Target

PSEN1

Presenilin-1

As of the edition of 20 October 2026, PSEN1 (presenilin-1, UniProt P49768) has 12 drugs tested at it and 14 companies on the list, 7 on route A and 1 on route B.

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

The protein

UniProt
P49768
How well studied
Chemical tools exist; no approved drug acts on it
Where it sits in the cell
In more than one place
Solved structures
27
Disease areas
Cancer; Nervous system; Mental health; Blood and lymph; Immune system; Skin and connective tissue; Heart and blood vessels; Urinary and reproductive
Registered trials of its drugs
109

Drugs at this target

StatusCount
Marketed1
Active1
Went quiet6
Stopped4
Total12
DrugStatusFurthest phaseUS protection
RG-4733StoppedPhase 2none listed
NirogacestatMarketedPhase 4Ends 2039
AvagacestatStoppedPhase 2none listed
MK-0752Went quietPhase 4none listed
OsugacestatStoppedPhase 2none listed
VaregacestatActivePhase 3none listed
TarenflurbilWent quietPhase 3none listed
BegacestatWent quietPhase 1none listed
SemagacestatWent quietPhase 3none listed
CHF 5074Went quietPhase 1none listed
LY3056480StoppedPhase 2none listed
NGP 555Went quietPhase 1none listed

12 of 12 drugs, the most tested first.

Companies at this target

Where the company standsCompanies
Route A7
Route B1
Engaged3
Undetermined3
Total on the list14
Three companies on route A or B, with the route only
CompanyRoute
Merck & Co.Route A
RocheRoute A
Eli LillyRoute A

The other 11 companies at PSEN1

In the product

14 companies in all; 11 are not named here, and no score is.

See the 14 companies at PSEN1, ranked, with the facts behind eachRequest access. Nothing is shown until you do.