Whether as primary tumors or metastases, brain tumors remain stubbornly intractable to the progress that has occurred in many other tumor types. As Igor Vivanco, who is a senior lecturer in the Institute of Pharmaceutical Science at King’s College London, noted in his talk at the European Society for Medical Oncology Targeted Anticancer Therapies (ESMO TAT) meeting in Paris this week, the last win in glioblastoma was the addition of temozolomide to the radiotherapy standard of care in 2005. And temozolomide’s benefit is measured in months, not years.
A combination of radiation therapy and CD47 blockade induced an abscopal effect in animal studies even in animals that lacked T cells, researchers reported in the Nov. 21, 2022, online issue of Nature Cancer. The findings are “the first demonstration of T-cell-independent abscopal response,” co-corresponding author Edward Graves told BioWorld. “We’re not trying to say that all abscopal responses are macrophage-mediated. There are plenty that require T cells,” Graves clarified. But “there is another avenue of abscopal responses that has not been reported. ... All the abscopal literature is about stimulating an adaptive response.”
The 2022 Nobel Prize in chemistry was awarded to Carolyn Bertozzi of Stanford University, to Morten Meldal of the University of Copenhagen, and – for the second time – to Barry Sharpless of The Scripps Research Institute “for the development of click chemistry and bioorthogonal
chemistry.”
Click chemistry, the Nobel Committee’s Olof Ramström told reporters while announcing the prize, “is almost like it sounds – it’s all about linking different molecules.”
He likened click chemistry to a seatbelt buckle, whose interlocking parts can be attached to many different materials, linking them by snapping the two parts of the buckle together.
“The problem was to find good chemical buckles,” Ramström said – chemicals that “will easily snap together, and importantly, they won’t snap with anything else.”
Tumor mutational burden (TMB), a biomarker used to assess whether a patient will respond to immunotherapy, needs to be recalculated in order to be useful for patients of Asian or African descent. Scientists at the Dana-Farber Cancer Institute found a significant bias in the estimated TMB values affecting these populations and adjusted them for those patients.
When Amgen Inc. won approval of the oncolytic virus (OV) therapy Imlygic (talimogene laherparepvec, t-vec) for melanoma in late October 2015, hopes ran high for the space. The mood has since faded in some quarters – but hardly all.
By combining synthetic biology and RNA therapy, the team at startup Strand Therapeutics Inc. hopes to make mRNA therapy more effective. Strand recently announced an immuno-oncology deal with Beigene Ltd. that netted the company $5 million to begin with and could end up being worth more than $250 million. Beyond immuno-oncology, the company’s basic technology could be broadly useful for both mRNA- and cell-based therapies.
Shanghai Junshi Biosciences Co. Ltd. could receive an aggregate $1.1 billion from Coherus Biosciences Inc. for the rights to develop and commercialize Junshi’s anti-PD-1 antibody toripalimab in the U.S. and Canada. The deal is powered by Coherus’ core biosimilar business and is designed to steer the company into the business of immuno-oncology.
DUBLIN – Merus NV is banking $40 million up front, plus an equity investment of $20 million, under a research collaboration and license agreement with Eli Lilly and Co.’s Loxo Oncology arm to develop up to three CD3-directed bispecific T-cell engager antibodies. Each program also has up to $540 million attached in development and commercialization milestones, taking the total potential value of the deal to $1.68 billion. Merus would also receive tiered royalties on any product sales, ranging, in percentage terms, from mid-single-digits to low-double-digits.
Dublin – IO Biotech ApS raised €127 million (US$154.7 million) in a series B round to fund a potentially pivotal trial of its combination of cancer vaccines in first-line metastatic melanoma. The Copenhagen, Denmark-based company is one of a number of firms fueling a mini-resurgence in immuno-oncology in the early weeks of the new year, as new data and new insights are prompting additional investments in an area that some had thought was already oversubscribed.
Trillium Therapeutics Inc. is playing a hot hand. The immuno-oncology company followed recently revealed positive data from two dose-escalation phase I studies targeting CD47 by pulling down a $25 million equity investment from Pfizer Inc. Now the company has priced a $130 million underwritten public offering of 10 million common shares at $13 each.