Target

PARP2

Poly [ADP-ribose] polymerase 2

As of the edition of 20 October 2026, PARP2 (poly [ADP-ribose] polymerase 2, UniProt Q9UGN5) has 9 drugs tested at it and 15 companies on the list, 3 on route A and 6 on route B.

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

The protein

UniProt
Q9UGN5
How well studied
Drug target: an approved drug acts on it
Where it sits in the cell
Inside the cell
Solved structures
75
Disease areas
Cancer; Urinary and reproductive; Pregnancy and women's health; Hormones; Skin and connective tissue; Digestive system; Lungs and airways; Blood and lymph
Registered trials of its drugs
921

Drugs at this target

StatusCount
Marketed4
Active2
Stopped3
Total9
DrugStatusFurthest phaseUS protection
OlaparibMarketedPhase 4Ends 2028
NiraparibMarketedPhase 4Ends 2031
TalazoparibMarketedPhase 3Ends 2031
VeliparibStoppedPhase 3none listed
RucaparibMarketedPhase 3Ends 2031
PamiparibStoppedPhase 3none listed
SenaparibActivePhase 2none listed
2X-121ActivePhase 2none listed
E-7016StoppedPhase 2none listed

9 of 9 drugs, the most tested first.

Companies at this target

Where the company standsCompanies
Route A3
Route B6
Engaged3
Undetermined3
Total on the list15
Three companies on route A or B, with the route only
CompanyRoute
GSKRoute B
AstraZenecaRoute B
PfizerRoute B

The other 12 companies at PARP2

In the product

15 companies in all; 12 are not named here, and no score is.

See the 15 companies at PARP2, ranked, with the facts behind eachRequest access. Nothing is shown until you do.