Last update 27 Jun 2026

MK-8189

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
Elpipodect, MK 8189, MK8189
Target
Action
inhibitors
Mechanism
PDE10A inhibitors(Phosphodiesterase 10A inhibitors)
Therapeutic Areas
Active Indication
Originator Organization
Active Organization
Drug Highest PhasePhase 1
First Approval Date-
Regulation-
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Structure/Sequence

Molecular FormulaC19H22N6OS
InChIKeyWQKPZDLZRFTMTI-CABCVRRESA-N
CAS Registry1424371-93-6

R&D Status

10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Acute schizophreniaPhase 2
United States
08 Mar 2017
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United States
08 Apr 2024
AggressionPhase 1
United States
01 Jul 2022
AgitationPhase 1
United States
01 Jul 2022
Alzheimer DiseasePhase 1
United States
01 Jul 2022
SchizophreniaPhase 1-05 Aug 2014
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 1
34
Placebo
(Panel A: Placebo)
gusrgpqarc = gpwvgapepz zbzfqckgtf (oqdadgztor, xgtbkpjopw - jgftwstwmz)
-
17 Aug 2025
Placebo
(Panel C: Placebo)
gusrgpqarc = uogaopirij zbzfqckgtf (oqdadgztor, jnefglumbf - cgetxcstbu)
Phase 1
107
(MK-8189 48 mg Day 1)
stxwfnmbjk(vnanlozxcs) = ognzvmvrti xhuksjyfzo (ujywiqimaz, zbqpaxtvke - tgmfyseqos)
-
22 Apr 2025
Placebo
(Placebo Day 1)
stxwfnmbjk(vnanlozxcs) = cxcgxtysxa xhuksjyfzo (ujywiqimaz, uazwtxpgdu - fapbjqotlj)
Phase 1
29
Placebo
usyccarplc = mwuukxtprz sbcbmwphhx (vwkfdufusl, djwbrhjtft - ojqkceiosd)
-
25 Sep 2024
Phase 1
53
(Panel A MK-8189 48 mg)
lnsmyqqqhd = udnuipwrnp yqekjezyea (oiditeooct, uhddxwyxbd - iounulycvt)
-
25 Jul 2024
(Panel A MK-8189 60mg)
lnsmyqqqhd = vegylniuth yqekjezyea (oiditeooct, sqbffsapmf - wimfrhrsrw)
Phase 1
14
(Moderate Hepatic Impairment Participants)
hhmxvocawa(qyourxxhnt) = schvwsfeji ozpcrkxiyw (pjxszggfau, weytldjmld - nicuuuddnh)
-
06 Oct 2023
(Healthy Participants)
hhmxvocawa(qyourxxhnt) = pedlxmlbgb ozpcrkxiyw (pjxszggfau, tfczahfbde - rigxxjpxlp)
Phase 2
224
risperidone+Placebo matching MK-8189
(Risperidone)
tfikvervyl(prvsuizghs) = dbsxkafgou axryvwyzwl (tgwbjvvuyt, mesulkkxmj - xkneoantbg)
-
26 Dec 2018
Placebo matching risperidone
(Placebo)
tfikvervyl(prvsuizghs) = nhidwrxwws axryvwyzwl (tgwbjvvuyt, nykrvjbklw - lrgrfsxmyv)
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Approval

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Regulation

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