AbbVie has agreed to acquire Capstan Therapeutics, Inc., a biotechnology firm focused on in vivo targeted lipid nanoparticle (tLNP) anti-CD19 CAR-T cell therapy development. The deal is valued at $2.1 billion as of the June 2025 announcement date.

AcquirerAbbVie
TargetCapstan Therapeutics, Inc.
Value$2.1 billion
TypeAcquisition
Closing DateNot disclosed
Announcement DateJune 2025

The transaction aims to strengthen AbbVie's immunotherapy portfolio with Capstan Therapeutics' novel tLNP technology, designed for efficient in vivo delivery of anti-CD19 chimeric antigen receptor (CAR) T-cell therapy.

Capstan Therapeutics' lead candidate is a first-in-class therapeutic that offers a new approach to CAR-T cell treatment, potentially bypassing the logistical challenges and risks associated with ex vivo manufacturing. This deal underscores AbbVie's commitment to advancing cellular therapies and enhancing its competitive edge in the rapidly evolving oncology space.

Financial details such as key terms and advisors were not disclosed by either company. The $2.1 billion valuation reflects Capstan Therapeutics' innovative technology and potential market leadership in the emerging in vivo CAR-T platform sector, which is expected to see significant growth over the next decade.