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A Phase I/IIa, Randomized, Double-Blind Study of the Safety and Efficacy of SPN-812 in Adults With ADHD

This study has been completed.
Information provided by (Responsible Party):
Supernus Pharmaceuticals, Inc. Identifier:
First received: April 19, 2010
Last updated: May 4, 2017
Last verified: May 2017
This will be a randomized, double-blind, placebo-controlled, parallel group, safety and tolerability study in adults with ADHD. The target subjects are healthy male or female adults aged 18 to 64 years, inclusive, with a diagnosis of ADHD. A total of fifty subjects will be enrolled at approximately 5 sites in the US. Subjects will be randomized (1:1) to one of two treatment groups, SPN-812V or placebo.

Condition Intervention Phase
ADHD Drug: SPN-812 Drug: Placebo Phase 1 Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Participant, Care Provider, Investigator, Outcomes Assessor
Primary Purpose: Other
Official Title: A Phase I/IIa Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study of the Safety and Efficacy of SPN-812 in Adults With Attention Deficit Hyperactivity Disorder (ADHD)

Further study details as provided by Supernus Pharmaceuticals, Inc.:

Primary Outcome Measures:
  • Investigator-rated Conners' Adult ADHD Rating Scales (CAARS) [ Time Frame: At Baseline and at each study visit (V1-V8) ]
    Change from Baseline in the Investigator-rated Conners' Adult ADHD Rating Scales (CAARS) Total ADHD Symptom Score

Secondary Outcome Measures:
  • CGI-Improvement (CGI-I) Scale [ Time Frame: At each study visit (V1-V8) ]
    Changes from Baseline in the CGI-Improvement (CGI-I) Scale At Baseline: CGI-Severity (CGI-S)

  • Self rated CAARS [ Time Frame: Baseline and at each study visit (V1-V8) ]
    Changes from Baseline in the Self rated CAARS Total ADHD Symptom Score

Enrollment: 52
Study Start Date: June 2010
Study Completion Date: December 2010
Primary Completion Date: December 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: SPN-812
viloxazine, oral, 300mg, tid, 6 weeks
Drug: SPN-812
Viloxazine, oral, 300mg, tid, 6 weeks
Other Name: viloxazine
Placebo Comparator: Placebo
placebo, oral, tid, 6weeks
Drug: Placebo
Placebo, oral, tid, 6 weeks


Ages Eligible for Study:   18 Years to 64 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion criteria:

  1. Able to provide informed consent prior to any study procedure being conducted.
  2. Capable and willing to comply with study procedures.
  3. Male or female aged 18 to 64, inclusive.
  4. Subjects with a current diagnosis of ADHD as confirmed by the Conners' Adult ADHD Diagnostic Interview for DSM-IV (CAADID)
  5. Clinical Global Impression - Severity (CGI-S) score of 4 or higher.
  6. On no treatment for ADHD or willing to be withdrawn from an ongoing treatment after a washout of at least 10 days.
  7. Body Mass Index (BMI) between 18.0 and 34.0 inclusive.
  8. Subject must be in general good health as determined by medical history, ECG, and other analysis that, in the judgment of the Investigator, would confirm the Subject's good health.
  9. Females of childbearing potential (FOCP) who, if sexually active, agree to use acceptable forms of contraception (including oral, transdermal, or implanted contraceptives; intrauterine device; female condom with spermicide; diaphragm with spermicide; cervical cap; abstinence; use of condom with spermicide by sexual partner or sterile [at least 6 months prior to SM administration] sexual partner) at least 14 days prior to start of study drug administration, throughout the study, and for 30 days following the last dose of SM.
  10. Postmenopausal females with amenorrhea for at least 2 years or females who are permanently sterilized (e.g., tubal occlusion, hysterectomy, bilateral salpingectomy).

Exclusion Criteria

  1. Current or past history of psychotic disorder or major depressive disorder with psychotic features.
  2. Presence of another primary DSM-IV-TR disorder.
  3. Suicidality, defined as either active suicidal plan/intent or active suicidal thoughts, in the 6 months before the Screening Visit or more than 1 lifetime suicide attempt. (The Columbia-Suicide Severity Rating Scales [C-SSRS] will be administered at each visit.)
  4. Substance or alcohol abuse/dependence within previous 6 months, or a positive urine drug screen at screening or baseline prior to first dose of study medication (SM).
  5. Any known or suspected significant medical or psychiatric illnesses that, in the judgment of the Investigator, may impair interpretation of study results or constitute a significant safety concern in the context of the clinical trial
  6. ECG abnormalities (clinically significant according to Investigator's opinion) or vital sign abnormalities (systolic blood pressure [SBP] <90 or >140 millimeters of mercury [mmHg], diastolic blood pressure [DBP] <40 or >90mmHg, or heart rate [HR] <40 or >100 beats per minute [BPM]) at screening.
  7. Clinically significant laboratory abnormalities; including presence of potential hepatic function impairment as shown by, but not limited to alanine aminotransferase (ALT/SGPT) values >2 times upper limit of normal (ULN), aspartate aminotransferase (AST/SGOT) > 2 times ULN, gamma-glutamyl transpeptidase (GGT) >3 times ULN, or total bilirubin >1.5 ULN .
  8. Medications, including health food supplements judged by the Investigator to be likely to have central nervous system activity (for example, St John's Wort, gingko leaf, and melatonin), are not permitted during the study. If the subject is taking the medication prior to study entry, there must be a 7 day washout period prior to first dose of SM.
  9. Lifetime history of tic disorder, Tourette's Disease, or organic brain disorder; or family history of Tourette's Disease.
  10. Current or lifetime history of hyperthyroidism unless treated and stable for at least 6 months.
  11. Participation in or plan to begin behavioral therapy during the study.
  12. Subject has a prior history of allergy or any significant adverse reaction (including rash) to study medication, or any of the product components.
  13. Females who are pregnant or lactating or are unwilling to use an acceptable form of contraception throughout the study.
  14. Difficulty swallowing whole capsules.
  15. History of seizures or risk factors for seizures (e.g., head trauma), not including febrile seizures.
  16. Use of an investigational drug or participation in an investigational study within 30 days prior to first dose of SM.
  17. Any reason which, in the opinion of the Investigator, would prevent the subject from participating in the study.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01107496

United States, Florida
Bradenton, Florida, United States
United States, Illinois
Libertyville, Illinois, United States
United States, Kentucky
Owensboro, Kentucky, United States
United States, Virginia
Herndon, Virginia, United States
Sponsors and Collaborators
Supernus Pharmaceuticals, Inc.
Study Director: Marina Lowen Supernus Pharmaceuticals, Inc.
  More Information

Responsible Party: Supernus Pharmaceuticals, Inc. Identifier: NCT01107496     History of Changes
Other Study ID Numbers: 812P201
Study First Received: April 19, 2010
Last Updated: May 4, 2017
Individual Participant Data  
Plan to Share IPD: No

Additional relevant MeSH terms:
Attention Deficit Disorder with Hyperactivity
Attention Deficit and Disruptive Behavior Disorders
Neurodevelopmental Disorders
Mental Disorders
Antidepressive Agents, Second-Generation
Antidepressive Agents
Psychotropic Drugs
Adrenergic Uptake Inhibitors
Neurotransmitter Uptake Inhibitors
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Adrenergic Agents
Neurotransmitter Agents
Physiological Effects of Drugs processed this record on June 23, 2017