Strategic Alliances	3 Months Ended
Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
STRATEGIC ALLIANCES	STRATEGIC ALLIANCES Merck On March 8, 2023, ModeX, the Company (with respect to certain sections), and Merck Sharp & Dohme LLC (“Merck”) entered into a License and Research Collaboration Agreement (the “Merck Agreement”) pursuant to which ModeX granted to Merck a license to certain patent rights and know-how in connection with the development of ModeX’s preclinical nanoparticle vaccine candidate targeting the Epstein Barr Virus. Under the terms of the Merck Agreement, ModeX granted to Merck an exclusive, sublicensable, royalty-bearing license to certain intellectual property to conduct research under a research program to be established by the parties and to develop, manufacture, use and commercialize (i) a multivalent or monovalent vaccine assembled using the our platform for Epstein-Barr Virus (“Vaccine”), and (ii) any pharmaceutical or biological preparation in final form containing a Vaccine for sale or for administration to human patients in a clinical trial for all uses (“Product”). We received an initial payment of $50.0 million and are eligible to receive up to an additional $872.5 million upon the achievement of certain commercial and development milestones under several indications. We are also eligible to receive tiered royalty payments ranging from high single digits to low double digits upon achievement of certain sales targets of the Product. Certain of the rights subject to the license provided by us under the Merck Agreement were obtained by us from Sanofi pursuant to that certain License Agreement entered into as of July 1, 2021 (“Sanofi In-License Agreement”) between us and Sanofi, a French corporation (“Sanofi”), and a portion of the upfront payment, milestones and royalties received by us under the Merck Agreement may be payable to Sanofi under the terms of the Sanofi In-License Agreement. As a result of such obligations under the Sanofi In-License Agreement, we recorded $12.5 million in Accrued expenses in the accompanying Condensed Consolidated Balance Sheets. As part of the strategic collaboration, ModeX and Merck have agreed to establish a program for research and other development activities related to the development of a Vaccine or Product undertaken by the parties pursuant to a research plan. The parties will also establish a joint steering committee to facilitate the research program. The Merck Agreement will remain in effect until one or more Products receive marketing authorization, and, thereafter, until the expiration of all royalty obligations unless earlier terminated as permitted under the Merck Agreement. In addition to termination rights for material breach and bankruptcy, Merck is permitted to terminate the Agreement in its entirety without cause after a specified notice period. If Merck terminates the Merck Agreement for convenience or by us for Merck’s uncured material breach, we may elect to receive a reversion license such that we can continue its work with Vaccines and Products which have not been terminated due to a material safety issue. LeaderMed On September 14, 2021, we and LeaderMed announced the formation of a joint venture to develop, manufacture and commercialize two of OPKO’s clinical stage, long-acting drug products in Greater China and eight other Asian territories. Under the terms of the agreements, we have granted the joint venture exclusive rights to develop, manufacture and commercialize (a) OPK88003, an oxyntomodulin analog being developed for the treatment of obesity and diabetes, and (b) Factor VIIa-CTP, a novel long-acting coagulation factor being developed to treat hemophilia, in exchange for a 47% ownership interest in the joint venture. In addition, during 2021 we received an upfront payment of $1 million and will be reimbursed for clinical trial material and technical support we provide the joint venture. LeaderMed has agreed to be responsible for funding the joint venture’s operations, development and commercialization efforts and, together with its syndicate partners, initially invested $11 million in exchange for a 53% ownership interest. We retain full rights to oxyntomodulin and Factor VIIa-CTP in all other geographies. CAMP4 Therapeutics On July 6, 2021, we entered into an exclusive license agreement (the “CAMP4 Agreement”) with CAMP4, pursuant to which we granted to CAMP4 an exclusive license to develop, manufacture, commercialize or improve therapeutics utilizing the AntagoNAT technology, an oligonucleotide platform developed under OPKO CURNA, which includes the molecule for the treatment of Dravet syndrome, together with any derivative or modification thereof (the “Licensed Compound”) and any pharmaceutical product that comprises or contains the Licensed Compound, alone or in combination with one or more other active ingredients (“Licensed Product”), worldwide. The CAMP4 Agreement grant covers human pharmaceutical, prophylactic, and therapeutic and certain diagnostic uses. We received an initial upfront payment of $1.5 million and 3,373,008 shares of CAMP4’s Series A Prime Preferred Stock (“Preferred Stock”), which equates to approximately 9% of the outstanding shares of CAMP4, and we are eligible to receive up to $3.5 million in development milestone payments for Dravet syndrome products, and $4 million for non-Dravet syndrome products, as well as sales milestones of up to $90 million for Dravet syndrome products and up to $90 million for non-Dravet syndrome products. We may also receive double digit royalty payments on the net sales of royalty bearing products, subject to adjustment. In addition, upon achievement of certain development milestones, we will be eligible to receive equity consideration of up to 5,782,299 shares of Preferred Stock in connection with Dravet syndrome products and up to 1,082,248 shares of Preferred Stock in connection with non-Dravet syndrome products. In connection with our acquisition of CURNA, we agreed to pay future consideration to the sellers upon the achievement of certain events. As a result of our execution of the CAMP4 Agreement, we will have to pay a percentage of any payments received under the CAMP4 Agreement to the former CURNA stockholders. Unless earlier terminated, the CAMP4 Agreement will remain in effect on a Licensed Product-by-Licensed Product and country by-country basis until such