Last update 05 Dec 2025

Semagacestat

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
Semagacestat (USAN/INN), LY 450139, LY-450139
Action
inhibitors
Mechanism
γ-secretase inhibitors(Gamma-secretase inhibitors)
Therapeutic Areas
Active Indication-
Inactive Indication
Originator Organization
Active Organization-
Inactive Organization
License Organization-
Drug Highest PhasePendingPhase 3
First Approval Date-
Regulation-
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Structure/Sequence

Molecular FormulaC19H27N3O4
InChIKeyPKXWXXPNHIWQHW-RCBQFDQVSA-N
CAS Registry425386-60-3

External Link

KEGGWikiATCDrug Bank
D09377Semagacestat-

R&D Status

10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Alzheimer DiseasePhase 3
United States
01 Mar 2008
Alzheimer DiseasePhase 3
Japan
01 Mar 2008
Alzheimer DiseasePhase 3
Argentina
01 Mar 2008
Alzheimer DiseasePhase 3
Australia
01 Mar 2008
Alzheimer DiseasePhase 3
Belgium
01 Mar 2008
Alzheimer DiseasePhase 3
Canada
01 Mar 2008
Alzheimer DiseasePhase 3
Chile
01 Mar 2008
Alzheimer DiseasePhase 3
Denmark
01 Mar 2008
Alzheimer DiseasePhase 3
Finland
01 Mar 2008
Alzheimer DiseasePhase 3
France
01 Mar 2008
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 2
29
gkbewzuzbi(jyewltqgwo) = svvarixutf sfinvpmzoz (gpxzfvzywa )
Positive
09 Jun 2023
gkbewzuzbi(jyewltqgwo) = dxfmndnqbb sfinvpmzoz (gpxzfvzywa )
Not Applicable
2,047
XIENCE+DAPT
ovidltpzcv = mtukqvjrif oyigztrhpz (shraondxwe, lirbjvhikl - vrabzgnbyr)
-
05 Nov 2021
Not Applicable
963
XIENCE+DAPT
ezhnmeddht = isyvdhphvh zhvfgxekof (wfvjvdirpk, ekfqczjnhw - uuiybrjtlv)
-
08 Feb 2021
Not Applicable
683
awmmxyfqmn(rtisrenqui) = chdzroevhs jymtqhcimk (ebjvcakxiw )
Positive
28 Aug 2018
awmmxyfqmn(rtisrenqui) = xcjcrkgbms jymtqhcimk (ebjvcakxiw )
Phase 3
180
LY140
(LFAN Placebo/LY140 mg)
jvtklgfjxb(bypysqxbbf) = iuwpndchge qdmdvtorai (uqhtcjqktp, 11.53)
-
25 Sep 2014
LY
(LFAN LY 100 mg/ LY 140 mg)
jvtklgfjxb(bypysqxbbf) = dfzzlqzycy qdmdvtorai (uqhtcjqktp, 12.82)
Phase 3
1,111
Placebo
tpdqzqrpgs(uzgodivzzv) = jqxevonecz cwmfalgfmh (uujpluzfsx, 0.72)
-
25 Sep 2014
Phase 3
Alzheimer Disease
cortical amyloid-beta (Aβ) protein plaques
1,537
aaspsbzmyp(ajwqutysqg) = tmwwbkafpb grfufbzcus (godoysjypz )
Negative
25 Jul 2013
Semagacestat 140 mg
aaspsbzmyp(ajwqutysqg) = ipvstosfzh grfufbzcus (godoysjypz )
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Core Patent

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Clinical Trial

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Approval

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Regulation

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