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License and Collaboration Arrangements | 3 Months Ended
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Mar. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
License and Collaboration Arrangements | 4. License and Collaboration Arrangements Out-License Agreements Zai Lab Entasis entered into a license and collaboration agreement with Zai Lab (Shanghai) Co., Ltd. (“Zai Lab”) (Nasdaq: ZLAB), pursuant to which Zai Lab licensed exclusive rights to durlobactam and SUL-DUR, in the Asia-Pacific region (“the Zai Agreement”). Under the terms of the Zai Agreement, Zai Lab will fund most of the registrational clinical trial costs in China for SUL-DUR, with the exception of Phase 3 patient drug supply of licensed products. Zai Lab will conduct development activities and plan and obtain regulatory approval in a specified number of countries in the Asia-Pacific region beyond China after receipt of regulatory approval of a licensed product in China. Zai Lab is also solely responsible for commercializing licensed products in the Asia-Pacific region and will commercialize licensed products for which it has obtained regulatory approval. We are obligated to supply Zai Lab with the licensed products for clinical development and for commercial use for a certain period unless Zai Lab notifies otherwise. Zai Lab may take over manufacturing responsibilities for its own commercialization activities within a specified time period following the effective date of the Zai Agreement. We are eligible to receive up to an aggregate of $91.0 million in research and development support payments and development, regulatory and sales milestone payments related to SUL-DUR, imipenem and other combinations with the licensed products. Zai Lab will pay us a tiered royalty equal to from a high-single digit to low-double digit percentage based on annual net sales of licensed products in the territory, subject to specified reductions for the market entry of competing products, loss of patent coverage of licensed products and for payments owed to third parties for additional rights necessary to commercialize licensed products in the territory. Payments received for research support and reimbursable clinical trial costs are recorded as a reduction to research and development expense during the period in which the qualifying expenses are incurred. Such amounts recorded for the three months ended March 31, 2025 and 2024 were not material. SUL-DUR was approved by China’s National Medical Products Administration in May 2024 and was launched by Zai Lab in mainland China in January 2025. Royalties under this arrangement, based on the product sales for the three months ended March 31, 2025, was $0.5 million. In April 2024, we entered into an amendment to the Zai Agreement (the “Amended Zai Agreement”), pursuant to which Zai Lab shall share costs associated with certain new manufacturing and technology transfer activities for XACDURO® (the “Services”), which were not contemplated under the Zai Agreement and are crucial for regulatory approval in the Asia-Pacific region. We determined that the Amended Zai Agreement falls within the scope of ASC 606 and Zai Lab is a customer in this arrangement as the Services are an output of our ordinary activities. We have determined that the Services represent the only performance obligation and are distinct from the performance obligations under the original Zai Agreement. In addition, the costs we incur in performing the Services most accurately depict the transfer of value to Zai Lab and maximize the use of observable inputs for measuring progress, therefore, we recognize revenue from this arrangement as the costs related to Services are incurred. We recognized $0.5 million in license revenue for the three months ended March 31, 2025 under the Amended Zai Agreement. Amounts outstanding under this agreement of $0.6 million and $1.6 million are included in “Accounts receivable” in our unaudited condensed consolidated balance sheets as of March 31, 2025 and December 31, 2024, respectively. In June 2024, we entered into an interim supply agreement with Zai Lab, under which Zai Lab shall purchase XACDURO® inventory (the “Supplied Inventory”) for their commercial use. We have determined that this agreement falls within the scope of ASC 606. Zai Lab is a customer and the Supplied Inventory is an output of our ordinary activities. We have also determined that the Supplied Inventory represents the only performance obligation and is distinct from the performance obligations under the Zai agreements discussed above. Furthermore, we evaluated that the performance obligation is satisfied over time and that a cost-to-cost measure of progress would be the measure of progress that most accurately depicts the transfer of value to Zai Lab and maximizes the use of observable inputs to measure progress. We recognized $0.8 million in net product sales for the Supplied Inventory for the three months ended March 31, 2025. Amounts outstanding under this agreement of $0.6 million are included in “Accounts receivable” in our unaudited condensed consolidated balance sheets as of March 31, 2025 and December 31, 2024. We have also received advance payments of $8.6 million and $5.3 million as of March 31, 2025, and December 31, 2024, respectively, from Zai Lab for additional inventory purchases. These amounts were recorded as other accrued liabilities and will be recognized as revenue when a supply agreement is finalized and performance obligation is satisfied. We also entered into a manufacturing stage transfer agreement with Zai Lab in June 2024, which was amended in September 2024 (the “Zai Manufacturing Stage Transfer Agreement”). Pursuant to this agreement, Entasis shall