time as the royalty term expires for a Licensed Product in a country, and expires in its entirety upon the expiration of the royalty term for the last Licensed Product in the last country. CAMP4’s royalty obligations expire on the later of (i) the expiration, invalidation or abandonment date of the last patent right in connection with the royalty bearing product, or (ii) ten (10) years after a royalty bearing product’s first commercial sale in a country. In addition to termination rights for material breach and bankruptcy, CAMP4 is permitted to terminate the CAMP4 Agreement after a specified notice period. NICOYA Macau Limited On June 18, 2021, EirGen, our wholly owned subsidiary, and NICOYA Macau Limited (“Nicoya”), a Macau corporation and an affiliate of NICOYA Therapeutics, entered into a Development and License Agreement (the “Nicoya Agreement”) granting Nicoya the exclusive rights for the development and commercialization of extended release calcifediol (the “Nicoya Product”) in Greater China, which includes mainland China, Hong Kong, Macau, and Taiwan (collectively, the “Nicoya Territory”). Extended release calcifediol is marketed in the U.S. by OPKO under the tradename Rayaldee. The license grant to Nicoya covers the therapeutic and preventative use of the Nicoya Product for SHPT in non-dialysis and hemodialysis chronic kidney disease patients (the “Nicoya Field”). EirGen received an initial upfront payment of $5 million and was eligible to receive an additional $5 million tied to the first anniversary of the effective date of the Nicoya Agreement, as amended, of which EirGen has received $2.5 million plus accrued interest for the delayed payment. Furthermore, EirGen received the additional $2.5 million upon Nicoya’s submission of an investigational new drug (IND) application to the Center for Drug Evaluation (CDE) of China in March 2023. EirGen is also eligible to receive up to an additional aggregate amount of $115 million upon the achievement of certain development, regulatory and sales-based milestones by Nicoya for the Nicoya Product in the Nicoya Territory. EirGen is eligible to receive tiered, double digit royalty payments at rates in the low double digits on net product sales within the Nicoya Territory and in the Nicoya Field. Nicoya will, at its sole cost and expense, be responsible for performing all development activities necessary to obtain all regulatory approvals for the Nicoya Product in the Nicoya Territory and for all commercial activities pertaining to the Nicoya Product in the Nicoya Territory. Unless earlier terminated, the Nicoya Agreement will remain in effect until such time as all royalty payment terms and extended payment terms have expired, and Nicoya shall have no further payment obligations to EirGen under the terms of the Nicoya Agreement. Nicoya’s royalty obligations expire on the later of (i) expiration of the last to expire valid patent claim covering the Nicoya Product sold in the Nicoya Territory, (ii) expiration of all regulatory and data exclusivity applicable to the Nicoya Product in the Nicoya Territory, and (iii) on a product-by-product basis, ten (10) years after such Nicoya Product’s first commercial sale in the Nicoya Territory. In addition to termination rights for material breach and bankruptcy, Nicoya is permitted to terminate the Nicoya Agreement after a specified notice period. CSL Vifor In May 2016, EirGen and Vifor Fresenius Medical Care Renal Pharma Ltd. (“Vifor”) entered into a Development and License Agreement (the “Vifor Agreement”) for the development and commercialization of Rayaldee worldwide, except for (i) the United States and Canada, (ii) any country in Central America or South America (including Mexico), (iii) Russia, (iv) China, (v) South Korea, (vi) Ukraine, (vii) Belorussia, (viii) Azerbaijan, (ix) Kazakhstan, (x) Taiwan (xi) the Middle East, and (xii) all countries of Africa (the “Vifor Territory”), as amended. The license to Vifor potentially covers all therapeutic and prophylactic uses of the Product in human patients (the “Vifor Field”), provided that initially the license is for the use of the Product for the treatment or prevention of SHPT related to patients with CKD and vitamin D insufficiency/deficiency (the “Vifor Initial Indication”). In January 2023, the price approval for Rayaldee was granted by the German Association of Statutory Health Insurance funds (GKV-SV), which triggered a milestone payment of $7.0 million for the three months ended March 31, 2023. For the three months ended March 31, 2022, we recognized a milestone payment of $3.0 million in revenue from transfer of intellectual property and other for the first sale of Rayaldee in Europe. Effective May 23, 2021, we entered into an amendment to the Vifor Agreement pursuant to which the parties thereto agreed to include Japan as part of the Vifor Territory. Effective May 5, 2020, we entered into an amendment to the Vifor Agreement pursuant to which the parties agreed to exclude Mexico, South Korea, the Middle East and all of the countries of Africa from the Vifor Territory. In addition, the parties agreed to certain amendments to the milestone structure and to reduce minimum royalties payable. As revised, the Company has received a $3 million payment triggered by the first marketing approval of Rayaldee in Europe, $7.0 million payment triggered by the Germany price approval by the local sick fund association, and is eligible to receive up to an additional $10 million in regulatory milestones and $207 million in milestone payments tied to launch, pricing and sales of Rayaldee, and tiered, double-digit royalties. We plan to share responsibility with Vifor for the conduct of trials specified within an agreed-upon development plan, with each company leading certain activities within the plan. EirGen will lead the manufacturing activities within and outside the Vifor Territory and the commercialization activities outside the Vifor Territory and outside the Vifor Field in the Vifor Territory and Vifor will lead the commercialization activities in the Vifor Territory and the Vifor Field. For the initial development plan, the companies have agreed to certain cost sharing arrangements. Vifor will be responsible for all other development costs that Vifor considers necessary to develop the Product for the use of the Product for the Vifor Initial Indication in the Vifor Territory in the