Single-dose Novel Selective alpha2c Antagonist Pharmaco-MRI Study in Healthy Volunteers (SNAP_MRI)

January 9, 2019 updated by: Prof. Dan J. Stein, University of Cape Town

The Effects of Single-dose Administration of a Novel Selective alpha2c Antagonist on Emotional and Cognitive Processing in Healthy Volunteers: an fMRI Investigation

The aim of the present study is to investigate changes in neural activity (BOLD signal), as measured using fMRI, in brain areas associated with emotional and working memory during task performance after single-dose administration of a novel selective alpha2c adrenoceptor antagonist (ORM-12741) in healthy volunteers. Further, it will be explored whether ORM-12741 affects connectivity between brain areas in rest, as measured using fMRI, and cognitive performance in the sample under investigation.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

68

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

    • Western Cape
      • Cape Town, Western Cape, South Africa, 7925
        • UCT Dept. Psychiatry & Mental Health / CUBIC

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

18 years to 30 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • good command of English language
  • right handedness
  • normal or corrected-to-normal vision

Exclusion Criteria:

  • personal history or active presence of psychiatric conditions
  • usage of psychotropic medication within the past 3 months
  • pregnancy or breast-feeding status
  • systolic blood pressure < 90 mmHg or > 140 mmHg at screening visit
  • diastolic blood pressure < 50 mmHg or > 90 mmHg at screening visit
  • resting heart rate < 45 beats/minute or > 100 beats/minute at screening visit
  • active presence of medical condition at physical examination
  • history of major traumatic brain injury
  • any other contraindication to MRI of the brain
  • use of psychoactive substances incl. alcohol in 24 hours prior to test session

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: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: High-dosage (60mg) ORM-12741
6 x 10 mg ORM-12741 immediate release capsules in a single dose
Novel selective alpha2c adrenoceptor antagonist
Experimental: Low-dosage (10mg) ORM-12741
1 x 10 mg ORM-12741 immediate release capsules and 5 x placebo capsules in a single dose
Novel selective alpha2c adrenoceptor antagonist
Placebo Comparator: Placebo
6 x placebo capsules in a single dose
Identical in appearance to experimental drug, not psycho-active

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Effect of ORM-12741 on BOLD signal in fMRI of the brain areas associated with emotional memory
Time Frame: 1-1.5 hours post medication intake
1-1.5 hours post medication intake
Effect of ORM-12741 on BOLD signal in fMRI of the brain areas associated with working memory
Time Frame: 1-1.5 hours post medication intake
1-1.5 hours post medication intake

Secondary Outcome Measures

Outcome Measure
Time Frame
Effect of ORM-12741 on connectivity measures between brain areas as measured with BOLD signal in fMRI obtained in a resting state
Time Frame: 1.5-2 hours post medication intake
1.5-2 hours post medication intake
Effect of ORM-12741 on memory task performance (as measured by accuracy and response latency)
Time Frame: 1-3 hours post medication intake
1-3 hours post medication intake

Collaborators and Investigators

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

Sponsor

Collaborators

Investigators

  • Principal Investigator: Dan J. Stein, MD, PhD, University of Cape Town

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 (Actual)

March 26, 2018

Primary Completion (Actual)

December 5, 2018

Study Completion (Actual)

December 6, 2018

Study Registration Dates

First Submitted

February 13, 2018

First Submitted That Met QC Criteria

February 13, 2018

First Posted (Actual)

February 20, 2018

Study Record Updates

Last Update Posted (Actual)

January 10, 2019

Last Update Submitted That Met QC Criteria

January 9, 2019

Last Verified

January 1, 2019

More Information

Terms related to this study

Other Study ID Numbers

  • 069/2017
  • N2/19/8/2 (Other Identifier: MCC South Africa)
  • DOH-27-0218-5843 (Registry Identifier: SANCTR)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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