provide assistance to Zai Lab for building out Zai Lab's manufacturing site for XACDURO® and be compensated for Entasis' services and associated costs. We have determined this agreement falls within the scope of ASC 606. Zai Lab is a customer and the transfer service is an output of our ordinary activities and represents our only performance obligation, which is distinct from the performance obligations under the Zai agreements. Furthermore, we have evaluated that the performance obligation is satisfied over time and that the costs we incur in performing the transfer service most accurately depicts the transfer of value to Zai Lab and maximizes the use of observable inputs for measuring progress, therefore, we recognize revenue from this arrangement as the services are provided and the costs are incurred. We did not recognize license revenue for the three months ended March 31, 2025 under the Zai Manufacturing Stage Transfer Agreement. GARDP Entasis entered into a collaboration agreement with the Global Antibiotic Research and Development Partnership (“GARDP”) for the development, manufacture and commercialization of the product candidate zoliflodacin in certain countries (“the GARDP Collaboration Agreement”). Under the terms of the GARDP Collaboration Agreement, GARDP will use commercially reasonable endeavors to perform and fully fund the Phase 3 registrational trial, including the manufacture and supply of the product candidate containing zoliflodacin, in uncomplicated gonorrhea. We recorded immaterial reimbursements from GARDP under this agreement as reduction to research and development expense during the periods presented. In addition, under the GARDP Collaboration Agreement, GARDP was granted a worldwide, fully paid, exclusive and royalty-free license, with the right to sublicense, to use our zoliflodacin technology in connection with GARDP’s development, manufacture and commercialization of zoliflodacin in low-income and specified middle-income countries. We retained commercial rights in all other countries worldwide, including the major markets in North America, Europe and Asia-Pacific. We also retained the right to use and grant licenses to our zoliflodacin technology to perform our obligations under the GARDP Collaboration Agreement and for any purpose other than gonorrhea or community-acquired indications. If we believe that the results of the Phase 3 registrational trial of zoliflodacin would be supportive of an application for marketing approval, we are obligated to use our best efforts to file an application for marketing approval with the FDA within six months of the completion of the trial and to use commercially reasonable endeavors to file an application for marketing approval with the European Medicines Agency (“EMA”). Each party is responsible for using commercially reasonable efforts to obtain marketing authorizations for the product candidate in their respective territories. PAION Pharma GmbH Pursuant to the PAION AG and PAION Deutschland GmbH (together and individually “PAION”) License, La Jolla granted PAION an exclusive license to commercialize GIAPREZA® and XERAVA® in the European Economic Area, the United Kingdom and Switzerland (collectively, the “PAION Territory”). PAION is currently a subsidiary of the Humanwell Healthcare Group. We are entitled to receive potential commercial milestone payments of up to $109.5 million and double-digit tiered royalty payments. Royalties payable in a given jurisdiction under the PAION License is subject to reduction on account of generic competition and after patent expiration in that jurisdiction. Pursuant to the PAION License, PAION will be solely responsible for the future development and commercialization of GIAPREZA® and XERAVA® in the PAION Territory. PAION is required to use commercially reasonable efforts to commercialize GIAPREZA® and XERAVA® in the PAION Territory. Royalty revenue recognized under this agreement for the three months ended March 31, 2025 and 2024 was not material. La Jolla also entered into the PAION commercial supply agreement (the “PAION Supply Agreement”) whereby La Jolla supplies PAION a minimum quantity of GIAPREZA® and XERAVA® until the earlier of July 13, 2027, or until a new supply agreement is executed. During the term of the supply agreement, we are reimbursed for direct and certain indirect manufacturing costs at cost. We recognized $0.6 million in cost reimbursements under this agreement for the three months ended March 31, 2025. Cost reimbursements recognized under this agreement for the three months ended March 31, 2024 were not material. Everest Medicines Limited Pursuant to the Everest Medicines Limited (“Everest”) License, La Jolla granted Everest an exclusive license to develop and commercialize XERAVA® for the treatment of complicated intra-abdominal infections (“cIAI”) and other indications in mainland China, Taiwan, Hong Kong, Macau, South Korea, Singapore, the Malaysian Federation, the Kingdom of Thailand, the Republic of Indonesia, the Socialist Republic of Vietnam and the Republic of the Philippines (collectively, the “Everest Territory”). We are eligible to receive sales milestone payments of up to an aggregate of $20.0 million under this agreement. We are also entitled to receive tiered royalties from Everest at percentages in the low double digits on sales, if any, in the Everest Territory of products containing eravacycline. Royalties are payable with respect to each jurisdiction in the Everest Territory until the latest to occur of: (i) the last-to-expire of specified patent rights in such jurisdiction in the Everest Territory; (ii) expiration of marketing or regulatory exclusivity in such jurisdiction in the Everest Territory; or (iii) 10 years after the first commercial sale of a