HMDCF HUTCHMED China Ltd (PK)

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 6-K

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REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE

SECURITIES EXCHANGE ACT OF 1934

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For the Month of May 2024

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Commission File Number: 001-37710

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HUTCHMED (CHINA) LIMITED

(Translation of registrant’s name into English)

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48th Floor, Cheung Kong Center, 2 Queen’s Road Central, Hong Kong

(Address of principal executive offices)

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Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

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Form 20-F  ⌧             Form 40-F  ◻

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HUTCHMED (CHINA) LIMITED

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Form 6-K

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EXHIBIT INDEX

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SIGNATURE

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Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

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Date: May 14, 2024

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Exhibit 99.1

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Press Release

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HUTCHMED Initiates Phase II/III Trial of the Combination of Surufatinib and Camrelizumab for Treatment-Naïve Pancreatic Ductal Adenocarcinoma in Collaboration with Hengrui

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— Almost half a million people diagnosed each year across the globe —

— Collaboration based on synergistic potential of inhibiting angiogenesis and tumor-associated macrophages with HUTCHMED’s surufatinib and anti-PD-1 activity with Hengrui’s camrelizumab, promoting the immune response against tumor cells —

Hong Kong, Shanghai & Florham Park, NJ —  Tuesday, May 14, 2024: HUTCHMED (China) Limited (“HUTCHMED”) (Nasdaq/AIM:HCM; HKEX:13) today announces the initiation of a Phase II/III trial to evaluate the efficacy of a combination of the HUTCHMED drug candidate surufatinib, the Jiangsu Hengrui Pharmaceuticals Co., Ltd (“Hengrui Pharma”) PD-1 antibody camrelizumab, nab-paclitaxel and gemcitabine as a first-line treatment for patients with metastatic pancreatic ductal adenocarcinoma (“PDAC”) in China. PDAC is an exocrine tumor and the most common form of pancreatic cancer. The first patient received the first dose on May 8, 2024.

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PDAC is a highly aggressive form of cancer, representing over 90% of pancreatic cancer cases. Globally, an estimated 511,000 people were diagnosed with pancreatic cancer, leading to approximately 467,000 deaths in 2022, with an average five-year survival rate of less than 10%. In China, an estimated 119,000 people were diagnosed with pancreatic cancer, causing approximately 106,000 deaths in 2022.¹ Treatments such as chemotherapy, surgery and radiation are commonly employed, but have not shown significant improvement in patient outcomes. Under 20% of metastatic pancreatic cancer patients survive more than a year.²

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The trial is a multicenter, randomized, open-label, active-controlled, Phase II/III trial to evaluate the efficacy and safety of surufatinib combined with camrelizumab, nab-paclitaxel, and gemcitabine versus nab-paclitaxel plus gemcitabine as a treatment for adults with metastatic pancreatic cancer who have not been previously treated with a systemic anti-tumor therapy. After an initial safety run-in stage, the Phase II/III stage of the study may enroll a further 500 patients, with a primary endpoint of overall survival (OS). Other endpoints include objective response rate (ORR), progression free survival (PFS), disease control rate (DCR), safety, quality of life, duration of response and time to response. Additional details may be found at clinicaltrials.gov, using identifier NCT06361888.

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Dr Weiguo Su, Chief Executive Officer and Chief Scientific Officer of HUTCHMED, said, “Emerging data including those from an investigator-initiated study presented at the ASCO Gastrointestinal Cancers Symposium, demonstrated that combinations of surufatinib, camrelizumab and chemotherapy have promising efficacy in comparison with existing chemotherapy-based treatments in metastatic PDAC.³ We hope that this partnership will enable us to bring new, potentially life-changing treatment options to patients.”

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About Surufatinib

Surufatinib is a novel, oral angio-immuno kinase inhibitor that selectively inhibits the tyrosine kinase activity associated with vascular endothelial growth factor receptors (VEGFRs) and fibroblast growth factor receptor (FGFR), which both inhibit angiogenesis, and colony stimulating factor-1 receptor (CSF-1R), which regulates tumor-associated macrophages, promoting the body’s immune response against tumor cells. Its unique dual mechanism of action may be very suitable for possible combinations with other immunotherapies, where there may be synergistic anti-tumor effects.

