Clinical Trials and Designations - Taysha Gene Therapies has completed dosing of 12 patients in Part A of the REVEAL trials, with no treatment-related serious adverse events reported[164]. - The pivotal Part B trial will enroll 15 females aged 6 to <22 years with a low likelihood (0% to <6.7%) of regaining developmental milestones[165]. - The FDA has granted Breakthrough Therapy designation to TSHA-102 based on positive clinical evidence from 12 patients treated in Part A of the REVEAL trials[169]. - The REVEAL pivotal trial protocol includes a 6-month interim analysis that may support a Biologics License Application submission[166]. - The company has received orphan drug designation and Fast Track Designation from the FDA for TSHA-102 for the treatment of Rett syndrome[168]. - The REVEAL pivotal trial will enroll 15 females aged 6 to <22 years, with a minimum success threshold of a 33% response rate (5 out of 15 patients) for developmental milestone achievement[181]. - In the ongoing REVEAL Phase 1/2 trials, 100% of 10 patients treated with TSHA-102 gained or regained one or more developmental milestones, with a 0% likelihood of achievement without treatment[187]. - A total of 22 developmental milestones were achieved across the 10 patients, with the high dose cohort achieving a 100% responder rate, 25% faster than the low dose cohort[189]. - A supplemental data analysis revealed that patients gained 165 additional functional skills/improvements across core disease characteristics post-TSHA-102 treatment[192]. - The high dose cohort consistently outperformed the low dose cohort across multiple outcome measures, including R-MBA and CGI-I, demonstrating dose-dependent effects deepening over time[198]. - TSHA-102 was generally well tolerated, with no treatment-related serious adverse events reported among 12 patients aged 6-21 years[199]. Financial Performance and Funding - Taysha Gene Therapies has raised an aggregate of $911.0 million through various funding activities, including an IPO and follow-on offerings[172]. - As of September 30, 2025, Taysha Gene Therapies reported a net loss of $81.1 million and an accumulated deficit of $683.4 million[174]. - Revenue for the three months ended September 30, 2025, was $0, compared to $1,788,000 for the same period in 2024[230]. - Research and development expenses for the three months ended September 30, 2025, were $25,745,000, an increase from $14,946,000 in 2024[230]. - The total operating expenses for the three months ended September 30, 2025, were $34,024,000, compared to $27,686,000 in 2024[230]. - The net loss for the three months ended September 30, 2025, was $32,733,000, compared to a net loss of $25,524,000 in 2024[230]. - The company anticipates an increase in general and administrative expenses due to costs associated with compliance and public company operations[228]. - The company has not recognized any revenue from product sales to date and does not expect to generate revenue from product sales in the foreseeable future[221]. - Revenue related to the Astellas Transactions was $4.3 million for the nine months ended September 30, 2025, a decrease of 31.8% compared to $6.3 million for the same period in 2024[239]. - Research and development expenses increased to $61.5 million for the nine months ended September 30, 2025, up 21.5% from $50.7 million in 2024[240]. - General and administrative expenses rose to $25.0 million for the nine months ended September 30, 2025, an increase of 12.1% compared to $22.3 million in 2024[241]. - The net loss for the nine months ended September 30, 2025, was $81.1 million, compared to a net loss of $70.5 million for the same period in 2024, reflecting a 15.0% increase in losses[238]. - Interest income increased to $6.4 million for the nine months ended September 30, 2025, up 22.5% from $5.2 million in 2024[244]. - As of September 30, 2025, the company had cash and cash equivalents of $297.3 million, having raised an aggregate of $911.0 million in gross proceeds from equity financings[245]. - The company raised gross proceeds of $150.0 million from the August 2023 Private Placement, with net proceeds of $140.3 million after expenses[256]. - For the nine months ended September 30, 2025, the company reported a net cash used in operating activities of $66.4 million, primarily due to a net loss of $81.1 million[267]. - The company generated net cash provided by financing activities of $225.0 million during the nine months ended September 30, 2025, mainly from the May 2025 Offering[270]. - The total net proceeds from the May 2025 Offering were $215.6 million after deducting underwriting discounts and other expenses[258]. - The company has a material cash requirement of approximately $25.2 million in cancellable purchase obligations to clinical trial vendors[261]. Agreements and Collaborations - The company has entered into a research, collaboration, and license agreement with UT Southwestern, obtaining exclusive, worldwide, royalty-free licenses for certain patent rights[202]. - The company is required to use commercially reasonable efforts to develop and commercialize at least one licensed product under the UT Southwestern Agreement[202]. - As of September 30, 2025, there are no outstanding payments due for terminated sponsored research agreements with UT Southwestern[203]. - The company issued 2,179,000 shares of common stock to UT Southwestern as part of the UT Southwestern Agreement[204]. - The company paid a one-time upfront license fee of $3.0 million to Abeona for the CLN1 Agreement and is obligated to pay up to $26.0 million in regulatory-related milestones and up to $30.0 million in sales-related milestones per licensed product[209]. - The company is obligated to use commercially reasonable efforts to develop and commercialize at least one product in the United States under the Abeona agreements[208][213]. - Astellas elected not to exercise the GAN Option, leading to recognized revenue related to this expiration during Q3 2023[218]. Regulatory and Compliance - The FDA provided written alignment on key elements of the pivotal Part B REVEAL clinical trial design, which is expected to expedite the BLA submission for TSHA-102 by at least two full quarters[180]. - The company qualifies as a "smaller reporting company" with a market value of shares held by non-affiliates below $700 million and annual revenue under $100 million[278]. - The company may continue to be classified as a smaller reporting company if market value remains below $250 million or annual revenue stays under $100 million while market value is below $700 million[278]. - As a smaller reporting company, the company can present only the two most recent fiscal years of audited financial statements in its Annual Report on Form 10-K[278]. - The company is exempt from certain disclosure requirements, including auditor attestation requirements under Section 404 of the Sarbanes-Oxley Act[280]. - The company has reduced disclosure obligations regarding executive compensation in periodic reports and proxy statements[280]. - The company is exempt from holding non-binding advisory votes on executive compensation or golden parachute arrangements[280]. - The company is not required to provide quantitative and qualitative disclosures about market risk as a smaller reporting company[279]. - The company benefits from exemptions related to the communication of critical audit matters in the auditor's report on financial statements[280]. Future Outlook - The company anticipates needing substantial additional funding for ongoing research and development, manufacturing, and commercialization efforts[262]. - The company expects to incur significant commercialization expenses if any of its product candidates receive regulatory approval[259]. - The company has not generated any revenue from the commercial sale of approved drug products and does not expect to do so for at least the next few years[259]. - The company has not generated any revenue from product sales since inception and continues to incur significant operating losses[245].
Taysha Gene Therapies(TSHA) - 2025 Q3 - Quarterly Report