Diagonal Therapeutics, a biotechnology company pioneering a new approach to discovering and developing agonist antibodies, launched today with $128 million in financing. The Series A was co-led by BVF Partners and Atlas Venture, with participation from Lightspeed Venture Partners, RA Capital Management, Frazier Life Sciences, Viking Global Investors, Velosity Capital, and Checkpoint Capital. Diagonal was co-founded by Chief Executive Officer, Alex Lugovskoy, Ph.D., and Atlas and previously seeded by Atlas, Lightspeed Venture Partners, and Velosity Capital.