Following a May phase II readout and a recent presentation of Tourmaline Bio Inc.’s long-acting anti-IL-6 IgG2 monoclonal antibody, pacibekitug, for atherosclerotic cardiovascular disease (ASCVD), Novartis AG offered $1.4 billion, or $48 per share, to buy the barely 4-year-old company. Previously shelved by Pfizer Inc., which had been developing it for autoimmune disorders, pacibekitug fell into the hands of New York-based Tourmaline through a May 2022 license agreement. In addition to the Tranquility phase II trial in ASCVD, the company’s lead product is also in the phase IIb Spirited trial for thyroid eye disease, a readout for which is expected in early 2026.

Less than two years old, Tourmaline Bio Inc. is gaining a public listing through a reverse merger with publicly traded Talaris Therapeutics Inc., as it enters a phase IIb with its lead IL-6 inhibitor for thyroid eye disease (TED).