Vifor Field except as otherwise provided in the Vifor Agreement. The first of the clinical studies provided for in the development activities commenced in September 2018. In connection with the Vifor Agreement, the parties entered into a letter agreement pursuant to which EirGen granted to Vifor an exclusive option (the “Option”) to acquire an exclusive license under certain EirGen patents and technology to use, import, offer for sale, sell, distribute and commercialize the Product in the U.S. solely for the treatment of SHPT in dialysis patients with CKD and vitamin D insufficiency (the “Dialysis Indication”). Upon exercise of the Option, Vifor has agreed to reimburse EirGen for all of the development costs incurred by EirGen with respect to the Product for the Dialysis Indication in the U.S. Vifor would also pay EirGen up to an additional aggregate amount of $555 million of sales-based milestones upon the achievement of certain milestones and would be obligated to pay royalties at percentage rates that range from the mid-teens to the mid-twenties on sales of the Product in the U.S. for the Dialysis Indication. To date, Vifor has not exercised the Option. Payments received for regulatory milestones and sales milestones are non-refundable. The regulatory milestones are payable if and when Vifor obtains approval from certain regulatory authorities and will be recognized as revenue in the period in which the associated milestone is achieved, assuming all other revenue recognition criteria are met. We account for the sales milestones as royalties and sales milestones payments will be recognized as revenue in the period in which the associated milestone is achieved or sales occur, assuming all other revenue recognition criteria are met. Pfizer Inc. In December 2014, we entered into an exclusive worldwide agreement (the “Pfizer Agreement”) with Pfizer for the development and commercialization of our long-acting Somatrogon (hGH-CTP) for the treatment of growth hormone deficiency (“GHD”) in adults and children, as well as for the treatment of growth failure in children born small for gestational age (the “Pfizer Transaction”). In early 2022, the European Commission and Ministry of Health, Labour and Welfare in Japan approved the next-generation long-acting recombinant human growth hormone NGENLA (Somatrogon), a once-weekly injection to treat pediatric growth hormone deficiency, and we received pricing approvals in Germany and Japan. With the achievement of these milestones, we received $85.0 million in milestone payments in 2022. Further, Canada and Australia approved NGENLA in 2021. In January 2022, the FDA issued a Complete Response Letter for the BLA for Somatrogon (hGH-CTP). Pfizer and OPKO are evaluating the FDA’s comments and will work with the agency to determine the best path forward for Somatrogon (hGH-CTP) in the United States. In May 2020, we entered into an Amended and Restated Development and Commercialization License Agreement (the “Restated Pfizer Agreement”) with Pfizer, effective January 1, 2020, pursuant to which the parties agreed, among other things, to share all costs for Manufacturing Activities, as defined in the Restated Pfizer Agreement, for developing a licensed product for the three indications included in the Restated Pfizer Agreement. On October 21, 2019, we and Pfizer announced that the global phase 3 trial evaluating Somatrogon dosed once-weekly in prepubertal children with GHD met its primary endpoint of non-inferiority to daily Genotropin® (somatropin) for injection, as measured by annual height velocity at 12 months. Under the terms of the Pfizer Transaction, as restated, we received non-refundable and non-creditable upfront payments of $295.0 million and are eligible to receive up to an additional $275.0 million upon the achievement of certain regulatory milestones, $85 million of which we received during the second quarter of 2022. Pfizer received the exclusive license to commercialize Somatrogon worldwide. In addition, we are eligible to receive initial tiered royalty payments associated with the commercialization of Somatrogon for adult GHD with percentage rates ranging from the high teens to mid-twenties. Upon the launch of Somatrogon for pediatric GHD in certain major markets, the royalties will transition to regional, tiered gross profit sharing for both Somatrogon and Pfizer’s Genotropin® (somatropin). The agreement with Pfizer will remain in effect until the last sale of the licensed product, unless earlier terminated as permitted under the Pfizer Agreement. In addition to termination rights for material breach and bankruptcy, Pfizer is permitted to terminate the Pfizer Agreement in its entirety, or with respect to one or more world regions, without cause after a specified notice period. If the Pfizer Agreement is terminated by us for Pfizer’s uncured material breach, or by Pfizer without cause, provision has been made for transition of product and product responsibilities to us for the terminated regions, as well as continued supply of product by Pfizer or transfer of supply to us in order to support the terminated regions. We recognized the non-refundable $295.0 million upfront payments as revenue as the research and development services were completed. As of March 31, 2023 and December 31, 2022, we had no contract liabilities related to the Pfizer Transaction. The Pfizer Transaction includes milestone payments of $275.0 million upon the achievement of certain milestones. The milestones range from $20.0 million to $90.0 million each and are based on achievement of regulatory approval in the U.S. and regulatory approval and price approval in other major markets. The milestone payments will be recognized as revenue in the period in which the associated milestone is achieved, assuming all other revenue recognition criteria are met. To date, $85.0 million of revenue has been recognized related to the achievement of the milestones. Other We have completed strategic deals with numerous institutions and commercial partners. In connection with these agreements, upon the achievement of certain milestones we are obligated to make certain payments and have royalty obligations upon sales of products developed under the license agreements. At this time, we are unable to estimate the timing and amounts of payments as the obligations are based on future development of the licensed products.

