Immune checkpoint inhibitor therapy has proven effective against many types of solid tumors, but not many subtypes of ovarian cancer, including the rare subtype of ovarian clear cell carcinoma (OCCC). Now, researchers have identified a subtype of OCCC that involves inactivating mutations in the gene PPP2R1A and that responds well to immune checkpoint inhibitor therapy.
Radiopharm Theranostics Ltd. announced that the U.S. FDA has cleared the IND application for betabart (RV-01), its Lu177-B7H3 monoclonal antibody designed with strong affinity for the 4Ig isoform of B7-H3 that is highly expressed in tumors and not in healthy tissues.
Activating apoptosis of tumor cells by binding a soluble form of the membrane protein TRAIL to its surface receptors DR4 and DR5 on the tumor surface shows promise as a cancer therapy, but the ligand on its own has only a minutes-long half-life and does not strongly activate the receptors.
The U.S. FDA has cleared Zymeworks Inc.’s IND application for ZW-251, a novel glypican-3 (GPC3)-targeted antibody-drug conjugate (ADC) incorporating the company’s proprietary topoisomerase 1 (TOPO1) inhibitor payload, ZD-06519, for the treatment of hepatocellular carcinoma (HCC).
Researchers at the Fred Hutchinson Cancer Research Center found that autoantibodies targeting the exoproteome reshaped checkpoint inhibitor responses and opened new avenues to enhance immunotherapy. In the study published in the July 23, 2025, issue of Nature, the authors set out to address a long-standing question in cancer immunotherapy: why patients with the same type of cancer, treated with the same immunotherapy, can experience such drastically different outcomes.
Crossbow Therapeutics Inc. has nominated its second development candidate, CBX-663, a T-cell engager for the treatment of a broad range of solid tumors and hematologic malignancies.
The combination of interleukin-2 (IL-2) agonism with programmed cell death protein 1 (PD-1) checkpoint inhibition has previously demonstrated synergistic efficacy in promoting antitumor T-cell responses. However, the incompatible dose levels and dosing schedules of the two therapeutic mechanisms have made their integration within a single molecule challenging.
Akari Therapeutics plc announced that it is continuing key research on its antibody-drug conjugate (ADC) payload PH1 to further demonstrate its ability to target cancers fueled by oncogenic drivers. PH1 is a spliceosome modulator designed to disrupt RNA splicing within cells. It binds spliceosome proteins SF3B1 and PH5α and targets normal splicing of pre-mRNA. PH1 is a spliceosome modulator designed to disrupt RNA splicing within cells. It binds spliceosome proteins SF3B1 and PH5α and targets normal splicing of pre-mRNA.
The sodium-dependent phosphate transport protein 2b (NaPi2b), encoded by the SLC34A2 gene, is highly overexpressed in high-grade epithelial ovarian cancer and non-small-cell lung cancer while exhibiting minimal expression in normal adult tissues, making it a relevant tumor-associated antigen and a promising target for antibody-drug conjugates (ADCs).
SML Biopharm Co. Ltd. is harnessing mRNA technology to develop novel immunotherapy-based cancer vaccines, including two candidates for cervical and head and neck cancers caused by human papillomavirus (HPV) infection.
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