Drug Hunter: The 2023 Molecule of the Year
The 2023 winner, with the most votes between ten molecules, is Merck's oral macrocyclic peptide inhibitor of PCSK9, MK-0616.
Merck's macrocyclic PCSK9 protein-protein interaction inhibitor, MK-0616, is a once-daily PCSK9-lowering and LDL-cholesterol-lowering small molecule that has demonstrated antibody-like efficacy as an oral agent in the clinic. The program highlights numerous technical achievements at the forefront of modern drug discovery, from mRNA display screening to the use of lipidic permeation enhancer formulations, and will set a standard for modern “classics in drug discovery” for some time.
Notably, the discovery of MK-0616 was enabled by mRNA display technology to identify cyclic peptide starting points. To execute the screen, Merck collaborated with Ra Pharmaceuticals, a Cambridge biotech specializing in peptide chemistry. Subsequent lead optimization efforts were accelerated by key institutional strengths in structure-based drug design and innovative medicinal chemistry efforts.
This drug discovery campaign, leading to the first small molecule to demonstrate clinical efficacy in humans, is a tour de force from Merck highlighting not only technical sophistication but also the organizational commitment and project championship needed from drug hunters. At every stage of this drug discovery project, one can imagine all the ways the project could have broken down based on the investment needed by multiple groups to advance – from the application of mRNA display technology with external partnership to the “optimization for the impossible” medicinal chemistry, to the heroic synthetic chemistry needed to enable clinical supply, to the clinical use of lipidic permeation enhancers, to the commercial decision to advance an oral PCSK9 molecule. A lack of buy-in from any department – from chemistry to pharmacology, clinical development to commercial – would have stalled or killed this program. Reaching clinical proof-of-concept with an oral, cell-impermeable, bRo5 macrocyclic peptide PCSK9 protein-protein interaction inhibitor continues to bolster Merck's reputation for scientific leadership and organizational excellence.
Given these remarkable achievements, against nearly impossible odds, it is no wonder that the drug discovery community has recognized Merck's MK-0616 as the 2023 Molecule of the Year. Congratulations to all of the drug hunters involved!
Runners-up for 2023 included Revolution Medicines' RMC-6291, Vertex Pharmaceuticals' VX-548, Kymera Therapeutics' KT-474, and lirafugratinib (RLY-4008) from Relay Therapeutics. Stay tuned for more on the science behind all of these groundbreaking molecules!
Read more about MK-0616, the community feedback, and the runners-up in the full article here: https://lnkd.in/eZh5DJUb