RE: Does anyone know (science question)20 Jan 2026 00:29
For the record see Avacta website - Our Science:::::
“1st Gen – No spacer or PK extensions
AVA6000 (FAP-enabled doxorubicin)
> No PK extension: the half-life (t1/2) of first-gen compounds is 30-90 minutes, with extension of released warhead t1/2
> No spacer to modulate the kcat/Km (baseline is high efficiencykcat/Km)
2nd Gen – Extended chemistry and increased half life
Enhanced plasma protein binding
> Alternate capping group with PEG links to enhance plasma protein binding and extend half-life of the preCISION® molecule (t1/2of hours in plasma)
> Self-immolativelinker allows additional warheadchemistry to link to the D-Ala-Pro peptide”