Additionally, addressing the dose-dependent toxicities of anti-CTLA-4 therapy may enable more front-line combinations, fully unlocking the potential of anti-CTLA-4 as a cornerstone of cancer care. Adagene’s innovative view of anti-CTLA-4 therapy focuses on the fundamental biology of CTLA-4 and its constitutive expression on Tregs within the TME.
Additionally, addressing dose-dependent toxicities of anti-CTLA-4 therapy may enable more front-line combinations, fully unlocking the potential of anti-CTLA-4 as a cornerstone of cancer care. Adagene’s innovative view of anti-CTLA-4 therapy focuses on the fundamental biology of CTLA-4 and its constitutive expression on Tregs within the TME.
Research shown below demonstrates that CTLA-4 is highly expressed within the Tregs in the tumor both in mice and humans across tumor types, with up to five times higher of CTLA-4 on the Tregs in the tumor versus CTLA-4 expression on CD4+ T effector and CD8+ T cells in the tumor.
Research shown below demonstrates that CTLA-4 is highly expressed within Tregs cells in the tumor both in mice and humans across tumor types, with up to five times higher of CTLA-4 on the Tregs in the tumor versus CTLA-4 expression on CD4+ T effector and CD8+ T cells in the tumor.
See “—Summary of Combination Clinical Studies & Results. ” In totality, our clinical data support best-in-class safety and differentiated efficacy profiles for ADG126 particularly in combination with anti-PD-1, overcoming the safety challenges of anti-CTLA-4 therapy to become a cornerstone of cancer care by its T cell priming and strong Treg depletion in the TME.
See “—Summary of Combination Clinical Studies & Results. ” and “ —Summary of Monotherapy Clinical Studies & Results .” In totality, our clinical data support best-in-class safety and differentiated efficacy profiles for ADG126 particularly in combination with anti-PD-1, overcoming the safety challenges of anti-CTLA-4 therapy to become a cornerstone of cancer care by its T cell priming and strong Treg depletion in the TME.
The determination as to whether or not an overseas offering and listing by PRC domestic companies is indirect shall be made on a “substance over form” basis; the Listing Guidelines further stipulate that if an issuer not satisfying Condition I submits an application for issuance and listing in overseas markets in accordance with relevant non-PRC issuance regulations requiring such issuer to disclose risk factors mainly related to the PRC, the securities firm(s) and the issuer’s PRC counsel should follow the principle of “substance over form” in order to identify and argue whether the issuer should complete a filing under the Trial Measures. 141 Table of Contents Subsequent securities offerings of an issuer in (i) the same overseas market where it has previously offered and listed securities, and (ii) an overseas market other than one where the issuer has previously offered and listed securities shall be filed with the CSRC within three working days after offerings are completed.
The determination as to whether or not an overseas offering and listing by PRC domestic companies is indirect shall be made on a “substance over form” basis; the Listing Guidelines further stipulate that if an issuer not satisfying Condition I submits an application for issuance and listing in overseas markets in accordance with relevant non-PRC issuance regulations requiring such issuer to disclose risk factors mainly related to the PRC, the securities firm(s) and the issuer’s PRC counsel should follow the principle of “substance over form” in order to identify and argue whether the issuer should complete a filing under the Trial Measures. 149 Table of Contents Subsequent securities offerings of an issuer in (i) the same overseas market where it has previously offered and listed securities, and (ii) an overseas market other than one where the issuer has previously offered and listed securities shall be filed with the CSRC within three working days after offerings are completed.
According to the Notice on Promoting the Implementation of Corporate Income Tax Policies for Advanced Technology Service Enterprises Nationwide, or the Notice, since January 2017, an enterprise which is recognized as an “Advanced Technology Service Enterprises” under the Notice enjoys a reduced enterprise income tax rate of 15%. 144 Table of Contents According to the Arrangement Between the Mainland of China and the Hong Kong Special Administrative Region for the Avoidance of Double Taxation and Prevention of Fiscal Evasion with Respect to Taxes on Income, or the Double Tax Avoidance Arrangement, which was promulgated and came into effect in August 2006, and other applicable PRC laws, if a Hong Kong resident enterprise is determined by the competent PRC tax authority to have satisfied the relevant conditions and requirements under such Double Tax Avoidance Arrangement and other applicable laws, the 10% withholding tax on the dividends the Hong Kong resident enterprise receives from a PRC resident enterprise may be reduced to 5%.
According to the Notice on Promoting the Implementation of Corporate Income Tax Policies for Advanced Technology Service Enterprises Nationwide, or the Notice, since January 2017, an enterprise which is recognized as an “Advanced Technology Service Enterprises” under the Notice enjoys a reduced enterprise income tax rate of 15%. 152 Table of Contents According to the Arrangement Between the Mainland of China and the Hong Kong Special Administrative Region for the Avoidance of Double Taxation and Prevention of Fiscal Evasion with Respect to Taxes on Income, or the Double Tax Avoidance Arrangement, which was promulgated and came into effect in August 2006, and other applicable PRC laws, if a Hong Kong resident enterprise is determined by the competent PRC tax authority to have satisfied the relevant conditions and requirements under such Double Tax Avoidance Arrangement and other applicable laws, the 10% withholding tax on the dividends the Hong Kong resident enterprise receives from a PRC resident enterprise may be reduced to 5%.
Clinical Development Status Our clinical development of ADG126 is focused on combination evaluation with anti-PD-1 therapy, including an ongoing phase 1b/2 trial of ADG126 in combination with pembrolizumab dose expansion cohorts in patients with cohorts in advanced/metastatic MSS CRC evaluating doses of 10 mg/kg Q3W and evaluating 20 mg/kg loading doses.
Clinical Development Status Our clinical development of ADG126 is focused on combination evaluation with anti-PD-1 therapy, including an ongoing phase 1b/2 trial of ADG126 in combination with pembrolizumab dose expansion cohorts in patients of advanced/metastatic MSS CRC evaluating doses of 10 mg/kg Q3W and 20 mg/kg loading doses, etc.
In addition to the upfront payment of US$11.0 million received in 2021, in the aggregate, we could be eligible to receive up to US$55,000,000 in development milestone payments, among which we have received US$3.0 million in 2022 and US$3.0 million in 2023, US$200,000,000 in regulatory milestone payments, and up to US$525,000,000 in sales milestone payments for both targets under the Exelixis Agreement.
In addition to the upfront payment of US$11.0 million received in 2021, in the aggregate, we could be eligible to receive up to US$55.0 million in development milestone payments, among which we have received US$3.0 million in 2022 and US$3.0 million in 2023, US$200 million in regulatory milestone payments, and up to US$525 million in sales milestone payments for both targets under the Exelixis Agreement.
The figure below shows how ADG206 and ADG106 are designed to target a unique epitope of CD137 and overcome the challenges of anti-CD137 therapy. 103 Table of Contents ADG 106/206 target a unique epitope of CD137/4-1BB pathway validated by CAR-T ADG206 POWERbody: Our Fc-Enhanced IgG1 SAFEbody is a Next Generation Anti-CD137 Therapy ADG206 is designed to solve the safety and efficacy challenges of anti-CD137 therapy, leveraging learnings from development of urelumab (another company’s anti-CD137 targeting antibody), which showed single agent clinical efficacy and dose-dependent liver toxicity in clinic, as well as the clinical development of our unmasked anti-CD137, ADG106, which is the activated form.
The figure below shows how ADG206 and ADG106 are designed to target a unique epitope of CD137 and overcome the challenges of anti-CD137 therapy. 111 Table of Contents ADG 106/206 target a unique epitope of CD137/4-1BB pathway validated by CAR-T ADG206 POWERbody: Our Fc-Enhanced IgG1 SAFEbody is a Next Generation Anti-CD137 Therapy ADG206 is designed to solve the safety and efficacy challenges of anti-CD137 therapy, leveraging learnings from development of urelumab (another company’s anti-CD137 targeting antibody), which showed single agent clinical efficacy and dose-dependent liver toxicity in clinic, as well as the clinical development of our unmasked anti-CD137, ADG106, which is the activated form.
