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Collaborations and License Agreements
9 Months Ended
Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Collaborations and License Agreements Collaborations and License Agreements
Collaboration Agreement
AstraZeneca
In December 2018, the Company entered into a clinical supply agreement (the “AstraZeneca Agreement”) with a wholly owned subsidiary of AstraZeneca to evaluate the safety and efficacy of AstraZeneca’s IMFINZI (durvalumab), a human monoclonal antibody directed against PD-L1, in combination with tivozanib as a first-line treatment or following bevacizumab and atezolizumab treatment for patients with advanced, unresectable HCC in an open-label, multi-center, randomized Phase 1b/2 clinical trial (the “DEDUCTIVE trial”). The Company serves as the study sponsor; each party contributes the clinical supply of its study drug; key decisions are made by both parties by consensus; and external study costs are otherwise shared equally. The Company and AstraZeneca have decided to close the second-line treatment of patients with advanced, unresectable HCC who have progressed after first-line bevacizumab and atezolizumab therapy, or cohort B, of the DEDUCTIVE trial, which was previously expected to be enrolled in the second half of 2022. The Company and AstraZeneca have decided to focus on data maturing from the first cohort of the trial, which includes patients with advanced, unresectable HCC who have not received prior systemic therapy for metastatic disease, or cohort A, of the DEDUCTIVE trial.
The Company is accounting for the joint development activities under the AstraZeneca Agreement as a joint risk-sharing collaboration in accordance with ASC 808 because both the Company and AstraZeneca are active participants in the oversight of the DEDUCTIVE trial via their participation on a joint steering committee and are exposed to significant risk and rewards in connection with the activity based on their obligation to share in the costs. AstraZeneca does not meet the definition of a “Customer,” thus the joint development activities under the AstraZeneca Agreement are not accounted for under ASC 606.
Payments from AstraZeneca with respect to its share of the external costs for the DEDUCTIVE trial incurred by the Company pursuant to a joint development plan are recorded as a reduction in research and development expenses due to the joint risk-sharing nature of the activities that is not representative of a vendor-customer relationship.
The Company records reimbursements from AstraZeneca for external study costs as a reduction in research and development expense during the period that reimbursable expenses are incurred. As a result of the cost sharing provisions in the AstraZeneca Agreement, the Company’s research and development expenses were reduced by approximately $0.2 million in each of the three months ended September 30, 2022 and 2021, respectively, and by $0.6 million and by $0.7 million in the nine months ended September 30, 2022 and 2021, respectively. The amount due to the Company from AstraZeneca pursuant to the cost-sharing provision was approximately $0.4 million as of September 30, 2022.
Out-License Agreements

EUSA
In December 2015, the Company entered into a license agreement with EUSA Pharma (UK) Limited (“EUSA” and the “EUSA Agreement”), under which the Company granted to EUSA the exclusive, sublicensable right to develop, manufacture and commercialize tivozanib in the territories of Europe (excluding Russia, Ukraine and the Commonwealth of Independent States), Latin America (excluding Mexico), Africa and Australasia (collectively, the “EUSA Licensed Territories”) for all diseases and conditions in humans, excluding non-oncologic diseases or conditions of the eye. In March of 2022, EUSA was acquired by Recordati, S.p.A (“Recordati”). As a result of the acquisition, all rights and obligations under the EUSA Agreement are transferred to Recordati.
EUSA has made research and development reimbursement and milestone payments to the Company totaling $12.5 million, including (i) a $2.5 million upfront payment upon the execution of the EUSA Agreement in December 2015, (ii) a $4.0 million research and development payment in September 2017 upon its receipt of marketing approval from the European Commission in August 2017 for FOTIVDA (tivozanib) for the treatment of RCC, and (iii) three $2.0 million milestones upon its receipt of reimbursement approvals in each of (a) February 2018 from the National Institute for Health and Care Excellence (“NICE”) in the United Kingdom, (b) November 2018 from the German Federal Association of the Statutory Health Insurances (“GKV-SV”) in Germany and (c) February 2019 from the Ministry of Health, Consumer Affairs and Social Welfare (“MSCBS”) in Spain. These reimbursement milestones payments were received in March 2018, December 2018 and May 2019, respectively. In addition, in September 2017, EUSA elected to opt-in to co-develop the Phase 2 clinical trial of tivozanib in combination with OPDIVO (nivolumab) in the first-line and the second-line treatment of RCC (the “TiNivo trial”). EUSA made an additional research and development reimbursement payment to the Company of $2.0 million in October 2017, in advance of the completion of the TiNivo trial for its approximate 50% share of the total costs of the TiNivo trial.
