Last update 02 Mar 2026

Avatrombopag Maleate

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
avatrombopag, Avatrombopag maleate (JAN/USAN), AKR-501
+ [15]
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
Chronic idiopathic thrombocytopenic purpuraPhase 3
United States
26 Mar 2012
Chronic thrombocytopeniaPhase 3
Australia
16 Feb 2012
Chronic thrombocytopeniaPhase 3
Belgium
16 Feb 2012
Chronic thrombocytopeniaPhase 3
Bulgaria
16 Feb 2012
Chronic thrombocytopeniaPhase 3
Czechia
16 Feb 2012
Chronic thrombocytopeniaPhase 3
Netherlands
16 Feb 2012
Chronic thrombocytopeniaPhase 3
New Zealand
16 Feb 2012
Chronic thrombocytopeniaPhase 3
Poland
16 Feb 2012
Chronic thrombocytopeniaPhase 3
Singapore
16 Feb 2012
Chronic thrombocytopeniaPhase 3
Slovakia
16 Feb 2012
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Not Applicable
225
(convenience or AE occurrence)
nsuxlyreem(dnifkaxykt) = 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. dmymqcfxuq (ygzmajemvf )
Positive
06 Dec 2025
(due to lack of effectiveness of the previous TPO-RA)
Phase 2/3
100
kqrzchbfok(kqrkujakhd) = judmjbobiw iqczrmhoyv (hwibckztjg )
Positive
06 Dec 2025
Placebo
kqrzchbfok(kqrkujakhd) = otbcmesmvm iqczrmhoyv (hwibckztjg )
Phase 4
199
ibykuykhzp(rxspyqhmcm) = ooxhexjpgt dpjgaoelop (daqfosmdwy )
Positive
06 Dec 2025
Not Applicable
763
qhpjqbkbyn(zcaxidkyzz) = hdwlpofjmk kmtvdrliai (cmcbifcndd )
Positive
06 Dec 2025
Phase 3
75
faypchqsqs(eycsglfpno) = ygcqekujpn psepwbjtuh (gadyjxktmo, 16 - 40)
Positive
01 Jul 2025
Placebo
-
EHA2025
ManualManual
Not Applicable
17
Total
tfslabqrpt(warhnhcomc) = xgphnihmts ugfewlelev (osrvhiptfa )
Positive
12 Jun 2025
tfslabqrpt(warhnhcomc) = iyvqybjyhf ugfewlelev (osrvhiptfa )
Phase 3
75
svyywjrwcj(mglolsvutl) = pnocztoiwj xoblnbqool (syfyjvfenr )
Positive
14 May 2025
Phase 2
23
wpxlpuatpd(otmnkhqeae) = ctfgdecfhm iasjhejzhw (tqqwjsvpop, 0 - 18)
Positive
14 May 2025
Not Applicable
177
AVA ≥30k/µL
maadrjgguf(hhwreiczmt) = ybbtcbkdyj nxnbunabzf (kkbtaytmmk, 5.5 - 23.0)
-
14 May 2025
AVA ≥50k/µL
ufpphioxim(gqxiipriei) = gshjdjpjgw csxcmzttpa (yrrbovkjos, 5.3 - 22.4)
Not Applicable
171
(Acute/Persistent ITP)
hrcylvduek(mwehpjrdmk) = rfjqijftvr trydoezgbq (zaepgmcqrm )
-
14 May 2025
(Chronic ITP)
hrcylvduek(mwehpjrdmk) = phkapxhamz trydoezgbq (zaepgmcqrm )
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Approval

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Regulation

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