Pfizer Inc. is paying Innovent Biologics Co. Ltd. $650 million up front and up to $9.85 billion in milestones, plus royalties, to collaborate across 12 early stage and de novo antibody-drug conjugates (ADCs) and multispecific antibodies for oncology.
Minneapolis-based Celcuity Inc. was like the Rolling Stones at the 2026 American Society of Clinical Oncology annual meeting. The company reported positive phase III data for its pan-PI3K/mTORC1/2 inhibitor gedatolisib, but Celcuity (NASDAQ:CELC) couldn’t get any satisfaction from investors who sent shares down 25.7%, or $31.54, to $91.42 on June 2, 2026.
At the 2026 American Society of Clinical Oncology annual meeting, multiple companies presented data for their drugs targeting WEE1, a checkpoint for the transition from G2 into mitosis. Aprea Therapeutics Inc. presented phase 1 data for its WEE1 inhibitor APR-1051 in patients with advanced solid tumors showing two patients with endometrial cancers achieved partial responses in the dose-escalation study. Likewise, Zentalis Pharmaceuticals Inc. had tantalizing early results from a phase Ib study showing azenosertib plus paclitaxel in patients with platinum-resistant ovarian cancer produced an overall response rate of 39% with a median progression-free survival of 7.3 months.
