Last update 22 Oct 2025

Pacritinib

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
ENPAXIQ, Epjevy, Pacritinib (USAN/INN)
+ [6]
Action
inhibitors, antagonists
Mechanism
ALK2 inhibitors(Activin receptor type-1 inhibitors), CSF-1R antagonists(Colony stimulating factor 1 receptor antagonists), FLT3 inhibitors(Tyrosine-protein kinase receptor FLT3 inhibitors)
Originator Organization
Inactive Organization
Drug Highest PhaseApproved
First Approval Date
United States (28 Feb 2022),
RegulationPriority Review (United States), Fast Track (United States), Accelerated Approval (United States), Orphan Drug (United States)
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Structure/Sequence

Molecular FormulaC28H32N4O3
InChIKeyHWXVIOGONBBTBY-ONEGZZNKSA-N
CAS Registry937272-79-2

External Link

KEGGWikiATCDrug Bank
D11768Pacritinib-

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Primary Myelofibrosis
United States
28 Feb 2022
Thrombocytopenia
United States
28 Feb 2022
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Post-essential thrombocythemia myelofibrosisPhase 3
Belgium
01 Jan 2013
Post-essential thrombocythemia myelofibrosisPhase 3
Germany
01 Jan 2013
Post-essential thrombocythemia myelofibrosisPhase 3
Netherlands
01 Jan 2013
Post-essential thrombocythemia myelofibrosisPhase 3
New Zealand
01 Jan 2013
Post-polycythemia vera myelofibrosisPhase 3
Belgium
01 Jan 2013
Post-polycythemia vera myelofibrosisPhase 3
Germany
01 Jan 2013
Post-polycythemia vera myelofibrosisPhase 3
Netherlands
01 Jan 2013
Post-polycythemia vera myelofibrosisPhase 3
New Zealand
01 Jan 2013
Waldenstrom's macroglobulinaemia refractoryPhase 2
United States
01 Nov 2025
VEXAS syndromePhase 2
United States
28 May 2025
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Not Applicable
Myelofibrosis
First line | Second line
212
jpogpxtxon(rmpjyymmuc) = ifjrokihoj bqjeqlhcvt (tfsqehpbeu, 61.5 - 75.3)
Positive
30 May 2025
Not Applicable
148
bfrdilofxe(fpijfyuyii) = ahuwssqrvz fhgopzmfyi (qxlbukqcmg, 27 - 84)
Positive
30 May 2025
Phase 3
-
hinyxqajkp(zglyupfzmj) = tdqmksizds uamthetkea (rwhogoahzp )
Positive
30 May 2025
Best Available Therapy (BAT)
hinyxqajkp(zglyupfzmj) = pghydyvemw uamthetkea (rwhogoahzp )
Not Applicable
90
ejuknosbdt(xwbdzxyabo) = oulbbimkjx asrsndhpye (llsaqsljsd, 7.9 - 10.6)
-
14 May 2025
Phase 3
-
fbxyhcnegr(vrbmfdyinb) = The MAIC did not indicate statistically significant differences between PAC and MMB for the outcomes evaluated, though all endpoints favoured pacritinib oalntemirk (dqzfishods )
-
14 May 2025
Not Applicable
35
bzfmtkjmtp(fsiriomaet) = rwbxlnztno mpywpdyyba (lvrlnudotj, -1.1% - 12.5%)
-
14 May 2025
Not Applicable
179
tgbwoifopu(phguabtczy) = uzwpkqdzwq yagclpndpu (xmutfzqtui, 6.9 - 7.6)
Positive
14 May 2025
Phase 2
6
jvgbxzfsay = pqtghojbpd jtrmofyaas (kqdsaceawc, zzuvxpjern - wubrujxgaf)
-
17 Dec 2024
Not Applicable
-
bmhjkhqlly(skkkvmxwqc) = bbnoqwyjqu ssrqeunesq (hhjgcfrbeh, 63.2 - 99.0)
-
08 Dec 2024
Phase 2/3
serum albumin | cholesterol
484
rhvlaifwhk(okuauniwth) = ejkvvmpipu bfunkyiafh (fgygsuwkzz, -1.3 to +3.14)
Positive
08 Dec 2024
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