New Headquarters Will Support Company's Work to Deliver zorevunersen, a Potential Disease-Modifying Medicine, to Patients with Dravet Syndrome and Expansion of Research EffortsLease is One of the Largest in Greater Boston Life Sciences Over the Past YearWALTHAM, Mass., Jan. 27, 2026 /PRNewswire/ -- Anchor Line Partners, LLC and Northwood Investors, LLC announced today that they have secured a significant long-term lease with biotechnology company Stoke Therapeutics (Nasdaq: STOK) at 245 Fifth Avenue in Wal ...

Summary of Stoke Therapeutics FY Conference Call Company Overview - **Company**: Stoke Therapeutics (NasdaqGS:STOK) - **CEO**: Ian Smith, in role since March 2025 - **Focus**: Upregulating protein expression for haplo-insufficient diseases, primarily targeting genetic conditions like Dravet syndrome and Autosomal Dominant Optic Atrophy (ADOA) [2][3] Key Developments - **Lead Medicine**: Zorevunersen, targeting Dravet syndrome by upregulating the SCN1A gene to increase NaV1.1 expression, aiming to reduce seizures and improve neurodevelopment [3][4] - **Clinical Trials**: - Currently in Phase 3 for Dravet syndrome with a target enrollment of 150 patients, approximately 60 patients have been randomized, and another 60 are in the screening phase [5][6] - Enrollment expected to complete by Q2 2026, with potential NDA submission in 2027 or early 2028 [6][20] - **Long-term Data**: Patients have been followed for up to four years, showing durability in seizure reduction (up to 85%) and improvements in neurocognition [7][10][18] Financial Position - **Funding**: Approximately $400 million available, sufficient to fund operations through 2028 [8][9] - **Collaboration**: Partnership with Biogen, which licensed commercial rights to zorevunersen and funds 30% of R&D development [21][22] Market Opportunity - **Patient Population**: Estimated 40,000 patients with Dravet syndrome across key geographies (15-20,000 in the U.S. and Europe) [20][21] - **Commercial Potential**: Anticipated robust demand for a disease-modifying treatment, with market research indicating high clinician willingness to prescribe [41][42] Regulatory Pathway - **Breakthrough Designation**: Zorevunersen has received this designation, allowing for expedited development discussions with the FDA [27][28] - **FDA Interaction**: Productive discussions with the FDA regarding the potential for filing based on Phase 1, 2, and OLE data, although the timeline for filing may not be significantly shortened [28][30] Pipeline and Future Plans - **Next Steps**: - Completion of Phase 3 enrollment and subsequent NDA filing [24][25] - Initiation of clinical trials for ADOA (STK-002) and SYNGAP1, with expectations for early efficacy results by the end of 2026 [50][51] - **Regulatory Strategy**: Focus on demonstrating improvement in vision for ADOA, which could shorten clinical study durations [52][53] Additional Insights - **Data Integrity**: Emphasis on the importance of long-term data and observed outcomes in regulatory discussions to support claims of disease modification [45][46] - **Market Positioning**: Differentiation from existing seizure medications by positioning zorevunersen as a true disease-modifying treatment [48][49] This summary encapsulates the critical points discussed during the Stoke Therapeutics FY Conference Call, highlighting the company's strategic focus, clinical advancements, financial health, and regulatory strategies.

Zorevunersen for Dravet Syndrome - Stoke Therapeutics is advancing zorevunersen as a potential disease-modifying therapy for Dravet Syndrome[9] - Phase 3 study (EMPEROR) enrollment is expected to complete in Q2 2026 with data readout in mid-2027 to support NDA[12, 38] - Approximately 330 patients have been identified globally for the EMPEROR study, with ~60 in screening and ~60 randomized[12, 39] - Data from ongoing OLE studies show continuing improvements in cognition and behavior over 36 months[24] - Zorevunersen demonstrated significant reduction in major motor seizure frequency at 6 months compared to natural history data, with an 8248% reduction compared to a 2043% reduction in the natural history group (P=00181)[26] - In OLE studies, 86% of patients experienced CSF protein elevation, classified as a TEAE in 45%[31] STK-002 for Autosomal Dominant Optic Atrophy (ADOA) - A Phase 1 study of STK-002 for ADOA has been initiated in the UK and Europe[11] Financial Status and Collaboration - Stoke Therapeutics had approximately $3917 million in cash, cash equivalents, and marketable securities as of December 31, 2025, with funding anticipated into 2028[12] - A strategic collaboration with Biogen exists for the development and commercialization of zorevunersen, with Biogen holding exclusive commercialization rights outside of the US, Canada, and Mexico[48] - The Biogen collaboration includes $165 million upfront, shared development costs, and potential milestone payments of $385 million[49] Market Opportunity - There are approximately 38,000 patients with Dravet syndrome across 7 major markets[40, 44]

