NCT04419272 · VA Office of Research and Development
Methylphenidate for the Treatment of Epilepsy-related Cognitive Deficits
What this study is about
Methylphenidate (MPH) is a stimulant, FDA-approved for the treatment of attention deficit hyperactivity disorder (ADHD). It is unknown, however, if stimulants would be of benefit for memory and thinking problems due to epilepsy. In this study, participants will be assigned randomly (i.e., by flip of a coin), to a group that takes MPH and a group that takes a placebo (sugar pill).
View original scientific description
Methylphenidate (MPH) is a stimulant, FDA-approved for the treatment of attention deficit hyperactivity disorder (ADHD). It is unknown, however, if stimulants would be of benefit for memory and thinking problems due to epilepsy. In this study, participants will be assigned randomly (i.e., by flip of a coin), to a group that takes MPH and a group that takes a placebo (sugar pill). Participants will not know the group to which they have been assigned.
Interventions
DRUG
Methylphenidate
10mg twice per day, at 8am and 12pm, for one week, then increased to 20mg twice daily, at 8am and 12pm, for the next 7 weeks during the double-blinded period.
OTHER
Placebo
When assigned to receive the placebo during the double-blinded period, subjects will be given a sugar pill for 8 weeks. The sugar pill will be taken twice per day, at 8am and 12pm.
DRUG
Methylphenidate
During the open-label extension phase, dosing will begin at 10mg twice per day, at 8am and 12pm, for one week. The dosage will then increase to 20mg twice daily, at 8am and 12pm, for the next 7 weeks.
Primary outcome measures
Change in Conners Continuous Performance Test (CPT), Following Placebo vs. Methylphenidate
Time frame: Week 8
Conners Continuous Performance Test (CPT) d' value, a measure of attention, compared post-placebo vs. post-methylphenidate (MPH) in a double-blind, parallel group, placebo controlled, randomized design
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- SUBJECTS WITH EPILEPSY Participants will include adult subjects with focal-onset epilepsy, based on clinical history, imaging studies and ictal and/or interictal EEG interpreted by a clinical epileptologist. Seizures may be symptomatic, idiopathic, traumatic, or non- traumatic in etiology. Subjects must have self-reported cognitive dysfunction. Subjects must also meet the following eligibility criteria:
- Age 18 years of age or older;
- Capacity to provide informed consent;
- Ability to live independently and complete activities of daily living;
- Stable seizure frequency at the time of enrollment, such that the subject's treating physician does not believe a change in ASM regimen to be warranted during the trial (ASMs should remain unchanged during the 16 weeks of participation unless absolutely required clinically due an unanticipated change in seizure frequency or severity);
- Fluency in written and spoken English. 2. CONTROLS \*DO NOT UNDE
Where
- Miami, Florida
- Boston, Massachusetts
- New York, New York
- Portland, Oregon
Collaborators
VA New York Harbor Healthcare System, Portland VA Medical Center, Miami VA Healthcare System, VA Boston Healthcare System
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Apr 20, 2026 · Source of record for eligibility and locations