On March 8, 2023, ModeX, the Company (with respect to certain sections), and Merck Sharp & Dohme LLC (“Merck”) entered into a License and Research Collaboration Agreement (the “Merck Agreement”) pursuant to which ModeX granted to Merck a license to certain patent rights and know-how in connection with the development of ModeX’s preclinical nanoparticle vaccine candidate targeting the Epstein Barr Virus.

Under the terms of the Merck Agreement, ModeX granted to Merck an exclusive, sublicensable, royalty-bearing license to certain intellectual property to conduct research under a research program to be established by the parties and to develop, manufacture, use and commercialize (i) a multivalent or monovalent vaccine assembled using the our platform for Epstein-Barr Virus (“Vaccine”), and (ii) any pharmaceutical or biological preparation in final form containing a Vaccine for sale or for administration to human patients in a clinical trial for all uses (“Product”). We received an initial payment of $50.0 million and are eligible to receive up to an additional $872.5 million upon the achievement of certain commercial and development milestones under several indications. We are also eligible to receive tiered royalty payments ranging from high single digits to low double digits upon achievement of certain sales targets of the Product. Certain of the rights subject to the license provided by us under the Merck Agreement were obtained by us from Sanofi pursuant to that certain License Agreement entered into as of July 1, 2021 (“Sanofi In-License Agreement”) between us and Sanofi, a French corporation (“Sanofi”), and a portion of the upfront payment, milestones and royalties received by us under the Merck Agreement may be payable to Sanofi under the terms