As of September 30, 2022, the Company is eligible to receive (i) a $2.0 million milestone payment with respect to reimbursement approval in each of France and Italy, (ii) an additional $2.0 million for the grant of marketing approval for RCC in the three licensed countries outside of the EU, as mutually agreed by the parties, of which two approvals have been obtained in New Zealand in July 2019 and in South Africa in September 2020, (iii) a payment of $2.0 million per indication in connection with a filing by EUSA with the European Medicines Agency (“EMA”) for marketing approval for tivozanib for the treatment of each of up to three additional indications, (iv) $5.0 million per indication in connection with the EMA’s grant of marketing approval for each of up to three additional indications, and (v) up to $335.0 million upon EUSA’s achievement of certain sales thresholds. In addition, the Company is also eligible to receive tiered double-digit royalties on net sales, if any, of licensed products in the EUSA Licensed Territories ranging from a low double digit up to mid-twenty percent depending on the level of annual net sales. No milestone payments nor any research and development reimbursement payments were earned in the three and nine months ended September 30, 2022 and 2021. The Company is also eligible to receive an additional research and development reimbursement payment of up to $20.0 million, for the Company’s Phase 3 randomized, controlled, multi-center, open-label clinical trial comparing tivozanib to an approved therapy, sorafenib (Nexavar®), in RCC patients whose disease had relapsed or become refractory to two or three prior systemic therapies (the “TIVO-3 trial”), if Recordati elects to opt-in to that study.
Pursuant to the KKC Agreement (as defined below), the Company is required to pay KKC a 30% sublicense fee related to earned milestone payments and royalties from EUSA. However, research and development reimbursement payments by EUSA are excluded from the 30% sublicense fee due to KKC, subject to certain limitations. If Recordati elects to opt-in to the TIVO-3 trial, only approximately $8.7 million of the $20.0 million research and development payment would be subject to the 30% sublicense fee due to KKC. The $2.0 million milestone payments the Company earned in each of February 2018, November 2018 and February 2019 upon EUSA’s reimbursement approval for FOTIVDA from the NICE in the United Kingdom, the GKV-SV in Germany and the MSCBS in Spain, respectively, for the first-line treatment of RCC were subject to the 30% KKC sublicense fee, or $0.6 million, each. The sub-license fees for EUSA’s reimbursement approvals in the United Kingdom, Germany and Spain were paid in April 2018, January 2019 and June 2019, respectively.
Recordati, following its acquisition of EUSA, is obligated to use commercially reasonable efforts to seek regulatory approval for and commercialize tivozanib throughout the EUSA Licensed Territories in RCC. Recordati has responsibility for all activities and costs associated with the further development, manufacture, regulatory filings and commercialization of tivozanib in the EUSA Licensed Territories.
Accounting Under ASC 606
Under ASC 606, the upfront consideration and regulatory milestones included in the $12.5 million aggregate transaction price, as described above, were being recognized as collaboration and licensing revenue over the Company’s estimated substantive performance period. Under ASC 606, upon the achievement of a regulatory milestone, the amount that represented the cumulative catch-up for the period from contract execution in December 2015 through the date of the milestone achievement was recognized as collaboration and licensing revenue, with the balance classified as deferred revenue and recognized as collaboration and licensing revenue over the remainder of the performance period. As of March 31, 2022, the Company determined that it had fulfilled its performance obligations under the contract in accordance with ASC 606 as the license was previously transferred and the Company is not currently providing substantive support under the EUSA Agreement, and, accordingly, the $0.6 million in remaining deferred revenue as of December 31, 2021 was fully amortized during the three months ended March 31, 2022. The Company recognized no license and collaboration revenue in the three months ended September 30, 2022 and approximately $0.5 million in the three months ended September 30, 2021. The Company recognized approximately $0.6 million and $1.5 million in the nine months ended September 30, 2022 and 2021, respectively.