We, along with third-party contractors, will be required to navigate the various preclinical, clinical and commercial approval requirements of the governing regulatory agencies of the countries in which we wish to conduct studies or seek approval or licensure of our product candidates.
We, along with third-party contractors, will be required to navigate the various preclinical, clinical and commercial approval requirements and updates of the governing regulatory agencies of the countries in which we wish to conduct studies or seek approval or licensure of our product candidates.
Further, we have out-licensed the Greater China rights of ADG104, an anti-PD-L1 mAb currently in Phase 2 clinical development, to Sanjin, and the Greater China rights of ADG125, a novel anti-CSF-1R mAb in Phase 1 development, to Dragon Boat Biopharmaceuticals.
Further, we have out-licensed the Greater China rights of ADG104, an anti-PD-L1 mAb currently in Phase 2 clinical development, to Sanjin, and the Greater China rights of ADG125, a novel anti-CSF-1R mAb in Phase 2 development, to Dragon Boat Biopharmaceuticals.
For example, we believe our clinical stage anti-CTLA-4 and anti-CD137 candidates bind to different epitopes and exhibit dramatic differences in their respective clinical safety and efficacy results, underscoring the importance of finding suitable species cross-reactive antibodies like those we have utilized for comprehensive preclinical evaluation before entering clinical trials. 107 Table of Contents Our DPL is a large physical phage library (~10 12 ) that contain our synthetic designer antibodies with flexible antibody binding interface.
For example, we believe our clinical stage anti-CTLA-4 and anti-CD137 candidates bind to different epitopes and exhibit dramatic differences in their respective clinical safety and efficacy results, underscoring the importance of finding suitable species cross-reactive antibodies like those we have utilized for comprehensive preclinical evaluation before entering clinical trials. 115 Table of Contents Our DPL is a large physical phage library (~10 12 ) that contain our synthetic designer antibodies with flexible antibody binding interface.
These results are shown in the swimmer and spider plots below. 95 Table of Contents Clinical Efficacy of Patients with MSS CRC (Free of Liver Mets) in Dose Expansion Of particular interest was the confirmed PR in a patient who presented initially without active liver metastases but later experienced tumor shrinkage in new liver lesions, suggesting the potency of the ADG126 and pembrolizumab combination once the cleaved ADG126 in steady state in TME is achieved with repeat cycles of therapy.
These results are shown in the Swimmer and Spider plots below. 97 Table of Contents Clinical Efficacy of Patients with MSS CRC (Free of Liver Mets) in Dose Expansion Of particular interest was the confirmed PR in a patient who presented initially without active liver metastases but later experienced tumor shrinkage in new liver lesions, suggesting the potency of the ADG126 and pembrolizumab combination once the steady state cleaved ADG126 in the TME is achieved with repeat cycles of therapy.
We will retain global development and commercialization rights to ADG126. ● In August 2022 and October 2021, we announced agreements with research organizations in Singapore for an investigator-initiated trials of our ADG106 clinical candidate with neoadjuvant chemotherapy (doxorubicin and cyclophosphamide followed by paclitaxel) in early-stage, HER2 negative breast cancer and in combination with anti-PD-1 therapy in patients with advanced non-small cell lung cancer (NSCLC), respectively.
We will retain global development and commercialization rights to ADG126. ● In August 2022 and October 2021, we announced agreements with research organizations in Singapore for an investigator-initiated trials of our ADG106 clinical candidate with neoadjuvant chemotherapy (doxorubicin and cyclophosphamide followed by paclitaxel) in early-stage, HER2 negative breast cancer (ADG106-T6002) and in combination with anti-PD-1 therapy in patients with advanced non-small cell lung cancer (NSCLC)(ADG106-T6001), respectively.
Our lead candidate is an anti-CTLA-4 SAFEbody, ADG126 (muzastotug), which is currently in phase 1b/2 development, initially focused on metastatic microsatellite-stable (MSS) colorectal cancer (CRC).
Our lead candidate is an anti-CTLA-4 SAFEbody, ADG126 (muzastotug), which is currently in phase 1b/2 development, and focused initially on metastatic microsatellite-stable (MSS) colorectal cancer (CRC).
ADG106 NEObody: A Novel Agonistic Anti-CD137 ADG106, is a fully human ligand-blocking, agonistic anti-CD137 IgG4 mAb generated using our NEObody technology to target a unique conserved epitope of CD137. 104 Table of Contents We previously completed two Phase 1 clinical trials, ADG106-1001 and ADG106-1002, in the U.S. and China, respectively, evaluating ADG106 as monotherapy in a total of 98 patients with advanced or metastatic solid tumors and/or NHL.
ADG106 NEObody: A Novel Agonistic Anti-CD137 ADG106, is a fully human ligand-blocking, agonistic anti-CD137 IgG4 mAb generated using our NEObody technology to target a unique conserved epitope of CD137. 112 Table of Contents We previously completed two Phase 1 clinical trials, ADG106-1001 and ADG106-1002, in the U.S. and China, respectively, evaluating ADG106 as monotherapy in a total of 98 patients with advanced or metastatic solid tumors and/or NHL.
Royalties, if any, will be payable on a country-by-country and product-by-product basis until the latest of (i) the tenth anniversary of the first commercial sale of such product in such country, (ii) the expiration of the last-to-expire of certain specified patents that cover such product’s composition of matter or method of use as sold in such country or (iii) the expiration of regulatory exclusivity for such product in such country. 109 Table of Contents The Sanofi Agreement will expire upon the termination of all royalty obligations.
Royalties, if any, will be payable on a country-by-country and product-by-product basis until the latest of (i) the tenth anniversary of the first commercial sale of such product in such country, (ii) the expiration of the last-to-expire of certain specified patents that cover such product’s composition of matter or method of use as sold in such country or (iii) the expiration of regulatory exclusivity for such product in such country. 117 Table of Contents The Sanofi Agreement will expire upon the termination of all royalty obligations.
Under terms of the agreement, Merck provides pembrolizumab and input on our clinical trials evaluating pembrolizumab in combination with ADG126 and ADG116, respectively. 108 Table of Contents TECHNOLOGY COLLABORATIONS WITH BIOPHARMACEUTICAL COMPANIES We enter into collaborations with biotechnology and pharmaceutical companies to leverage the power of our technology platforms, creating a network of potential future revenue streams that complements future long-term value from our wholly-owned pipeline.
Under terms of the agreement, Merck provides pembrolizumab and input on our clinical trials evaluating pembrolizumab in combination with ADG126 and ADG116, respectively. 116 Table of Contents TECHNOLOGY COLLABORATIONS WITH BIOPHARMACEUTICAL COMPANIES We enter into collaborations with biotechnology and pharmaceutical companies to leverage the power of our technology platforms, creating a network of potential future revenue streams that complements future long-term value from our wholly-owned pipeline.
It is currently under Phase 1b/2 clinical evaluation in multiple trials in the U.S., China and APAC, both as monotherapy and in combination with anti-PD-1 therapy. ADG126 is designed to address the toxicity issues of the approved CTLA-4 immuno-oncology therapy and achieve enhance anti-tumor efficacy to expand the potential of CTLA-4 as a target for the treatment of cancer.
It is currently under Phase 1b/2 clinical evaluation in multiple trials in the U.S., China and APAC, in combination with anti-PD-1 therapy. ADG126 is designed to address the toxicity issues of the approved CTLA-4 immuno-oncology therapy and achieve enhance anti-tumor efficacy to expand the potential of CTLA-4 as a target for the treatment of cancer.
Regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors. 117 Table of Contents MATERIAL LICENSES AND APPROVALS The following table sets forth a list of material licenses and approvals, subject to further renewal, that our PRC subsidiary is required to obtain to carry out our operations in China.
Regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors. MATERIAL LICENSES AND APPROVALS The following table sets forth a list of material licenses and approvals, subject to further renewal, that our PRC subsidiary is required to obtain to carry out our operations in China.
Risk Factors—Risks Related to Doing Business in the PRC,” “—Risks Related to Clinical Development of Our Product Candidates,” and “—Risks Related to Obtaining Regulatory Approval of Our Drug Candidates.” Furthermore, in connection with our historical issuance of securities to foreign investors, under currently effective PRC laws, regulations and regulatory rules, as of the date of this annual report, we are not currently required to obtain permissions from the China Securities Regulatory Commission (the “CSRC”), and we have not received any formal notice from any PRC authority indicating that we should apply for or are otherwise subject to cybersecurity review or security assessment.
Risk Factors—Risks Related to Doing Business in the PRC,” “—Risks Related to Clinical Development of Our Product Candidates,” and “—Risks Related to Obtaining Regulatory Approval of Our Drug Candidates.” 84 Table of Contents Furthermore, in connection with our historical issuance of securities to foreign investors, under currently effective PRC laws, regulations and regulatory rules, as of the date of this annual report, we are not currently required to obtain permissions from the China Securities Regulatory Commission (the “CSRC”), and we have not received any formal notice from any PRC authority indicating that we should apply for or are otherwise subject to cybersecurity review or security assessment.
The Provisions on the Administration of Foreign Exchange in Foreign Direct Investments by Foreign Investors, which were promulgated by the SAFE in May 2013 and amended in October 2018 and December 2019, regulate and clarify the administration over foreign exchange administration in foreign direct investments. 142 Table of Contents SAFE promulgated the Notice by the SAFE of Further Deepening Reform and Promoting Cross-border Trade and Investment Facilitation, or Circular 28 in 2023, effective on December 4, 2023.
The Provisions on the Administration of Foreign Exchange in Foreign Direct Investments by Foreign Investors, which were promulgated by the SAFE in May 2013 and amended in October 2018 and December 2019, regulate and clarify the administration over foreign exchange administration in foreign direct investments. 150 Table of Contents SAFE promulgated the Notice by the SAFE of Further Deepening Reform and Promoting Cross-border Trade and Investment Facilitation, or Circular 28 in 2023, effective on December 4, 2023.
According to the Measures for the Exemption of Value-Added Tax from Cross-Border Taxable Activities in the Collection of Value-Added Tax in Lieu of Business Tax (for Trial Implementation) revised in June 2018, if domestic enterprises provide cross-border taxable activities such as professional technical services, technology transfer, software services, the above-mentioned cross-border taxable activities are exempt from VAT. 145 Table of Contents 4.C.
According to the Measures for the Exemption of Value-Added Tax from Cross-Border Taxable Activities in the Collection of Value-Added Tax in Lieu of Business Tax (for Trial Implementation) revised in June 2018, if domestic enterprises provide cross-border taxable activities such as professional technical services, technology transfer, software services, the above-mentioned cross-border taxable activities are exempt from VAT. 153 Table of Contents 4.C.
Upon termination of the Exelixis Agreement for any reason, the license granted to Exelixis will terminate. 110 Table of Contents Sanjin Collaboration/ Out-Licensing Agreements 2018 Collaboration Agreements In December 2018, we entered into (i) a collaboration agreement (the “Sanjin Greater China Agreement”) that covers Greater China with Guilin Sanjin Pharmaceutical Co., Ltd.
Upon termination of the Exelixis Agreement for any reason, the license granted to Exelixis will terminate. 118 Table of Contents Sanjin Collaboration/ Out-Licensing Agreements 2018 Collaboration Agreements In December 2018, we entered into (i) a collaboration agreement (the “Sanjin Greater China Agreement”) that covers Greater China with Guilin Sanjin Pharmaceutical Co., Ltd.
The Negative List covers 12 industries, and any field not falling under the Negative List shall be administered under the principle of equal treatment to domestic and foreign investment. Foreign Investment Law of the PRC, or the Foreign Investment Law, was promulgated by the National People’s Congress, or the NPC in March 2019 and came into effect in January 2020.
The Negative List covers 11 industries, and any field not falling under the Negative List shall be administered under the principle of equal treatment to domestic and foreign investment. Foreign Investment Law of the PRC, or the Foreign Investment Law, was promulgated by the National People’s Congress, or the NPC in March 2019 and came into effect in January 2020.
For the avoidance of doubt, as of the date of this annual report, the CD28 T-cell engagers have not entered into IND-enabling stage. 106 Table of Contents OUR PLATFORM Overview Our proprietary DPL platform is built upon our insights into precise and dynamic antibody-antigen interaction.
For the avoidance of doubt, as of the date of this annual report, the CD28 T-cell engagers have not entered into IND-enabling stage. 114 Table of Contents OUR PLATFORM Overview Our proprietary DPL platform is built upon our insights into precise and dynamic antibody-antigen interaction.
The primary responsibilities of the NMPA include: ● monitoring and supervising the administration of pharmaceutical products, medical appliances and equipment as well as cosmetics in the PRC; ● formulating administrative rules and policies concerning the supervision and administration of pharmaceutical, medical devices, and cosmetics industry; ● evaluating, registering and approving new drugs, generic drugs, imported drugs and traditional Chinese medicine; ● approving and issuing permits for the manufacture and export/import of pharmaceutical products, medical appliances and equipment; 128 Table of Contents ● approving the establishment of enterprises to be engaged in the manufacture and distribution of pharmaceutical products; ● examining and evaluating the safety of pharmaceutical products, medical devices, and cosmetics; and ● managing significant accidents involving pharmaceutical products, medical devices and cosmetics.
The primary responsibilities of the NMPA include: ● monitoring and supervising the administration of pharmaceutical products, medical appliances and equipment as well as cosmetics in the PRC; ● formulating administrative rules and policies concerning the supervision and administration of pharmaceutical, medical devices, and cosmetics industry; ● evaluating, registering and approving new drugs, generic drugs, imported drugs and traditional Chinese medicine; ● approving and issuing permits for the manufacture and export/import of pharmaceutical products, medical appliances and equipment; ● approving the establishment of enterprises to be engaged in the manufacture and distribution of pharmaceutical products; ● examining and evaluating the safety of pharmaceutical products, medical devices, and cosmetics; and ● managing significant accidents involving pharmaceutical products, medical devices and cosmetics.
Other than the above disclosed transfer of funds, we did not transfer any type of assets between Adagene Suzhou and other Adagene subsidiaries in 2021, 2022 and 2023. 85 Table of Contents Restrictions on Foreign Exchange and the Ability to Transfer Cash between Entities, Across Borders and to U.S.
Other than the above disclosed transfer of funds, we did not transfer any type of assets between Adagene Suzhou and other Adagene subsidiaries in 2022, 2023 and 2024. 85 Table of Contents Restrictions on Foreign Exchange and the Ability to Transfer Cash between Entities, Across Borders and to U.S.
ADG126 10 mpk Q3W + Pembro 3L MSS CRC Patient: Case Study of Confirmed PR and Reduced Liver Lesions We also presented a preliminary analysis of progression-free survival (PFS) in those MSS CRC patients free of liver and peritoneal metastasis; a median PFS of seven months was observed in those treated with ADG126 10 mg/kg at two dosing frequencies pooled together [every three weeks (n=9) and every six weeks (n=6)].
ADG126 10 mpk Q3W + Pembro 3L MSS CRC Patient: Case Study of Confirmed PR and Reduced Liver Lesions 98 Table of Contents We also presented a preliminary analysis of progression-free survival (PFS) in those MSS CRC patients free of liver and peritoneal metastasis; a median PFS of seven months was observed in those treated with ADG126 10 mg/kg at two dosing frequencies pooled together every three weeks (n=9) and every six weeks (n=6).
