Note 13 - License and Collaboration Agreements	9 Months Ended
Sep. 30, 2022
Notes to Financial Statements
Collaborative Arrangement Disclosure [Text Block]	Note 13 – License and Collaboration Agreements *Agenus Agreement* In November 2019, the Company entered into a license agreement with Agenus Inc., pursuant to which Agenus granted to the Company an exclusive, worldwide (not including Argentina, Brazil, Chile, Colombia, Peru, Venezuela and their respective territories and possessions), royalty-bearing, sublicensable license under Agenus’s intellectual property rights to develop, make, use, sell, import, and otherwise commercialize products incorporating a proprietary monoclonal antibody of Agenus known as AGEN1884 (zalifrelimab), an anti-CTLA-4 antagonist, for the treatment of cancers of the urinary tract via intravesical delivery. Initially, the Company plans to develop AGEN1884 in combination with UGN-201 for the treatment of high-grade NMIBC. Pursuant to the license agreement, the Company paid Agenus an upfront fee of $10.0 million and has agreed to pay Agenus up to $115.0 million upon achieving certain clinical development and regulatory milestones, up to $85.0 million upon achieving certain commercial milestones, and royalties on net sales of licensed products in the 14%-20% range. The Company will be responsible for all development and commercialization activities. Under the terms of the license agreement, Agenus has agreed to use commercially reasonable efforts to supply AGEN1884 to the Company for use in preclinical studies or clinical trials. Unless earlier terminated in accordance with the terms of the license agreement, the license agreement will expire on a product-by-product and country-by-country basis at the later of (a) the expiration of the last to expire valid claim of a licensed patent right that covers the licensed product in such country or (b) 15 years after the first commercial sale of the licensed product in such country. The Company may terminate the license agreement for convenience upon 180 days’ written notice to Agenus. Either party may terminate the license agreement upon 60 days’ notice to the other party if, prior to the first commercial sale of a licensed product, the Company substantially ceases to conduct development activities of the licensed products for nine consecutive months (and during such period, Agenus has complied with its obligations under the license agreement) other than in response to a requirement of an applicable regulatory authority or an event outside of the Company’s control. In addition, either party may terminate the license agreement in the event of an uncured material breach of the other party. *MD Anderson Agreement* In January 2021, the Company announced that it entered into a three-year strategic research collaboration agreement with MD Anderson focusing on the sequential use of UGN-201 and UGN-301 as an investigational treatment for high-grade NMIBC. Under the terms of the agreement, MD Anderson and the Company will collaborate on the design and conduct of non-clinical and clinical studies with oversight from a joint steering committee. The Company will provide funding, developmental candidates, and other support. Pursuant to the agreement, the Company makes bi-annual payments to MD Anderson to fund the collaboration. As of September 30, 2022, the Company has made payments to MD Anderson totaling $2.0 million recognized evenly over the associated period through research and development expenses. In July 2022, the Company determined that it had achieved the objectives that it established when the agreement was initiated, and notified MD Anderson that it was exercising its right to conclude the collaboration in 2022 as the Company did not foresee initiating further development activities as part of the collaboration, although the Company will continue to collaborate on existing joint projects. As a result of this notification, the Company is not responsible for any further fixed bi-annual funding payments, although the Company will be responsible for costs related to existing joint projects that exceed the payments already made to MD Anderson.

Note 13 - License and Collaboration Agreements

9 Months Ended

Sep. 30, 2022

Collaborative Arrangement Disclosure [Text Block]

Note 13 – License and Collaboration Agreements

Agenus Agreement

In November 2019, the Company entered into a license agreement with Agenus Inc., pursuant to which Agenus granted to the Company an exclusive, worldwide (not including Argentina, Brazil, Chile, Colombia, Peru, Venezuela and their respective territories and possessions), royalty-bearing, sublicensable license under Agenus’s intellectual property rights to develop, make, use, sell, import, and otherwise commercialize products incorporating a proprietary monoclonal antibody of Agenus known as AGEN1884 (zalifrelimab), an anti-CTLA-4 antagonist, for the treatment of cancers of the urinary tract via intravesical delivery. Initially, the Company plans to develop AGEN1884 in combination with UGN-201 for the treatment of high-grade NMIBC.

Pursuant to the license agreement, the Company paid Agenus an upfront fee of $10.0 million and has agreed to pay Agenus up to $115.0 million upon achieving certain clinical development and regulatory milestones, up to $85.0 million upon achieving certain commercial milestones, and royalties on net sales of licensed products in the 14%-20% range. The Company will be responsible for all development and commercialization activities. Under the terms of the license agreement, Agenus has agreed to use commercially reasonable efforts to supply AGEN1884 to the Company for use in preclinical studies or clinical trials.

Unless earlier terminated in accordance with the terms of the license agreement, the license agreement will expire on a product-by-product and country-by-country basis at the later of (a) the expiration of the last to expire valid claim of a licensed patent right that covers the licensed product in such country or (b) 15 years after the first commercial sale of the licensed product in such country. The Company may terminate the license agreement for convenience upon 180 days’ written notice to Agenus. Either party may terminate the license agreement upon 60 days’ notice to the other party if, prior to the first commercial sale of a licensed product, the Company substantially ceases to conduct development activities of the licensed products for nine consecutive months (and during such period, Agenus has complied with its obligations under the license agreement) other than in response to a requirement of an applicable regulatory authority or an event outside of the Company’s control. In addition, either party may terminate the license agreement in the event of an uncured material breach of the other party.

MD Anderson Agreement

In January 2021, the Company announced that it entered into a three-year strategic research collaboration agreement with MD Anderson focusing on the sequential use of UGN-201 and UGN-301 as an investigational treatment for high-grade NMIBC. Under the terms of the agreement, MD Anderson and the Company will collaborate on the design and conduct of non-clinical and clinical studies with oversight from a joint steering committee. The Company will provide funding, developmental candidates, and other support. Pursuant to the agreement, the Company makes bi-annual payments to MD Anderson to fund the collaboration. As of September 30, 2022, the Company has made payments to MD Anderson totaling $2.0 million recognized evenly over the associated period through research and development expenses. In July 2022, the Company determined that it had achieved the objectives that it established when the agreement was initiated, and notified MD Anderson that it was exercising its right to conclude the collaboration in 2022 as the Company did not foresee initiating further development activities as part of the collaboration, although the Company will continue to collaborate on existing joint projects. As a result of this notification, the Company is not responsible for any further fixed bi-annual funding payments, although the Company will be responsible for costs related to existing joint projects that exceed the payments already made to MD Anderson.