Target

CDK9

Cyclin-dependent kinase 9

As of the edition of 20 October 2026, CDK9 (cyclin-dependent kinase 9, UniProt P50750) has 16 drugs tested at it and 19 companies on the list, 14 on route A and 0 on route B.

Sources: UniProt, ClinicalTrials.gov, ChEMBL, FDA Orange Book and Purple Book, Pharos.

The protein

UniProt
P50750
How well studied
Chemical tools exist; no approved drug acts on it
Where it sits in the cell
Inside the cell
Solved structures
28
Disease areas
Cancer; Blood and lymph; Immune system; Heart and blood vessels; Skin and connective tissue; Digestive system; Urinary and reproductive; Inherited and neonatal
Registered trials of its drugs
125

Drugs at this target

StatusCount
Active4
Went quiet3
Stopped8
Status not established1
Total16
DrugStatusFurthest phaseUS protection
AlvocidibStoppedPhase 2none listed
DinaciclibStoppedPhase 3none listed
RiviciclibWent quietPhase 2none listed
SeliciclibStoppedPhase 2none listed
ZotiraciclibStoppedPhase 2none listed
EnitociclibStoppedPhase 2none listed
BTX-A51ActivePhase 1none listed
ZemirciclibActivePhase 2none listed
BMS-387032Went quietPhase 1none listed
GFH009ActivePhase 2none listed
PRT2527Status not establishedPhase 1none listed
BAY1143572Went quietPhase 1none listed

12 of 16 drugs, the most tested first.

Companies at this target

Where the company standsCompanies
Route A14
Engaged4
Undetermined1
Total on the list19
Three companies on route A or B, with the route only
CompanyRoute
Merck & Co.Route A
SanofiRoute A
AbbVieRoute A

The other 16 companies at CDK9

In the product

19 companies in all; 16 are not named here, and no score is.

See the 19 companies at CDK9, ranked, with the facts behind eachRequest access. Nothing is shown until you do.