Taken together, these preclinical studies (summarized below) have demonstrated that ADG116 has at least a five-fold greater potency profile than ipilimumab, a commercially-available anti-CTLA-4 therapy, and superior activity in various tumor specific models, while its safety profile is at least three-fold better based on GLP monkey data. 101 Table of Contents ADG116 is designed to target a unique conserved epitope of CTLA-4.
Taken together, these preclinical studies (summarized below) have demonstrated that ADG116 has at least a five-fold greater potency profile than ipilimumab, a commercially-available anti-CTLA-4 therapy, and superior activity in various tumor specific models, while its safety profile is at least three-fold better based on GLP monkey data. ADG116 is designed to target a unique conserved epitope of CTLA-4.
On December 15, 2022, the PCAOB announced that it was able, in 2022, to inspect and investigate completely issuer audit engagements of PCAOB-registered public accounting firms headquartered in mainland China and Hong Kong and that it had vacated its 2021 Determinaitons accordingly.
On December 15, 2022, the PCAOB announced that it was able, in 2022, to inspect and investigate completely issuer audit engagements of PCAOB-registered public accounting firms headquartered in mainland China and Hong Kong and that it had vacated its 2021 Determinations accordingly.
It applies our proprietary SAFEbody technology to a parental antibody, ADG116, enabling ADG126 to be activated primarily in tumor tissues rather than healthy tissues, minimizing the risk of on-target, off-tumor toxicities. 91 Table of Contents In September 2022, we presented the first clinical results from our monotherapy evaluation in a poster presentation at the European Society of Medical Oncology (ESMO) annual congress.
It applies our proprietary SAFEbody technology to a parental antibody, ADG116, enabling ADG126 to be activated primarily in tumor tissues rather than healthy tissues, minimizing the risk of on-target, off-tumor toxicities. In September 2022, we presented the first clinical results from our monotherapy evaluation in a poster presentation at the European Society of Medical Oncology (ESMO) annual congress.
We expect to continue our relationships with WuXi Biologics while Adagene is continuously evaluating multiple global vendors to ensure continuous supply of Adagene pipeline products for on-going and planned clinical trials. COMPETITION The biotechnology and pharmaceutical industries are highly competitive and characterized by continuing technological advancement, significant competition and an emphasis on intellectual property.
We expect to continue our relationships with WuXi Biologics while Adagene is continuously evaluating multiple global vendors to ensure continuous supply of Adagene pipeline products for on-going and planned clinical trials. 124 Table of Contents COMPETITION The biotechnology and pharmaceutical industries are highly competitive and characterized by continuing technological advancement, significant competition and an emphasis on intellectual property.
See “Item 3 Key Information—3.D.Risk Factors—Risks Related to Doing Business in the PRC—Failure to comply with existing or future laws and regulations related to privacy or data security could lead to government enforcement actions, which could include civil or criminal fines or penalties, investigation or sanction by regulatory authorities, private litigation, other liabilities, and/or adverse publicity.” 84 Table of Contents Material Licenses and Approvals Our PRC subsidiary has obtained all material licenses and approvals required for our operations in China.
See “Item 3 Key Information—3.D.Risk Factors—Risks Related to Doing Business in the PRC—Failure to comply with existing or future laws and regulations related to privacy or data security could lead to government enforcement actions, which could include civil or criminal fines or penalties, investigation or sanction by regulatory authorities, private litigation, other liabilities, and/or adverse publicity.” Material Licenses and Approvals Our PRC subsidiary has obtained all material licenses and approvals required for our operations in China.
Other anti-CD137 monoclonal antibody candidates in earlier stages of development include YH004 from Eucure, EU101 from Eutilex, ATOR-1017 from Alligator Bioscience, LVGN6051 from Lyvgen, CTX-471 from Compass Therapeutics, and AGEN2373 from Agenus. INSURANCE We provide social security insurance including pension insurance, unemployment insurance, work-related injury insurance and medical insurance for our employees.
Other anti-CD137 monoclonal antibody candidates in earlier stages of development include YH004 from Eucure, EU101 from Eutilex, ATOR-1017 from Alligator Bioscience, LVGN6051 from Lyvgen, CTX-471 from Compass Therapeutics, and AGEN2373 from Agenus. 125 Table of Contents INSURANCE We provide social security insurance including pension insurance, unemployment insurance, work-related injury insurance and medical insurance for our employees.
Notwithstanding the submission of any requested additional information, the FDA ultimately may decide that the application does not satisfy the regulatory criteria for approval. 120 Table of Contents After the FDA evaluates a BLA and conducts inspections of manufacturing facilities where the commercial product and/or its drug substance will be produced, the FDA may issue an approval letter or a Complete Response letter.
Notwithstanding the submission of any requested additional information, the FDA ultimately may decide that the application does not satisfy the regulatory criteria for approval. After the FDA evaluates a BLA and conducts inspections of manufacturing facilities where the commercial product and/or its drug substance will be produced, the FDA may issue an approval letter or a Complete Response letter.
ADG116 was observed in this study to exhibit stronger antitumor activity than ipilimumab (ADG116 at 0.2 mg/kg induced equivalent antitumor response as 1 mg/kg of ipilimumab). 102 Table of Contents Preclinical Toxicology: We performed preclinical toxicology studies in cynomolgus monkeys and rats to evaluate the toxicity of ADG116. There were no abnormal findings in the single-dose toxicology studies.
ADG116 was observed in this study to exhibit stronger antitumor activity than ipilimumab (ADG116 at 0.2 mg/kg induced equivalent antitumor response as 1 mg/kg of ipilimumab). Preclinical Toxicology: We performed preclinical toxicology studies in cynomolgus monkeys and rats to evaluate the toxicity of ADG116. There were no abnormal findings in the single-dose toxicology studies.
In January 2023, we announced interim findings from these trials showing the combination safety profile and confirmed clinical responses with ADG126 up to 10 mg/kg with repeat cycles in combination with anti-PD-1 from the dose escalation portion of our ongoing phase 1b/2 studies.
In January 2023, we announced interim findings from the dose escalation portion of our ongoing phase 1b/2 studies showing the combination safety profile and confirmed clinical responses with ADG126 at up to 10 mg/kg with repeat cycles in combination with anti-PD-1.
For investigational products developed for oncology indications, the Phase I trials are normally conducted in patients with serious or life-threatening diseases without other treatment alternatives. 119 Table of Contents ● Phase II—The investigational product is administered to a limited patient population with a specified disease or condition to evaluate the preliminary efficacy, optimal dosages and dosing schedule and to identify possible adverse side effects and safety risks.
For investigational products developed for oncology indications, the Phase I trials are normally conducted in patients with serious or life-threatening diseases without other treatment alternatives. ● Phase II—The investigational product is administered to a limited patient population with a specified disease or condition to evaluate the preliminary efficacy, optimal dosages and dosing schedule and to identify possible adverse side effects and safety risks.
The SEC maintains an internet site at www.sec.gov that contains reports, information statements, and other information regarding issuers that file electronically with the SEC. Recent Regulatory Development Implication of the Holding Foreign Companies Accountable Act The Holding Foreign Companies Accountable Act (the “HFCAA”), was enacted on December 18, 2020.
The SEC maintains an internet site at www.sec.gov that contains reports, information statements, and other information regarding issuers that file electronically with the SEC. 81 Table of Contents Recent Regulatory Development Implication of the Holding Foreign Companies Accountable Act The Holding Foreign Companies Accountable Act (the “HFCAA”), was enacted on December 18, 2020.
Multiplex immunofluorescence analysis was performed by Dr. Joe Yeong’s lab at IMCB, A*STAR. Images were analyzed using HALO. Tregs were defined as Foxp3+ CD8- cells. Teff cells were defined as CD8+ T cells.
Multiplex immunofluorescence analysis was performed by Dr. Joe Yeong’s lab at IMCB, A*STAR. Images were analyzed using HALO. Tregs were defined as Foxp3+ CD8- cells.
