Target

PIK3CA

Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform

As of the edition of 20 October 2026, PIK3CA (phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform, UniProt P42336) has 46 drugs tested at it and 41 companies on the list, 19 on route A and 4 on route B.

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

The protein

UniProt
P42336
How well studied
Drug target: an approved drug acts on it
Solved structures
139
Disease areas
Cancer; Skin and connective tissue; Blood and lymph; Immune system; Urinary and reproductive; Nervous system; Pregnancy and women's health; Inherited and neonatal
Registered trials of its drugs
523

Drugs at this target

StatusCount
Marketed4
Active12
Went quiet14
Stopped13
Status not established3
Total46
DrugStatusFurthest phaseUS protection
AlpelisibMarketedPhase 4Ends 2033
BuparlisibStoppedPhase 3none listed
CopanlisibMarketedPhase 3Ends 2032
InavolisibMarketedPhase 3Ends 2038
DactolisibWent quietPhase 3none listed
GedatolisibMarketedPhase 3Ends 2031
SamotolisibStoppedPhase 2none listed
PictilisibWent quietPhase 2none listed
TaselisibStoppedPhase 3none listed
PaxalisibActivePhase 3none listed
PilaralisibWent quietPhase 2none listed
SerabelisibActivePhase 2none listed

12 of 46 drugs, the most tested first.

Companies at this target

Where the company standsCompanies
Route A19
Route B4
Engaged15
Undetermined3
Total on the list41
Three companies on route A or B, with the route only
CompanyRoute
NovartisRoute B
RocheRoute B
GSKRoute A

The other 38 companies at PIK3CA

In the product

41 companies in all; 38 are not named here, and no score is.

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