Gossamer Bio Inc. has divulged diacylglycerol kinase α (DGK-α) and/or diacylglycerol kinase ζ (DGK-ζ) inhibitors reported to be useful for the treatment of cancer and viral infections.
Aerovate Therapeutics Inc. is shutting down the ongoing phase III portion of its Impahct study of AV-101, an inhaled version of PDGFR inhibitor imatinib, after reporting top-line data from the phase IIb portion failed to meet primary and secondary endpoints in patients with pulmonary arterial hypertension (PAH). It was a major blow for the single-product company, sending shares (NASDAQ:AVTE) falling 93% to close June 17 at $1.65, down $22.97.
A Gossamer Bio Inc. patent describes oxime derivatives that act as diacylglycerol kinase α (DGKA) and/or diacylglycerol kinase ζ (DGKZ) inhibitors and are thus reported to be useful for the treatment of cancer and viral infections.
Gossamer Bio Inc. has divulged trisubstituted pyridines acting as non-receptor tyrosine-protein kinase TYK2 inhibitors reported to be useful for the treatment of asthma, atopic dermatitis, contact dermatitis, inflammatory bowel disease, multiple sclerosis, psoriasis, rheumatoid arthritis and allergic rhinitis, among others.
A few weeks after Gossamer Bio Inc. said it was pausing enrollment in a phase Ib/II study of CNS-penetrant BTK inhibitor GB-5121 in relapsed/refractory CNS lymphoma, citing the drug’s risk/benefit profile observed to date and a prioritization of resources, the company is dropping the drug’s development entirely.
Therapies for multiple sclerosis (MS) have been effective in relapse prevention but emerging data still show the continued disability progression independent of relapse activity (PIRA), characterized by the presence of ectopic B-cell follicles and active lesions with microglia cells, resulting in a smoldering central nervous system (CNS)-driven inflammation, tissue damage and disease progression.
Gossamer Bio Inc. shares (NASDAQ:GOSS) fell 74.6% to $2.36 Dec. 6 after the disclosure of phase II results that, while meeting the study's primary endpoint of reducing pulmonary vascular resistance vs. placebo, failed to show the company's pulmonary arterial hypertension (PAH) candidate, seralutinib, holding its own against the performance of Merck & Co. Inc.'s PAH candidate, sotatercept, in separate PAH studies.
Gossamer Bio Inc.’s finding of a subset of especially good responders in the phase IIb study called Leda may have taken some of the edge off two failures with GB-001, an oral DP2 antagonist undergoing tests in asthma and chronic rhinosinusitis. But the Street still wasn’t happy, and shares (NASDAQ:GOSS) of the San Diego-based firm closed Oct. 13 at $10.09, down $3.50, or 26%.