As part of the strategic collaboration, ModeX and Merck have agreed to establish a program for research and other development activities related to the development of a Vaccine or Product undertaken by the parties pursuant to a research plan. The parties will also establish a joint steering committee to facilitate the research program.

The Merck Agreement will remain in effect until one or more Products receive marketing authorization, and, thereafter, until the expiration of all royalty obligations unless earlier terminated as permitted under the Merck Agreement. In addition to termination rights for material breach and bankruptcy, Merck is permitted to terminate the Agreement in its entirety without cause after a specified notice period. If Merck terminates the Merck Agreement for convenience or by us for Merck’s uncured material breach, we may elect to receive a reversion license such that we can continue its work with Vaccines and Products which have not been terminated due to a material safety issue.

Under the terms of the agreements, we have granted the joint venture exclusive rights to develop, manufacture and commercialize (a) OPK88003, an oxyntomodulin analog being developed for the treatment of obesity and diabetes, and (b) Factor VIIa-CTP, a novel long-acting coagulation factor being developed to treat hemophilia, in exchange for a 47% ownership interest in the joint venture. In addition, during 2021 we received an upfront payment of $1 million and will be reimbursed for clinical trial material and technical support we provide the joint venture.

LeaderMed has agreed to be responsible for funding the joint venture’s operations, development and commercialization efforts and, together with its syndicate partners, initially invested $11 million in exchange for a 53% ownership interest. We retain full rights to oxyntomodulin and Factor VIIa-CTP in all other geographies.

On July 6, 2021, we entered into an exclusive license agreement (the “CAMP4 Agreement”) with CAMP4, pursuant to which we granted to CAMP4 an exclusive license to develop, manufacture, commercialize or improve therapeutics utilizing the AntagoNAT technology, an oligonucleotide platform developed under OPKO CURNA, which includes the molecule for the treatment of Dravet syndrome, together with any derivative or modification thereof (the “Licensed Compound”) and any pharmaceutical product that comprises or contains the Licensed Compound, alone or in combination with one or more other active ingredients (“Licensed Product”), worldwide. The CAMP4 Agreement grant covers human pharmaceutical, prophylactic, and therapeutic and certain diagnostic uses.

