Core Insights - Praxis Precision Medicines reported positive results from the RADIANT study, showing a 56.3% median reduction in seizure frequency over eight weeks in focal onset seizure patients, with 22% achieving 100% seizure reduction in the last 28 days [1][2][3] - The company has initiated two registrational studies for Developmental and Epileptic Encephalopathies (DEEs): EMERALD for broad DEEs with relutrigine and EMBRAVE3 for SCN2A Gain-of-Function with elsunersen [1][2] - Relutrigine received U.S. FDA Breakthrough Therapy Designation for treating seizures associated with SCN2A and SCN8A DEEs, facilitating expedited development [1][2] - As of June 30, 2025, Praxis had approximately $447 million in cash and investments, providing a financial runway into 2028 [1][5] Clinical Development - The RADIANT study demonstrated a rapid and sustained response, with around 60% of patients achieving a 50% response rate [3] - Enrollment for the POWER1 pivotal study for vormatrigine is progressing well, with plans to initiate POWER2 and POWER3 studies soon [2][3] - The EMERALD study for relutrigine is expected to enroll up to 160 patients, with completion anticipated in 2026 [6] - The EMBRAVE3 study for elsunersen has been initiated, targeting SCN2A patients aged 2 to 18 years [6] Financial Performance - For Q2 2025, Praxis reported a net loss of $71.1 million, compared to a net loss of $32.7 million in Q2 2024 [10][21] - Research and development expenses increased to $63.0 million in Q2 2025 from $27.3 million in Q2 2024, primarily due to investments in the Cerebrum™ platform [8][21] - General and administrative expenses rose to $13.1 million in Q2 2025 from $10.6 million in Q2 2024 [9][21] Future Outlook - Praxis plans to present additional data at the 36th International Epilepsy Congress on August 31, 2025, and at the American Epilepsy Society Annual Meeting in December 2025 [3] - The company is on track to nominate development candidates for its early-stage ASO therapeutic initiatives by the end of 2025 [6]

Pipeline and Catalysts - The company has 4 assets in late stage development[6] - Clinical readouts are expected in the next 4 quarters[6] - Topline results for the RADIANT open label study of Vormatrigine in focal onset or generalized epileptic seizures are expected by mid-2025[17, 37] - Topline results from the ESSENTIAL3 studies of Ulixacaltamide in Essential Tremor are expected in Q3 2025[17] - EMBOLD Cohort 2 topline results for Relutrigine in SCN2A GoF and SCN8A are expected in 1H 2026, with NDA filing in 2026[17] Epilepsy Portfolio - The US market opportunity for Vormatrigine in common epilepsy (3.5 million US prevalence) is estimated to be greater than $2.5 billion[20] - The US market opportunity for Relutrigine in developmental epilepsies (over 200,000 patients) is estimated to be greater than $3 billion[20] - The US market opportunity for Elsunersen in SCN2A genetically typified developmental epilepsies (~2,000 patients) is estimated to be greater than $500 million[20] - EMBRAVE Part 1 data showed a 39% mean and 43% median reduction in seizures from baseline in SCN2A GoF patients treated with Elsunersen[82] Essential Tremor - Up to 50% of Essential Tremor patients are not receiving treatment for their condition[105] - 85% of neurologist visits are for patients seeking Essential Tremor treatment[108]

Corporate Update - Praxis Precision Medicines is on track for six major study readouts across four programs over the next 12 months, with pivotal studies for developmental and epileptic encephalopathy (DEE) programs set to begin in mid-2025 [1][2] - The company reported cash and investments of $472 million as of March 31, 2025, which is expected to fund operations into 2028 [1][6] Product Development - Vormatrigine is demonstrating a best-in-class safety profile, with new data showing no food effect and higher dosing tolerability [1][3] - The registrational cohort of the EMBOLD study is recruiting strongly, with topline results expected by the first half of 2026 [2][5] - The EMERALD study for relutrigine will be initiated in mid-2025, targeting a broader DEE patient population [2][5] - The EMBRAVE study with elsunersen is progressing well, with topline results expected in the first half of 2026 [2][5] Financial Performance - Research and development expenses increased to $60.8 million for Q1 2025, compared to $27.0 million in Q1 2024, primarily due to increased expenses related to the Cerebrum™ platform [8] - General and administrative expenses decreased to $13.9 million for Q1 2025, down from $15.3 million in Q1 2024 [9] - The net loss for Q1 2025 was $69.3 million, compared to a net loss of $39.6 million in Q1 2024 [10][21]

Company Overview - Praxis Precision Medicines, Inc. is a clinical-stage biopharmaceutical company focused on developing therapies for central nervous system (CNS) disorders characterized by neuronal excitation-inhibition imbalance [3] - The company utilizes genetic insights to create therapies for both rare and more prevalent neurological disorders through its proprietary platforms, Cerebrum™ and Solidus™ [3] - Praxis has a diversified CNS portfolio that includes multiple programs across epilepsy and movement disorders, featuring four clinical-stage product candidates [3] Upcoming Event - Praxis will host a virtual investor event on May 2, 2025, from 10:00 a.m. to 11:30 a.m. EDT, focusing on its clinical programs in developmental and epileptic encephalopathies (DEEs) [1][2] - The event will be led by the Praxis management team, and a replay will be available for 90 days on the company's website [2] Clinical Studies - The company is conducting several studies, including: - The EMBOLD study evaluating relutrigine for SCN2A and SCN8A DEEs [4] - The EMERALD study evaluating relutrigine for broader DEEs [4] - The EMBRAVE3 study evaluating elsunersen for SCN2A gain-of-function DEE [4]