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Details

Stereochemistry UNKNOWN
Molecular Formula C17H13ClN4
Molecular Weight 308.765
Optical Activity ( - )
Defined Stereocenters 0 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of LIAROZOLE, (-)-

SMILES

ClC1=CC=CC(=C1)C(N2C=CN=C2)C3=CC=C4N=CNC4=C3

InChI

InChIKey=UGFHIPBXIWJXNA-UHFFFAOYSA-N
InChI=1S/C17H13ClN4/c18-14-3-1-2-12(8-14)17(22-7-6-19-11-22)13-4-5-15-16(9-13)21-10-20-15/h1-11,17H,(H,20,21)

HIDE SMILES / InChI

Molecular Formula C17H13ClN4
Molecular Weight 308.765
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

Liarozole is an imidazole-containing compound that inhibits the cytochrome P-450-dependent metabolism of all-trans-retinoic acid (RA). Liarozole, a retinoic acid (RA) metabolism-blocking agent (RAMBA) in clinical development, has been granted orphan drug designation for congenital ichthyosis by the European Commission and the U.S. Food and Drug Administration. Later, based on the mixed results from a phase II/III trial of liarozole for the treatment of ichthyosis, Barrier decided to discontinue the development of liarozole. Liarozole displays antitumor activity against androgen-dependent and independent rat prostate carcinomas.A large phase III international study was completed comparing liarozole 300 mg twice daily with cyproterone acetate (CPA) 100 mg twice daily in a total of 321 patients with metastatic prostate cancer in relapse after first-line endocrine therapy. The results indicate that liarozole might be a possible treatment option for prostate cancer (PCA) following failure of first-line endocrine therapy.

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
540.0 nM [IC50]
5.0 nM [IC50]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Unknown
Primary
Unknown
Primary
Unknown

Cmax

ValueDoseCo-administeredAnalytePopulation
3.67 mg/L
300 mg single, oral
LIAROZOLE plasma
Homo sapiens

AUC

ValueDoseCo-administeredAnalytePopulation
23.9 mg × h/L
300 mg single, oral
LIAROZOLE plasma
Homo sapiens

PubMed

Sample Use Guides

In Vivo Use Guide
Patients aged ≥ 14 years with moderate/severe lamellar ichthyosis [Investigator's Global Assessment (IGA) score ≥ 3] were randomized 3 : 3 : 1 to receive oral liarozole (75 or 150 mg) or placebo once daily for 12 weeks. Compared with placebo, oral liarozole, 75 or 150 mg, once daily for 12 weeks, reduced the overall severity of ichthyosis and scaling, but not erythema or pruritus, and improved DLQI in patients with moderate or severe lamellar ichthyosis.
Route of Administration: Oral
In Vitro Use Guide
In vitro, liarozole (IC50, 2.2 uM) suppressed the P-450-mediated conversion of RA to more polar metabolites by hamster liver microsomes.
Substance Class Chemical
Record UNII
17NYD2210B
Record Status Validated (UNII)
Record Version