On July 16, 2023 Antengene Corporation Limited ("Antengene" SEHK: 6996.HK), a leading innovative, commercial-stage global biopharmaceutical company dedicated to discovering, developing and commercializing first-in-class and/or best-in-class therapeutics in hematology and oncology, reported that the Department of Health, the Government of the Hong Kong Special Administrative Region (HKSAR) has approved a New Drug Application (NDA) for XPOVIO (selinexor), applicable in combination with dexamethasone (Xd), for the treatment of adult patients with relapsed and/or refractory multiple myeloma (R/R MM) who have received at least four prior therapies and whose disease is refractory to at least two proteasome inhibitors (PIs), two immunomodulatory agents (IMiDs), an anti-CD38 monoclonal antibody, and who have demonstrated disease progression on the last therapy (Press release, Antengene, JUL 16, 2023, View Source [SID1234633247]).
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XPOVIO is the world’s first oral selective inhibitor of the nuclear export protein (XPO1), with regulatory approvals in 41 countries and regions including the United States, Israel, the United Kingdom, the European Union (the 27 member countries including France and Italy), Canada, Norway, Iceland, Lichtenstein, South Korea, mainland of China, Taiwan China, Hong Kong China, Singapore, Australia and Northern Ireland. To date, 6 XPOVIO regimens received a total of 27 inclusions into 7 clinical guidelines of major oncology societies in the U.S., the EU, and APAC, including 5 regimens for the treatment of myeloma and 1 regimen for the treatment of lymphoma added to the guidelines of the National Cancer Care Network (NCCN); 4 regimens for the treatment of myeloma and 1 regimen for the treatment of lymphoma added to the guidelines of the Chinese Society of Clinical Oncology (CSCO); 5 regimens for the treatment of myeloma added to the guidelines for the Diagnosis and Management of First Relapsed Multiple Myeloma in China; 4 regimens for the treatment of myeloma added to the guidelines for the Diagnosis and Management of Multiple Myeloma in China; 4 regimens for the treatment of myeloma added to the China Anti-Cancer Association’s Guidelines for the Holistic lntegrative Management of Cancers (CACA); 2 regimens for the treatment of myeloma added to the guidelines of the European Society of Medical Oncology (ESMO) (Free ESMO Whitepaper); and 1 regimen for the treatment of myeloma added to the guidelines of the International Myeloma Working Group (IMWG).
"Antengene is very pleased to receive regulatory approval for XPOVIO in Hong Kong. Despite recent advances in the treatment of R/R MM, there remains an unmet need to extend survival for patients with this life-threatening disease and the approval of XPOVIO presents Hong Kong patients with access to a novel therapy in their treatment of R/R MM. We will continue to build out Antengene’s presence across APAC markets and strive to expand the indications of XPOVIO in Hong Kong and the broader APAC region, in efforts to bring renewed hope to more cancer patients." said Thomas Karalis, Antengene’s Corporate Vice President, Head of Asia Pacific Region.
"I am pleased that XPOVIO has become the first and only XPO1 inhibitor approved for the treatment of R/R MM in Hong Kong," said Dr. Jay Mei, Antengene’s Founder, Chairman and CEO. Dr. Mei continued, "the Company’s Named Patient Program (NPP), a growing group of investigator-sponsored studies and ongoing advisory boards have helped us to ready the path for the successful adoption of XPOVIO in Hong Kong. Moving forward, we will establish access to ASEAN markets that have a total population exceeding 600 million. To date, Antengene has successfully submitted NDAs in Macau China, Thailand, Malaysia and Indonesia."
About Multiple Myeloma
Multiple myeloma (MM) is caused by the dysregulated proliferation of plasma cells. It is the second most common hematologic malignancy in many countries. Despite availability of a number of treatments for relapsed patients, MM is prone to relapse and most patients still succumb to their disease. MM is the second most common hematologic malignancy in China, with an estimated about 15,000 to 20,000 new MM patients and 10,300 deaths per year.[1]
About XPOVIO (selinexor)
XPOVIO is the world’s first approved orally-available, selective inhibitor of the nuclear export protein XPO1. It offers a novel mechanism of action, synergistic effects in combination regimens, fast onset of action, and durable responses.
