SHANGHAI, Jan. 17, 2025 (GLOBE NEWSWIRE) -- Shanghai Junshi Biosciences Co., Ltd (Junshi Biosciences, HKEX: 1877; SSE: 688180), a leading innovation-driven biopharmaceutical company dedicated to the discovery, development, and commercialization of novel therapies, and its wholly-owned subsidiary, TopAlliance Biosciences Inc. (TopAlliance Biosciences), announced that toripalimab, the anti-PD-1 monoclonal antibody self-developed by the company, has obtained the marketing authorization issued by the Therapeutic Goods Administration of the Australian Government Department of Health and Aged Care (the TGA). The New Chemical Entity (the NCE) application for toripalimab in combination with cisplatin and gemcitabine, for the first-line treatment of adults with metastatic or recurrent, locally advanced nasopharyngeal carcinoma (NPC) and toripalimab, as a single agent, for the treatment of adults with recurrent unresectable or metastatic NPC with disease progression on or after a platinum-containing chemotherapy has been approved by TGA. Toripalimab has become the first and only immuno-onocology treatment for NPC in Australia.
This NCE application was submitted under Project Orbis. Project Orbis, initiated and advocated by the Oncology Center of Excellence (OCE) of the US Food and Drug Administration (the FDA), provides a collaborative mechanism and framework among the FDA and regulatory authorities in other countries and regions allowing different regulatory authorities to jointly review the applications for registration of oncology drugs. Toripalimab was the first domestic oncology drug included in Project Orbis. Additionally, the TGA also granted an orphan drug designation to toripalimab for the treatment of NPC, which has accelerated the review and registration process to a certain extent.
General Manager and CEO of Junshi Biosciences, Dr. Jianjun ZOU, said, Toripalimab has made significant strides in its internationalization. As of today, toripalimab has been approved in 35 countries across four continents and offers hope to patients worldwide. This recent approval in Australia is not only extremely meaningful to the nasopharyngeal carcinoma patients there, but it also represents our companys continued efforts toward globalization. In the following days, we will closely collaborate with our partner Dr. Reddys Laboratory to expedite toripalimabs availability in Australia, ensuring that local patients can benefit from this treatment as soon as possible.
M.V. Ramana, CEO of Branded Markets, Dr. Reddys, said: This approval is a significant milestone in our collaborative efforts with Junshi Biosciences to make their novel treatment available to patients around the world. Toripalimab is the first and only immuno-onocology treatment for nasopharyngeal carcinoma in Australia, and meets a significant unmet need for patients. In oncology, our offerings aim to build an end-to-end ecosystem of care access to current standard of care cancer medicines across multiple countries globally, innovation in formulations, strategic collaborations for novel innovative molecules, beyond-the-pill support such as nutrition and digital tools. Following our successful launch of toripalimab in India, we are looking forward to bringing it to patients in Australia and other markets in the coming days.
NPC is a malignant tumor that occurs in the epithelium mucosae of the nasopharynx and is one of the most common types of head and neck cancers. According to GLOBOCAN 2022 statistics, the number of newly diagnosed NPC cases in 2022 exceeded 120,000 worldwide. Toripalimab is the only preferred regimen recommended for the comprehensive treatment of recurrent or metastatic NPC in the National Comprehensive Cancer Network (NCCN) Guidelines (Version 1.2025) for head and neck cancers.
The approval of the NPC indications is primarily based on the results from JUPITER-02 (a randomized, double-blind, placebo-controlled, multinational multi-center Phase 3 clinical study for the first-line treatment of NPC, NCT03581786), and the results from POLARIS-02 (a multi-center, open-label, pivotal Phase 2 clinical study for second-line or later treatment of recurrent or metastatic NPC, NCT02915432).
The JUPITER-02 study is the first international multi-center, double-blind, randomized Phase 3 clinical study in NPC immunotherapy with the largest sample size, and is the worlds first Phase 3 clinical study in which there is preset statistical verification (Type I error control) for Overall Survival (OS) in first-line immunotherapy combined with chemotherapy for NPC compared to chemotherapy alone that demonstrated a survival benefit. The results of the study were presented in an oral report during the Plenary Session of the 2021 annual meeting of the American Society of Clinical Oncology (ASCO) (#LBA2), and were subsequently featured on the cover of Nature Medicine (IF: 58.7). The results were also published in full in the Journal of the American Medical Association (JAMA, IF: 63.1). The results of the study showed that, compared to chemotherapy alone, toripalimab in combination with chemotherapy reduced the risk of disease progression by 48% and the risk of death by 37%. The median progression-free survival (PFS) in the toripalimab in combination with chemotherapy group was prolonged by 13.2 months compared to chemotherapy alone, from 8.2 months to 21.4 months. In addition, patients treated with this combined therapy achieved a higher objective response rate (ORR) and longer duration of response (DoR), with a complete response (CR) rate of 26.7%, and no new safety signal was identified. Long-term survival follow-up data was presented at ASCO 2024, with a 5-year survival rate of 52%.
The POLARIS-02 results were published online in January 2021 in the Journal of Clinical Oncology. The results showed that toripalimab demonstrated durable antitumor activity and a manageable safety profile in patients with recurrent or metastatic NPC who had failed prior chemotherapy, with an ORR of 20.5%, a DoR of 12.8 months, and a median OS of 17.4 months.
As of today, toripalimab has been approved for marketing in over 35 countries and regions in 4 continents, including China, Hong Kong SAR, the United States, the European Union, the UK, Australia, India, Jordan, etc.