Guanfacine in Children With Tic Disorders

August 11, 2021 updated by: Yale University

Guanfacine in Children With Tic Disorders: A Multi-site Study

The goal of this pilot study is to obtain preliminary information on the tolerability and efficacy of extended release guanfacine (trade name Intuniv) in children with Tourette Disorder (TD, also called Tourette syndrome).

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.

Detailed Description

Guanfacine is commonly used for the treatment of tics in children with Tourette Disorder, but neither the immediate release compound nor the new extended release formulation have been evaluated for tics as a primary outcome. This pilot study is not designed to demonstrate efficacy of extended release guanfacine in the treatment of tics in children with TD. Rather, the goal of this trial is to determine whether extended release guanfacine warrants further study in a large scale trial. Immediate-release guanfacine is frequently used in children with TD, but dosing, time to effect and adverse effects with the new extended release guanfacine are unknown. The use of placebo in this trial reduces bias in the measurement of outcomes because it ensures blindness in the parent and clinician ratings.

This is a three-site, investigator-initiated, randomized, double-blind, placebo-controlled, parallel-group study. Subjects who show a positive response to extended release guanfacine in the 8-week double-blind phase will continue on the the drug in an 8-week extension phase. Subjects who are randomly assigned to placebo and do not show improvement will be offered 8-weeks of open-label treatment with Intuniv.

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.
34

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 4

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

  • United States
    • Connecticut
      • New Haven, Connecticut, United States, 06510
        • Yale Child Study Center
    • Florida
      • Tampa, Florida, United States, 33612
        • University of South Florida
    • New York
      • New York, New York, United States, 10029
        • Mount Sinai School of Medicine

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

6 years to 17 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Diagnosis of Tourette Disorder or chronic motor or vocal tic disorder.
  • Between ages 6 yrs 0 mos and 17 years 0 months.
  • Weight >/= 15 kg (33 lbs).
  • Ability to swallow pills whole.

Exclusion Criteria:

  • IQ < 80.
  • Positive pregnancy test.
  • Positive drug test.
  • Low blood pressure.
  • Prior history of hypersensitivity to guanfacine.
  • Prior failed treatment with an adequate trial of guanfacine in last 2 years.
  • Concurrent treatment with another psychoactive medication for tics, stimulant medication, or Habit Reversal therapy.
  • Medication for OCD, anxiety or depression will be allowed if dose is stable for 8 wks with no planned changes; SSRIs are allowed.

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

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.
Placebo Comparator: Inactive placebo
Drug: placebo
Administered up to 8 weeks.
Experimental: Extended-release Guanfacine
Drug: extended-release guanfacine (Intuniv)
1 mg tablets; flexible dosing up to 4 mg/day for up to 16 weeks.
Other Names:
  • Intuniv

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
Yale Global Tic Severity Scale (YGTSS)
Time Frame: 8 weeks
The YGTSS is a clinician-rated scale that begins with a systematic inquiry of tic symptoms in the preceding week. Current motor and phonic tics are rated separately according to number, frequency, intensity, complexity, and interference, each rated on 0 to 5 scale with higher scores indicating greater severity/worse outcome (Leckman et al. 1989). The YGTSS yields a total motor score (0-25), a total phonic score (0-25), a total tic score (sum of total motor and total phonic scores; 0-50), and an impairment score (0-50). Higher scores indicate greater severity/worse outcome.
8 weeks

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.
Yale University

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.
University of South Florida
New York University
Icahn School of Medicine at Mount Sinai
Shire

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.
  • Study Director: Lawrence D Scahill, MSN, PhD, Emory University
  • Principal Investigator: Barbara J Coffey, MD, MS, Icahn School of Medicine at Mount Sinai
  • Principal Investigator: Tanya Murphy, MD, MS, University of South Florida
  • Principal Investigator: Thomas Fernandez, MD, Yale University

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.
April 1, 2012

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.
December 1, 2016

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.
December 1, 2016

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).
March 1, 2012

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.
March 6, 2012

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.
March 7, 2012

Study Record Updates

Last Update Posted (Actual)

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.
August 13, 2021

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.
August 11, 2021

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.
August 1, 2021

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.
  • 1004006635

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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