Risk Factors–– The enactment of the Accelerating Holding Foreign Companies Accountable Act decreases the number of non-inspection years from three years to two, thus reducing the time period before our ADSs may be prohibited from trading on the Nasdaq Stock Market or in the over-the-counter market or delisted.” 81 Table of Contents On December 16, 2021, PCAOB issued the HFCAA Determination Report, according to which our auditor was subject to the determinations that the PCAOB is unable to inspect or investigate completely (the “2021 Determinaitons”).
Risk Factors––The enactment of the Accelerating Holding Foreign Companies Accountable Act decreases the number of non-inspection years from three years to two, thus reducing the time period before our ADSs may be prohibited from trading on the Nasdaq Stock Market or in the over-the-counter market or delisted.” On December 16, 2021, PCAOB issued the HFCAA Determination Report, according to which our auditor was subject to the determinations that the PCAOB is unable to inspect or investigate completely (the “2021 Determinations”).
If FDA determines the application is filable, the FDA’s goal is to review standard applications within ten months after it accepts the application for filing, or, if the application qualifies for priority review, six months after the FDA accepts the application for filing.
If FDA determines the application is fillable, the FDA’s goal is to review standard applications within ten months after it accepts the application for filing, or, if the application qualifies for priority review, six months after the FDA accepts the application for filing.
Both confirmed PRs were sustained after more than 55 weeks (over 14 cycles) of treatment, as of the ASCO GI data cut off. 94 Table of Contents We believe the robust safety profile of our masked anti-CTLA-4 SAFEbody ADG126 enables continuous dosing in combination with anti-PD-1 to drive the efficacy in patients with cold tumors such as MSS CRC, and in patients with PD-L1 low expressing or PD-1 resistant warm tumors.
Both confirmed PRs were sustained after more than 55 weeks (over 14 cycles) of treatment, as of the ASCO GI data cut off. 96 Table of Contents We believe the well-tolerated safety profile of our masked anti-CTLA-4 SAFEbody Ò ADG126 enables continuous dosing in combination with anti-PD-1 to drive the efficacy in patients with cold tumors such as MSS CRC, and in patients with PD-L1 low expressing or PD-1 resistant warm tumors.
Detailed implementation rules for drug classification and requirements for corresponding application materials will be promulgated by the NMPA. 129 Table of Contents In March 2016, the CFDA issued the Reform Plan for Registration Category of Chemical Medicine, which outlined the reclassifications of drug applications under the Registration Measures.
Detailed implementation rules for drug classification and requirements for corresponding application materials will be promulgated by the NMPA. In March 2016, the CFDA issued the Reform Plan for Registration Category of Chemical Medicine, which outlined the reclassifications of drug applications under the Registration Measures.
On February 9, 2021, the ADSs began trading on the Nasdaq under the symbol “ADAG.” Our corporate headquarters is located at 4F, Building C14, No. 218, Xinghu Street, Suzhou Industrial Park Suzhou, Jiangsu Province, 215123, People’s Republic of China. Our San Diego office address is 6042 Cornerstone Court West Suite E, San Diego, CA 92121.
On February 9, 2021, the ADSs began trading on the Nasdaq under the symbol “ADAG.” Our corporate headquarters is located at 4F, Building C14, No. 218, Xinghu Street, Suzhou Industrial Park Suzhou, Jiangsu Province, 215123, People’s Republic of China. Our San Diego office address is 6048 Cornerstone Court West Suite C, San Diego, CA 92121.
ADG126/ADG116 is designed to target CTLA-4 a unique and conserved epitope with species cross-reactivity for translational fidelity. 97 Table of Contents Moreover, ADG126 has been observed in preclinical animal studies to mediate effector functions to eliminate highly upregulated CTLA-4 expressing cells, particularly regulatory T-cells in the TME, primarily through its strong ADCC.
ADG126/ADG116 is designed to target CTLA-4 a unique and conserved epitope with species cross-reactivity for translational fidelity. Moreover, ADG126 has been observed in preclinical animal studies to mediate effector functions to eliminate highly upregulated CTLA-4 expressing cells, particularly regulatory T-cells in the TME, primarily through its strong ADCC.
A filing-based regulatory regime is adopted to regulate both direct and indirect overseas securities offering and listing by the domestic companies undert the Trial Measures.
A filing-based regulatory regime is adopted to regulate both direct and indirect overseas securities offering and listing by the domestic companies under the Trial Measures.
Currently, the Cybersecurity Review Measures and the Draft Data Security Regulations have not materially affected our business and operations, but in anticipation of the strengthened implementation of cybersecurity laws and regulations and the continued expansion of our business, we face potential risks if we are deemed as a critical information infrastructure operator, a network platform operator or data processing operator under the PRC cybersecurity laws and regulations.
Currently, the Cybersecurity Review Measures and the Regulation on Network Data Security Management have not materially affected our business and operations, but in anticipation of the strengthened implementation of cybersecurity laws and regulations and the continued expansion of our business, we face potential risks if we are deemed as a critical information infrastructure operator, a network platform operator or data processing operator under the PRC cybersecurity laws and regulations.
There were no intercompany loans provided by Adagene Inc. to Adagene Suzhou during the years ended and as of December 31, 2021, 2022 and 2023.
There were no intercompany loans provided by Adagene Inc. to Adagene Suzhou during the years ended and as of December 31, 2022, 2023 and 2024.
At the active, potent dose of 10 mg/kg Q3W, we observed two confirmed PRs in 12 evaluable patients resulting in a 17% overall response rate, or a 22% response rate in the subset of nine of these patients without peritoneal or liver metastases.
At the active, potent dose of 10 mg/kg Q3W, we observed two confirmed PRs in 12 evaluable patients resulting in a 17% overall response rate (ORR), or a 22% response rate in the subset of nine patients without peritoneal and liver metastases.
It also targets regulatory T-cells for depletion within the TME by means of ADCC, to mediate antitumor T-cell immunity. 98 Table of Contents We evaluated the in vivo antitumor efficacy of ADG126 in syngeneic mouse tumor models.
It also targets regulatory T-cells for depletion within the TME by means of ADCC, to mediate antitumor T-cell immunity. 103 Table of Contents 104 Table of Contents We evaluated the in vivo antitumor efficacy of ADG126 in syngeneic mouse tumor models.
ADG206 demonstrated enhanced anti-tumor activity as a single agent and in combination with other checkpoint inhibitors, including anti-PD-1 or anti-CTLA-4 therapy. We believe that the safety and efficacy profiles of ADG206 strongly supports its potential as a combination agent. Clinical Development Status: ADG206 is currently in phase 1 development with monotherapy dose escalation ongoing.
ADG206 demonstrated enhanced anti-tumor activity as a single agent and in combination with other checkpoint inhibitors, including anti-PD-1 or anti-CTLA-4 therapy. We believe that the safety and efficacy profiles of ADG206 strongly supports its potential as a combination agent. Clinical Development Status: ADG206 is currently in phase 1 development.
If any patents issue from our pending patent applications, excluding any patent term adjustments and patent term extension, such patents will be expected to expire from 2033 to 2043.
If any patents issue from our pending patent applications, excluding any patent term adjustments and patent term extension, such patents will be expected to expire from 2033 to 2044.
The Regulations of the PRC on the Administration of Human Genetic Resources, which was promulgated by the State Council in May 2019 and came into effect in July 2019, further stipulates that, in order to obtain marketing authorization for relevant drugs and medical devices in China, no approval is required in international clinical trial cooperation using China’s human genetic resources at clinical institutions without export of human genetic resource materials.
The Regulations of the PRC on the Administration of Human Genetic Resources, which was promulgated by the State Council in May 2019 and the latest amendment was promulgated in March 2024 and came into effect in May 2024, further stipulates that, in order to obtain marketing authorization for relevant drugs and medical devices in China, no approval is required in international clinical trial cooperation using China’s human genetic resources at clinical institutions without export of human genetic resource materials.
The submission of a BLA requires payment of a substantial application user fee to the FDA unless a waiver or exemption applies. Once an original BLA has been submitted, FDA has 60 days to determine whether the application can be filed.