None of the remaining regulatory-related milestones are included in the transaction price as these milestone amounts were fully constrained. As part of its evaluation of the constraint, the Company considered multiple factors: (i) the remaining reimbursement and marketing approvals in RCC are outside of the control of EUSA and vary on a country-by-country basis; (ii) milestones related to the submission filings for EMA approval of tivozanib in up to three additional indications are contingent upon the success of future clinical trials in additional indications, if any, and are outside of the control of EUSA; (iii) milestones related to the marketing approval by the EMA for tivozanib in up to three additional indications are contingent upon the success of the corresponding future clinical trials, if any, and are outside of the control of EUSA; and (iv) efforts by EUSA. The Company will assess any substantive performance obligations in connection with the achievement of future regulatory-related milestones. If the Company does not have any substantive performance obligations, the full amount of the milestone will be recognized in the period the milestone is achieved.
Any consideration related to sales-based milestones (including royalties) will be recognized when the related sales occur as these amounts have been determined to relate predominantly to the license granted to EUSA and therefore are recognized at the later of when the performance obligation is satisfied (or partially satisfied) or the related sales occur. The Company will re-evaluate the transaction price, including its estimated variable consideration for milestones included in the transaction price and all constrained amounts, in each reporting period and as uncertain events are resolved or other changes in circumstances occur.
In November 2017, the Company began earning sales royalties upon EUSA’s commencement of the first commercial launch of FOTIVDA with the initiation of product sales in Germany. EUSA has received reimbursement approval for and commercially launched FOTIVDA in Germany, the United Kingdom and Spain, as well as in some additional non-EU5 countries. EUSA is working to secure reimbursement approval in Italy and France and commercially launch FOTIVDA in additional EUSA licensed territories. The Company recognized royalty revenue of approximately $0.3 million and $0.4 million in the three months ended September 30, 2022 and 2021, respectively, and approximately $0.8 million and $1.0 million in the nine months ended September 30, 2022 and 2021, respectively.
The Company recognized total revenues under the EUSA Agreement of approximately $0.3 million and $0.9 million in the three months ended September 30, 2022 and 2021, respectively, and approximately $1.4 million and
$2.5 million in the nine months ended September 30, 2022 and 2021, respectively. The amount due to the Company from EUSA pursuant to the EUSA Agreement was approximately $0.6 million as of September 30, 2022.
Biodesix

In April 2014, the Company entered into a worldwide co-development and collaboration agreement (the “Biodesix Agreement”) with Biodesix, Inc. (“Biodesix”) to develop and commercialize ficlatuzumab, the Company’s potent humanized immunoglobulin G1 (“IgG1”) monoclonal antibody that targets hepatocyte growth factor (“HGF”). Under the Biodesix Agreement, prior to the first commercial sale of ficlatuzumab, each party had the right to elect to discontinue its funding obligation for further development or commercialization efforts with respect to ficlatuzumab in exchange for reduced economics in the program, which is referred to as an “Opt-Out.” In September 2020, the Company regained full global rights to ficlatuzumab, effective December 2, 2020, when Biodesix exercised its “Opt-Out” rights under the Biodesix Agreement.
Pursuant to the terms of the Biodesix Agreement, as a result of Biodesix’s election to Opt-Out, Biodesix will (i) continue to be responsible for reimbursement of development costs with respect to the ongoing open label Phase 2 investigator-sponsored clinical trial of ficlatuzumab in combination with ERBITUX® (cetuximab) in HNSCC (the “Phase 2 HNSCC Trial”), (ii) cease to be entitled to 50% sharing of profits resulting from commercialization of ficlatuzumab, (iii) be entitled to a low double digit royalty on future product sales and 25% of future licensing revenue less approximately $2.5 million that Biodesix would be required to pay to the Company pursuant to the October 2016 amendment to the Biodesix Agreement and excluding contributions to research and development expenses and (iv) remain responsible for development obligations under the Biodesix Agreement with respect to VeriStrat. Biodesix and the Company also remain obligated to negotiate a commercialization agreement to delineate their rights and obligations in the event of any commercialization of VeriStrat with ficlatuzumab. As a result of Biodesix’s decision to Opt-Out, the Company now has worldwide licensing rights and sole decision-making authority with respect to further development and commercialization of ficlatuzumab. The payment obligations between the parties under the Biodesix Agreement are in effect until completion of the Phase 2 HNSCC Trial.
Biogen Idec International GmbH
In March 2009, the Company entered into an exclusive option and license agreement with Biogen regarding the development and commercialization of the Company’s discovery-stage ErbB3-targeted antibodies, including AV-203, for the potential treatment and diagnosis of cancer and other diseases outside of North America (the “Biogen Agreement”). Under the Biogen Agreement, the Company was responsible for developing ErbB3 antibodies through completion of the first Phase 2 clinical trial designed in a manner that, if successful, would generate data sufficient to support advancement to a Phase 3 clinical trial.
