Identification
- Generic Name
- CTA018
- DrugBank Accession Number
- DB05024
- Background
CTA018 is a member of a new class of vitamin D analogues with a dual mechanism of action, called Vitamin D Signal Amplifiers. This proprietary new drug is both a potent inhibitor of CYP24 (the enzyme responsible for the breakdown of vitamin D) and a potent activator of vitamin D signaling pathways. CTA018 will be the first drug with this novel dual mechanism of action to enter clinical development. Preclinical studies have shown that CTA018 inhibits the proliferation of rapidly dividing cells such as human epidermal keratinocytes (skin cells) and is also effective in inhibiting pro-inflammatory cytokine secretion which may be involved in the etiology of psoriasis. Cytochroma anticipates that CTA018 will be more potent than currently marketed vitamin D analogues such as calcitriol and calcipotriol and it is expected to have a greater safety index.
- Type
- Small Molecule
- Groups
- Investigational
- Synonyms
- Not Available
Pharmacology
- Indication
Investigated for use/treatment in kidney disease and psoriasis and psoriatic disorders.
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Not Available
- Mechanism of action
CTA018 is a rationally designed Vitamin D hormone analog that acts as both a potent VDR agonist and CYP24 inhibitor. The Company believes this dual mechanism of action will provide efficacy and safety advantages over existing Vitamin D hormone replacement therapies for SHPT. CTA018 binds to the VDR located in parathyroid cells and triggers a genomic cascade of events resulting in suppression of PTH secretion. It also binds to the substrate binding pocket of CYP24, a cytochrome P450 enzyme that specifically and efficiently catabolizes Vitamin D hormones. By binding to CYP24 and blocking its activity, CTA018 levels in cells are more readily raised to therapeutic levels. Unlike common cytochrome P450 inhibitors (such as ketoconazole) which act non-specifically on all cytochromes, CTA018 specifically targets CYP24, making drug-drug interactions far less likely. The Company believes the novel dual activity of CTA018 will reduce the incidence of clinically-acquired resistance to Vitamin D hormone replacement therapy, allowing greatly improved efficacy at well tolerated dosages.
Target Actions Organism U1,25-dihydroxyvitamin D(3) 24-hydroxylase, mitochondrial Not Available Humans UVitamin D3 receptor Not Available Humans - Absorption
Not Available
- Volume of distribution
Not Available
- Protein binding
Not Available
- Metabolism
- Not Available
- Route of elimination
Not Available
- Half-life
Not Available
- Clearance
Not Available
- Adverse Effects
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Not Available
- Pathways
- Not Available
- Pharmacogenomic Effects/ADRs
- Not Available
Interactions
- Drug Interactions
- This information should not be interpreted without the help of a healthcare provider. If you believe you are experiencing an interaction, contact a healthcare provider immediately. The absence of an interaction does not necessarily mean no interactions exist.Not Available
- Food Interactions
- Not Available
Categories
- Drug Categories
- Not Available
- Classification
- Not classified
- Affected organisms
- Not Available
Chemical Identifiers
- UNII
- XN4TL6M50Z
- CAS number
- Not Available
- InChI Key
- Not Available
- InChI
- Not Available
- IUPAC Name
- Not Available
- SMILES
- Not Available
References
- General References
- Not Available
- External Links
- PubChem Substance
- 347909898
Clinical Trials
- Clinical Trials
Phase Status Purpose Conditions Count 2 Completed Treatment Chronic Kidney Disease (CKD) / Renal Failure, Chronic Renal Failure / Renal Insufficiency,Chronic / Secondary Hyperparathyroidism (SHPT) 1 2 Completed Treatment Psoriasis 1
Pharmacoeconomics
- Manufacturers
- Not Available
- Packagers
- Not Available
- Dosage Forms
- Not Available
- Prices
- Not Available
- Patents
- Not Available
Properties
- State
- Solid
- Experimental Properties
- Not Available
- Predicted Properties
- Not Available
- Predicted ADMET Features
- Not Available
Spectra
- Mass Spec (NIST)
- Not Available
- Spectra
- Not Available
Targets
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- General Function
- Oxidoreductase activity
- Specific Function
- Has a role in maintaining calcium homeostasis. Catalyzes the NADPH-dependent 24-hydroxylation of calcidiol (25-hydroxyvitamin D(3)) and calcitriol (1-alpha,25-dihydroxyvitamin D(3)). The enzyme can...
- Gene Name
- CYP24A1
- Uniprot ID
- Q07973
- Uniprot Name
- 1,25-dihydroxyvitamin D(3) 24-hydroxylase, mitochondrial
- Molecular Weight
- 58874.695 Da
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- General Function
- Zinc ion binding
- Specific Function
- Nuclear hormone receptor. Transcription factor that mediates the action of vitamin D3 by controlling the expression of hormone sensitive genes. Recruited to promoters via its interaction with BAZ1B...
- Gene Name
- VDR
- Uniprot ID
- P11473
- Uniprot Name
- Vitamin D3 receptor
- Molecular Weight
- 48288.64 Da
Drug created at October 21, 2007 22:23 / Updated at June 12, 2020 16:52