Long-Term Safety of PRC-063 in Adolescents and Adults With ADHD
- Registration Number
- NCT02168127
- Lead Sponsor
- Rhodes Pharmaceuticals, L.P.
- Brief Summary
The purpose of this six month, open-label study is to evaluate the long-term safety and efficacy of PRC-063 in adults and adolescents with ADHD.
- Detailed Description
This is an open label, multicenter, phase 3 study to evaluate the safety and efficacy of PRC-063 (methylphenidate hydrochloride controlled-release capsules 25, 35, 45, 55, 70, 85 or 100 mg/day) in the treatment of Attention-Deficit/Hyperactivity Disorder (ADHD) in adolescent subjects aged ≥12 to \<18 years of age and adult subjects aged ≥18 years of age. In order to participate, subjects must have completed Purdue Pharma Study 063-009 or Purdue Pharma Study 063-010. This study will be conducted at approximately 50 centers across the United States and Canada. After giving written informed consent (as well as informed assent for subjects \<18 years of age), subjects will be screened to ascertain their suitability for the study according to the inclusion and exclusion criteria. There will be seven monthly efficacy and safety visits during which subjects will be assessed on active, open-label PRC-063. The starting dose will be at the discretion of the Investigator. Dose-adjustment visits may occur weekly to optimize the subject's dose via titration. For adolescent subjects, the maximum dose will be 85 mg/day. For adult subjects, the maximum dose will be 100 mg/day.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 360
Subjects must satisfy the following criteria to be enrolled in the study as an adolescent:
• Male or non-pregnant, non-nursing female at least 12 years of age and less than 18 years of age.
Subjects must satisfy the following criteria to be enrolled in the study as an adult:
• Male or non-pregnant, non-nursing female at least 18 years of age and meeting the local, legal definition of adult.
All subjects must also satisfy the following criteria to be enrolled in the study:
- Confirmation of ADHD diagnosis made at Visit 1 of Study 063-009 or 063-010 (inattentive, hyperactive/impulsive or combined-type, as defined by the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition based on clinician assessment using multiple informants and a structured interview).
- Female subjects must be one of the following:
- Surgically sterile prior to screening
- Postmenopausal
- if of childbearing potential, abstinent or willing to use a reliable method of contraception, such as oral contraceptive, two barrier methods, a barrier method plus a spermicidal agent.
- Female subjects of Child-Bearing Potential (FOCP) must have a negative serum β-hCG pregnancy test, as assessed at Visit 6 of Study 063-009 or 063-010 (data will not be available at the time of entry).
- If the subject is an adult, mentally and physically competent to sign an informed consent document indicating that they understand the purpose of and procedures required for the study and are willing to participate in the study. If the subject is an adolescent, mentally and physically competent to sign an informed assent document, in the case of the subject, and an informed consent document, in the case of the parent/guardian, indicating that they understand the purpose of and procedures required for the study and are willing to participate in the study.
- Able and willing to comply with the study procedures for the entire length of the study.
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• Having met any exclusion criteria for Study 063-009 or 063-010.
- Having been diagnosed during Study 063-009 or 063-010 with strokes, epilepsy, migraine headaches (greater than 1 instance every two months), glaucoma, thyrotoxicosis, tachyarrhythmias or severe angina pectoris or have serious or unstable medical illness. Subjects with controlled or stable asthma or diabetes will be permitted.
- Elevated blood pressure, defined as any values above 89 diastolic or 139 systolic, as assessed at Visit 6 of Study 063-009 or 063-010.
- Clinically significant ECG abnormalities, as assessed at Visit 6 of Study 063-009 or 063-010 (data will not be available at the time of entry).
- Clinically significant laboratory abnormalities, as assessed at Visit 6 of Study 063-009 or 063-010 (data will not be available at the time of entry).
- Currently receiving guanethidine, pressor agents, MAO inhibitors, coumarin anticoagulants, anticonvulsants (e.g. phenobarbital, phenytoin, primidone), phenylbutazone, tricyclic antidepressants (e.g. imipramine, desipramine), selective serotonin reuptake inhibitors (SSRIs) or herbal remedies (unless on a stable dose for 4 weeks).
