Raffaele Colombo @raffcolo.bsky.social · 24/12/2024For a summary of how ADC payload class has evolved over time (up to August 2024), see: aacrjournals.org/cancerdiscov... 110
Raffaele Colombo @raffcolo.bsky.social · 24/12/2024Sharing for the 🦋 aficionados: A record of 77 new ADCs entered clinical development in 2024 (including those accepted but not yet started). Payload class clearly dominated by topo1i with 55 ADCs. Greater diversity observed for antibody targets, featuring novel TAAs and several bispecific ADCs. 121
Raffaele Colombo @raffcolo.bsky.social · 10/12/2024ADC (in)stabilities: - Both sacituzumab govitecan (SG) and sacituzumab tirumotecan (sac-TMT) have an unstable carbonate linker (half-life ~24 h) that releases their respective payloads over time - SG has an additional point of instability (thiol-maleimide conjugation) Get ready for #SABCS24 021
Raffaele Colombo @raffcolo.bsky.social · 28/11/2024ADC trivia: what’s the linker stability of the newly approved (by Chinese NMPA) sacituzumab tirumotecan? 1, 2, 3, 4, 5, 6, 7, or 8? For more info on ADC linker (in)stabilities: aacrjournals.org/cancerdiscov... 021
Raffaele Colombo @raffcolo.bsky.social · 27/11/2024Sacituzumab tirumotecan (aka sac-TMT aka SKB264/MK-2870) approved in China for patients with advanced or metastatic triple negative breast cancer (TNBC) who have received at least 2 prior therapies. This brings the total number of approved ADCs to 13 worldwide (of which 11 by US FDA)! 162
Raffaele Colombo @raffcolo.bsky.social · 21/11/2024Ziihera approved!! 🎉🎉 www.prnewswire.com/news-release... 041
Raffaele Colombo @raffcolo.bsky.social · 19/11/2024Upcoming early-phase ADC data at #ASH24 (including two interesting preclinical ADCs) 66th ASH Annual Meeting (December 7-10, 2024), full program: ash.confex.com/ash/2024/web... Note: late-breaking abstracts available online on November 25! #ADC #ADCs 071