Target

BLK

Tyrosine-protein kinase Blk

As of the edition of 20 October 2026, BLK (tyrosine-protein kinase Blk, UniProt P51451) has 5 drugs tested at it and 6 companies on the list, 3 on route A and 1 on route B.

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

The protein

UniProt
P51451
How well studied
Chemical tools exist; no approved drug acts on it
Where it sits in the cell
At a membrane
Disease areas
Cancer; Blood and lymph; Immune system; Digestive system; Skin and connective tissue; Lungs and airways; Nervous system; Urinary and reproductive
Registered trials of its drugs
322

Drugs at this target

StatusCount
Marketed1
Went quiet1
Stopped3
Total5
DrugStatusFurthest phaseUS protection
Dasatinib anhydrousMarketedPhase 4Ended 2026
ENMD-981693Went quietPhase 2none listed
IlorasertibStoppedPhase 2none listed
TG100-801StoppedPhase 2none listed
XL-228StoppedPhase 1none listed

5 of 5 drugs, the most tested first.

Companies at this target

Where the company standsCompanies
Route A3
Route B1
Engaged2
Total on the list6
Three companies on route A or B, with the route only
CompanyRoute
Bristol Myers SquibbRoute B
ExelixisRoute A
CASI pharmaceuticalsRoute A

The other 3 companies at BLK

In the product

6 companies in all; 3 are not named here, and no score is.

See the 6 companies at BLK, ranked, with the facts behind eachRequest access. Nothing is shown until you do.