When checkpoint inhibitors work, they can perform wonders. But for many cancer patients, in-built or acquired resistance to these immunotherapies impedes their efficacy. Merck, the maker of the checkpoint king Keytruda, is shelling out up to $773 million to swallow Tilos Therapeutics, which is developing a class of drugs designed to mitigate checkpoint resistance.

Tilos Therapeutics, founded three years ago, is developing anti-LAP antibodies, designed to treat cancer, fibrosis and autoimmune diseases by unleashing the immune system to attack disease. Latency-associated peptide (LAP) is a protein that forms a cage around the transforming growth factor (TGFβ), holding the potent cytokine in a latent state until it is ready to be deployed. TGFβ’s misregulation can result in tumor development, and the cytokine is thought to play a key role in fibrotic diseases.

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Clay Siegall will be back in the CEO seat, taking the helm of a private startup working on targeted cancer therapies.

It’s been almost a year since Siegall resigned from Seagen, the biotech he co-founded and led for more than 20 years, in the wake of domestic violence allegations by his then-wife. His eventual successor, David Epstein, sold the company to Pfizer in a $43 billion deal unveiled last week.

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Brii Biosciences said it will stop manufacturing its Covid-19 antibody combination, sold in China, and is working to withdraw its emergency use authorization request in the US, which it started in October 2021.

The Beijing and North Carolina biotech commercially launched the treatment in China last July but is now axing the work and reverting resources to other “high-priority programs,” per a Friday update. The focus now is namely hepatitis B viral infection, postpartum depression and major depressive disorders.

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A panel of outside advisors to the FDA unanimously recommended that the agency grant accelerated approval to Biogen’s ALS drug tofersen despite the drug failing the primary goal of its Phase III study, an endorsement that could pave a path forward for the treatment.

By a 9-0 vote, members of the Peripheral and Central Nervous System Drugs Advisory Committee said there was sufficient evidence that tofersen’s effect on a certain protein associated with ALS is reasonably likely to predict a benefit for patients. But panelists stopped short of advocating for a full approval, voting 3-5 against (with one abstention) and largely citing the failed pivotal study.

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Moderna has inked a five-year partnership with gene therapy biotech Generation Bio, it announced Thursday morning, wading deeper into the genetic medicines space as it navigates beyond its vaccine work.

Moderna will pay Generation Bio $40 million upfront and invest another $36 million into the gene therapy biotech. In exchange, Moderna can license Generation Bio’s non-viral gene therapy platforms for two immune cell programs and two liver programs, with an option for a fifth program. Moderna will fund all the research work under the partnership, and could be on the hook for milestone, fee and royalty payments totaling up to $1.8 billion, a company spokesperson tells Endpoints News.

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Gilead and Pionyr Immunotherapeutics, a biotech trying to follow up on the first generation of checkpoint inhibitors, have “mutually agreed” on a rewrite to their 2020 terms, with Gilead deciding not to buy out the company.

The California biopharma waived its option to acquire the remaining 50.1% of Pionyr, which would have triggered a $315 million upfront payment and up to $1.15 billion down the road. Had Gilead waited to decide, the drugmaker would have had a potential payment to make in the near term under their agreement, a spokesperson said in an email to Endpoints News.

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Relmada Therapeutics is making changes to its Phase III study of its lead drug for major depressive disorder, in an attempt to avoid problems with a prior trial that showed little difference between the drug and a placebo.

That failure in October wiped 80% from Relmada’s stock price, and was followed by another negative readout a few months later. In both cases, the company said that there had been trial sites that were associated with what it called surprising placebo effects that skewed the results compared with the drug, REL-1017.

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