Shares of Athersys Inc. fell sharply May 20 after its partner and top investor Healios K.K. reported that Multistem (invimestrocel), the experimental cell therapy they've co-developed since 2016, missed the primary endpoint of a Japanese phase II/III ischemic stroke study called Treasure. Many Athersys investors appeared to read the results as bad news for Athersys' ongoing pivotal phase III stroke study, Masters-2.
A phase III failure for Roche Holding AG unit Genentech Inc.'s anti-TIGIT immunotherapy tiragolumab dragged down the share value of several other class entrants.
As the American Society of Clinical Oncology meeting nears, presenters are talking up their prospects, including Biomea Fusion Inc. with early data from experiments testing BMF-219, an oral, irreversible covalent menin inhibitor – one in an intriguing class that has sparked efforts by various developers.
Beigene Ltd. reported that its global phase III trial of PD-1 inhibitor tislelizumab in combination with chemotherapy met the primary endpoint of overall survival in first-line advanced esophageal cancer.
Connect Biopharma Holdings Ltd. pointed to positive secondary endpoint data and a numerical trend on the primary endpoint in favor of its S1P receptor modulator, CBP-307, in ulcerative colitis, but those results weren’t enough to keep the stock (NASDAQ:CNTB) from falling by more than 57% to close at 82 cents, as investors focused on the primary endpoint miss and the company’s decision to partner the program going forward.
New trial results presented by Shionogi & Co. Ltd. at the 32nd European Congress of Clinical Microbiology and Infectious Diseases showed the company’s 3CL protease inhibitor, S-217622, was well-tolerated, with the potential to rapidly clear SARS-CoV-2, Simon Portsmouth, executive medical director at Shionogi, told BioWorld.
Australia’s Therapeutic Goods Administration will begin conducting routine risk-based good clinical practices (GCP) inspections for clinical trials of drugs and biologics. The agency outlined in final guidance how it would prioritize inspections, what the process would look like and how it would report and follow up on inspections.
Backed by fresh phase III data showing a combination of the IDH1 gene inhibitor Tibsovo (ivosidenib) and azacitidine significantly improved event-free survival and overall survival for adults with previously untreated IDH1-mutated acute myeloid leukemia (AML) vs. azacitidine alone, Cstone Pharmaceuticals Co. Ltd. is working to bring the treatment to Chinese AML patients “as soon as possible,” a spokesperson told BioWorld.
Arcturus Therapeutics Holdings Inc. reported that ARCT-154, its self-amplifying mRNA COVID-19 vaccine, showed efficacy of 55% against infection and 95% efficacy against severe disease, meeting the primary and key secondary endpoints of the ongoing phase I/II/III trial. While the company’s stock (NASDAQ:ARCT) regained much of its initial 25% drop to close the day, investors continue to await further data to determine where Arcturus’ vaccine will fit in with available COVID-19 vaccines.
Shionogi & Co. Ltd.’s plan to make ensitrelvir, an oral antiviral for COVID-19, the first domestically approved COVID-19 treatment has hit a snag. Animal studies showed the drug, also known as S-217622, disturbed fetal development, according to media reports.
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