Cladribine drug data and news

Cladribine drug data, resources, and news articles (when available). Onconews.org provides news on cancer research. This section, which includes profiles on medicines that may or not be cancer-related is in beta form. If things run smoothly we will be releasing a new format late in the summer of 2006.

Generic name Cladribine
Brand Names/Synonyms 2 Chlorodeoxyadenosine; Chlorodeoxyadenosine; Cladribine; Cladribine [Usan:Ban:Inn]; Leustatin
Indication For the treatment of active Hairy Cell Leukemia as defined by clinically significant anemia, neutropenia, thrombocytopenia or disease-related symptoms
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Description Not Available
Pharmacology Cladribine is a synthetic antineoplastic agent indicated for the treatment of active Hairy Cell Leukemia as defined by clinically significant anemia, neutropenia, thrombocytopenia or disease-related symptoms. Cladribine is an antimetabolite. Cladribine's action is cell cycle-phase nonspecific; cladribine affects both dividing and resting lymphocytes.
Mechanism Of Action Cladribine is structurally related to fludarabine and pentostatin but has a different mechanism of action. It is phosphorylated by deoxycytidine kinase to the corresponding nucleotide CdATP which accumulates and is incorporated into the DNA of cells such as lymphocytes. The phosphorylated metabolites of cladribine tend to accumulate in cells with a high ratio of deoxycytidine kinase activity to 5' nucleotidase activity (lymphocytes, monocytes ) and are converted to the active triphosphate deoxynucleotide. Intracellular accumulation of toxic deoxynucleotides selectively kills these cells, which become unable to properly repair single-strand DNA breaks, leading to disruption of cell metabolism. In addition, there is some evidence that deoxynucleotides are incorporated into the DNA of dividing cells and impair DNA synthesis. Cladribine also induces apoptosis (a form of programmed cell death in sensitive cells). Cladribine is resistant to the action of adenosine deaminase (ADA), which normally deaminates deoxyadenosine to deoxyinosine.
Cladribine News
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Dosage Forms SOLUTION
Drug_Category Immunosuppressive Agents; Antineoplastic Agents; ATC:L01BB04
Absorption Oral bioavailability is 34-48%
Interactions Interactions for Cladribine:

There are no known drug interactions with LEUSTATIN Injection. Caution should be exercised if LEUSTATIN Injection is administered before, after, or in conjunction with other drugs known to cause immunosuppression or myelosuppression.

Toxicity Side effects include nausea and vomiting, lymphopenia, anemia, neutropenia and fever
Organisms Affected Humans and other mammals
Chemical IUPAC Name 5-(6-amino-2-chloro-purin-9-yl)-2-(hydroxymethyl)oxolan-3-ol
Chemical Formula C10H12ClN5O3
Molecular Weight 285.687 g/mol
Smiles String C1C(C(OC1N2C=NC3=C2N=C(N=C3N)Cl)CO)O
Melting Point Not Available
Water Solubility Not Available
State Solid
LogP/Hphobicity 1.57
Isoelectric Point Not Available
Biotransformation Metabolized in all cells with deoxycyticine kinase activity to t-chloro-2’-deoxyadenosine-5’-triphosphate
Half Life 5.4 hours, with a half life in leukemic cells of 23 hours
Protein Binding [%] 20%
RxList Link RXlist
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Drug Reference http://www.drugs.com/cons/Cladribine.html
http://www.rxlist.com/cgi/generic3/cladribine.htm
http://www.pharmgkb.org/views/index.jsp?objId=
Drug Type Approved Drug
Accession No APRD00260
CAS Registry Number 4291-63-8
KEGG Compound ID D01370
PubChem ID SID:163106
PharmGKB ID PA449027
SwissProt ID Not Available
GenBank ID Not Available
Drug ID Number [DIN] 2022117

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