Infectious disease-focused biopharma stocks, tracked on the BioWorld Infectious Disease Index (BIDI), saw their collective shares roughly follow the path of broader markets like the Nasdaq Biotechnology Index (NBI) and the Dow Jones Industrial Average (DJIA) in early 2026. The BIDI ended April up 3.8%, followed by the DJIA with a 3.31% gain and 2.73% for the NBI, following a similar pattern to 2025.
Tumor-associated calcium signal transducer 2 (TROP2) is a transmembrane glycoprotein involved in different signaling pathways that promote proliferation, migration and invasion of tumoral cells, and its overexpression is associated with poor prognosis in multiple cancer types. Astellas Pharma Inc. has developed a TROP2-targeting antibody-drug conjugate (ADC), ASP-2998, and recently presented preclinical data on the candidate.
Astellas Pharma Inc. and Vir Biotechnology Inc. have signed a global co-development pact to advance VIR-5500, Vir’s PRO-XTEN dual-masked CD3 T-cell engager targeting prostate-specific membrane antigen for treating prostate cancer. Under the deal terms, San Francisco-based Vir will receive $335 million in up-front and near-term payments, including $240 million in cash, $75 million in equity investment and a $20 million near-term milestone. Vir is also eligible to receive up to $1.37 billion in development, regulatory and sales-based milestones plus royalties on ex-U.S. sales.
Astellas Pharma Inc. recently presented data regarding ASP-2246, a drug candidate comprised of an mRNA encoding the transcription factor NeuroD1 encapsulated in lipid nanoparticles.
At the Biotech Showcase 2026 – part of the broader hoopla in San Francisco surrounding the J.P. Morgan 2026 Healthcare Conference – a panel of investors and another of pharma dealmakers discussed what to expect from drug company deals in 2026. The calendar flipping marks a good time to look ahead, but the delineation doesn’t really change anything for dealmakers who have experienced a slow shift in attitudes of investors over the last few months that will likely continue into the year ahead.
Raqualia Pharma Inc.’s Fimecs Inc. subsidiary has agreed with Astellas Pharma Inc. to add two new targets under their ongoing joint research. They entered into an agreement in 2022 to conduct joint research on targeted protein degradation.
The full rights to Taysha Gene Therapies Inc.’s lead gene therapy candidate are coming back to the company. In 2022, Astellas Pharma Inc. invested $50 million in Taysha for 15% of the company and the exclusive option to license TSHA-102 for treating the rare disease Rett syndrome. That option has expired, according to Taysha.
Astellas Pharma Inc. reported Oct. 14 that its CLDN18.2-targeting monoclonal antibody, zolbetuximab (Vyloy), did not meet the primary endpoint of overall survival in the phase II Gleam trial of patients with advanced pancreatic cancer.
In yet another China antibody-drug conjugate (ADC) deal, Astellas Pharma Inc. is inlicensing a phase I/II ADC targeting Claudin 18.2 from Evopoint Biosciences Co. Ltd. for up to $1.34 billion.
