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Details

Stereochemistry RACEMIC
Molecular Formula C10H17NO3
Molecular Weight 199.2469
Optical Activity ( + / - )
Defined Stereocenters 0 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of EPRENETAPOPT

SMILES

COCC1(CO)N2CCC(CC2)C1=O

InChI

InChIKey=BGBNULCRKBVAKL-UHFFFAOYSA-N
InChI=1S/C10H17NO3/c1-14-7-10(6-12)9(13)8-2-4-11(10)5-3-8/h8,12H,2-7H2,1H3

HIDE SMILES / InChI

Molecular Formula C10H17NO3
Molecular Weight 199.2469
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry RACEMIC
Additional Stereochemistry No
Defined Stereocenters 0 / 1
E/Z Centers 0
Optical Activity ( + / - )

Description

APR-246 is a methylated form of PRIMA-1, 2-hydroxymethyl-2-methoxymethyl-aza-bicyclo[2.2.2]octan-3-one (PRIMA-1MET). APR-246, is a prodrug that is converted to the Michael acceptor methylene quinuclidinone (MQ) that binds covalently to cysteines in p53, leading to refolding and restoration of wild type p53 function. MQ also targets the cellular redox balance by inhibiting thioredoxin reductase (TrxR1) and depleting glutathione. APR-246 can rescue mutant forms of the p53 family members p63 and p73 that share high sequence homology with p53. APR-246 has demonstrated compelling pre-clinical antitumor activity in a wide variety of solid and hematological (blood) tumors, including ovarian cancer, small cell lung cancer, esophageal cancer and acute myeloid leukemia (AML), among others. Furthermore, strong synergy has been seen with both traditional anticancer agents, such as chemotherapy, as well as newer mechanism-based anticancer drugs. A Phase I clinical study has been completed, demonstrating a favorable safety profile and both biological and clinical responses in hematological tumors with mutations in the p53 gene. A Phase Ib clinical study in combination with full dose chemotherapy (carboplatin and pegylated liposomal doxorubicin) has also been completed, demonstrating a favorable safety profile in patients with high-grade serous ovarian cancer (HGSOC). APR-246 is currently in a Phase II clinical trial in patients with HGSOC, and additional Phase Ib clinical studies of APR-246 in other cancer indications are planned.

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown
Primary
Unknown
Primary
Unknown

Cmax

ValueDoseCo-administeredAnalytePopulation
57.1 mg/mL
60 mg/kg single, intravenous
APR-246 plasma
Homo sapiens
55.4 mg/mL
60 mg/kg 1 times / day multiple, intravenous
APR-246 plasma
Homo sapiens
82.6 mg/mL
90 mg/kg single, intravenous
APR-246 plasma
Homo sapiens

AUC

ValueDoseCo-administeredAnalytePopulation
347 mg × h/mL
60 mg/kg single, intravenous
APR-246 plasma
Homo sapiens
356 mg × h/mL
60 mg/kg 1 times / day multiple, intravenous
APR-246 plasma
Homo sapiens
584 mg × h/mL
90 mg/kg single, intravenous
APR-246 plasma
Homo sapiens

T1/2

ValueDoseCo-administeredAnalytePopulation
3.56 h
60 mg/kg single, intravenous
APR-246 plasma
Homo sapiens
3.71 h
60 mg/kg 1 times / day multiple, intravenous
APR-246 plasma
Homo sapiens
4.71 h
90 mg/kg single, intravenous
APR-246 plasma
Homo sapiens

Overview

OverviewOther

Other InhibitorOther SubstrateOther Inducer

Drug as perpetrator​

Drug as victim

PubMed

Sample Use Guides

In Vivo Use Guide
APR-246 was administered as a 2-hour intravenous infusion once per day for 4 consecutive days in 22 patients with hematologic malignancies and prostate cancer. Acute myeloid leukemia (AML; n = 7) and prostate cancer (n = 7) were the most frequent diagnoses. Starting dose was 2 mg/kg with dose escalations up to 90 mg/kg. Maximum-tolerated dose was defined as 60 mg/kg.
Route of Administration: Intravenous
In Vitro Use Guide
APR-246 (PRIMA-1MET) treatment of epithelial ovarian cancer cell lines resulted in rapid apoptosis at various concentrations (24 h IC50 2.6-20.1 µM).
Substance Class Chemical
Record UNII
Z41TGB4080
Record Status Validated (UNII)
Record Version