We received an initial upfront payment of $1.5 million and 3,373,008 shares of CAMP4’s Series A Prime Preferred Stock (“Preferred Stock”), which equates to approximately 9% of the outstanding shares of CAMP4, and we are eligible to receive up to $3.5 million in development milestone payments for Dravet syndrome products, and $4 million for non-Dravet syndrome products, as well as sales milestones of up to $90 million for Dravet syndrome products and up to $90 million for non-Dravet syndrome products. We may also receive double digit royalty payments on the net sales of royalty bearing products, subject to adjustment. In addition, upon achievement of certain development milestones, we will be eligible to receive equity consideration of up to 5,782,299 shares of Preferred Stock in connection with Dravet syndrome products and up to 1,082,248 shares of Preferred Stock in connection with non-Dravet syndrome products. In connection with our acquisition of CURNA, we agreed to pay future consideration to the sellers upon the achievement of certain events. As a result of our execution of the CAMP4 Agreement, we will have to pay a percentage of any payments received under the CAMP4 Agreement to the former CURNA stockholders.

Unless earlier terminated, the CAMP4 Agreement will remain in effect on a Licensed Product-by-Licensed Product and country by-country basis until such time as the royalty term expires for a Licensed Product in a country, and expires in its entirety upon the expiration of the royalty term for the last Licensed Product in the last country. CAMP4’s royalty obligations expire on the later of (i) the expiration, invalidation or abandonment date of the last patent right in connection with the royalty bearing product, or (ii) ten (10) years after a royalty bearing product’s first commercial sale in a country. In addition to termination rights for material breach and bankruptcy, CAMP4 is permitted to terminate the CAMP4 Agreement after a specified notice period.

On June 18, 2021, EirGen, our wholly owned subsidiary, and NICOYA Macau Limited (“Nicoya”), a Macau corporation and an affiliate of NICOYA Therapeutics, entered into a Development and License Agreement (the “Nicoya Agreement”) granting Nicoya the exclusive rights for the development and commercialization of extended release calcifediol (the “Nicoya Product”) in Greater China, which includes mainland China, Hong Kong, Macau, and Taiwan (collectively, the “Nicoya Territory”). Extended release calcifediol is marketed in the U.S. by OPKO under the tradename Rayaldee. The license grant to Nicoya covers the therapeutic and preventative use of the Nicoya Product for SHPT in non-dialysis and hemodialysis chronic kidney disease patients (the “Nicoya Field”).

EirGen received an initial upfront payment of $5 million and was eligible to receive an additional $5 million tied to the first anniversary of the effective date of the Nicoya Agreement, as amended, of which EirGen has received $2.5 million plus accrued interest for the delayed payment. Furthermore, EirGen received the additional $2.5 million upon Nicoya’s submission of an investigational new drug (IND) application to the Center for Drug Evaluation (CDE) of China in March 2023. EirGen is also eligible to receive up to an additional aggregate amount of $115 million upon the achievement of certain development, regulatory and sales-based milestones by Nicoya for the Nicoya Product in the Nicoya Territory. EirGen is eligible to receive tiered, double digit royalty payments at rates in the low double digits on net product sales within the Nicoya Territory and in the Nicoya Field.

Nicoya will, at its sole cost and expense, be responsible for performing all development activities necessary to obtain all regulatory approvals for the Nicoya Product in the Nicoya Territory and for all commercial activities pertaining to the Nicoya Product in the Nicoya Territory.

