Last update 24 Feb 2026

Prifetrastat

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
ONE 002, ONE-002, ONE002
+ [3]
Action
inhibitors
Mechanism
KAT6A inhibitors(lysine acetyltransferase 6A inhibitors), KAT6B inhibitors(lysine acetyltransferase 6B inhibitors), Epigenetic drug
Inactive Indication-
Originator Organization
Active Organization
Inactive Organization-
Drug Highest PhasePhase 3
First Approval Date-
Regulation-
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Structure/Sequence

Molecular FormulaC19H18N4O5S
InChIKeyRCBWSTJGOASLEO-UHFFFAOYSA-N
CAS Registry2569008-99-5

R&D Status

10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Advanced breast cancerPhase 3
United States
10 Nov 2025
Advanced breast cancerPhase 3
China
10 Nov 2025
Advanced breast cancerPhase 3
Japan
10 Nov 2025
Advanced breast cancerPhase 3
Argentina
10 Nov 2025
Advanced breast cancerPhase 3
Australia
10 Nov 2025
Advanced breast cancerPhase 3
Belgium
10 Nov 2025
Advanced breast cancerPhase 3
Brazil
10 Nov 2025
Advanced breast cancerPhase 3
Bulgaria
10 Nov 2025
Advanced breast cancerPhase 3
Canada
10 Nov 2025
Advanced breast cancerPhase 3
Czechia
10 Nov 2025
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 1
107
hpdpihjhoj(zcevgzmxan) = The most common G≥3 TRAE was neutropenia (G3: 39.5% vs 20.7%; G4: 7.0% vs 0.0%). The neutropenia was reversible and manageable with dose modifications. No febrile neutropenia was observed. kyvyljccuf (tuxbltarmp )
Positive
30 May 2025
Phase 1
ER-positive/HER2-negative Breast Cancer
ER Positive | HER2 Negative
43
qlxnxqtmiq(hmwwmyqiym) = hulvdfogow brqdqzzxva (waybiuwtcu, 17.2 - 46.1)
Positive
01 Jun 2024
Phase 1
78
lqouxdbqwp(wbqrclueof) = dysgeusia (84.6%; 65.4% G1) daqpmqahvz (memtjbygcg )
Positive
24 May 2024
Phase 1
29
(Part 1A )
wqogkjqtos(zahownsohz) = dysgeusia (72%), anemia (52%), neutropenia (48%), thrombocytopenia (31%), diarrhea (31%), white blood cells (WBC) decreased (28%), fatigue (24%), and aspartate aminotransferase increased (21%); the majority of TRAEs were G1-2. wkhmwyflrg (dfyybzkcul )
Positive
26 May 2023
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Deal

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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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