Core Viewpoint - U.S. stock futures are lower, with significant declines in several companies' shares during pre-market trading, particularly Exelixis Inc, which reported preliminary financial results for fiscal year 2025 [1]. Group 1: Exelixis Inc - Exelixis reported preliminary US net product revenue of $2.123 billion for fiscal year 2025 [1]. - The company projects net product revenue for 2026 to be between $2.325 billion and $2.425 billion [1]. - Exelixis shares fell 4.6% to $42.01 in pre-market trading following the announcement [1]. Group 2: Other Companies - Synchrony Financial shares dipped 9.5% to $78.61 in pre-market trading [3]. - Stoke Therapeutics Inc declined 8.7% to $30.00, announcing updates on enrollment timelines and Phase 3 data for zorevunersen [3]. - Capital One Financial Corp fell 8.4% to $228.35 in pre-market trading [3]. - Bread Financial Holdings Inc tumbled 8.3% to $73.72 [3]. - Himalaya Shipping Ltd dipped 5.7% to $8.72 [3]. - Mesoblast Ltd fell 5.1% to $19.90, despite a previous gain after reporting increased sales [3]. - American Express Co declined 5% to $357.00 [3]. - Lumentum Holdings Inc fell 4.7% to $335.00 [3]. - WPP PLC declined 4.5% to $22.63 [3]. - Citigroup Inc fell 4% to $116.50, with earnings results expected on January 14 [3].

Core Viewpoint - Stoke Therapeutics, Inc. is advancing its investigational medicine zorevunersen in collaboration with Biogen, targeting Dravet syndrome as a potential first-in-class disease-modifying treatment [1] Group 1: Company Overview - Stoke Therapeutics is focused on restoring protein expression through RNA medicine [1] - The company is developing zorevunersen as its lead investigational medicine [1] Group 2: Development Updates - The company announced accelerated timelines for the completion of enrollment in the clinical trial [1] - A Phase 3 data readout from the EMPEROR study is expected soon [1]

Core Insights - Oligonucleotide therapies are emerging as a significant breakthrough in the treatment of rare diseases, with over a dozen therapies approved globally and hundreds in clinical research, promising to benefit more patients in the future [1][14][15] Industry Developments - The global landscape has seen more than ten oligonucleotide therapies approved for rare diseases, providing new treatment options for conditions such as Amyotrophic Lateral Sclerosis (ALS), Duchenne Muscular Dystrophy (DMD), and Hemophilia [1][14] - There are currently over a hundred oligonucleotide therapies in clinical development targeting various rare diseases, including siRNA and antisense oligonucleotide (ASO) therapies [2][14] Recent Approvals and Innovations - In August, Ionis Pharmaceuticals received FDA approval for the LICA drug Dawnzera (donidalorsen) for preventing hereditary angioedema (HAE) attacks in patients aged 12 and older, marking it as the first RNA-targeted drug for HAE [4][18] - Ionis Pharmaceuticals and Sobi announced the approval of ASO drug Tryngolza (olezarsen) in the EU for treating genetically confirmed familial chylomicronemia syndrome (FCS) [4][19] - Alnylam Pharmaceuticals' siRNA therapy Amvuttra (vutrisiran) was approved by the FDA in March for treating patients with transthyretin amyloidosis with cardiomyopathy [5][19] Clinical Trial Progress - NS Pharma reported positive results from the long-term extension study of ASO therapy brogidirsen for DMD, showing effective exon 44 skipping and stable maintenance of motor function in patients [7][21] - RIBOMIC's umedaptanib pegol showed promising results in a Phase 2 trial for achondroplasia in children, with many patients experiencing improved height growth rates [7][21] - Ionis Pharmaceuticals' ASO therapy zilganersen demonstrated significant results in stabilizing walking speed in Alexander disease patients, with plans for a new drug application to the FDA in 2026 [8][22] WuXi TIDES Platform - WuXi TIDES has established an integrated solution for oligonucleotide and peptide therapies, covering custom synthesis, conjugation, process development, and CMC, facilitating the transition of innovative projects into clinical stages [1][11][26] - The platform offers comprehensive CRDMO services from drug discovery to commercial production, supporting high-throughput synthesis and custom synthesis for various oligonucleotides [11][26][27] Future Outlook - The company aims to continue leveraging its integrated CRDMO model to empower the development of various new drugs, including oligonucleotide therapies, to bring more effective treatments to patients [12][27]