In March 2014, the Company and Biogen amended the Biogen Agreement (the “Biogen Amendment”). Pursuant to the Biogen Amendment, Biogen agreed to the termination of its rights and obligations under the Biogen Agreement, including Biogen’s option to (i) obtain a co-exclusive (with the Company) worldwide license to develop and manufacture ErbB3 targeted antibodies and (ii) obtain exclusive commercialization rights to ErbB3 products in countries in the world other than North America. As a result, the Company has worldwide rights to AV-203. Pursuant to the Biogen Amendment, the Company is obligated to use reasonable efforts to seek a collaboration partner for the purpose of funding further development and commercialization of ErbB3 targeted antibodies. The Company is also obligated to pay Biogen a percentage of milestone payments received by the Company from future partnerships after March 28, 2016 and single digit royalty payments on net sales related to the sale of ErbB3 products, if any, up to a cumulative maximum amount of $50.0 million.
In-License Agreements
St. Vincent’s
In July 2012, the Company entered into a license agreement with St. Vincent’s, under which the Company obtained an exclusive, worldwide sublicensable right to research, develop, manufacture and commercialize products for human therapeutic, preventative and palliative applications that benefit from inhibition or decreased expression or activity of growth differentiation factor-15 (“GDF15”), which is also referred to as MIC-1 (the “St. Vincent’s Agreement”). Under the St. Vincent’s Agreement, St. Vincent’s also granted the Company non-exclusive rights for certain related diagnostic products and research tools.
In order to sublicense certain necessary intellectual property rights to Novartis AG in August 2015, the Company amended and restated the St. Vincent’s Agreement and made an additional upfront payment to St. Vincent’s of $1.5 million. As of September 30, 2022, the Company is required to make future milestone payments, up to an aggregate total of $12.1 million, upon the earlier of the achievement of specified development and regulatory milestones or a specified date for the first indication, and upon the achievement of specified development and regulatory milestones for the second and third indications, for licensed therapeutic products, some of which payments may be increased by a mid to high double-digit percentage rate for milestone payments made after the Company grants any sublicense, depending on the sublicensed territory. In February 2022, the Company paid a $2.3 million time-based milestone obligation which became due to St. Vincent’s in January 2022. The Company will also be required to pay St. Vincent’s tiered royalty payments equal to a low-single-digit percentage of any net sales it or its sublicensees make from licensed therapeutic products. The royalty rate escalates within the low-single-digit range during each calendar year based on increasing licensed therapeutic product sales during such calendar year.
The St. Vincent’s Agreement remains in effect until the later of ten years after the date of first commercial sale of licensed therapeutic products in the last country in which a commercial sale is made, or expiration of the last-to-expire valid claim of the licensed patents, unless we elect, or St. Vincent’s elects, to terminate the St. Vincent’s Agreement earlier. We have the right to terminate the St. Vincent’s Agreement on six months’ notice if we terminate our GDF15 research and development programs as a result of the failure of a licensed therapeutic product in preclinical or clinical development, or if we form the reasonable view that further GDF15 research and development for the treatment of cachexia is not commercially viable, and we are not then in breach of any of our obligations under the St. Vincent’s Agreement.
Kyowa Kirin Co. (KKC)
In December 2006, the Company entered into an agreement with KKC (the “KKC Agreement”), under which it obtained an exclusive, sublicensable license to develop, manufacture and commercialize tivozanib in all territories in the world except for Asia and the Middle East, where KKC retained the rights to tivozanib. Under the KKC Agreement, the Company obtained exclusive rights to tivozanib in its territory under certain KKC patents, patent applications and know-how for the diagnosis, prevention and treatment of all human diseases and conditions (the “Field”). On August 1, 2019, the Company entered into an amendment to the KKC Agreement pursuant to which KKC repurchased the non-oncology rights to tivozanib in the Company’s territory, excluding the rights the Company has sublicensed to EUSA under the EUSA Agreement. The Company has upfront, milestone and royalty payment obligations to KKC under the KKC Agreement related to the amended Field for oncology development by the Company, and following the amendment, KKC also has upfront, milestone and royalty payment obligations to the Company related to non-oncology development by KKC in the Company’s territory. Pursuant to the amendment to the KKC Agreement, KKC made a non-refundable upfront payment to the Company in the amount of $25.0 million that was received in September 2019, and KKC waived the one-time milestone payment of $18.0 million which would have otherwise been payable by the Company upon obtaining marketing approval on March 10, 2021 for tivozanib in the United States. KKC is required to make milestone payments to the Company of up to an aggregate of $390.7 million upon the successful achievement of certain development and sales milestones of tivozanib in non-oncology indications, of which the Company received a $2.8 million milestone payment in August 2020.