The submission of a BLA requires payment of a substantial application user fee to the FDA unless a waiver or exemption applies. 128 Table of Contents Once an original BLA has been submitted, FDA has 60 days to determine whether the application can be filed.
These anti-CTLA-4 therapies in development in China include HBM4003 from Harbour BioMed and CD1002 from CStone Pharmaceuticals (Suzhou) Co., Ltd. Major limitations of anti-CTLA-4 mAbs include toxicity. According to our internal market analysis, nivolumab and ipilimumab combination therapy has shown relatively higher toxicity in clinical studies even at lower dosages, which was observed from the published clinical data.
These anti-CTLA-4 therapies in development in China include HBM4003 from Harbour BioMed and CS1002/SHR-8068 from CStone/Hengrui Pharmaceuticals (Suzhou) Co., Ltd. Major limitations of anti-CTLA-4 mAbs include toxicity. According to our internal market analysis, nivolumab and ipilimumab combination therapy has shown relatively higher toxicity in clinical studies even at lower dosages, which was observed from the published clinical data.
ADG138 is currently IND-ready. ● ADG152 : This CD20xCD3 POWERbody integrates the company’s proprietary bispecific TCE platform with SAFEbody precision masking technology to minimize cytokine release syndrome (CRS) and on-target off-tumor toxicities for an increased therapeutic index.
ADG138 is currently IND-ready. 113 Table of Contents ● ADG152 : This CD20xCD3 POWERbody integrates the company’s proprietary bispecific TCE platform with SAFEbody precision masking technology to minimize cytokine release syndrome (CRS) and on-target off-tumor toxicities for an increased therapeutic index.
ADG206 incorporates SAFEbody precision masking technology and is designed to achieve improved safety and efficacy. ADG206 has demonstrated enhanced crosslinking by FcgRIIb in vitro upon activation and antitumor activity in vivo, while the SAFEbody masking technology limits on-target off-tumor toxicities by preferential activation in the TME.
ADG206 incorporates SAFEbody Ò precision masking technology and is designed to achieve improved safety and efficacy. ADG206 has demonstrated enhanced crosslinking by Fc g RIIb in vitro upon activation and antitumor activity in vivo, while the SAFEbody Ò masking technology limits on-target off-tumor toxicities by preferential activation in the TME.
As of February 29, 2024, Yervoy (ipilimumab) from BMS and Imjudo (tremelimumab) from AstraZeneca are the two marketed anti-CTLA-4 therapies approved by FDA for various cancer indications. Iplilimumab is approved both as a monotherapy and a combination therapy in seven indications, while tremelimumab is approved as a combination therapy for two indications.
As of February 28, 2025, Yervoy (ipilimumab) from BMS and Imjudo (tremelimumab) from AstraZeneca are the two marketed anti-CTLA-4 therapies approved by FDA for various cancer indications. Iplilimumab is approved both as a monotherapy and a combination therapy in seven indications, while tremelimumab is approved as a combination therapy for two indications.
It also remains uncertain whether the future regulatory changes will impose additional restrictions on companies like us. We cannot predict the impact of the Cybersecurity Review Measures and/or the Draft Data Security Regulations, if any, at this stage, and we will closely monitor and assess any development in the rule-making process.
It also remains uncertain whether the future regulatory changes will impose additional restrictions on companies like us. We cannot predict the impact of the Cybersecurity Review Measures and/or the Regulation on Network Data Security Management, if any, at this stage, and we will closely monitor and assess any development in the rule-making process.
Additionally, we have two IND-ready preclinical programs (ADG153, a masked, IgG1 anti-CD47 SAFEbody, and ADG138, a novel HER2xCD3 POWERbody bispecific TCE that is masked on both arms), as well as another preclinical program (ADG152, a CD20xCD3 POWERbody with masking on the CD3 arm) in the IND-enabling phase.
Additionally, we have two IND-ready preclinical programs (ADG138, a novel HER2xCD3 POWERbody Ò bispecific TCE that is masked on both arms, and ADG153, a masked, IgG1 anti-CD47 SAFEbody), as well as another preclinical program (ADG152, a CD20xCD3 POWERbody with masking on the CD3 arm) in the IND-enabling phase. We have multiple masked T-cell engagers in discovery.
Title of Patent Type of Patent (1) Jurisdiction 13877452.6 An Integrated System for Library Construction, Affinity Binder Screening and Expression Thereof Method European Patent Office 201380074656.1 An Integrated System for Library Construction, Affinity Binder Screening and Expression Thereof Method China 14908246.3 Methods and Systems for Autoinduction of Protein Expression Method European Patent Office 15536939 Methods and Systems for Autoinduction of Protein Expression Method United States of America 201480084652.6 Methods and Systems for Autoinduction of Protein Expression Method China 201410789857.6 Filter Vector System And Its Applications Method China 16108018 Anti-CD137 Molecules and Use Thereof Composition of matter United States of America 16640684 Method for Treating Cancer using anti-CD137 antibody Method United States of America 16640673 Dynamic Human Antibody Light Chain Libraries Library United States of America 16640679 Dynamic Human Heavy Chain Antibody Libraries Library United States of America 16265946 Anti-CTLA-4 Antibodies And Methods of Making and Using the Same Composition of matter United States of America 16966844 Anti-CTLA4 Antibodies And Methods of Making and Using the Same Composition of matter United States of America (1) You should read the Risk Factors included elsewhere in this annual report for important information about risks posed by the loss of patent protection, in particular the risks described under “Item 3 Key Information—3.D.Risk Factors—Risks Related to Our Intellectual Property.” We continually assess and refine our intellectual property strategy as we develop new platform technologies and product candidates.
Title of Patent Type of Patent (1) Jurisdiction 13877452.6 An Integrated System for Library Construction, Affinity Binder Screening and Expression Thereof Method European Patent Office 201380074656.1 An Integrated System for Library Construction, Affinity Binder Screening and Expression Thereof Method China 14908246.3 Methods and Systems for Autoinduction of Protein Expression Method European Patent Office 15536939 Methods and Systems for Autoinduction of Protein Expression Method United States of America 201480084652.6 Methods and Systems for Autoinduction of Protein Expression Method China 201410789857.6 Filter Vector System And Its Applications Method China 16108018 Anti-CD137 Molecules and Use Thereof Composition of matter United States of America 16640684 Method for Treating Cancer using anti-CD137 antibody Method United States of America 202010923848.7 Anti-CD137 Molecules and Use Thereof Composition of matter China 16640673 Dynamic Human Antibody Light Chain Libraries Library United States of America 201780095710.9 Dynamic Human Antibody Light Chain Libraries Library China 16640679 Dynamic Human Heavy Chain Antibody Libraries Library United States of America 201780094151.X Dynamic Human Heavy Chain Antibody Libraries Library China 16265946 Anti-CTLA-4 Antibodies And Methods of Making and Using the Same Composition of matter United States of America 16966844 Anti-CTLA4 Antibodies And Methods of Making and Using the Same Composition of matter United States of America 17043454 Anti-PD-L1 Antibodies and Use Thereof Composition of matter United States of America 16966848 Activatable Antibodies and Methods of Making and Using thereof Composition of matter United States of America (1) You should read the Risk Factors included elsewhere in this annual report for important information about risks posed by the loss of patent protection, in particular the risks described under “Item 3 Key Information—3.D.Risk Factors—Risks Related to Our Intellectual Property.” 123 Table of Contents We continually assess and refine our intellectual property strategy as we develop new platform technologies and product candidates.
However, the type, quantity and usage of the human genetic resource to be used shall be filed with the administrative department of science and technology under the State Council before clinical trials.
However, the type, quantity and usage of the human genetic resource to be used shall be filed with the administrative department of health under the State Council before clinical trials.