By blocking the nuclear export protein XPO1, XPOVIO can promote the intranuclear accumulation and activation of tumor suppressor proteins and growth regulating proteins, and down-regulate the levels of multiple oncogenic proteins. XPOVIO delivers its antitumor effects through three mechanistic pathways: 1) exerting antitumor effects by inducing the intranuclear accumulation of tumor suppressor proteins; 2) reducing the level of oncogenic proteins in the cytoplasm by inducing the intranuclear accumulation of oncogenic mRNAs; 3) restoring hormone sensitivity by activating the glucocorticoid receptors (GR) pathway. To utilize its unique mechanism of actions, XPOVIO is being evaluated for use in multiple combination regimens in a range of indications. At present, Antengene is conducting 8 clinical studies of XPOVIO in mainland of China for the treatment of relapsed/refractory hematologic malignancies and solid tumors (3 of these studies are being jointly conducted by Antengene and Karyopharm Therapeutics Inc. [Nasdaq:KPTI]).
XPOVIO is approved in South Korea for the following two indications:
In combination with dexamethasone for the treatment of adult patients with relapsed or refractory multiple myeloma (R/R MM) who have received at least four prior therapies and whose disease is refractory to at least two proteasome inhibitors, at least two immunomodulatory agents, and an anti-CD38 monoclonal antibody.
As a monotherapy for the treatment of adult patients with relapsed or refractory diffuse large B-cell lymphoma (R/R DLBCL), not otherwise specified, including DLBCL arising from follicular lymphoma, after at least 2 lines of systemic therapy.
XPOVIO is approved in mainland of China for the following indication:
In combination with dexamethasone for the treatment of adult patients with relapsed or refractory multiple myeloma (R/R MM) who have received prior therapies and whose disease is refractory to at least one proteasome inhibitor, at least one immunomodulatory agent, and an anti-CD38 monoclonal antibody.
XPOVIO is approved in Taiwan China for the following three indications:
In combination with dexamethasone (Xd) for the treatment of adult patients with relapsed or refractory multiple myeloma (R/R MM) who have received at least four prior therapies and whose disease is refractory to at least two proteasome inhibitors (PIs), at least two immunomodulatory agents (IMiDs), and an anti-CD38 monoclonal antibody.
In combination with bortezomib and dexamethasone (XVd) for the treatment of adult patients with MM who have received at least on prior therapy.
As a monotherapy for the treatment of adult patients with relapsed or refractory diffuse large B-cell lymphoma (R/R DLBCL) , not otherwise specified, including DLBCL arising from follicular lymphoma, after at least 2 lines of systemic therapy.
XPOVIO is approved in Hong Kong China, for the following indication:
In combination with dexamethasone for the treatment of adult patients with relapsed or refractory multiple myeloma (R/R MM) who have received at least four prior therapies and whose disease is refractory to at least two proteasome inhibitors (PIs), two immunomodulatory agents (IMiDs), an anti-CD38 monoclonal antibody (mAb), and who have demonstrated disease progression on the last therapy.
XPOVIO is approved in Australia for the following two indications:
In combination with bortezomib and dexamethasone (XVd) for the treatment of adult patients with multiple myeloma (MM) who have received at least one prior therapy.
In combination with dexamethasone (Xd) for the treatment of adult patients with relapsed or refractory multiple myeloma (R/R MM) who have received at least three prior therapies and whose disease is refractory to at least one proteasome inhibitor (PI), at least one immunomodulatory agent (IMiD), and an anti-CD38 monoclonal antibody (mAb).
XPOVIO is approved in Singapore for the following three indications:
In combination with bortezomib and dexamethasone for treatment of adult patients with multiple myeloma (MM) who have received at least one prior therapy.
In combination with dexamethasone for the treatment of adult patients with relapsed or refractory multiple myeloma (R/R MM) who have received at least four prior therapies and whose disease is refractory to at least two proteasome inhibitors, at least two immunomodulatory agents, and an anti-CD38 monoclonal antibody.
As a monotherapy for the treatment of adult patients with relapsed or refractory diffuse large B-cell lymphoma (R/R DLBCL), not otherwise specified, including DLBCL arising from follicular lymphoma, after at least 2 lines of systemic therapy who are not eligible for haematopoietic cell transplant.