Core Insights - Stoke Therapeutics, a biotech company focused on rare genetic diseases, experienced a notable insider sale by Chief Medical Officer Barry Ticho, who sold 5,358 shares for approximately $167,115 following significant share price gains in 2025 [1][8]. Company Overview - Stoke Therapeutics specializes in developing antisense oligonucleotide (ASO) medicines targeting severe genetic diseases, with lead candidates STK-001 for Dravet syndrome (currently in Phase I/IIa trials) and STK-002 for autosomal dominant optic atrophy (in preclinical stage) [5][7]. - As of December 5, 2025, the company's stock price was $31.19, with a market capitalization of $1.74 billion and a revenue of $205.63 million for the trailing twelve months (TTM) [4]. Financial Performance - The company reported $328.6 million in cash, cash equivalents, and marketable securities, alongside $183 million in year-to-date revenue, indicating a strong financial position expected to fund operations until 2028 [9]. Insider Activity - Barry Ticho's recent sale of shares, while smaller than his historical median sale, represented a larger proportion of his remaining holdings (21.30% compared to a long-term median of 6.84%), reflecting a decline in his available share base [6]. - The shares were sold at a weighted average price of approximately $31.19, closely aligning with recent trading levels, indicating minimal price slippage [6]. Market Context - Stoke Therapeutics' stock price has appreciated significantly, reaching a 52-week high of $38.69 on October 16, 2025, and remaining above $30 per share in December, driven by favorable clinical trial data and strategic collaborations, particularly with Biogen [8][9].

Group 1: Market Movements - Biotech stocks experienced significant fluctuations in after-hours trading, with several companies rebounding after substantial losses during regular sessions, driven by fresh clinical data, FDA designations, and financing announcements [1] - Stoke Therapeutics, Inc. (STOK) saw its stock rise to $33.95 (+11.42%) in post-market hours after closing at $30.47 (-7.67%), following positive data presentations with Biogen regarding zorevunersen for Dravet syndrome [2] - Alpha Tau Medical Ltd. (DRTS) experienced a notable increase in share price, climbing to $5.30 (+25.26%) after closing at $4.23 (+8.74%), following the treatment of the first patient in its pilot study for recurrent glioblastoma multiforme [3] Group 2: Company Announcements - Absci Corp. (ABSI) rose to $3.65 (+3.69%) after hours, building on a close of $3.52 (+2.03%), with no new announcements but previously reported first volunteer dosing in its Phase 1/2a HEADLINE study of ABS-201 [4] - Senti Biosciences, Inc. (SNTI) surged to $1.60 (+3.92%) after hours, despite a sharp decline to $1.54 (-35.56%) during regular trading, driven by the FDA granting RMAT designation to its investigational CAR-NK cell therapy for AML and other hematologic malignancies [5] - TuHURA Biosciences, Inc. (HURA) edged up to $1.18 (+0.85%) after hours, following a significant decline to $1.17 (-40.91%) at the close, announcing a registered direct offering of 9.4 million shares priced at $1.65 per share [6]