- If the Investigator judges that continued treatment with PRC-063 is not in the subject's best interest.
- Subjects who are currently considered a suicide risk by the investigator.
- Having been diagnosed during Study 063-009 or 063-010 with schizophrenia, schizoaffective disorder, primary affective disorder, schizotypal personality, major depression, bipolar disorder, generalized anxiety, borderline personality disorder, antisocial personality or another unstable psychiatric condition requiring treatment.
- Having been diagnosed during Study 063-009 or 063-010 with physiological dependence (excluding nicotine) on narcotic analgesics or other psychoactive drugs (including barbiturates, opiates, cocaine, cannabinoids, amphetamines and benzodiazepines).
- Excessive consumption of alcohol occurring during Study 063-009 or 063-010 (consumes alcohol in quantities greater than 15 drinks per week on average; 1 drink is defined as 360 mL/12 oz. of beer, 120 mL/4 oz. of wine, or 30 mL/1 oz. of hard liquor).
- Currently (or within 30 days before the planned start of treatment) receiving an investigational drug or using an experimental medical device, other than PRC-063.
- Homeless.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description Active drug group PRC-063 PRC-063 - Active methylphenidate hydrochloride extended-release capsules drug group
- Primary Outcome Measures
Name Time Method occurrence of treatment-emergent adverse events Within 6 months
- Secondary Outcome Measures
Name Time Method Clinician-administered ADHD-5-Rating Scale Within 6 months
Trial Locations
- Locations (33)
Wake Research Associates
🇺🇸Raleigh, North Carolina, United States
UCLA
🇺🇸Los Angeles, California, United States
Houston Clinical Trials
🇺🇸Houston, Texas, United States
Florida Clinical Research Center
🇺🇸Maitlin, Florida, United States
Westex Clinical Investigations
🇺🇸Lubbock, Texas, United States
Diex Research Sherbrooke Inc.
🇨🇦Sherbrooke, Quebec, Canada
The Kids Clinic
🇨🇦Whitby, Ontario, Canada
Synergy Clinical Research
🇺🇸National City, California, United States
Newport Beach Clinical Research Associates, Inc.
🇺🇸Newport Beach, California, United States
Orange County Neuro Phychiatry Research Centre
🇺🇸Orange, California, United States
Sarkis Clinical Research
🇺🇸Gainesville, Florida, United States
Sarkis Clinical Trials
🇺🇸Gainesville, Florida, United States
Clinical Neuroscience Solutions
🇺🇸Orlando, Florida, United States
CNS Healthcare Jacksonville
🇺🇸Jacksonville, Florida, United States
Medical Research Network
🇺🇸New York, New York, United States
Center for Psychiatry and Behavioral Medicine Inc.
🇺🇸Las Vegas, Nevada, United States
Advanced Clinical Research
🇺🇸Boise, Idaho, United States
University of Cincinnati
🇺🇸Cincinnati, Ohio, United States
Oregon Center for Clinical Investigation
🇺🇸Salem, Oregon, United States
Clinical Neuroscience Solutions Inc.
🇺🇸Memphis, Tennessee, United States
IPS Research Company
🇺🇸Oklahoma City, Oklahoma, United States
FutureSearch Trials of Dallas, L.P.
🇺🇸Dallas, Texas, United States
Ericksen Research
🇺🇸Clinton, Utah, United States
Physiciatric and Behavioral Solutions
🇺🇸Salt Lake City, Utah, United States
Woodstock Research Center at Neuropsychiatric Associates
🇺🇸Woodstock, Vermont, United States
NeuroScience
🇺🇸Herndon, Virginia, United States
Red Oak Psychiatry Associates
🇺🇸Houston, Texas, United States
Doctors Jackiewicz Professional Medical Corporation
🇨🇦Niagara Falls, Ontario, Canada
Dr. Judy van Stralen
🇨🇦Ottawa, Ontario, Canada
Northwest Clinical Research Center
🇺🇸Bellvue, Washington, United States
FutureSearch Clinical Trials, L.P.
🇺🇸Austin, Texas, United States
Eastside Therapeutic Resource
🇺🇸Kirkland, Washington, United States
Dr. Margaret Weiss
🇨🇦Vancouver, British Columbia, Canada