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Attention Deficit Disorder With HyperactivityPhase 2NCT00626236

Phase 2a Study of Safety and Tolerability of SPN-810 in Children With ADHD and Persistent Serious Conduct Problems

A Phase 2 study testing SPN-810 in people with Attention Deficit Disorder With Hyperactivity and Conduct Disorder, run by Supernus Pharmaceuticals, Inc. at 9 sites 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 primary objective was to evaluate the safety and tolerability of four doses of SPN-810 in children with ADHD and persistent serious conduct problems. Read more about this study

Who is it for?
Ages 6 to 12 years
What is being tested?
SPN-810
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
78 participants
Where
9 sitesUnited States
Study dates
21 Oct 2008to 23 Sep 2009
Phase
Phase 2
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

  • Healthy pediatric male or female subjects, age 6 to 12 years.
  • Diagnostic and Statistical Manual of Mental Disorders - IV -Text Revision (DSM-IV-TR) diagnosis of ADHD.
  • NCBRF-TIQ disruptive behavior disorder subscale 27 or greater at baseline; AND a score of 2 or more on at least 1 of the following 3 items of the conduct problem subscale: knowingly destroys property, gets in physical fights, physically attacks people.
  • IQ greater than 71.

Who cannot join

  • Current or lifetime diagnosis of bipolar disorder, post-traumatic stress disorder, personality disorder, or psychosis not otherwise specified.
  • Currently meeting DSM-IV-TR criteria for major depressive disorder, obsessive compulsive disorder, or pervasive developmental disorder.
  • Any other anxiety disorder as primary diagnosis.
  • Use of anticonvulsants, antidepressants, lithium, carbamazepine, valproic acid, or cholinesterase inhibitors within 2 weeks of baseline.
  • Unstable endocrinological or neurological conditions which confound the diagnosis or are a contraindication to treatment with antipsychotics.

Trial locations and contacts

9 sites in 1 country.

9 sites in 1 country

United States9 sites
  • Northwest Clinical Trials

    Bellevue, Washington, 98004

  • Florida Clinical Research Center

    Bradenton, Florida, 32408

  • Sarkis Clinical Trials

    Gainesville, Florida, 32607

  • Capstone Clinical Research

    Libertyville, Illinois, 60048

  • Clinical Neuroscience Solutions, Inc.

    Memphis, Tennessee, 38119

  • IPS Research

    Oklahoma City, Oklahoma, 73103

  • CNS Healthcare

    Orlando, Florida, 32806

  • Alliance Research Group

    Richmond, Virginia, 23229

  • The Psychopharm Research Cntr - LSU Dept of Psychiatry

    Shreveport, Louisiana, 71103

Other trials in United States

About this study

Official title: A Randomized, Multicenter, Parallel Group, Dose-Ranging Study to Evaluate the Safety and Tolerability of SPN-810 in Children With Attention-Deficit/Hyperactivity Disorder (ADHD) and Persistent Serious Conduct Problems

The primary objective was to evaluate the safety and tolerability of four doses of SPN-810 in children with ADHD and persistent serious conduct problems.

Read the detailed description

This will be a randomized, multicenter, parallel group, dose-ranging safety and tolerability study in children with ADHD and persistent serious conduct problems. The target subjects are healthy male or female children aged 6 to 12 years, inclusive, with a diagnosis of ADHD with persistent serious conduct problems. To determine eligibility for the study, subjects will undergo an initial screening visit. Seventy-two subjects will be randomized in the study; assuming a 17% dropout rate, it is anticipated that 60 subjects will complete the study. The study will consist of a Screening Period (within 28 days prior to the first dose administration), a Titration Period of 2 to 5 weeks, a Maintenance Period of 6 weeks, and a Safety Follow-up, which will be performed 30 days after the final study visit. The total subject duration in the study will be 16 to 19 weeks depending on the treatment group assignment. The total study duration is anticipated to be 15.5 months. A total of 72 subjects will be randomized based on weight at baseline, to 1 of 4 treatment groups.

Being tested
SPN-810
Keywords
ADHD and conduct problems
Medical subject headings
Attention Deficit Disorder with Hyperactivity, Conduct Disorder

What participants receive

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

  • SPN-810Drug

    Also called molindone

    1.67mg capsule taken TID

  • SPN-810Drug

    Also called molindone

    3.33mg capsule taken TID

  • SPN-810Drug

    Also called molindone

    5mg capsule taken TID

  • SPN-810Drug

    Also called molindone

    6.67 mg capsule taken TID

Study groups in NCT00626236
Study groupRoleWhat they receive
Treatment 1ExperimentalTreatment 1: SPN-810 5mg/day for subjects <30kg and 10mg/day for subjects ≥30kg
Receives: Drug: SPN-810
Treatment 2ExperimentalTreatment 2: SPN-810 10mg/day for subjects <30kg and 20mg/day for subjects ≥30kg.
Receives: Drug: SPN-810
Treatment 3ExperimentalTreatment 3: SPN-810 15mg/day for subjects <30kg and 30mg/day for subjects ≥30kg.
Receives: Drug: SPN-810
Treatment 4ExperimentalTreatment 4: SPN-810 20mg/day for subjects <30kg and 40mg/day for subjects ≥30kg.
Receives: Drug: SPN-810

What is being measured

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

  1. The Nisonger Child Behavior Rating Form- Typical Intelligence Quotient (NCBRF-TIQ) Conduct Problem Subscale Score

    The Nisonger Child Behavior Rating Form (NCBRF) is an instrument designed to assess the behavior of children with intellectual or developmental disabilities. The NCBRF-TIQ is a 66-item behavior rating form designed to assess the behavior of children and adolescents with typical development. The NCBRF is made up of three sections: I, Where raters can identify unusual circumstances that may have affected the youth's behavior; II, where positive behaviors are rated, and III, a listing of problem behaviors. There are separate Teacher and Parent versions of the form, and the NCBRF takes about 15 minutes to complete. The NCBRF is designed to be used with children and adolescents ages 3 to 16 years. The lowest score is a "0" and the highest score is "198". A higher score of the Conduct Problem Subscale score means a worse outcome. A change or negative score means improvement. Data represent the change from baseline (Visit 1) and 11 time points (Visit 2 to Visit 12).

