Shots: AbbVie has entered into a definitive agreement to acquire Capstan Therapeutics, including its P-I CPTX2309 and proprietary tLNP platform for in vivo RNA delivery to treat B-cell-mediated autoimmune diseases As per the deal, Capstan will receive up to $2.1B in cash, pending customary closing conditions and regulatory approvals CPTX2309 is a tLNP delivering mRNA…