EXPLANATORY NOTE
The sole purpose of this Amendment No. 1 to this Current Report on Form 8-K is to file Exhibits 10.1, 10.2 and 10.3 which were omitted from the original filing. This Amendment No. 1 to this Form 8-K speaks as of the original filing date of the Form 8-K, does not reflect events that may have occurred subsequent to the original filing date and does not modify or update in any way disclosures made in the original Form 8-K except to file Exhibits 10.1, 10.2 and 10.3.
Item 1.01 | Entry into a Material Definitive Agreement. |
Option Agreement
On October 21, 2022 (the “Effective Date”), Taysha Gene Therapies, Inc. (the “Company”) entered into an Option Agreement (the “Option Agreement”) with Audentes Therapeutics, Inc. (d/b/a Astellas Gene Therapy) (“Astellas”).
TSHA-120 Giant Axonal Neuropathy
Under the Option Agreement, the Company granted to Astellas an exclusive option to obtain an exclusive, worldwide, royalty and milestone-bearing right and license (A) to research, develop, make, have made, use, sell, offer for sale, have sold, import, export and otherwise exploit (collectively, “Exploit”) the product known, as of the Effective Date, as TSHA-120 (the “120 GAN Product”) and any backup products with respect thereto for use in the treatment of giant axonal neuropathy (“GAN”) or any other gene therapy product for use in the treatment of GAN that is controlled by the Company or any of its affiliates or with respect to which the Company or any of its affiliates controls intellectual property rights covering the Exploitation thereof (“GAN Product”) and (B) under any intellectual property rights controlled by the Company or any of its affiliates with respect to such Exploitation (the “GAN Option”). Subject to certain extensions, the GAN Option is exercisable from the Effective Date through a specified period of time following Astellas’ receipt of (i) the formal minutes from the Type B end-of-Phase 2 meeting between the Company and the U.S. Food and Drug Administration (“FDA”) in response to the Company’s meeting request sent to the FDA on September 19, 2022 for the 120 GAN Product (the “Type B end-of-Phase 2 Meeting”), (ii) all written feedback from the FDA with respect to the Type B end-of-Phase 2 Meeting, and (iii) all briefing documents sent by the Company to the FDA with respect to the Type B end-of-Phase 2 Meeting.
TSHA-102 Rett Syndrome
Under the Option Agreement, the Company also granted to Astellas an exclusive option to obtain an exclusive, worldwide, royalty and milestone- bearing right and license (A) to Exploit any Rett Product (as defined below), and (B) under any intellectual property rights controlled by the Company or any of its affiliates with respect to such Exploitation (the “Rett Option” and together with the GAN Option, each, an “Option”). Subject to certain extensions, the Rett Option is exercisable from the Effective Date through a specified period of time following Astellas’ receipt of (1) certain clinical data from the female pediatric trial and (2) certain specified data with respect to TSHA-102 (such period, the “Rett Option Period”) related to (i) the product known, as of the Effective Date, as TSHA-102 and any backup products with respect thereto for use in the treatment of Rett syndrome (“Rett”), and (ii) any other gene therapy product for use in the treatment of Rett that is controlled by the Company or any of its affiliates or with respect to which the Company or any of its affiliates controls intellectual property rights covering the Exploitation thereof (“Rett Product”).
The parties have agreed that, if Astellas exercises an Option, the parties will, for a specified period, negotiate a license agreement in good faith on the terms and conditions outlined in the Option Agreement, including payments by Astellas of a to be determined upfront payment, certain to be determined milestone payments, and certain to be determined royalties on net sales of GAN Products and/or Rett Products, as applicable.
Change of Control
During the Rett Option Period, the Company has agreed to (A) not solicit or encourage any inquiries, offers or proposals for, or that could reasonably be expected to lead to, a Change of Control (as defined in the Option Agreement), or (B) otherwise initiate a process for a potential Change of Control, in each case, without first notifying Astellas and offering Astellas the opportunity to submit an offer or proposal to the Company for a transaction that would result in a Change of Control. If Astellas fails or declines to submit any such offer within a specified period after the receipt of such notice, the Company will have the ability to solicit third party bids for a Change of Control transaction. If Astellas delivers an offer to the Company for a transaction that would result in a Change of Control, the Company and Astellas will attempt to negotiate in good faith the potential terms and conditions for such potential transaction that would result in a Change of Control for a specified period, which period may be shortened or extended by mutual agreement.
As partial consideration for the rights granted to Astellas under the Option Agreement, Astellas will pay the Company a one-time payment in the amount of $20.0 million (the “Upfront Payment”) within 30 days after receipt of an invoice for such payment, which invoice will be delivered by the Company on or after the Effective Date. Astellas or any of its affiliates shall have the right, in its or their discretion and upon written notice to the Company, to offset the amount of the Upfront Payment (in whole or in part, until the full amount of the Upfront Payment has been offset) against (a) any payment(s) owed to the Company or any of its affiliates (or to any third party on behalf of the Company) under or in connection with any license agreement entered into with respect to any GAN Product or Rett Product, including, any upfront payment, milestone payment or royalties owed to the Company or any of its affiliates (or to any third party on behalf of the Company) under or in connection with any such license agreement or