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Rapport Announces Positive Topline Results from Phase 2a Clinical Trial of RAP-219 in Patients with Focal Onset Seizures

Rapport Therapeutics, Inc. (RAPP) | September 8, 2025

By Oscar Wright

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Rapport Therapeutics, Inc. announced positive topline results from the Phase 2a clinical trial of RAP-219 in patients with drug-resistant focal onset seizures.

The trial met primary long episode endpoints with high statistical significance, and RAP-219 demonstrated a 77.8% reduction in clinical seizures with some patients achieving seizure freedom for the 8-week treatment period.

The data support the advancement of RAP-219 into Phase 3 registrational trials.

Reduction in Clinical Seizures

Patients achieved a 77.8% reduction in clinical seizures with some experiencing seizure freedom during the 8-week treatment period.

Statistical Significance

The trial met primary long episode endpoints with high statistical significance, indicating the effectiveness of RAP-219.

Advancement to Phase 3

The positive results support the advancement of RAP-219 into Phase 3 registrational trials for further evaluation.

  • The Phase 2a clinical trial demonstrated a significant reduction in long episodes and clinical seizures, providing promising results for patients with drug-resistant focal onset seizures.
  • The success of RAP-219 in the trial marks a potential advancement in anti-seizure medications, addressing the need for novel treatment options with meaningful benefits.
  • Physicians and patients may find hope in the potential of RAP-219 to offer effective treatment and possibly achieve seizure freedom in drug-resistant focal seizure patients.

The positive topline results of the Phase 2a clinical trial of RAP-219 showcase the potential of this investigational medication in treating drug-resistant focal onset seizures. With significant reductions in clinical seizures and the promise of seizure freedom, RAP-219 stands as a hopeful advancement in epilepsy treatment options.