Core Insights - The BUTTERFLY study highlights the significant impact of Dravet syndrome on children's neurodevelopment and functioning, indicating a need for new disease-modifying treatments [1][3][5] Company Overview - Biogen Inc. is a leading biotechnology company focused on innovative science to develop new medicines and create value for shareholders [8] - Stoke Therapeutics specializes in RNA medicine aimed at restoring protein expression, with its lead candidate zorevunersen under evaluation for Dravet syndrome [10] Study Findings - The BUTTERFLY study involved children and adolescents aged 2 to 18, assessing the effects of Dravet syndrome on neurodevelopment over two years [2][7] - Results showed that neurodevelopment plateaued at approximately two years of age, leading to a widening gap compared to neurotypical peers [5] - Major motor seizure frequency increased by 10.6% over the study period, with an average of 14.3 seizures per 28 days at baseline [5] Disease Characteristics - Dravet syndrome is characterized by recurrent seizures and significant cognitive and behavioral impairments, primarily caused by mutations in the SCN1A gene [4][6] - Over 90% of patients continue to experience seizures despite treatment with available anti-seizure medicines, leading to a poor quality of life [4][6] Future Implications - The findings from the BUTTERFLY study provide a baseline for understanding the potential impact of future disease-modifying therapies for Dravet syndrome [3][5]

Summary of Stoke Therapeutics FY Conference Call Company Overview - **Company**: Stoke Therapeutics (NasdaqGS:STOK) - **Industry**: Biotechnology, focusing on genetic diseases, specifically Dravet syndrome and other haploinsufficient diseases Key Points and Arguments Leadership Transition - Ian Smith transitioned from interim CEO to full-time CEO, having been associated with Stoke for nearly three years, including roles as a board member and advisor [2][3] Product and Pipeline - The primary focus is on a treatment for Dravet syndrome, a genetic disorder characterized by severe seizures due to a lack of NAV1.1 protein in the brain, caused by a mutated SCN1A gene [6][10] - The treatment aims to upregulate the NAV1.1 protein, addressing the root cause of the disease, leading to significant reductions in seizure frequency (up to 80-85% median reduction) and potential improvements in neurodevelopment [10][11] - The company is currently in Phase 3 trials, with a pipeline that includes other haploinsufficient diseases in Phase 1 or preclinical stages [4][6] Clinical Data and Efficacy - The treatment has shown sustained and durable reductions in seizures over nearly four years, which is unique compared to traditional anti-seizure medications [10][14] - Cognitive and behavioral improvements have been observed, with children showing enhanced communication and motor skills as measured by the Vineland 3 score [11][12] - The safety profile is generally well-tolerated, with 90% of patients from the Phase 1/2 study continuing into the open-label extension (OLE) study [13][14] Phase 3 Study Details - The Phase 3 study includes a six-week screening period, with a primary endpoint focused on seizure reduction at week 28 and secondary endpoints at week 52 [19][20] - The study is well-powered with a 90% confidence level for a 0.01 result, and over 25 patients have been dosed so far [20][23] - Full enrollment of 170 patients is expected by the second half of 2026, with data readout anticipated in the second half of 2027 [23][24] Regulatory and Commercial Strategy - The company received breakthrough therapy designation from the FDA for the treatment of Dravet syndrome in December 2024, acknowledging the safety and efficacy profile [25][26] - A multidisciplinary meeting with the FDA is scheduled for December to discuss the drug's mechanism of action and safety data, with the potential to expedite the approval pathway [25][27] - The commercial opportunity for Dravet syndrome is significant, with an estimated 15,000 to 20,000 diagnosed patients in the U.S. and a similar number outside the U.S. [31][32] Other Programs - The company is also developing a treatment for Autosomal Dominant Optic Atrophy (ADOA) in Phase I, targeting the OPA1 gene to improve mitochondrial function and vision [34][35] - A preclinical program for SYNGAP1, which involves seizures and neurodevelopment issues, is expected to have a development candidate by early 2026 [37] Financial Health - The company reported a strong financial position with approximately $400 million in cash, expected to fund operations through mid-2028, including the Phase 3 study and other programs [38] Additional Important Information - The treatment's administration involves lumbar puncture, which may lead to transient elevations in cerebrospinal fluid (CSF) protein, but no clinical manifestations have been observed [15][16] - The company is focused on educating the advocacy community and key opinion leaders to drive demand for the study [23][24]