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Attention-Deficit/Hyperactivity DisorderPhase 4NCT01156051

Effect of Guanfacine Extended-Release on Attention Deficit Hyperactivity Disorder (ADHD)-Associated Insomnia

A Phase 4 study testing Guanfacine extended-release tablets in people with Attention-Deficit/Hyperactivity Disorder and Attention Deficit Disorder, run by Children's Specialized Hospital at 2 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This study seeks to determine, using special sleep tests (polysomnography and actigraphy) if guanfacine extended release is able to improve nighttime sleep in children with ADHD - associated insomnia while improving daytime ADHD symptoms. Read more about this study

Who is it for?
Ages 6 to 12 years
What is being tested?
Guanfacine extended-release tablets
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
29 participants
Where
2 sitesUnited States
Study dates
Jun 2010to Feb 2012
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 6 to 12 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Subject must be male or female, aged 6 - 12 years with ADHD.
  • Subject must (a) be taking methylphenidate, amphetamine, or atomoxetine for treatment of ADHD with parent or subject concerns of inadequate efficacy or intolerable side effects, or (b) free of any other medication used to treat ADHD for at least 30 days at the time of the initial sleep study.
  • Subject must have repeated difficulty with sleep initiation or persistence despite attempts at adequate sleep hygiene.
  • Subject must be able to swallow tablets.

Who cannot join

  • Subject or parent/LAR is unable or unwilling to discontinue present medications used to treat ADHD.
  • Subject has a body mass index < 5th percentile for age, using the Centers for Disease Control standards reported in 2000.
  • Subject has a body weight > 176 pounds.
  • Subject has a diagnosis of Autism or Autism Spectrum Disorder.
  • Subject has other serious psychiatric diagnoses.
  • Subject has a medical condition that may require treatment with an unapproved medication, that may cause a safety concern, or that may confound outcome results
  • Subject has an excessive caffeine intake (greater than 2.5 mg/kg/d).
  • Subject has a prior problem with clonidine or guanfacine.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Children's Specialized Hospital

    Hamilton, New Jersey, 08619

  • Children's Specialized Hospital

    Toms River, New Jersey, 08755

Other trials in United States

About this study

This study seeks to determine, using special sleep tests (polysomnography and actigraphy) if guanfacine extended release is able to improve nighttime sleep in children with ADHD - associated insomnia while improving daytime ADHD symptoms. Male and female children with diagnosed or suspected ADHD with sleep problems (difficulty falling asleep, difficulty staying asleep, or less than expected hours of sleep) will be recruited. After obtaining informed consent and assent (when appropriate) and after discontinuation of excluded medications, children will have evaluations of his or her sleep and evaluations confirming the ADHD diagnosis. Children who successfully pass screening will be enrolled into the double-blind, placebo-controlled, randomized investigation with 50% of participants receiving guanfacine extended release and 50% of participants receiving matching placebo. Using a flexible-dose optimization design based on ADHD symptom improvement and medication tolerability, the dose will be adjusted between 1 to 4 mg over the course of four weeks. At the end of medication adjustment (week 4 or 5), ADHD questionnaires, sleep questionnaires, and sleep tests will be repeated and analyzed. The medication will be weaned over the course of the following 3-10 days.

Being tested
Guanfacine extended-release tablets, Placebo comparator
Keywords
ADHD, ADD, sleep disturbance
Medical subject headings
Attention Deficit Disorder with Hyperactivity, Sleep Initiation and Maintenance Disorders, Sleep Wake Disorders, Parasomnias

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Guanfacine extended-release tabletsDrug

    Also called Intuniv (TM), guanfacine HCl, SPD503

    Guanfacine extended-release tablets will be started at 1mg and then increased at weekly intervals to 2mg, 3mg, or 4mg as needed and as tolerated

  • Placebo comparatorDrug

    Also called "sugar pill"

    Placebo tablets identical to the experimental arm guanfacine extended-release tablets 1mg, 2mg, 3mg, 4mg, but without the active ingredient (guanfacine).

Study groups in NCT01156051
Study groupRoleWhat they receive
Guanfacine Extended-Release TabletsExperimentalGuanfacine Extended-Release Tablets 1mg, 2mg, 3mg, and 4mg
Receives: Drug: Guanfacine extended-release tablets
Placebo comparatorPlacebo comparatorPlacebo control
Receives: Drug: Placebo comparator

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in Polysomnographic Total Sleep Time (TST)

    Change in objective measures of sleep, using polysomnography

    Measured: Baseline to last observation carried forward (after at least one week of dose stability)

Secondary outcomes (3)
  1. Change in Baseline to Treatment ADHD-Rating Scale IV Total Score

    Change in baseline to treatment ADHD-Rating Scale IV (Investigator-interview ) total. This scale quantitates ADHD symptoms based on DSM-IV criteria with a minimum score of 0 and a maximum score of 54 (higher scores suggesting more ADHD symptoms). The total score is a sum of the 9 items on the ADHD Rating Scale IV inattention score and the 9 items on the ADHD Rating Scale IV hyperactivity-impulsivity score (scores for each 0-27).

    Measured: Baseline to last observation carried forward (after at least one week of dose stability)

  2. Change in Baseline to Treatment Latency to Persistent Sleep (LPS)

    Change in an objective measure of sleep onset, using polysomnography.

    Measured: Baseline to last observation carried forward (after at least one week of dose stability)

  3. Change in Baseline to Treatment Minutes of Wake Time After Sleep Onset (WASO)

    Polysomnographic parameter of sleep assessing how many minutes of wakefulness occurred after sleep onset and before full morning awakening.

    Measured: Baseline to last observation carried forward (after at least one week of dose stability)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Jul 2010 (estimated)
  2. Study startJun 2010
  3. Primary completionFeb 2012
  4. Study completionFeb 2012

Why it stopped: extended beyond completion date; chose to close out rather than renew IRB review

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
29 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01156051
Sponsor's protocol ID
CSHTR-TR-0901
Status last verified
Jul 2014
First submitted
1 Jul 2010
Last updated
11 Aug 2014
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Guanfacine extended-release tablets in people with Attention-Deficit/Hyperactivity Disorder and Attention Deficit Disorder, run by Children's Specialized Hospital at 2 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 11 Aug 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 11 Aug 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in Polysomnographic Total Sleep Time (TST) (time frame: Baseline to last observation carried forward (after at least one week of dose stability)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Aug 2014.

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