product in such jurisdiction in the Everest Territory. Royalty revenue from Everest recognized for the three months ended March 31, 2025 and 2024 was not material. La Jolla also entered into the Everest commercial supply agreement (the “Everest Supply Agreement”) whereby La Jolla will supply Everest a minimum quantity of XERAVA® and will transfer to Everest certain XERAVA®-related manufacturing know-how. Under the Everest Supply Agreement, we are reimbursed for direct and certain indirect manufacturing costs at 110% of cost. Revenue recognized under the Everest Supply Agreement for the three months ended March 31, 2025 was $1.0 million. Revenue recognized under the Everest Supply Agreement for the three months ended March 31, 2024 was not material. In-License Agreements Basilea In December 2024, we entered into an exclusive distribution and license agreement with Basilea, under which we were granted exclusive marketing rights to ZEVTERA® in the U.S. The agreement will remain in effect through the expiration of ZEVTERA®’s market exclusivity in the U.S. in 2034 (the “initial term”)and is subject to automatic renewal unless terminated by either party with prior notice. We paid an upfront fee of $4.0 million, which was recognized as an intangible asset and is being amortized over the initial term of the agreement. Under the agreement, we are required to exclusively purchase ZEVTERA® (in pre-packaging and labeling form) from Basilea for the duration of the term. We are also obligated to pay Basilea tiered royalties ranging from the high-teens to mid-twenties, as well as tiered milestone payments based on annual net sales in the U.S. We anticipate commercialization of ZEVTERA® in mid-2025 and, as a result, did not incur any royalty or sales milestone payments under this agreement during three months ended March 31, 2025. George Washington University Pursuant to the George Washington University License (the “GW License”), GW exclusively licensed to La Jolla certain intellectual property rights relating to GIAPREZA®, including the exclusive rights to certain issued patents and patent applications covering GIAPREZA®. Under the GW License, we are obligated to use commercially reasonable efforts to develop, commercialize, market and sell GIAPREZA®. We are obligated to pay a 6% royalty on net sales of GIAPREZA® and 15% on payments received from sublicensees. The obligation to pay royalties under the GW License extends through the last-to-expire patent covering GIAPREZA®. Amounts recognized under the GW License for the three months ended March 31, 2025 were $1.1 million. Amounts recognized under the GW License for the three months ended March 31, 2024 were not material. Harvard University Pursuant to the Harvard University (“Harvard”) License, Harvard exclusively licensed to La Jolla certain intellectual property rights relating to tetracycline-based products, including XERAVA®, including the exclusive rights to certain issued patents and patent applications covering such products. Under the Harvard License, we are obligated to use commercially reasonable efforts to develop, commercialize, market and sell tetracycline-based products, including XERAVA®. For each product covered by the Harvard License, we are obligated to make certain payments for the following: (i) up to approximately $15.1 million upon the achievement of certain clinical development and regulatory milestones; (ii) a 5% royalty on direct U.S. net sales of XERAVA®; (iii) a single-digit tiered royalty on direct ex-U.S. net sales of XERAVA®, starting at a minimum royalty rate of 4.5%, with step-ups to a maximum royalty of 7.5% based on the achievement of annual net product sales thresholds; and (iv) 20% on payments received from sublicensees. The obligation to pay royalties under this agreement extends through the last-to-expire patent covering tetracycline-based products, including XERAVA®. Amounts recognized under the Harvard License for the three months ended March 31, 2025 and 2024 were not material. Business Transfer and Subscription Agreement with AstraZeneca Entasis entered into a Business Transfer and Subscription Agreement with AstraZeneca, AstraZeneca UK Limited and AstraZeneca Pharmaceuticals LP (collectively, “AstraZeneca”) (the “AstraZeneca Agreement”) in 2015, which was amended and restated through 2018, pursuant to which Entasis obtained, among other things, worldwide rights to durlobactam and zoliflodacin. Under the AstraZeneca Agreement, we are obligated to pay AstraZeneca a one-time milestone payment of $5.0 million within three months of achieving a specified cumulative net sales milestone for durlobactam. We are also obligated to pay AstraZeneca a one-time milestone payment of $10.0 million within two years of achieving the first commercial sale of zoliflodacin. Additionally, we are obligated to pay AstraZeneca tiered, single-digit royalties on the annual worldwide net product sales of durlobactam and, the lesser of tiered, single-digit royalties on the worldwide annual net sales of zoliflodacin and a specified share of the royalties we receive from sublicensees of zoliflodacin. Royalties on sales of zoliflodacin do not include sales by GARDP in low-income and specified middle-income countries as discussed above. Our obligation to make these royalty payments expires with respect to each product on a country-by-country basis upon the later of (i) the 10-year anniversary of the first commercial sale of a product in each such country or (ii) when the last patent right covering a product expires in each such country. The royalty expense in respect of durlobactam arising from our net product sales of XACDURO® for the three months ended March 31, 2025 and 2024 was not material.

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