KKC Agreement
Upon entering into the KKC Agreement in 2006, the Company made an upfront payment in the amount of $5.0 million. In March 2010, the Company made a milestone payment to KKC in the amount of $10.0 million in connection with the dosing of the first patient in the Company’s clinical trial of tivozanib for the first-line treatment of RCC, which we refer to as our TIVO-1 trial. In December 2012, the Company made a $12.0 million milestone payment to KKC in connection with the acceptance by the FDA of the Company’s 2012 New Drug Application filing for tivozanib. Pursuant to the amendment to the KKC Agreement, KKC waived the one-time milestone payment of $18.0 million which would have otherwise been payable by the Company upon obtaining marketing approval on March 10, 2021 for tivozanib in the United States. Each milestone under the KKC Agreement was a one-time only payment obligation.
The Company has no remaining development and commercialization milestone payments due to KKC under the KKC Agreement.
The Company is required to pay tiered royalty payments on net sales it makes of tivozanib in its North American territory, which range from the low to mid-teens as a percentage of net sales. The royalty rate escalates within this range based on increasing tivozanib sales. The Company’s royalty payment obligations in a particular country in its territory begin on the date of the first commercial sale of tivozanib in that country, and end on the later of twelve years after the date of first commercial sale of tivozanib in that country or the date of the last to expire of the patents covering tivozanib that
have been issued in that country. On March 10, 2021, the FDA approved FOTIVDA in the United States for the treatment of adult patients with R/R RCC following two or more prior systemic therapies. On March 22, 2021, the Company commenced product sales of FOTIVDA in the United States. The Company recognized approximately $3.6 million and $1.7 million in the three months ended September 30, 2022 and 2021, respectively, and $9.0 million and $2.7 million in the nine months ended September 30, 2022 and 2021, respectively, in royalties due to KKC on net product sales of FOTIVDA in the United States in its Statement of Operations as a component of cost of products sold.
If the Company sublicenses any of its rights to tivozanib to a third party, as it has done with EUSA, the sublicense defines the payment obligations of the sublicensee, which may vary from the milestone and royalty payment obligations under the KKC Agreement relating to rights the Company retains. The Company is required to pay KKC a fixed 30% of amounts the Company receives from its sublicensees, including upfront license fees, milestone payments and royalties, but excluding amounts the Company receives for research and development reimbursement payments or equity investments, subject to certain limitations.
In connection with the EUSA Agreement, the Company is required to pay KKC the 30% sublicense fee related to earned milestone payments and royalties from EUSA. However, research and development reimbursement payments by EUSA are excluded from the 30% sublicense fee, subject to certain limitations. If Recordati elects to opt-in to the TIVO-3 trial, only approximately $8.7 million of the $20.0 million research and development payment would be subject to the 30% sublicense fee due to KKC. Refer to the section above, “Out License Agreements – EUSA”, for further discussion of the actual 30% sublicense fees incurred and paid to-date to KKC.
The Company and KKC each have access to and can benefit from the other party’s clinical data and regulatory filings with respect to tivozanib and biomarkers identified in the conduct of activities under the KKC Agreement, as related to the amended Field for oncology development. Under the KKC Agreement, the Company is obligated to use commercially reasonable efforts to develop and commercialize tivozanib in its territory.
The KKC Agreement will remain in effect until the expiration of all of the Company’s royalty and sublicense revenue obligations, determined on a product-by-product and country-by-country basis, unless terminated earlier. If the Company fails to meet its obligations under the KKC Agreement and is unable to cure such failure within specified time periods, KKC can terminate the KKC Agreement, resulting in a loss of our rights to tivozanib and an obligation to assign or license to KKC any intellectual property or other rights the Company may have in tivozanib, including its regulatory filings, regulatory approvals, patents and trademarks for tivozanib.
