Oncology
CDK4
CHEMBL331
Selectivity-first goal: CDK4/CDK6 selectivity. NOTE: current published counts derive from a CDK5-contaminated seed and are being regenerated on the corrected CDK4 seed (CHEMBL331).
ADMET Passed
16,735
Pareto Rank-1 Count
812
CRO
Awaiting CRO decision
Stage
Accumulating
Pareto Rank-1 is a front-membership count, not a quality ranking — the front is near-saturated, so it does not discriminate quality. Meaningful selection uses consensus + wet-lab.
Mechanism
Target: selective CDK4 inhibition — avoid CDK6-driven neutropenia observed with palbociclib. (Current library pending regeneration on the corrected CDK4 seed.)
Precedent
Palbociclib (Pfizer), Ribociclib (Novartis), Abemaciclib (Lilly) — all pan-CDK4/6.
Indications
HR+/HER2- breast cancer · Melanoma
Milestones
2026-W11
16,735 candidates accumulated (from CDK5-derived seed — being regenerated)
2026-W14
Top-10 selected for ABFE physics validation
2026-W16
CRO submission decision expected