    Measured: Weekly visits starting from Visit 1 (Week 1) to Visit 12 (12 weeks)

Secondary outcomes (5)
  1. The Changes From Baseline in the CGI-S

    The CGI scale was developed to provide a brief, stand-alone assessment of the clinician's view of a subject's global functioning prior to and after the administration of study medication. The severity of illness (CGI-S) is rated by the investigator on a 7-point scale with 1=Normal, 2=Borderline ill, 3=Mildly ill, 4=Moderately ill, 5=Markedly ill, 6=Severely ill, and 7=Extremely ill. Data represent the change from baseline (Visit 1) and 11 time points (Visit 2 to Visit 12). A lower overall score in subsequent testing indicates successful therapy.

    Measured: Weekly visits starting from Visit 1 (Week 1) to Visit 12 (12 weeks)

  2. Clinical Global Impression - Improvement Scale (CGI-I)

    Clinical Global Impression Scale. CGI-I is measured relative to the condition at the Baseline on a 7-point scale with 1=Very much improved, 2=Much improved, 3=Minimally improved, 4=No change, 5=Minimally worse, 6=Much worse, and 7=Very much worse. A lower overall score in subsequential testing indicates successful treatment. Data represent the change from baseline (Visit 1) and 11 time points (Visit 2 to Visit 12).

    Measured: Weekly visits starting from Visit 1 (Week 1) to Visit 12 (12 weeks)

  3. SNAP-IV ADHD Inattention

    The ratings from the SNAP-IV scale are grouped into the following 3 subscales: ADHD-Inattention (items #1-9), ADHD-Hyperactivity/Impulsivity (items #10-18), and ADHD combined (items #0-18) Subscales. The symptoms are scored on a 4-point scale. Each subscale score is the average rating of the items scores for the subscale. For the inattention subscale, the scores range from 0-27, the higher the score, the worse the outcome.

    A decrease in score means improvement. Data represent the change between Baseline (Visit 1) to Visit 2, Visit 4, Visit 6, Visit 10 and Visit 12.

    Measured: Weekly visits starting from Visit 1 (Week 1) to Visit 12 (12 weeks)

  4. SNAP-IV Subscales ADHD Hyperactivity/Impulsivity

    The ratings from the SNAP-IV scale are grouped into the following 3 subscales: ADHD-Inattention (items #1-9), ADHD-Hyperactivity/Impulsivity (items #10-18), and ADHD combined (items #1-18) Subscales. The symptoms are scored on a 4-point scale. Each subscale score is the average rating of the items scores for the subscale. For the Hyperactivity/Impulsivity subscale, the scores range from 0-27, the higher the score, the worse the outcome.

    A decrease in score means improvement. Data represent the change between Baseline (Visit 1) to Visit 2, Visit 4, Visit 6, Visit 10 and Visit 12.

    Measured: Weekly visits starting from Visit 1 (Week 1) to Visit 12 (12 weeks)

  5. SNAP-IV Subscales - ADHD Combined

    The ratings from the SNAP-IV scale are grouped into the following 3 subscales: ADHD-Inattention (items #1-9), ADHD-Hyperactivity/Impulsivity (items #10-18), and ADHD combined (items #1-18) Subscales. The symptoms are scored on a 4-point scale. Each subscale score is the average rating of the items scores for the subscale. For the combined subscale, the scores range from 0-54, the higher the score, the worse the outcome.

    A decrease in score means improvement. Data represent the change between Baseline (Visit 1) to Visit 2, Visit 4, Visit 6, Visit 10 and Visit 12.

    Measured: Weekly visits starting from Visit 1 (Week 1) to Visit 12 (12 weeks)

Timeline

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

  1. First posted29 Feb 2008 (estimated)
  2. Study start21 Oct 2008
  3. Primary completion23 Sep 2009
  4. Study completion23 Sep 2009

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
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
78 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00626236
Sponsor's protocol ID
810P201
Status last verified
Aug 2025
First submitted
20 Feb 2008
Last updated
9 Dec 2025
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Publications

  • Stocks JD, Taneja BK, Baroldi P, Findling RL. A phase 2a randomized, parallel group, dose-ranging study of molindone in children with attention-deficit/hyperactivity disorder and persistent, serious conduct problems. J Child Adolesc Psychopharmacol. 2012 Apr;22(2):102-11. doi: 10.1089/cap.2011.0087. Epub 2012 Feb 28.

    PubMed 22372512

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing SPN-810 in people with Attention Deficit Disorder With Hyperactivity and Conduct Disorder, run by Supernus Pharmaceuticals, Inc. at 9 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 5 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 9 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 9 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. 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?

Yes. Results are posted in the registry (first posted 16 Sep 2025). 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?

The Nisonger Child Behavior Rating Form- Typical Intelligence Quotient (NCBRF-TIQ) Conduct Problem Subscale Score (time frame: Weekly visits starting from Visit 1 (Week 1) to Visit 12 (12 weeks)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00626236, which also lists 1 linked publication.

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 9 Dec 2025.

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