Unless earlier terminated, the Nicoya Agreement will remain in effect until such time as all royalty payment terms and extended payment terms have expired, and Nicoya shall have no further payment obligations to EirGen under the terms of the Nicoya Agreement. Nicoya’s royalty obligations expire on the later of (i) expiration of the last to expire valid patent claim covering the Nicoya Product sold in the Nicoya Territory, (ii) expiration of all regulatory and data exclusivity applicable to the Nicoya Product in the Nicoya Territory, and (iii) on a product-by-product basis, ten (10) years after such Nicoya Product’s first commercial sale in the Nicoya Territory. In addition to termination rights for material breach and bankruptcy, Nicoya is permitted to terminate the Nicoya Agreement after a specified notice period.

In May 2016, EirGen and Vifor Fresenius Medical Care Renal Pharma Ltd. (“Vifor”) entered into a Development and License Agreement (the “Vifor Agreement”) for the development and commercialization of Rayaldee worldwide, except for (i) the United States and Canada, (ii) any country in Central America or South America (including Mexico), (iii) Russia, (iv) China, (v) South Korea, (vi) Ukraine, (vii) Belorussia, (viii) Azerbaijan, (ix) Kazakhstan, (x) Taiwan (xi) the Middle East, and (xii) all countries of Africa (the “Vifor Territory”), as amended. The license to Vifor potentially covers all therapeutic and prophylactic uses of the Product in human patients (the “Vifor Field”), provided that initially the license is for the use of the Product for the treatment or prevention of SHPT related to patients with CKD and vitamin D insufficiency/deficiency (the “Vifor Initial Indication”).

In January 2023, the price approval for Rayaldee was granted by the German Association of Statutory Health Insurance funds (GKV-SV), which triggered a milestone payment of $7.0 million for the three months ended March 31, 2023. For the three months ended March 31, 2022, we recognized a milestone payment of $3.0 million in revenue from transfer of intellectual property and other for the first sale of Rayaldee in Europe.

Effective May 5, 2020, we entered into an amendment to the Vifor Agreement pursuant to which the parties agreed to exclude Mexico, South Korea, the Middle East and all of the countries of Africa from the Vifor Territory. In addition, the parties agreed to certain amendments to the milestone structure and to reduce minimum royalties payable. As revised, the Company has received a $3 million payment triggered by the first marketing approval of Rayaldee in Europe, $7.0 million payment triggered by the Germany price approval by the local sick fund association, and is eligible to receive up to an additional $10 million in regulatory milestones and $207 million in milestone payments tied to launch, pricing and sales of Rayaldee, and tiered, double-digit royalties.

We plan to share responsibility with Vifor for the conduct of trials specified within an agreed-upon development plan, with each company leading certain activities within the plan. EirGen will lead the manufacturing activities within and outside the Vifor Territory and the commercialization activities outside the Vifor Territory and outside the Vifor Field in the Vifor Territory and Vifor will lead the commercialization activities in the Vifor Territory and the Vifor Field. For the initial development plan, the companies have agreed to certain cost sharing arrangements. Vifor will be responsible for all other

development costs that Vifor considers necessary to develop the Product for the use of the Product for the Vifor Initial Indication in the Vifor Territory in the Vifor Field except as otherwise provided in the Vifor Agreement. The first of the clinical studies provided for in the development activities commenced in September 2018.

In connection with the Vifor Agreement, the parties entered into a letter agreement pursuant to which EirGen granted to Vifor an exclusive option (the “Option”) to acquire an exclusive license under certain EirGen patents and technology to use, import, offer for sale, sell, distribute and commercialize the Product in the U.S. solely for the treatment of SHPT in dialysis patients with CKD and vitamin D insufficiency (the “Dialysis Indication”). Upon exercise of the Option, Vifor has agreed to reimburse EirGen for all of the development costs incurred by EirGen with respect to the Product for the Dialysis Indication in the U.S. Vifor would also pay EirGen up to an additional aggregate amount of $555 million of sales-based milestones upon the achievement of certain milestones and would be obligated to pay royalties at percentage rates that range from the mid-teens to the mid-twenties on sales of the Product in the U.S. for the Dialysis Indication. To date, Vifor has not exercised the Option.

