Raffaele Colombo
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raffcolo.bsky.social
Raffaele Colombo
@raffcolo.bsky.social
ADCs, targeted therapies, chemistry, biotech, pharma.
Associate Director @ Zymeworks
Reposted by Raffaele Colombo
Don't miss "The Journey of Antibody–Drug Conjugates: Lessons Learned from 40 Years of Development," a Cancer Discovery review by #AACR25 speakers Elisabeth de Vries and @raffcolo.bsky.social (along with Pat LoRusso & @ptarantinomd.bsky.social) doi.org/10.1158/2159...
April 26, 2025 at 4:00 PM
Sharing 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.
December 24, 2024 at 4:50 PM
ADC (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
December 10, 2024 at 4:54 AM
Reposted by Raffaele Colombo
Small preview from Wednesday’s #SABCS24 session on the future of ADCs

Question: what do all these ongoing phase 3 ADC trials have in common?

🗓️ Dec 11, 3.30 pm, Hemisfair Ballroom 1-2
December 9, 2024 at 9:45 PM
ADC 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...
November 28, 2024 at 2:38 AM
Sacituzumab 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)!
November 27, 2024 at 4:11 PM
Reposted by Raffaele Colombo
The biparatopic anti-HER2 mAb zanidatamab is now approved for treating HER2+ biliary tract cancer. Zanidatamab simultaneously binds to the trastuzumab- and pertuzumab binding domain of HER2. Phase 3 trial ongoing in pretreated HER2+ MBC, led by Sara Tolaney. www.fda.gov/drugs/resour...
November 23, 2024 at 1:27 AM
Ziihera approved!! 🎉🎉

www.prnewswire.com/news-release...
November 21, 2024 at 3:24 AM
Upcoming 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
November 19, 2024 at 2:47 AM
Reposted by Raffaele Colombo
Only 3 weeks to #SABCS24, a meeting that promises to significantly impact the way we treat breast cancer. It will feature phase 3 data with novel SERDs, novel ADCs, immunotherapy, ctDNA monitoring, important biomarker analyses & so much more. Here’s my top 10 abstracts list— see you in San Antonio!
November 17, 2024 at 8:01 PM