drug abuse or positive result in drug abuse test.
  • Positive serology to human immunodeficiency virus antibodies (HIVAb), hepatitis B surface antigen (HBsAg) or hepatitis C virus antibodies (HCVAb).
  • Anatomical abnormality in brain MRI which may in the opinion of the investigator interfere with the interpretation of the PET results.
  • Any other condition that in the opinion of the investigator would interfere with the evaluation of the results or constitute a health risk to the subject.
  • Participation in another clinical drug study within 3 months prior to this study.
  • Participation in a prior PET study or other medical or occupational exposure to significant doses of ionizing radiation.
  • Any contraindication to MRI of the brain.

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

  • Primary Purpose: Basic Science
  • Allocation: Randomized
  • Interventional Model: Single Group Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Placebo
Drug: Placebo
A single dose of placebo (capsules) administered orally
Experimental: Ketamine
Drug: Ketamine
A single dose of ketamine (approximately 60 mg) administered as an intravenous infusion
Other Names:
  • Ketalar
Experimental: Atomoxetine
Drug: Atomoxetine
A single dose of 1.2 mg/kg of atomoxetine administered orally
Other Names:
  • Strattera
Experimental: Atipamezole
Drug: Atipamezole
Administration of a single dose of 5-150 micrograms of atipamezole as an intravenous infusion
Other Names:
  • ANTISEDAN VET
Experimental: Insulin-induced hypoglycemia
Drug: Insulin
Insulin administered as an intravenous infusion to induce hypoglycemia
Other Names:
  • Insulin Actrapid
Experimental: Cold pressor test
Other: Cold pressor test
30-45 min cold pressor test of the foot

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Receptor occupancy
Time Frame: 30 minutes
PET tracer (interventional drug) uptake in the brain is measured for 30 minutes by PET after various pharmacological and physiological pre-treatments.
30 minutes

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Turku

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Orion Corporation, Orion Pharma

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Juha Rinne, MD, PhD, University of Turku

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 1, 2011

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2012

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 1, 2012

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 14, 2011

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 15, 2011

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 16, 2011

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 18, 2013

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 15, 2013

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 3099002

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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