RAP-219 for adults with focal seizures
Official title: A Phase 3, Randomized, Double-blind, Placebo-controlled Study to Evaluate the Efficacy and Safety of RAP-219 in Adult Participants With Focal Seizures
Run by Rapport Therapeutics Inc. · NCT07594119 · Data updated 2026-11-12
This study tests whether RAP-219 can reduce how often focal seizures happen in adults with focal epilepsy, compared with a placebo.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 75 Years |
| Sex | All |
| Enrollment | 312 (estimated) |
| Sponsor | Rapport Therapeutics Inc. Industry-sponsored |
| Locations | 14 sites (Huntsville, Alabama and 13 other locations) |
| Status | Recruiting |
| Started | September 1, 2026 |
| Main results expected | July 2029 |
| Study ends | September 2029 |
| Registry record updated | November 6, 2026 |
| Trial ID | NCT07594119 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 18–75 with a confirmed focal epilepsy diagnosis and on 1–3 stable antiseizure medications who can reliably record seizures daily.
✕Probably not a fit
Individuals with certain unstable medical or psychiatric conditions or a history of generalized epilepsy may not benefit from RAP-219.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This Phase 3 trial randomizes about 312 adults with focal epilepsy to receive either medium-dose RAP-219, low-dose RAP-219, or placebo in a 1:1:1 ratio during a double-blind treatment period. Afterward, participants may enter a long-term safety study or complete an 8-week post-treatment follow-up. Eligibility requires adult age, a confirmed focal epilepsy diagnosis, and stable use of 1–3 antiseizure medications with the ability to track seizures daily. The study excludes those with prior RAP-219 exposure, uncontrolled conditions, or certain other seizure types. Primary goals are to assess safety and whether RAP-219 lowers focal seizure frequency compared with placebo.
Why it matters
Potential benefit: If successful, RAP-219 could reduce seizure frequency and improve quality of life for adults with focal seizures.
How similar studies have gone: Previous studies of similar targeted anti-seizure strategies have shown mixed results; this study aims to establish efficacy and safety for RAP-219 in a larger Phase 3 cohort.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Age 18 - 75 2. BMI 18-45 kg/m2 3. Diagnosis of focal epilepsy for ≥24 months prior to Visit 1 4. 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 5. Concomitant use of between 1 and 3, inclusive, antiseizure medication(s) ASM(s) as maintenance, not including rescue or pro re nata (PRN) ASMs 6. Ability to keep accurate daily focal seizure records using an e-diary Exclusion Criteria: 1. Known hypersensitivity or prior exposure to RAP-219. 2. Unstable or uncontrolled serious medical, neurologic (other than focal epilepsy), or psychiatric condition that is ongoing or considered likely to recur 3. Anticipated need for surgery during the study period 4. Medical history of any of the following: 1. generalized epilepsy 2. focal preserved consciousness without observable manifestations (also known as focal aware nonmotor) as the participant's only seizure type 3. psychogenic nonepileptic seizure (PNES) 4. status epilepticus or seizure clusters (when individual seizures cannot be counted) within 12 months prior to Visit 1 (Day -56). 5. epilepsy surgery within 12 months prior to Visit 1 (Day -56). 5. Participation in another clinical study of an investigational product within 12 weeks or 5 half-lives of this other investigational product
Where it's running
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Clinic for Neurology
Huntsville, Alabama, United States Recruiting -
Pillar Clinical Research
Bentonville, Arkansas, United States Recruiting -
Colorado Springs Neurological Associates
Colorado Springs, Colorado, United States Recruiting -
K2 Medical Research
Maitland, Florida, United States Recruiting -
Serenity Research Center, LLC
Miami, Florida, United States Recruiting -
Hawaii Pacific Neuroscience
Honolulu, Hawaii, United States Recruiting
Show 8 more locations
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Re:Cognition Health-Chicago
Chicago, Illinois, United States Recruiting -
University of Nebraska Medical Center
Omaha, Nebraska, United States Recruiting -
Lenox Hill Hospital
New York, New York, United States Recruiting -
Velocity Clinical Research
Raleigh, North Carolina, United States Recruiting -
Vanderbilt University Medical Center
Nashville, Tennessee, United States Recruiting -
Baylor College of Medicine
Houston, Texas, United States Recruiting -
University of Texas Health Science Center in Houston
Houston, Texas, United States Recruiting -
Eastern Health Clinical School, Monach University Box Hill
Melbourne, Australia Recruiting
Study contacts
- Principal investigator: Vicente Villaneuva, M.D., PhD — Hospital Universitari i Politecnic La Fe, Spain
- Study coordinator: Rapport Medical
- Email: RAP-219-FOS@rapportrx.com
- Phone: 857 323 9048
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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RAP-219 in adults with focal seizures
This study tests whether RAP-219 can safely reduce the number of focal seizures in adults with focal epilepsy compared with placebo.
-
Long-term RAP-219 treatment for adults with focal onset seizures
This trial will try RAP-219, an investigational anti-seizure medication, in adults with refractory focal seizures to see if it is safe long-term and helps reduce seizures.
-
Evaluating cognitive impairment in patients with focal cryptogenic epilepsy
This study is testing how epilepsy affects thinking skills in people with different types of epilepsy to see if brain activity patterns can help understand their cognitive challenges better.
-
RAP-219 long-acting injectable safety and PK study in healthy adults
This early study tests RAP-219-LAI in healthy adults to see how it behaves in the body and whether it is safe and tolerable.
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Why People with Epilepsy Get More Infections
This study tests whether anti-seizure medicines affect immune function and infection risk in people with epilepsy.
-
Long-Term Epilepsy Outcomes in Children After Perinatal Stroke
This study looks at how epilepsy progresses in kids who had a stroke before 28 days old to see how their seizures and syndromes evolve over time.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.