BioWorld Asia: The Weekly Biopharmaceutical News Source for Asia-Pacific

Alteogen in $1.35B Medimmune deal; Astrazeneca bids $1B for Esobiotec
Alteogen Inc. signed its first billion-dollar partnership this year for ALT-B4 technology through two separate contracts with Astrazeneca plc’s U.K.- and U.S.-based Medimmune subsidiaries worth up to $1.35 billion combined.

Alteogen in $1.35B Medimmune deal; Astrazeneca bids $1B for Esobiotec
Alteogen Inc. signed its first billion-dollar partnership this year for ALT-B4 technology through two separate contracts with Astrazeneca plc’s U.K.- and U.S.-based Medimmune subsidiaries worth up to $1.35 billion combined.
Taiho acquiring Araris in $1.14B ADC deal
The antibody-drug conjugate (ADC) juggernaut powers on, with Japan’s Taiho Pharmaceutical Co. set to acquire Araris Biotech AG for up to $1.14 billion. Of that, $400 million will be up front, with the remainder tied to milestones with a maximum value of $740 million, around the progress of three ADCs for treating solid and hematological cancers.
Insilico advancing AI platform with $110M Asian-backed series E round
Artificial intelligence (AI) drug developer Insilico Medicine raised $110 million in a series E round led by an Asian private equity fund, Value Partners Group, that will see Insilico advance its pipeline and AI platform developments.
Ono scoops Ionis' hematology candidate sapablursen for up to $940M
Ono Pharmaceutical Co. Ltd. struck a licensing deal with Ionis Pharmaceuticals Inc. for sapablursen, which is in phase II trials for polycythemia vera. Under terms, Osaka, Japan-based Ono gains an exclusive license to develop and commercialize sapablursen worldwide. Carlsbad, Calif.-based Ionis will be responsible for completing the ongoing phase II Imprssion study, while Ono will be responsible for subsequent development, regulatory filings and commercialization.
Japan’s Regcell launches in US with $45.8M to advance Treg platform
Japanese-founded Regcell Inc. has raised $45.8 million and is redomiciling to the U.S. to accelerate clinical development of its pioneering regulatory T-cell (Treg) platform for autoimmune diseases and transplantation.
China accepts NDA of influenza tablet, clears Tepezza biosimilar
China’s National Medical Products Administration (NMPA) approved the country’s first injectable teprotumumab biosimilar from Innovent Biologics Inc. under the brand name of Sycume (teprotumumab N-01) to treat thyroid eye disease on March 14. The NMPA on March 15 accepted Simcere Pharmaceutical Group Ltd.’s NDA of deunoxavir marboxil (ADC-189) tablets, a product originally developed by Jiaxing Andicon Biotech Co. Ltd. to treat influenza A and B.
Visen announces HKD$603M Hong Kong IPO
Visen Pharmaceuticals Co. Ltd. announced its initial public offering (IPO) on the Hong Kong Stock exchange (HKEX) to raise roughly HKD$603.3 million (US$77.6 million) to advance its pipeline of endocrinology assets.
Healios posts more upbeat data on Multistem cell therapy for ARDS
Latest findings on Healios K.K.’s stem cell therapy to treat acute respiratory distress syndrome (ARDS), coined Multistem (invimestrocel; HLCM-051), found the regenerative medicine effective in reducing the number of patient days on ventilator treatment, as well as mortality benefits.
News in brief
BioWorld Asia briefs for March 18, 2025
Celltrion wins FDA approval of denosumab, omalizumab biosimilars
Celltrion Inc. is on a biosimilar roll with the U.S. FDA this month, having gained clearance of Stoboclo and Osenvelt as products referencing Amgen Inc.’s biologic, denosumab (Prolia, Xgeva), along with Omlyclo becoming the first and only interchangeable biosimilar to omalizumab (Xolair, Genentech Inc. and Novartis AG).
Aim seeks approval of first serum-free human rabies vaccine
Aim Vaccine Co. Ltd. may become the first company to gain regulatory clearance of a prophylactic iterative serum-free human rabies vaccine. Beijing-based Aim said it is preparing a regulatory submission of its independently developed rabies vaccine based on positive phase III results that showed good safety, immunogenicity and immune persistence.
Long COVID science is progressing, though therapies have not yet followed
In 2020, the Conference on Retroviruses and Opportunistic Infections (CROI) was the first scientific conference to move from in-person to virtual due to the COVID-19 pandemic. On the fifth anniversary of the virtual conference, and the pandemic, some of those earliest COVID-19 patients have still not recovered.
GSK’s $1.15B Idrx buyout leads slow M&A market as deals stay strong
Biopharma deal activity climbed in early 2025, reaching $37.38 billion in the first two months, up from $35.66 billion a year ago. February saw $8.76 billion in deals, down 69% from January’s $28.63 billion, which included 11 transactions valued at $1 billion or more. Early 2025 saw the second-highest biopharma deal total on record, trailing only the $42.19 billion logged in the first two months of 2022.

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