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Surufatinib is marketed in China by HUTCHMED under the brand name SULANDA^®, and was first included in the China National Reimbursement Drug List (NRDL) in January 2022 for the treatment of non-pancreatic and pancreatic neuroendocrine tumors (NETs).

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About Camrelizumab

Camrelizumab (SHR-1210) is a humanized monoclonal antibody targeting the programmed death-1 (PD-1) receptor. Blockade of the PD-1/PD-L1 signaling pathway is a therapeutic strategy showing success in a wide variety of solid and hematological cancers. Currently, more than 10 clinical trials are underway worldwide in a broad range of tumors  and treatment settings.

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Camrelizumab, under the brand name AiRuiKa^®, is currently approved for nine indications in China, including hepatocellular carcinoma (“HCC”) (second-line and first-line), relapsed/refractory classic Hodgkin’s lymphoma (third-line), esophageal squamous cell carcinoma (second-line) and nasopharyngeal carcinoma (third-line or further) and in combination with chemotherapy for the treatment of non-small cell lung cancer (non-squamous and squamous), esophageal squamous cell carcinoma, and nasopharyngeal carcinoma in the first-line setting. All indications have been included in China’s national medical insurance catalog, making it the leading domestic PD-1 product in terms of approved indications and tumor types covered. The U.S. Food and Drug Administration (“FDA”) granted Orphan Drug Designation to camrelizumab for advanced HCC in April 2021, and accepted a New Drug Application (NDA) for camrelizumab and rivoceranib as a first-line therapy for unresectable HCC, with FDA Prescription Drug User Fee Act (PDUFA) dates in May 2024.

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About Hengrui Pharma

Hengrui Pharma is a leading global pharmaceutical company headquartered in China with a focus on research, development, manufacturing, and commercialization of innovative and high-quality healthcare products. Innovation is the core development strategy. Hengrui Pharma ranked 24^th among top 1,000 global pharmaceutical companies in 2021. Hengrui Pharma has been on the Pharma Exec’s annual listing of the top 50 global pharmaceutical companies for the fifth consecutive year.

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About HUTCHMED

HUTCHMED (Nasdaq/AIM:​HCM; HKEX:​13) is an innovative, commercial-stage, biopharmaceutical company. It is committed to the discovery, global development and commercialization of targeted therapies and immunotherapies for the treatment of cancer and immunological diseases. It has approximately 5,000 personnel across all its companies, at the center of which is a team of about 1,800 in oncology/immunology. Since inception, HUTCHMED has focused on bringing cancer drug candidates from in-house discovery to patients around the world. Its first three medicines are marketed in China, the first of which is also marketed in the U.S. For more information, please visit: www.hutch-med.com or follow us on LinkedIn.

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Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the “safe harbor” provisions of the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements reflect HUTCHMED’s current expectations regarding future events, including its expectations regarding the therapeutic potential of surufatinib for the treatment of patients with PDAC and the further development of surufatinib in this and other indications. Forward-looking statements involve risks and uncertainties. Such risks and uncertainties include, among other things, assumptions regarding the timing and outcome of clinical studies and the sufficiency of clinical data to support an NDA submission of surufatinib for the treatment of patients with PDAC or other indications in China or other jurisdictions, its potential to gain approvals from regulatory authorities on an expedited basis or at all, the efficacy and safety profile of surufatinib, HUTCHMED’s ability to fund, implement and complete its further clinical development and commercialization plans for surufatinib and the timing of these events. In addition, as certain studies rely on the use of other drug products such as camrelizumab as combination therapeutics with surufatinib, such risks and uncertainties include assumptions regarding the safety, efficacy, supply and continued regulatory approval of these therapeutics. Existing and prospective investors are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. For further discussion of these and other risks, see HUTCHMED’s filings with the U.S. Securities and Exchange Commission, The Stock Exchange of Hong Kong Limited and on AIM. HUTCHMED undertakes no obligation to update or revise the information contained in this press release, whether as a result of new information, future events or circumstances or otherwise.

