FLUDARA

Country: South Africa

Language: English

Source: South African Health Products Regulatory Authority (SAHPRA)

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Patient Information leaflet

                                INDICATIONS [/za_1085.html#1]
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IDENTIFICATION [/za_1085.html#1]
  [/za_1085.html#1]    PATIENT INFORMATION
FLUDARA
SCHEDULING STATUS:
S4
PROPRIETARY NAME
(and dosage form):
FLUDARA
STERILE LYOPHILISED SOLID CAKE FOR SOLUTION
COMPOSITION
Each vial contains 50 mg 
FLUDARABINE 
phosphate as a lyophilised solid cake (equivalent to 39,05 mg fludarabine per
vial).
PHARMACOLOGICAL CLASSIFICATION
A. 26 Cytostatic agents.
PHARMACOLOGICAL ACTION
PHARMACODYNAMIC PROPERTIES
Fludara contains fludarabine phosphate, a fluorinated nucleotide analogue of the antiviral agent vidarabine, 9-beta-D-
arabinofuranosyladenine (ara-A) that is relatively resistant to deamination by adenosine deaminase.
Fludarabine phosphate is rapidly dephosphorylated to 2-fluoro-ara-A which is taken up by cells and then
phosphorylated intracellularly by deoxycytidine kinase to the active triphosphate, 2-fluoro-ara-ATP. This metabolite has
been shown to inhibit ribonucleotide reductase, DNA polymerase alpha/delta and epsilon, DNA primase and DNA
ligase thereby inhibiting DNA synthesis. Furthermore, partial inhibition of RNA polymerase II and consequent reduction
in protein synthesis occurs.
While some aspects of the mechanism of action of 2-fluoro-ara-ATP are as yet unclear, it is assumed that effects on
DNA, RNA and protein synthesis all contribute to inhibition of cell growth with inhibition of DNA synthesis being the
dominant factor.
In addition, in vitro studies have shown that exposure of chronic lymphocytic leukaemia lymphocytes to 2F-ara-A
triggers 
                                
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