Drug

Semagacestat

As of the edition of 20 October 2026, Semagacestat is a small molecule: went quiet in 2011; acts on PSEN1 and PSEN2.

Sources: FDA Orange Book and Purple Book, other approval registers, ClinicalTrials.gov, ChEMBL.

The drug

Status
Went quiet, 2011
Kind
Small molecule
Registered trials
4, 0 stopped early
Disease areas
Mental health; Nervous system

US protection

No US approval on record.

With no US approval on record there are no listed US patents or exclusivities.

This is the US only.

Companies that need a new molecule because of this drug

2 company-target rows on route A because of this drug.

Companies on route A for this drug

In the product

2 company-target rows are on route A because of Semagacestat.

Targets

GeneProteinUniProt
PSEN1Presenilin-1P49768
PSEN2Presenilin-2P49810

Registered trials

PhaseTrialsCompletedActiveStopped early
Phase 11100
Phase 33300
All trials4

Who ran its trials

CompanyRoleYears
Eli LillyLead sponsor of trials2006 to now