August 1, 2019 Amendment to the KKC Agreement
In addition to the non-refundable upfront payment to the Company pursuant to the amendment to the KKC Agreement in the amount of $25.0 million and the waiver of the $18.0 million milestone for United States approval of tivozanib, the Company earned and received a $2.8 million development milestone payment in August 2020 pursuant to the amendment to the KKC Agreement upon the acceptance of KKC’s investigational new drug (“IND”), application for a non-oncology use of tivozanib by the Pharmaceuticals and Medical Devices Agency of Japan on August 2, 2020. KKC is also required to make remaining milestone payments to the Company of up to an aggregate of $387.9 million upon the successful achievement of certain development and sales milestones of tivozanib in non-oncology indications. KKC is required to make tiered royalty payments to the Company on net sales of tivozanib in non-oncology indications in the Company’s territory, which range from high single digit to low double digits as a percentage of net sales. The royalty rate escalates within this range based on increasing tivozanib sales, subject to certain adjustments. KKC’s royalty payment obligations in a particular country in the Company’s territory begin on the date of the first commercial sale of tivozanib in that country, and end on the later of the expiration date of the last valid claim of a patent application or patent owned by KKC covering tivozanib or 10 years after the date of first commercial sale of tivozanib in non-oncology indications in that country. No milestone payments were earned in the three and nine months ended September 30, 2022 and 2021.
If KKC sublicenses any of its rights to tivozanib to a third-party, KKC is required to pay the Company a percentage of amounts received from the respective sublicensees related to the Company’s territory, including upfront license fees, milestone payments and royalties, but excluding amounts received in respect of research and development reimbursement payments or equity investments, subject to certain limitations.
Accounting Analysis Under the August 1, 2019 Amendment to the KKC Agreement
Following the repurchase of non-oncology rights by KKC, the amended KKC Agreement is accounted for as two distinct agreements: (i) the KKC Agreement by which the Company has upfront, milestone and royalty payment obligations to KKC related to the Company’s oncology development of tivozanib in the amended Field for the Company’s territory that continues to be accounted for under ASC 730, Research and Development, and (ii) the amended KKC
Agreement by which KKC has upfront, milestone and royalty payment obligations to the Company related to its non-oncology development of tivozanib for the Company’s territory that will be accounted for under ASC 606.
The Company evaluated the amendment to the KKC Agreement under ASC 606 and determined that KKC met the definition of a “Customer” as the Company considers the licensing or sale of intellectual property rights to be an output of the Company’s ordinary activities and is central to the operations of the Company. The Company determined that the amendment to the KKC Agreement contained a single performance obligation related to the Company’s transfer of rights to non-oncology intellectual property and know-how to KKC, excluding the rights the Company has sublicensed to EUSA under the EUSA Agreement. In addition, the Company determined that the $25.0 million non-refundable upfront payment received from KKC in September 2019 constituted the amount of the consideration to be included in the transaction price and attributed this amount to the Company’s single performance obligation. The Company satisfied this performance obligation during the third quarter of 2019. Accordingly, the Company recognized the $25.0 million in consideration as revenue in the third quarter of 2019. The Company concluded the performance obligation was satisfied at a point in time because any know-how or clinical data generated from the Company’s ongoing oncology development of tivozanib would not benefit KKC’s non-oncology development of tivozanib.
In the third quarter of 2020, the Company increased the transaction price to $27.8 million to include the $2.8 million development milestone that was earned in August 2020 upon the acceptance of KKC’s IND application for a non-oncology use of tivozanib by the Pharmaceuticals and Medical Devices Agency of Japan. Accordingly, the Company recognized the $2.8 million in consideration as revenue in the third quarter of 2020 as the Company did not have any ongoing performance obligations under the amendment to the KKC Agreement.
None of KKC’s remaining development and regulatory milestones to the Company related to its non-oncology development of tivozanib for the Company’s territory were included in the transaction price, as these milestone amounts were fully constrained. As part of its evaluation of the constraint, the Company considered multiple factors: (i) regulatory approvals are outside of the control of KKC; (ii) certain development and regulatory milestones are contingent upon the success of future clinical trials, if any, which is out of the control of KKC; and (iii) efforts by KKC. Any consideration related to development and regulatory milestones owed by KKC to the Company will be recognized when the corresponding milestones are no longer constrained as the Company does not have any ongoing performance obligations. Any consideration related to sales-based milestones (including royalties) will be recognized when the related sales occur as these amounts have been determined to relate predominantly to the intellectual property transferred to KKC and therefore are recognized at the later of when the performance obligation is satisfied or the related sales occur.