Target

TOP2A

DNA topoisomerase 2-alpha

As of the edition of 20 October 2026, TOP2A (DNA topoisomerase 2-alpha, UniProt P11388) has 20 drugs tested at it and 37 companies on the list, 10 on route A and 10 on route B.

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

The protein

UniProt
P11388
How well studied
Drug target: an approved drug acts on it
Where it sits in the cell
Inside the cell
Solved structures
15
Disease areas
Cancer; Blood and lymph; Immune system; Skin and connective tissue; Urinary and reproductive; Lungs and airways; Pregnancy and women's health; Hormones
Registered trials of its drugs
3,566

Drugs at this target

StatusCount
Marketed12
Active2
Stopped6
Total20
DrugStatusFurthest phaseUS protection
DoxorubicinMarketedPhase 4none listed
EtoposideMarketedPhase 4none listed
EpirubicinMarketedPhase 4none listed
MitoxantroneMarketedPhase 4none listed
DaunorubicinMarketedPhase 4none listed
IdarubicinMarketedPhase 4none listed
Etoposide phosphateMarketedPhase 4none listed
DexrazoxaneMarketedPhase 3none listed
AldoxorubicinStoppedPhase 3none listed
AmrubicinActivePhase 3none listed
TeniposideMarketedPhase 4none listed
AclarubicinActivePhase 3none listed

12 of 20 drugs, the most tested first.

Companies at this target

Where the company standsCompanies
Route A10
Route B10
Engaged13
Undetermined4
Total on the list37
Three companies on route A or B, with the route only
CompanyRoute
ImmunitybioRoute A
Hq Specialty PharmaRoute B
CNX TherapeuticsRoute B

The other 34 companies at TOP2A

In the product

37 companies in all; 34 are not named here, and no score is.

See the 37 companies at TOP2A, ranked, with the facts behind eachRequest access. Nothing is shown until you do.