A Long-term Study of the Safety and Effectiveness of RAP-219 in Adults With Focal Onset Seizures

NCT ID: NCT07219407

Last Updated: 2026-01-23

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-12-15

Study Completion Date

2028-02-03

Brief Summary

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This is a clinical research study for an investigational drug called RAP-219 in patients with Refractory Focal Epilepsy. This study is being conducted to determine RAP-219 Long- term safety and open-label antiseizure activity in patients with Refractory Focal Epilepsy.

Detailed Description

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This is a multi-center, open-label study to evaluate the long-term safety, tolerability, pharmacokinetics, pharmacodynamics and antiseizure activity of RAP-219 in adult participants with refractory focal seizures

Conditions

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Focal Epilepsy Epilepsy Refractory Focal Epilepsy Seizure Focal Seizure Focal Onset Seizure

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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RAP-219

Group Type EXPERIMENTAL

RAP-219

Intervention Type DRUG

Participants will receive one RAP-219 0.125 mg capsule daily for 3 days followed by one 0.25mg tablet RAP-219 daily for 28 days, then one 0.75mg tablet daily for the remainder of the treatment period.

Interventions

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RAP-219

Participants will receive one RAP-219 0.125 mg capsule daily for 3 days followed by one 0.25mg tablet RAP-219 daily for 28 days, then one 0.75mg tablet daily for the remainder of the treatment period.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Completion of the associated parent study (RAP-219-FOS-201) treatment period with acceptable tolerability, per Investigator.
* Diagnosis of refractory focal epilepsy
* Stable RNS(c) system settings
* A demonstrated history of compliance with RNS(c) system data interrogation and upload
* Good overall health other than focal epilepsy, per Investigator.
* BMI ≥ 18 kg/m\^2 and ≤ 45 kg/m\^2
* Willing and able to adhere to all aspects of the protocol.

Exclusion Criteria

* Known of hypersensitivity to RAP-219
* Any clinically unstable or serious medical, neurological (other than epilepsy), psychological, or behavioral problem; laboratory or ECG finding that would increase participant risk or should otherwise exclude the patient from participation, as assessed by Investigator
* Pregnancy, lactation, or individuals of reproductive potential who do not agree to simultaneously use two effective birth-control methods
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Rapport Therapeutics Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Imran Quraishi, MD

Role: PRINCIPAL_INVESTIGATOR

Yale University

Locations

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Consultants in Epilepsy and Neurology, PLLC

Boise, Idaho, United States

Site Status RECRUITING

Mayo Clinic

Rochester, Minnesota, United States

Site Status RECRUITING

NYU Langone Comprehensive Epilepsy Center

New York, New York, United States

Site Status RECRUITING

Cleveland Clinic Foundation

Cleveland, Ohio, United States

Site Status RECRUITING

University of Pennsylvania - Department of Neurology

Philadelphia, Pennsylvania, United States

Site Status RECRUITING

Vanderbilt University Medical Center

Nashville, Tennessee, United States

Site Status RECRUITING

Baylor College of Medicine

Houston, Texas, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Daniela Moreno

Role: CONTACT

(857) 323-9048

Beth Bowers

Role: CONTACT

(857) 323-9048

Other Identifiers

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RAP-219-FOS-901

Identifier Type: -

Identifier Source: org_study_id

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