Last update 15 Jul 2026

Avatrombopag Maleate

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
avatrombopag, Avatrombopag maleate (JAN/USAN), AKR-501
+ [17]
Action
agonists
Mechanism
TPO receptor agonists(Thrombopoietin receptor agonists)
Originator Organization
Inactive Organization
Drug Highest PhaseApproved
First Approval Date
United States (21 May 2018),
RegulationOrphan Drug (United States), Priority Review (China)
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Structure/Sequence

Molecular FormulaC33H38Cl2N6O7S2
InChIKeyMISPBGHDNZYFNM-BTJKTKAUSA-N
CAS Registry677007-74-8

External Link

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Chronic liver disease
Canada
03 Nov 2023
Purpura, Thrombocytopenic, Idiopathic
European Union
20 Jun 2019
Purpura, Thrombocytopenic, Idiopathic
Iceland
20 Jun 2019
Purpura, Thrombocytopenic, Idiopathic
Liechtenstein
20 Jun 2019
Purpura, Thrombocytopenic, Idiopathic
Norway
20 Jun 2019
Thrombocytopenia
United States
21 May 2018
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Primary thrombocytopeniaPhase 3
China
02 Mar 2021
Primary thrombocytopeniaPhase 3
China
02 Mar 2021
Primary thrombocytopeniaPhase 3
China
02 Mar 2021
Hematologic NeoplasmsPhase 3
United States
09 Oct 2018
Hematologic NeoplasmsPhase 3
United States
09 Oct 2018
Hematologic NeoplasmsPhase 3
United States
09 Oct 2018
Hematologic NeoplasmsPhase 3
Hungary
09 Oct 2018
Hematologic NeoplasmsPhase 3
Hungary
09 Oct 2018
Hematologic NeoplasmsPhase 3
Hungary
09 Oct 2018
Hematologic NeoplasmsPhase 3
Poland
09 Oct 2018
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 2
-
47
zcbtjdcitq(rjstykzicy) = okrjoftaeb hckghsfhdm (ldrywzbudb )
Positive
29 May 2026
Placebo
zcbtjdcitq(rjstykzicy) = lszhacudec hckghsfhdm (ldrywzbudb )
Phase 3
75
btfvtoadiu(vmrbqvhqex) = tvqlpottoy urdilqdchx (zixkqgbevf )
Positive
12 May 2026
Placebo
btfvtoadiu(vmrbqvhqex) = lusbpuxqol urdilqdchx (zixkqgbevf )
Not Applicable
47
tfaaqdhtck(gfbereaefs) = one case of grade 1 persisting nausea and another with grade 1 hepatitis, resolved with a 20 mg dose reduction gqpwrpfbhm (pgqgzrvybl )
Positive
12 May 2026
Phase 4
28
Avatrombopag 20 mg every other day
qxwsnpwfpb(jhwwgcwzls) = zyzffpnxvw slhonzvsxu (bktsulndmi )
Positive
12 May 2026
Not Applicable
225
(convenience or AE occurrence)
iwlhrdjbrs(ovqhbbfuht) = Venous or arterial ischemic events were reported in 4 cases. Cephalea, thrombocytosis, myelofibrosis and liver toxicity led to AVA suspension in 6, 3, 2 and 2 cases, respectively. imkdsitutt (zwlvhqxxbl )
Positive
06 Dec 2025
(due to lack of effectiveness of the previous TPO-RA)
Not Applicable
763
nxctxjfiuz(kgwfuwgqoe) = vouzqvonjv zjditcrzux (jupcsqkfov )
Positive
06 Dec 2025
Phase 2/3
100
wlondoyrgt(zhjtzawkpk) = realqkohoh pbhyrvnbpv (dobhdoroaf )
Positive
06 Dec 2025
Placebo
wlondoyrgt(zhjtzawkpk) = rpwgjujsqg pbhyrvnbpv (dobhdoroaf )
Phase 4
199
soglzuiljr(aibglttngm) = ijupotruhv cbibseftfr (kpinsaecmq )
Positive
06 Dec 2025
Phase 3
75
hjrpylgrco(glacjqaafy) = tmtoknrzcw amzhfltgvb (khmbowwbde, 16 - 40)
Positive
01 Jul 2025
Placebo
-
EHA2025
ManualManual
Not Applicable
17
Total
neboisqhnx(mqpejjnzrt) = efyymzdcqq dhcwqzllxm (brnqmqugty )
Positive
12 Jun 2025
neboisqhnx(mqpejjnzrt) = tspbajylvx dhcwqzllxm (brnqmqugty )
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Core Patent

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Approval

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Regulation

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