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Medical Information

This press release contains information about products that may not be available in all countries, or may be available under different trademarks, for different indications, in different dosages, or in different strengths. Nothing contained herein should be considered a solicitation, promotion or advertisement for any prescription drugs including the ones under development.

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CONTACTS

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REFERENCES

¹ The Global Cancer Observatory, World Fact Sheets. Accessed April 9, 2024.

² Sarantis P et al. Pancreatic ductal adenocarcinoma: Treatment hurdles, tumor microenvironment and immunotherapy. World J Gastrointest Oncol. 2020;12(2):173-181. DOI:10.4251/wjgo.v12.i2.173

³ Jia R et al. Updated results of a phase 1b/2 study of surufatinib plus camrelizumab, nab-paclitaxel and S-1 (NASCA) as first-line therapy for metastatic pancreatic adenocarcinoma (mPDAC). JCO 42, 671-671(2024). DOI:10.1200/JCO.2024.42.3_suppl.671

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Exhibit 99.2

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Press Release

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HUTCHMED Initiates the RAPHAEL Registrational Phase III Trial of HMPL-306 for Patients with IDH1- and/or IDH2-Mutated Relapsed/Refractory Acute Myeloid Leukemia in China

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Hong Kong, Shanghai & Florham Park, NJ — Tuesday, May 14, 2024: HUTCHMED (China) Limited (“HUTCHMED”) (Nasdaq/AIM:HCM; HKEX:13) today announces that it has initiated a registrational Phase III clinical trial of HMPL-306 in patients with mutated isocitrate dehydrogenase (“IDH”) 1 or 2 relapsed / refractory acute myeloid leukemia (“AML”) in China. The first patient received their first dose on May 11, 2024.

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HMPL-306 is a novel dual-inhibitor of IDH1 and IDH2 enzymes. Mutations of IDH1 and IDH2 have been implicated as drivers of certain hematological malignancies, gliomas and solid tumors, particularly among AML patients. Although some IDH inhibitors have been approved in certain markets for AML, isoform switching between the cytoplasmic mutant IDH1 and mitochondrial mutant IDH2 often leads to acquired resistance to single inhibitors of IDH1 or IDH2. Targeting both IDH1 and IDH2 mutations may provide therapeutic benefits in cancer patients by overcoming this acquired resistance.

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RAPHAEL is a multicenter, randomized, open-label, registrational Phase III clinical trial designed to evaluate the safety and efficacy of HMPL-306 as a monotherapy in patients with relapsed or refractory AML harboring IDH1 and/or IDH2 mutations. The primary endpoint of overall survival (OS) and the secondary endpoints, including event-free survival (EFS) and complete remission (“CR”) rate, will be tested in comparison with current salvage chemotherapy regimens. The Company is looking to enroll approximately 320 patients for this registrational study, which is being led by principal investigator Prof Xiaojun Huang of Peking University People’s Hospital. Additional details may be found at clinicaltrials.gov, using identifier NCT06387069.

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The study follows positive data from a two-stage, open-label Phase I study evaluating the safety, pharmacokinetics, pharmacodynamics and efficacy of HMPL-306 in this indication (NCT04272957). The first-in-human dose-escalation stage data was presented at the European Hematology Association Congress (“EHA”) in June 2023.¹ Results of the dose expansion stage of the study in over 50 patients demonstrated promising CR rates at the recommended Phase II dose are expected to be presented at the EHA Congress in June 2024.

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About IDH and Hematological Malignancies

IDHs are critical metabolic enzymes that help to break down nutrients and generate energy for cells. When mutated, IDH creates a molecule that alters the cell’s genetic programming and prevents cells from maturing. IDH1 or IDH2 mutations are common genetic alterations in various types of blood and solid tumors, including AML with approximately 14-20% of patients having mutant IDH genes, myelodysplastic syndrome (MDS), myeloproliferative neoplasms (MPNs), low-grade glioma and intrahepatic cholangiocarcinoma. Mutant IDH isoform switching, either from cytoplasmic mutant IDH1 to mitochondrial mutant IDH2, or vice versa, is a mechanism of acquired resistance to IDH inhibition in AML and cholangiocarcinoma.^2,3,4

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According to the National Cancer Institute (NCI), there will be approximately 20,380 new cases of AML in the U.S. in 2023 and the five-year relative survival rate is 31.7%⁵. Currently, the U.S. Food and Drug Administration (FDA) has approved two drugs for IDH1 mutation and one drug for IDH2 mutation, but no dual inhibitor targeting both IDH1 and IDH2 mutants has been approved. There were an estimated 19,700 new cases of AML in China in 2018 and is estimated to reach 24,200 in China in 2030.⁶  In China one IDH1 inhibitor was approved in 2022.