Payments received for regulatory milestones and sales milestones are non-refundable. The regulatory milestones are payable if and when Vifor obtains approval from certain regulatory authorities and will be recognized as revenue in the period in which the associated milestone is achieved, assuming all other revenue recognition criteria are met. We account for the sales milestones as royalties and sales milestones payments will be recognized as revenue in the period in which the associated milestone is achieved or sales occur, assuming all other revenue recognition criteria are met.

In December 2014, we entered into an exclusive worldwide agreement (the “Pfizer Agreement”) with Pfizer for the development and commercialization of our long-acting Somatrogon (hGH-CTP) for the treatment of growth hormone deficiency (“GHD”) in adults and children, as well as for the treatment of growth failure in children born small for gestational age (the “Pfizer Transaction”).

In early 2022, the European Commission and Ministry of Health, Labour and Welfare in Japan approved the next-generation long-acting recombinant human growth hormone NGENLA (Somatrogon), a once-weekly injection to treat pediatric growth hormone deficiency, and we received pricing approvals in Germany and Japan. With the achievement of these milestones, we received $85.0 million in milestone payments in 2022. Further, Canada and Australia approved NGENLA in 2021.

In May 2020, we entered into an Amended and Restated Development and Commercialization License Agreement (the “Restated Pfizer Agreement”) with Pfizer, effective January 1, 2020, pursuant to which the parties agreed, among other things, to share all costs for Manufacturing Activities, as defined in the Restated Pfizer Agreement, for developing a licensed product for the three indications included in the Restated Pfizer Agreement.

On October 21, 2019, we and Pfizer announced that the global phase 3 trial evaluating Somatrogon dosed once-weekly in prepubertal children with GHD met its primary endpoint of non-inferiority to daily Genotropin® (somatropin) for injection, as measured by annual height velocity at 12 months.

Under the terms of the Pfizer Transaction, as restated, we received non-refundable and non-creditable upfront payments of $295.0 million and are eligible to receive up to an additional $275.0 million upon the achievement of certain regulatory milestones, $85 million of which we received during the second quarter of 2022. Pfizer received the exclusive license to commercialize Somatrogon worldwide. In addition, we are eligible to receive initial tiered royalty payments associated with the commercialization of Somatrogon for adult GHD with percentage rates ranging from the high teens to mid-twenties. Upon the launch of Somatrogon for pediatric GHD in certain major markets, the royalties will transition to regional, tiered gross profit sharing for both Somatrogon and Pfizer’s Genotropin® (somatropin).

The agreement with Pfizer will remain in effect until the last sale of the licensed product, unless earlier terminated as permitted under the Pfizer Agreement. In addition to termination rights for material breach and bankruptcy, Pfizer is permitted to terminate the Pfizer Agreement in its entirety, or with respect to one or more world regions, without cause after a specified notice period. If the Pfizer Agreement is terminated by us for Pfizer’s uncured material breach, or by Pfizer without cause, provision has been made for transition of product and product responsibilities to us for the terminated regions, as well as continued supply of product by Pfizer or transfer of supply to us in order to support the terminated regions.

The Pfizer Transaction includes milestone payments of $275.0 million upon the achievement of certain milestones. The milestones range from $20.0 million to $90.0 million each and are based on achievement of regulatory approval in the U.S. and regulatory approval and price approval in other major markets. The milestone payments will be recognized as revenue in the period in which the associated milestone is achieved, assuming all other revenue recognition criteria are met. To date, $85.0 million of revenue has been recognized related to the achievement of the milestones.

We have completed strategic deals with numerous institutions and commercial partners. In connection with these agreements, upon the achievement of certain milestones we are obligated to make certain payments and have royalty obligations upon sales of products developed under the license agreements. At this time, we are unable to estimate the timing and amounts of payments as the obligations are based on future development of the licensed products.