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BMS And Prothena’s Expanded Deal Shows Growing Confidence In Targeting Tau

But First Clinical Benefits Yet To Be Seen

 
• By Andrew McConaghie

After serial failures with tau antibodies for Alzheimer’s, BMS’ expanded deal with Prothena signals its growing confidence in PRX005, a new molecule targeting a different region on the toxic protein.

BMS

Bristol Myers Squibb has opted to buy the global rights to Prothena’s anti-tau Alzheimer’s candidate PRX005, paying $55m to expand an existing US-only deal.

There have been scores of failed tau-targeting candidates over the last two decades, but enhanced understanding of how to target the toxic protein, along with the US approval of

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Astellas Gets CLDN.18.2-Targeted ADC From China’s Evopoint

 
• By Joseph Haas

Astellas will pay $130m up front for near-global rights to a Phase I/II antibody-drug conjugate that will add to its portfolio of CLDN.18.2-targeted drugs, including Vyloy.

Lilly To Diversify Pain Pipeline With SiteOne Acquisition

 
• By Joseph Haas

Deal snapshot: With several internal non-opioid pain candidates in Phase II or earlier, Lilly looks to add R&D potential in pain with $1bn buyout of SiteOne.

Angelini Advances Brain Health Ambitions With GRIN Pact

 
• By Kevin Grogan

The Italian drugmaker gets rights to Phase III-ready asset radiprodil.

Deal Watch: QurAlis Targets Fragile-X Syndrome In Deals With Quiver, UMass

 
• By Joseph Haas

Plus the end of Sanofi’s six-target alliance with IGM, OmniAb’s deals with Veraxa and Angelini, alliances involving Skye/Arecor, Genprex/UTHealth Houston and more.

More from Business

Loss Of Exclusivity Product Launches To Fuel Aurobindo’s FY26 Europe Growth

 
• By Vibha Ravi

Aurobindo is banking on launches of loss of exclusivity products and biosimilars to fuel sales in Europe as it awaits a US announcement on tariffs and predicts high single-digit growth overall during FY26 for now

Korea Q1 Roundup: Mixed Earnings, Gearing For Possible US Tariffs

 
• By Jung Won Shin

South Korean biopharma companies report a mostly solid first quarter, marked by US growth for original drugs, with several also making preparations for possible US pharma tariffs.

In Brief: Nicox Extends Cash Runway As Kowa Advances NCX 470 In Japan

 
• By Sushmita Panda

Eye drug is already in Phase III trials elsewhere, with results due in Q3. Nicox could earn up to a further €24.5m in milestones and royalties from Kowa alliance.