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IPO Profile

Taysha Gene Therapies, Inc. (TSHA)

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We are a patient-centric gene therapy company focused on developing and commercializing AAV-based gene therapies for the treatment of monogenic diseases of the central nervous system in both rare and large patient populations. We were founded in partnership with The University of Texas Southwestern Medical Center, or UT Southwestern, to develop and commercialize transformative gene therapy treatments. Together with UT Southwestern, we are advancing a deep and sustainable product portfolio of 18 gene therapy product candidates, with exclusive options to acquire four additional development programs at no cost. By combining our management team’s proven experience in gene therapy drug development and commercialization with UT Southwestern’s world-class gene therapy research capabilities, we believe we have created a powerful engine to develop transformative therapies to dramatically improve patients’ lives. We expect to initiate a Phase 1/2 clinical trial of TSHA-101 for the treatment of GM2 gangliosidosis, under a Clinical Trial Application, or CTA, in Canada by the end of 2020. In addition, we plan to submit investigational new drug applications, or INDs, for four programs to the U.S. Food and Drug Administration, or the FDA, by the end of 2021: TSHA-101, TSHA-102 (Rett syndrome), TSHA-103 (SLC6A1 haploinsufficiency) and TSHA-104 (SURF1 deficiency). We are also developing TSHA-118 for the treatment of CLN1 disease (or infantile Batten disease) and intend to initiate a Phase 1/2 clinical trial of TSHA-118 under a currently open IND. In addition to our product pipeline candidates, we are building a platform of next-generation technologies to optimize key components of our AAV-based gene therapies, including redosing, transgene regulation and capsid development.

Our pipeline consists of AAV9-based gene therapies intended to be delivered using the intrathecal route of administration. Our manufacturing process utilizes suspension HEK293 cell culture that is highly scalable from the preclinical stages of development through commercialization. We believe this combination of AAV9, intrathecal delivery and suspension cell culture will accelerate our product development timelines while enhancing our probability of successfully developing and commercializing safe, efficacious therapies for patients.

We use an adeno-associated virus serotype 9, or AAV9, capsid, to deliver therapeutic genes engineered to replace a mutated gene, enhance the expression of a silenced gene or decrease the expression of a gene, depending on the underlying biology of the specific disease. In preclinical studies, the AAV9 capsid has been observed to have significantly higher transduction efficiency in cells of the central nervous system, or CNS, in comparison to AAV serotypes used in other gene therapy programs. In third-party clinical trials, AAV9 has been shown to be well tolerated, and in 2019, Zolgensma was approved as the first systemic gene therapy utilizing AAV9 for the treatment of spinal muscular atrophy, or SMA, Type 1, a severe neurodegenerative disease.

We use intrathecal administration, which involves direct delivery of our gene therapies to the cerebrospinal fluid, or CSF, to facilitate optimal biodistribution and cell transduction within the CNS. Because the CNS is immune-privileged, intrathecal gene therapy may be administered even in the presence of pre-existing antibodies to AAV. We believe that intrathecal delivery of AAV9-based gene therapies provides the highest likelihood of achieving transformative efficacy for patients suffering from severe, life-threatening neurological diseases.

Investors Pre-IPO Holdings (%)
Google Ventures 30
Intel Ventures 20
Patricoff Ventures 5
Kleiner Perkins 18

Deal Highlights

Deal Tracker

Filing Date   24 Sep, 2020
Price Date   24 Sep, 2020
Offer Price $20.00
Offer Size 7M
Look Up Expiry Date   24 Mar, 2021
Earnings Release Date   Nov 1, 2018