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Nature Study Retools Human AGO2 Into ALTER, A C-to-U RNA Editor That Tops Cas13 Comparators In HEK293T CellsBiotech Innovation

Nature Study Retools Human AGO2 Into ALTER, A C-to-U RNA Editor That Tops Cas13 Comparators In HEK293T Cells

The work, published in Nature Biotechnology, describes AGO-led targeted editing of RNA, or ALTER, which fuses human AGO2 to a C-to-U deaminase and uses guide RNAs designed to favor binding over cleavage. The study positions a human-protein scaffold as a possible way to reduce some translation risks associated with nonhuman RNA editors, including delivery and immunogenicity concerns.

The Catalyst BriefOct 21, 2026
FDA Signals GenAI Medical Devices May Face Physician-Like Competency Review, As Draft Policy Moves AheadRegulatory & Policy

FDA Signals GenAI Medical Devices May Face Physician-Like Competency Review, As Draft Policy Moves Ahead

Rick Abramson, director of FDA's Digital Health Center of Excellence, said at The MedTech Conference that generative AI tools create an "unbounded evaluation space" that does not fit the agency's established software-as-a-medical-device framework. He also said the FDA intends to draft policy after reviewing more than 300 comments on its August discussion paper, with draft guidance expected on the course of months.

The Catalyst BriefOct 21, 2026
Trump Orders NIH Women’s Health Division, Adding White House Task Force Amid Funding StrainRegulatory & Policy

Trump Orders NIH Women’s Health Division, Adding White House Task Force Amid Funding Strain

The initiative promises to streamline research into understudied diseases in women, improve diagnostics and treatment, and expand accountability around sex as a biological variable in NIH-funded work. Its policy significance lies in pairing a visible White House directive with an unclear operating model at a time when funding for women’s health research has already come under pressure.

The Catalyst BriefOct 20, 2026
Genmab Faces A Darzalex Revenue Cliff As Petosemtamab And Rina-S Readouts ApproachBiopharmaceutical Industry

Genmab Faces A Darzalex Revenue Cliff As Petosemtamab And Rina-S Readouts Approach

Genmab executives and investors are framing the company’s next phase around a narrow set of oncology assets ahead of U.S. Darzalex patent expiry in 2029. The near-term question is less whether the cliff exists than whether upcoming data can compress the revenue gap fast enough to keep Genmab growing beyond it.

The Catalyst BriefOct 20, 2026
Lilly Signs Up To $1.1 Billion Metis Deal, Extending Its AI-Enabled Delivery PushAI in Drug Discovery

Lilly Signs Up To $1.1 Billion Metis Deal, Extending Its AI-Enabled Delivery Push

The collaboration centers on Metis’ AiLNP platform, which the company says combines a large lipid library, end-to-end screening and a lipid language model to design lipid nanoparticles. For Lilly, the deal fits a pattern: pairing AI investments with a series of delivery-focused partnerships and acquisitions as drug modalities become harder to deliver effectively.

The Catalyst BriefOct 20, 2026
Merck KGaA Buys Silence Therapeutics For $1.1 Billion Enterprise Value, Adding A Phase 3-Ready PV siRNA ProgramBiopharmaceutical Industry

Merck KGaA Buys Silence Therapeutics For $1.1 Billion Enterprise Value, Adding A Phase 3-Ready PV siRNA Program

Merck KGaA said it will acquire Silence Therapeutics for $20 per share, with the companies describing the transaction as about $1.1 billion in enterprise value and about $1.3 billion in equity value. The strategic centerpiece is divesiran, which Silence is using as a springboard into Phase 3 in polycythemia vera after mid-stage data that put it near the front of an increasingly competitive field.

The Catalyst BriefOct 19, 2026
Gilead Posts Phase 2 Emvistegrast Win In Ulcerative Colitis, Setting Up A 2027 Phase 3 Monotherapy StudyBiotech Innovation

Gilead Posts Phase 2 Emvistegrast Win In Ulcerative Colitis, Setting Up A 2027 Phase 3 Monotherapy Study

In the ongoing phase 2 Swift trial, 66% of patients on 200 mg of emvistegrast achieved a clinical response at week 12 versus 37% on placebo, while 31% achieved clinical remission versus 8% on placebo. Gilead plans to start a Phase 3 monotherapy study in 2027 and is positioning the oral α4β7 integrin inhibitor as a potential backbone for future combination approaches.

The Catalyst BriefOct 19, 2026
Roche Expands Hansoh ADC Alliance To Up To $15 Billion, Deepening Its China Oncology SourcingBiopharmaceutical Industry

Roche Expands Hansoh ADC Alliance To Up To $15 Billion, Deepening Its China Oncology Sourcing

The new agreement comes a year after Roche licensed ex-China rights to Hansoh’s CDH17-targeted ADC HS-20110. Taken together, the two deals point to a more deliberate strategy of sourcing oncology assets from Chinese developers with established ADC platforms rather than treating such transactions as one-off bets.

The Catalyst BriefOct 19, 2026
Nouscom Raises $135 Million For NOUS-209, Backing A Registration-Enabling Lynch Syndrome TrialBiotech Innovation

Nouscom Raises $135 Million For NOUS-209, Backing A Registration-Enabling Lynch Syndrome Trial

The Swiss biotech said the series D round will fund development of NOUS-209, an off-the-shelf cancer immunotherapy aimed at preventing tumors in people with Lynch syndrome. Early clinical results cited alongside the raise showed all evaluable carriers remained free from advanced adenomas and colorectal cancer, giving investors a clearer clinical rationale for a prevention-focused program.

The Catalyst BriefOct 19, 2026

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