Efficacy and Safety of SPN-812 (Viloxazine Extended-release Capsule) in Children With ADHD

September 29, 2021 updated by: Supernus Pharmaceuticals, Inc.

Evaluation of the Efficacy and Safety of SPN-812 (Viloxazine Extended-release Capsule) in Children With ADHD - A Double-Blind, Placebo-Controlled, Dose-Ranging Study

This was a randomized, double-blind, placebo-controlled, multicenter, 5-arm, parallel-group, dose-ranging study to assess the efficacy and safety of SPN-812 (Viloxazine Extended-release Capsule) in children 6-12 years of age with ADHD.

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

This study is a randomized, double-blind, placebo-controlled, multicenter, 5-arm, parallel-group, dose-ranging study to assess the efficacy, safety, and tolerability of SPN-812 (Viloxazine Extended-release Capsule) as monotherapy in the treatment of Attention-Deficit/Hyperactivity Disorder (ADHD) in children (6-12 years of age). Subjects are randomized in a 1:2:2:2:2 ratio to receive placebo or one of four active treatments (100 mg, 200 mg, 300 mg, or 400 mg SPN-812). The primary objective is to assess the efficacy of SPN-812 in reducing ADHD symptoms as measured by the Attention-Deficit/Hyperactivity Disorder Rating Scale, 4th Edition (ADHD-RS-IV).

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.
222

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 2

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
    • Florida
      • Maitland, Florida, United States, 32751
        • Florida Clinical Research Center, LLC

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 12 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Healthy male or female subjects, 6-12 years of age, inclusive, with a diagnosis of ADHD according to the Diagnostic and Statistical Manual of Mental Disorders-IV (DSM IV), confirmed with the Mini International Neuropsychiatric Interview for Children and Adolescents (MINI-KID).
  2. ADHD-RS-IV-Parent Version: Investigator Administered and Scored score of at least 26.
  3. CGI-S score of at least 4
  4. Weight of at least 20 kg.
  5. Free of medication for the treatment of ADHD or any psychosis for at least one week prior to enrollment.

Exclusion Criteria:

  1. Current or lifetime diagnosis of major depressive disorder, bipolar disorder, personality disorder, Tourette's disorder, or psychosis not otherwise specified.
  2. Currently meeting DSM-IV criteria for pervasive developmental disorder, obsessive compulsive disorder, post-traumatic stress disorder, or any other anxiety disorder as primary diagnosis.
  3. Significant systemic disease.
  4. Evidence of suicidality within the six months before Screening or at Screening.
  5. BMI greater than 95th percentile for the appropriate age and gender.
  6. Pregnancy or refusal to practice abstinence during the study for female subjects of childbearing potential (FOCP).
  7. Substance or alcohol use during the last three months.
  8. Positive urine screen for cotinine, alcohol, or drugs of abuse at Screening.

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: Placebo
Placebo, qd, oral capsule
Drug: Placebo
Placebo was administered once daily
Other Names:
  • PBO
Experimental: 100mg SPN-812
100mg SPN-812, qd, oral capsule
Drug: 100mg SPN-812
100mg SPN-812 was administered once daily and compared to placebo
Other Names:
  • SPN-812, Low Dose
Experimental: 200mg SPN-812
200mg SPN-812, qd, oral capsule
Drug: 200mg SPN-812
200mg SPN-812 was administered once daily and compared to placebo
Other Names:
  • SPN-812, Low-Medium Dose
Experimental: 300mg SPN-812
300mg SPN-812, qd, oral capsule
Drug: 300mg SPN-812
300mg SPN-812 was administered once daily and compared to placebo
Other Names:
  • SPN-812, Medium-High Dose
Experimental: 400mg SPN-812
400mg SPN-812, qd, oral capsule
Drug: 400mg SPN-812
400mg SPN-812 was administered once daily and compared to placebo
Other Names:
  • SPN-812, High Dose

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
The Efficacy of SPN-812 on the Attention-Deficit/Hyperactivity Disorder Rating Scale, 4th Edition (ADHD-RS-IV)
Time Frame: Baseline to Week 8 (End of Study)
The Primary Endpoint was the change from baseline in Attention-Deficit/Hyperactivity Disorder Rating Scale, 4th Edition (ADHD-RS-IV) Total score at Week 8 (End of Study). The ADHD-RS-IV is an ADHD-specific rating scale designed and validated to assess current ADHD symptomatology. The scale consists of 18 items that directly correspond to the 18 Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) symptoms of ADHD. Each item is rated on a 4-point Likert-type scale from 0 (never or rarely) to 3 (very often). A Total score is calculated by adding the responses of all 18 items (range: 0-54; the higher the score, the more severe the ADHD symptoms). Lower change from baseline scores (<0) represent a better outcome.
Baseline to Week 8 (End of Study)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Effect of SPN-812 on Clinical Global Impression - Improvement (CGI-I) Scale
Time Frame: Week 8 (End of Study)
The first additional secondary endpoint was the Clinical Global Impression-Improvement (CGI-I) Scale score at Week 8 (End of Study). The CGI-I scale is a single item assessment of how much the patient's illness has improved or worsened relative to a baseline state prior to the beginning of treatment. The CGI-I is rated on a 7-point Likert scale from 1 to 7, where 1 = "Very much improved", 2 = "Much improved", 3 = "Minimally improved", 4 = "No change", 5 = "Minimally worse", 6 = "Much worse", and 7 = "Very much worse". Successful therapy is indicated by a lower score (<4) in subsequent testing.
Week 8 (End of Study)
Effect of SPN-812 on the Clinical Global Impression - Severity (CGI-S) Scale
Time Frame: Baseline to Week 8 (End of Study)
The second additional secondary endpoint was the change from baseline in the Clinical Global Impression-Severity (CGI-S) Scale score at Week 8 (End of Study). The CGI-S scale is a single item clinician/investigator rating of the clinician's assessment of the severity of the ADHD symptoms in relation to the clinician's total experience with patients with ADHD. The CGI-S was rated on a 7-point Likert scale, where 1 = Normal, not at all ill, 2 = Borderline Ill, 3 = Mildly Ill, 4 = Moderately Ill, 5 = Markedly Ill, 6 = Severely Ill, and 7 = Extremely Ill. Successful therapy is indicated by a lower CGI-S score in subsequent testing. A lower change from baseline score (<0) represents a better outcome.
Baseline to Week 8 (End of Study)

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.
Supernus Pharmaceuticals, Inc.

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: Joseph T. Hull, PhD, Supernus Pharmaceuticals, Inc.

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)

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.
February 1, 2016

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.
July 25, 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.
July 25, 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).
December 15, 2015

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.
December 15, 2015

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.
December 17, 2015

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.
October 27, 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.
September 29, 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, 2020

More Information

Terms related to this study

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.
  • 812P202

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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