Product Candidates Title of Patent Application Type of Patent Applications (1) Jurisdiction ADG126 Anti-CTLA-4 antibodies and methods of making and using the same Composition of matter/ method of use/ method of making United States of America, China and European Patent Office ADG116 Anti-CTLA-4 antibodies and methods of making and using the same Composition of matter/ method of use/ method of making United States of America, China and European Patent Office ADG206 Anti-CD137 antibodies and methods of making and using the same Composition of matter/method of use/method of making Patent Cooperation Treaty (2) ADG106 Anti-CD137 molecules and uses thereof Combination therapy comprising anti-CD137 antibodies Composition of matter/ method of use/ method of making method of treatment/ method of use United States of America China and European Patent Office ADG104 Anti-PD-L1 antibodies and use thereof Composition of matter/ method of use/ method of making United States of America and European Patent Office ADG125 Anti-CSF1R molecules and use thereof Composition of matter/method of use/method of making United States of America and European Patent Office (1) You should read the Risk Factors included elsewhere in this annual report for important information about risks posed by the loss of patent protection, in particular the risks described under “Item 3 Key Information—3.D.Risk Factors—Risks Related to Our Intellectual Property.” (2) Patent Application of ADG206 has not yet entered into national phase of Patent Cooperation Treaty. 114 Table of Contents The following table summarizes material issued patents in the United States, Europe and China covering our proprietary technologies and product candidates. Application No.
Product Candidates Title of Patent Application Type of Patent Applications (1) Jurisdiction ADG126 Anti-CTLA-4 antibodies and methods of making and using the same Composition of matter/ method of use/ method of making United States of America, China and European Patent Office ADG116 Anti-CTLA-4 antibodies and methods of making and using the same Composition of matter/ method of use/ method of making United States of America, China and European Patent Office ADG206 Anti-CD137 antibodies and methods of making and using the same Composition of matter/method of use/method of making United States of America, China and European Patent Office ADG106 Anti-CD137 molecules and uses thereof Combination therapy comprising anti-CD137 antibodies Composition of matter/ method of use/ method of making method of treatment/ method of use United States of America China and European Patent Office ADG104 Anti-PD-L1 antibodies and use thereof Composition of matter/ method of use/ method of making United States of America and European Patent Office ADG125 Anti-CSF1R molecules and use thereof Composition of matter/method of use/method of making United States of America and European Patent Office (1) You should read the Risk Factors included elsewhere in this annual report for important information about risks posed by the loss of patent protection, in particular the risks described under “Item 3 Key Information—3.D.Risk Factors—Risks Related to Our Intellectual Property.” 122 Table of Contents The following table summarizes material issued patents in the United States, Europe and China covering our proprietary technologies and product candidates. Application No.
In addition to the marketed anti-CTLA-4 therapies, there are multiple “next generation” anti-CTLA-4 antibodies in clinical development globally. Examples of these programs include: Agenus (Zalifrelimab/AGEN1181), Bristol-Myers Squibb Company (BMS-986288), Merck (quavonlimab/MA-1308), Onco-C4, Inc. (ONC-392) and Xilio (XTX101). Yervoy was also approved in China in 2021, where additional CTLA-4 antibodies are in clinical development.
In addition to the marketed anti-CTLA-4 therapies, there are multiple “next generation” anti-CTLA-4 antibodies in clinical development globally. Examples of these programs include: Agenus (Zalifrelimab/AGEN1181), Merck (quavonlimab/MA-1308), Onco-C4, Inc. (ONC-392) and Xilio (XTX101). Yervoy was also approved in China in 2021, where additional CTLA-4 antibodies are in clinical development.
To further advance our pipeline, we have also put in place various clinical collaborations, including an agreement with Roche who is sponsoring and conducting a triple combination trial with ADG126, atezolizumab and bevacizumab in first-line hepatocellular carcinoma (HCC), clinical collaborations and supply agreements with Merck who will provide pembrolizumab for certain of our combination clinical trials, and an agreement with research organizations in Singapore for investigator-initiated trials of our ADG106 clinical candidate in combination settings.
To further advance our pipeline, we have also put in place various clinical collaborations, including an agreement with Roche who is sponsoring and conducting a triple combination trial with ADG126, atezolizumab and bevacizumab in first-line hepatocellular carcinoma (HCC), clinical collaborations and supply agreements with Merck who provides pembrolizumab for certain of our combination clinical trials, and agreements with research organizations in Singapore for investigator-initiated trials of our clinical candidates.
We reported data in 22 efficacy evaluable patients who received either 10 mg/kg Q6W (n=10) or 10 mg/kg Q3W (n=12). We also stratified the findings by peritoneal metastases, which is an indicator of rapidly progressing disease.
We reported data in 22 efficacy evaluable patients who received either 10 mg/kg Q6W (n=10) or 10 mg/kg Q3W (n=12) ADG126 in combination with pembrolizumab (200 mg, Q3W). We also stratified the findings by peritoneal metastases, which is an indicator of rapidly progressing disease.
Analysis of a clinical sample from a hepatocellular carcinoma (HCC) patient previously treated with atezolizumab and bevacizumab and then followed by lenvatinib demonstrated about nine-fold Teff/Treg improved ratio after dosing relative to before dosing due to reduction in Tregs and improvement in T effector cells.
Analysis of a clinical sample from a hepatocellular carcinoma (HCC) patient previously treated with atezolizumab and bevacizumab and then followed by lenvatinib demonstrated ADG126 monotherapy improved Teff/Treg ratio by approximately nine-fold relative to before dosing due to reduction in the Tregs and improvement in the T effector cells.
The presentation at AACR included a larger number of patients (N=30) and further reinforced the compelling, best-in-class safety profile at dosing levels up to 20 mg/kg in a heavily pretreated patient population (majority received ≥3 prior lines of therapy) once every three weeks with repeat dosing. No Grade 3 or higher TRAEs were reported.
The presentation at AACR included a larger number of patients (N=30) and further reinforced the compelling, best-in-class safety profile at dosing levels up to 20 mg/kg in a heavily pretreated patient population (majority received ≥3 prior lines of therapy) once every three weeks with repeat dosing.
The FDA closely regulates the marketing, labeling, advertising and promotion of biologics. A company can make only those claims relating to safety and efficacy, purity and potency that are approved by the FDA and in accordance with the provisions of the approved label. The FDA and other agencies actively enforce the laws and regulations prohibiting the promotion of off-label uses.
A company can make only those claims relating to safety and efficacy, purity and potency that are approved by the FDA and in accordance with the provisions of the approved label. The FDA and other agencies actively enforce the laws and regulations prohibiting the promotion or advertising of off-label uses.
ADG152 is currently in the IND-enabling phase. ● CD28 T-cell engagers : We are developing anti-CD28 bispecific POWERbody TCEs that exhibit enormous potential to fulfill the promises of safe and durable T-cell mediated synergistic immunotherapies when combined with CD3 bispecific POWERbody TCEs and/or checkpoint inhibitors.
ADG153 is currently IND-ready. ● CD28 T-cell engagers : We are developing anti-CD28 bispecific POWERbody TCEs that exhibit enormous potential to fulfill the promises of safe and durable T-cell mediated synergistic immunotherapies when combined with CD3 bispecific POWERbody TCEs and/or checkpoint inhibitors.
Both patients had either liver or lung metastases. These results support further evaluation of ADG116 (which is the activated form of ADG126) in combination with pembrolizumab in difficult-to-treat and cold tumor types such as MSS-CRC. Clinical Development Status Clinical data to date has demonstrated that ADG116 is clinically active and ready to advance into further clinical development as resources allow.
Both patients had either liver or lung metastases. These results support further evaluation of ADG116 (which is the activated form of ADG126) in combination with pembrolizumab in difficult-to-treat and cold tumor types such as MSS-CRC. 109 Table of Contents Clinical Development Status Clinical data to date has demonstrated that ADG116 is clinically active.
