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Selective MutismPhase 2NCT05378711

Evaluating the Results of Physician and Parent Decisions to Treat Selective Mutism With Fluoxetine

A Phase 2 study testing Fluoxetine in people with Selective Mutism and Social Anxiety, run by Michigan State University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The Department of Counseling, Educational Psychology, and Special Education and the Department of Psychiatry at Michigan State University have coordinated efforts to provide a diagnostic and treatment investigation for children, ages seven to eighteen, with Selective Mutism. Read more about this study

Who is it for?
Ages 5 to 18 years
Conditions the study is for
Selective Mutism, Social Anxiety
What is being tested?
Fluoxetine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
6 participants
Where
1 siteUnited States
Study dates
1 Jan 2014to 30 May 2015
Phase
Phase 2
Are there results?
None posted in the registry

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 5 to 18 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Male or female from seven to seventeen years of age at their last birthday
  • Meet DSM-IV-TR criteria for selective mutism
  • No history of medication treatment for selective mutism
  • Child has an immediate biological family member who is diagnosed with an anxiety disorder or has experienced symptoms of an anxiety disorder at some point in time
  • Child has received 10 weeks of an evidence-based psychosocial treatment
  • Child has never had a negative reaction to a psychopharmacological medication
  • Child exhibits symptoms of social anxiety

Who cannot join

  • Child is diagnosed with a speech condition, mental retardation, pervasive developmental disorder, or schizophrenia
  • Child is an English language learner or from a different culture than the culture predominately represented within his or her school
  • Child is taking or has taken any kind of a psychopharmacological medication (e.g., SSRI, MAO-I, stimulant, etc.)
  • Child has a medical illness that may be complicated through the use of a psychopharmacological treatment

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Michigan State University Psychiatry Clinic

    East Lansing, Michigan, 48824

Other trials in United States

About this study

The Department of Counseling, Educational Psychology, and Special Education and the Department of Psychiatry at Michigan State University have coordinated efforts to provide a diagnostic and treatment investigation for children, ages seven to eighteen, with Selective Mutism. The purpose of this study is to examine the utility of fluoxetine for the treatment of this debilitating disorder. Fluoxetine is expected to improve social anxiety and selective mutism symptomology.

Read the detailed description

Children with selective mutism (SM) are at risk for current and continuing academic and socio-emotional difficulties. Unfortunately, this issue is complicated by the fact these children often respond poorly to psychosocial intervention. This leaves parents with the overwhelming decision to attempt a trial of medication regardless of the little available data on the evidence base of this approach. Despite the paucity of research, psychiatrists are prescribing fluoxetine for children with SM "off label", as the Food and Drug Administration (FDA) has yet to approve fluoxetine for this indication. This study blends the psychopharmacological expertise of psychiatrists with the mental health, systems, and psychological evaluation expertise of school psychologists to identify an appropriate psychopharmacological solution for children and adolescents with this debilitating disorder. To that end, this study will examine the utility of fluoxetine for the treatment of five children and adolescents, ages seven to eighteen, diagnosed with SM through the use of a non-concurrent multiple-baseline single-case design with a single-blind placebo-controlled procedure. Treatment effectiveness will be evaluated by visual analysis of the data, the Wampold and Worsham multiple-baseline design randomization test, and the Kendall's Tau + Mann-Whitney U effect size. Multiple methods of assessment including standardized measures, such as the Selective Mutism Questionnaire (SMQ), and behavior ratings, such as Direct Behavior Ratings (DBRs), will be used to gather baseline and treatment data. Multiple informants (i.e., parents, teachers, and psychiatrists) will provide information on treatment effect across settings (i.e., school and community). Information regarding adverse effects associated with fluoxetine treatment including a measure of behavioral disinhibition, parental acceptance of the fluoxetine intervention, and compliance with taking the medication will also be gathered.

Being tested
Fluoxetine
Keywords
Selective Mutism, Social Anxiety, Children, Adolescents
Medical subject headings
Mutism

What participants receive

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

  • FluoxetineDrug

    Also called Prozac

    Children will receive a placebo or fluoxetine at different times dependent upon random assignment to a treatment schedule.

Study groups in NCT05378711
Study groupRoleWhat they receive
FluoxetineExperimentalChildren will receive an introductory dose and therapeutic dose of fluoxetine at various time points in the study. Onset of fluoxetine is determined by assignment to a pre-determined randomized treatment schedule.
Receives: Drug: Fluoxetine

What is being measured

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

  1. Selective Mutism Questionnaire (Change Over 15 Weeks)

    Measured: 2 times per week for 15 weeks

Secondary outcomes (6)
  1. Multidimensional Anxiety Scale for Children - 2nd Edition (Change Over 15 Weeks)

    Measured: 2 times per week for 15 weeks

  2. Direct Behavior Ratings - Parent (Change Over 15 Weeks)

    Measured: Parent (3 times per week for 15 weeks); Teacher (5 times per week for 15 weeks)

  3. Clinical Global Impression (Change Over 15 Weeks)

    Measured: Parent and Teacher (2 times per week for 15 weeks); Psychiatrist (biweekly for 15 weeks)

  4. Side Effects Form for Children and Adolescents - Adapted (Change Over 15 Weeks)

    Measured: biweekly for 15 weeks

  5. Parent - Young Mania Rating Scale (Change Over 15 Weeks)

    Measured: 2 times per week for 15 weeks

  6. Treatment Evaluation Questionnaire - Parent

    Measured: End of Study (after 15 weeks)

Timeline

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

  1. First posted18 May 2022
  2. Study start1 Jan 2014
  3. Primary completion30 May 2015
  4. Study completion30 May 2015

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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
Double blind
Enrolment
6 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05378711
Sponsor's protocol ID
13-718F
Status last verified
May 2022
First submitted
19 May 2014
Last updated
18 May 2022
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Fluoxetine in people with Selective Mutism and Social Anxiety, run by Michigan State University at 1 site 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 7 inclusion and 4 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: finished, as of the sponsor's last update on 18 May 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Selective Mutism Questionnaire (Change Over 15 Weeks) (time frame: 2 times per week for 15 weeks). 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 18 May 2022.

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