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About HUTCHMED

HUTCHMED (Nasdaq/AIM:​HCM; HKEX:​13) is an innovative, commercial-stage, biopharmaceutical company. It is committed to the discovery, global development and commercialization of targeted therapies and immunotherapies for the treatment of cancer and immunological diseases. It has approximately 5,000 personnel across all its companies, at the center of which is a team of about 1,800 in oncology/immunology. Since inception, HUTCHMED has focused on bringing cancer drug candidates from in-house discovery to patients around the world, with its first three medicines now marketed in China, the first of which is also marketed in the U.S. For more information, please visit: www.hutch-med.com or follow us on LinkedIn.

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Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the “safe harbor” provisions of the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements reflect HUTCHMED’s current expectations regarding future events, including its expectations regarding the therapeutic potential of HMPL-306 for the treatment of patients with relapsed or refractory AML and the further development of HMPL-306 in this and other indications. Forward-looking statements involve risks and uncertainties. Such risks and uncertainties include, among other things, assumptions regarding the timing and outcome of clinical studies and the sufficiency of clinical data to support an NDA submission of HMPL-306 for the treatment of patients with relapsed or refractory AML or other indications in China or other jurisdictions, its potential to gain approvals from regulatory authorities on an expedited basis or at all, the efficacy and safety profile of HMPL-306, HUTCHMED’s ability to fund, implement and complete its further clinical development and commercialization plans for HMPL-306 and the timing of these events. Existing and prospective investors are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. For further discussion of these and other risks, see HUTCHMED’s filings with the U.S. Securities and Exchange Commission, The Stock Exchange of Hong Kong Limited and on AIM. HUTCHMED undertakes no obligation to update or revise the information contained in this press release, whether as a result of new information, future events or circumstances or otherwise.

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Medical Information

This press release contains information about products that may not be available in all countries, or may be available under different trademarks, for different indications, in different dosages, or in different strengths. Nothing contained herein should be considered a solicitation, promotion or advertisement for any prescription drugs including the ones under development.

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CONTACTS

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REFERENCES

¹ Hu L et al. P539: A Phase 1 Study of HMPL-306, a Dual Inhibitor of Mutant Isocitrate Dehydrogenase (IDH) 1 and 2, in Patients with Relapsed/Refractory Myeloid Hematological Malignancies Harboring IDH1 and/or 2 Mutations. Hemasphere. 2023;7(Suppl):e86312d3. Published 2023 Aug 8. doi:10.1097/01.HS9.0000969064.86312.d3.

² S Choe S et al. Blood 2019;134(Supplement_1):545. doi:10.1182/blood-2019-122671.

³ Harding JJ et al. Isoform Switching as a Mechanism of Acquired Resistance to Mutant Isocitrate Dehydrogenase Inhibition. Cancer Discov. 2018;8(12):1540-1547. doi:10.1158/2159-8290.CD-18-0877.

⁴ Delahousse J et al. Circulating oncometabolite D-2-hydroxyglutarate enantiomer is a surrogate marker of isocitrate dehydrogenase-mutated intrahepatic cholangiocarcinomas. Eur J Cancer. 2018;90:83-91. doi:10.1016/j.ejca.2017.11.024.

⁵ Source: National Cancer Institute – seer.cancer.gov/statfacts/html/amyl.html.

⁶ Lin J et al. IDH1 and IDH2 mutation analysis in Chinese patients with acute myeloid leukemia and myelodysplastic syndrome. Ann Hematol. 2012;91(4):519-525. doi:10.1007/s00277-011-1352-7.