In 2021, 2022 and 2023, Adagene Inc. made payments of US$30.0 million, US$24.5 million and US$20.5 million, respectively, in cash to Adagene Suzhou as consideration for providing services associated with research and development activities related to those intellectual properties owned by Adagene Inc.
In 2022, 2023 and 2024, Adagene Inc. made payments of US$24.5 million, US$20.5 million and US$16.3 million, respectively, in cash to Adagene Suzhou as consideration for providing services associated with research and development activities related to those intellectual properties owned by Adagene Inc.
This analysis suggests prolonged exposures of activated ADG126 in the tumor microenvironment (TME), with cleaved ADG126 on average accumulating ≥3-fold during repeat dosing, associated with the longer half-life of total ADG126 and its preferential accumulation in TME compared with its parental antibody.
This analysis suggests prolonged exposures of activated ADG126 in the tumor microenvironment (TME), with cleaved ADG126 on average accumulating ≥3-fold during repeat dosing; data also showed a longer half-life of total ADG126 and its preferential accumulation in TME compared with its parental antibody ADG116.
Thus, development of next generation anti-CTLA-4 therapies with an improved safety profile and antitumor efficacy through enhanced CTLA-4 blockage and/or Treg depletion are urgently needed to improve upon existing anti-CTLA-4 therapies, as well as open the new doors to treat cold tumors such as MSS-CRC.
Thus, development of next generation anti-CTLA-4 therapies with an improved safety profile and antitumor efficacy through enhanced CTLA-4 blockage and/or Treg depletion is urgently needed to improve upon existing anti-CTLA-4 therapies, as well as opens the new doors to treat immunogenically “cold” tumors such as MSS CRC.
In a four-week GLP repeat-dose toxicology studies, intravenous infusion of ADG126 to cynomolgus monkeys at 5, 30, or 200 mg/kg/dose once weekly for five doses followed by a 28-day recovery period was well-tolerated.
All mice survived after six treatments of ADG126 at 50 mg/kg. In a four-week GLP repeat-dose toxicology studies, intravenous infusion of ADG126 to cynomolgus monkeys at 5, 30, or 200 mg/kg/dose once weekly for five doses followed by a 28-day recovery period was well-tolerated.
Recently it was amended in December 2023 and will come into effect on July 1, 2024. According to the PRC Company Law, companies are generally classified into two categories: limited liability companies and companies limited by shares. The PRC Company Law also applies to foreign-invested limited liability companies.
Recently it was amended in December 2023 and has come into effect on July 1, 2024. According to the PRC Company Law, companies are generally classified into two categories: limited liability companies and companies limited by shares.
Pilot Plan for the MAH System The Innovation Opinions provide a pilot plan for the MAH system. 132 Table of Contents Under the authorization of the Standing Committee of the NPC, the General Office of the State Council issued the Pilot Plan for the Drug Marketing Authorization Holder Mechanism in May 2016, which provides a detailed pilot plan for the MAH system in 10 Chinese provinces.
Under the authorization of the Standing Committee of the NPC, the General Office of the State Council issued the Pilot Plan for the Drug Marketing Authorization Holder Mechanism in May 2016, which provides a detailed pilot plan for the MAH system in 10 Chinese provinces.
Clinical development of this candidate is ongoing. 111 Table of Contents 2019 Collaboration Agreements In May 2019, we entered into (i) a collaboration agreement that covers Greater China (the “Dragon Boat Greater China Agreement”) and (ii) a collaboration agreement that covers the regions other than Greater China (the “Dragon Boat ROW Agreement,” together with the Dragon Boat Greater China Agreement, the “2019 Dragon Boat Agreements”), with Dragon Boat Biopharmaceutical (Shanghai) Limited.
This program is currently in Phase 2 clinical development. 119 Table of Contents 2019 Collaboration Agreements In May 2019, we entered into (i) a collaboration agreement that covers Greater China (the “Dragon Boat Greater China Agreement”) and (ii) a collaboration agreement that covers the regions other than Greater China (the “Dragon Boat ROW Agreement,” together with the Dragon Boat Greater China Agreement, the “2019 Dragon Boat Agreements”), with Dragon Boat Biopharmaceutical (Shanghai) Limited.
Such laws include, without limitation: ● the U.S. federal Anti-Kickback Statute, which prohibits, among other things, persons and entities from knowingly and willfully soliciting, receiving, offering or paying remuneration, to induce, or in return for, either the referral of an individual, or the purchase or recommendation of an item or service for which payment may be made under any federal healthcare program; ● federal civil and criminal false claims laws, including the civil False Claims Act, and civil monetary penalty laws, which prohibit, among other things, individuals or entities from knowingly presenting, or causing to be presented, claims for payment to the federal government, including federal healthcare programs, that are false or fraudulent; ● the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which created additional federal criminal statutes which prohibit, among other things, executing a scheme to defraud any healthcare benefit program and making false statements relating to healthcare matters, and which, as amended by the Health Information Technology for Economic and Clinical Health Act of 2009, or HITECH, also imposes certain requirements on HIPAA covered entities and their business associates relating to the privacy, security and transmission of individually identifiable health information; ● the U.S. federal Physician Payments Sunshine Act, which requires certain manufacturers of drugs, devices, biologics and medical supplies for which payment is available under Medicare, Medicaid or the Children’s Health Insurance Program, with specific exceptions, to annually report to the federal government, information related to payments or other transfers of value made to physicians, as defined by such law, certain other health care providers beginning in 2022, and teaching hospitals, as well as ownership and investment interests held by physicians and their immediate family members; and ● United States state and foreign law equivalents of each of the above federal laws, which, in some cases, differ from each other in significant ways, and may not have the same effect, thus complicating compliance efforts, including laws governing the privacy and security of personal data, such as the GDPR, which imposes obligations and restrictions on the collection and use of personal data relating to individuals located in the EU and EEA (including with regard to health data). 124 Table of Contents If their operations are found to be in violation of any of such laws or any other governmental regulations that apply, they may be subject to significant penalties, including, without limitation, civil, criminal and administrative penalties, damages, fines, exclusion from government-funded healthcare programs, such as Medicare and Medicaid or similar programs in other countries or jurisdictions, integrity oversight and reporting obligations to resolve allegations of non-compliance, disgorgement, imprisonment, contractual damages, reputational harm, diminished profits and the curtailment or restructuring of our operations.
Such laws include, without limitation: ● the U.S. federal Anti-Kickback Statute, which prohibits, among other things, persons and entities from knowingly and willfully soliciting, receiving, offering or paying remuneration, to induce, or in return for, either the referral of an individual, or the purchase or recommendation of an item or service for which payment may be made under any federal healthcare program; ● federal civil and criminal false claims laws, including the civil False Claims Act, and civil monetary penalty laws, which prohibit, among other things, individuals or entities from knowingly presenting, or causing to be presented, claims for payment to the federal government, including federal healthcare programs, that are false or fraudulent; 132 Table of Contents ● the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which created additional federal criminal statutes which prohibit, among other things, executing a scheme to defraud any healthcare benefit program and making false statements relating to healthcare matters, and which, as amended by the Health Information Technology for Economic and Clinical Health Act of 2009, or HITECH, also imposes certain requirements on HIPAA covered entities and their business associates relating to the privacy, security and transmission of individually identifiable health information; ● the U.S. federal Physician Payments Sunshine Act, which requires certain manufacturers of drugs, devices, biologics and medical supplies for which payment is available under Medicare, Medicaid or the Children’s Health Insurance Program, with specific exceptions, to annually report to the federal government, information related to payments or other transfers of value made to physicians, as defined by such law, certain other health care providers beginning in 2022, and teaching hospitals, as well as ownership and investment interests held by physicians and their immediate family members; and ● United States state and foreign law equivalents of each of the above federal laws, which, in some cases, differ from each other in significant ways, and may not have the same effect, thus complicating compliance efforts, including laws governing the privacy and security of personal data, such as the GDPR, which imposes obligations and restrictions on the collection and use of personal data relating to individuals located in the EU and EEA (including with regard to health data).