NCT07563881 · Rapport Therapeutics Inc.
Study Evaluating the Efficacy and Safety of RAP-219 in Adult Participants With Focal Seizures FOCUS-1
(FOCUS 1)
What this study is about
This is a clinical research study for an experimental drug called RAP-219 in adult participants with focal seizures. This study is being conducted to determine if RAP-219 is safe and effective in reducing focal seizure frequency.
View original scientific description
This is a clinical research study for an investigational drug called RAP-219 in adult participants with focal seizures. This study is being conducted to determine if RAP-219 is safe and effective in reducing focal seizure frequency.
Interventions
DRUG
RAP-219
RAP-219 high dose tablets administered orally daily
DRUG
RAP-219
RAP-219 medium dose tablets administered orally daily
OTHER
Placebo
Matching placebo tablets administered orally daily
Primary outcome measures
Median Percent Change in Seizure Frequency
Time frame: End of double-blind treatment period (end of week 14) vs Baseline
Median percent change in seizure frequency and ≥ 50% seizure frequency reduction responder rates:
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
- Age 18 - 75
- BMI 18-45 kg/m2
- Diagnosis of focal epilepsy for ≥24 months prior to Visit 1
- Report from at least 1 brain MRI or CT scan and 1 EEG study, each completed within 10 years prior to Visit 1, consistent with focal epilepsy diagnosis
- Concomitant use of between 1 and 3, inclusive, antiseizure medication(s) ASM(s) as maintenance, not including rescue or pro re nata (PRN) ASMs
- Ability to keep accurate daily focal seizure records using an e-diary
Exclusion criteria
- Known hypersensitivity or prior exposure to RAP-219.
- Unstable or uncontrolled serious medical, neurologic (other than focal epilepsy), or psychiatric condition that is ongoing or considered likely to recur
- Anticipated need for surgery during the study period
- Medical history of any of the following:
- generalized epilepsy
- focal preserved consciousness without observable manifestations (also known as focal aware nonmotor) as the participant's only seizure type
- psychogenic nonepileptic seizure (PNES)
- status epilepticus or seizure clusters (when individual seizures cannot be counted) within 12 months prior to Visit 1 (Day -56).
- epilepsy surgery within 12 months prior to Visit 1 (Day -56).
- Participation in another clinical study of an investigational product within 12 weeks or 5 half-lives of this other investigational product
Where
- Palmdale, California
- Fort Wayne, Indiana
- Bethesda, Maryland
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 Jun 16, 2026 · Source of record for eligibility and locations