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Docetaxel with prednisone or prednisolone for the treatment of ...

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4<br />

Background<br />

Options include second-line h<strong>or</strong>monal <strong>the</strong>rapy,<br />

chemo<strong>the</strong>rapy <strong>with</strong> <strong>or</strong> <strong>with</strong>out c<strong>or</strong>ticosteroids and<br />

best supp<strong>or</strong>tive care, dependent on <strong>the</strong> symptoms,<br />

site <strong>of</strong> relapse, perf<strong>or</strong>mance status <strong>of</strong> <strong>the</strong> patient<br />

and presence <strong>of</strong> o<strong>the</strong>r co-m<strong>or</strong>bidities. 9 Best<br />

supp<strong>or</strong>tive care can be provided <strong>with</strong> radio<strong>the</strong>rapy,<br />

bisphosphonates, steroids and analgesics and is<br />

<strong>the</strong> only option f<strong>or</strong> patients who are too ill to<br />

tolerate fur<strong>the</strong>r active intervention. Treatment in<br />

this setting is aimed at improvement <strong>of</strong> symptoms<br />

and control ra<strong>the</strong>r than cure. 8<br />

Current advice from <strong>the</strong> National Institute f<strong>or</strong><br />

Health and Clinical Excellence (NICE) states that<br />

chemo<strong>the</strong>rapy should be considered and trials<br />

<strong>of</strong> chemo<strong>the</strong>rapy supp<strong>or</strong>ted, and palliative<br />

radio<strong>the</strong>rapy should also be considered as a<br />

<strong>treatment</strong> option. 8 The use <strong>of</strong> chemo<strong>the</strong>rapy in<br />

mHRPC in <strong>the</strong> UK is widespread and likely to<br />

increase (Mason M, Pr<strong>of</strong>ess<strong>or</strong> <strong>of</strong> Clinical Oncology,<br />

Cardiff University, UK: personal communication,<br />

2005).<br />

Description <strong>of</strong> new intervention<br />

<strong>Docetaxel</strong> is a member <strong>of</strong> a class <strong>of</strong> drugs known<br />

as taxanes, derived from precurs<strong>or</strong> extracted from<br />

<strong>the</strong> needles <strong>of</strong> <strong>the</strong> European yew tree, Taxus<br />

baccata. 14 <strong>Docetaxel</strong> is a mitotic inhibit<strong>or</strong>, which<br />

acts by disrupting <strong>the</strong> microtubular netw<strong>or</strong>k that is<br />

essential f<strong>or</strong> mitotic and interphase cellular<br />

functions. It promotes <strong>the</strong> assembly <strong>of</strong> tubulin into<br />

stable microtubules and inhibits microtubule<br />

depolymerisation, causing inhibition <strong>of</strong> cell<br />

division and cell death. 15<br />

<strong>Docetaxel</strong><br />

The following section <strong>of</strong> <strong>the</strong> rep<strong>or</strong>t summarises<br />

<strong>the</strong> product characteristics f<strong>or</strong> docetaxel, available<br />

from <strong>the</strong> electronic Medicine Compendium 16<br />

(www.medicines.<strong>or</strong>g.uk/).<br />

<strong>Docetaxel</strong> (Taxotere ® , San<strong>of</strong>i-Aventis) is available as<br />

a 20- <strong>or</strong> 80-mg concentrate and solvent f<strong>or</strong> solution<br />

f<strong>or</strong> infusion. <strong>Docetaxel</strong> is licensed f<strong>or</strong> use in<br />

combination <strong>with</strong> <strong>prednisone</strong> <strong>or</strong> <strong>prednisolone</strong> f<strong>or</strong><br />

<strong>the</strong> <strong>treatment</strong> <strong>of</strong> patients <strong>with</strong> mHRPC. Prednisone<br />

is not used in <strong>the</strong> UK, but it is reasonable to use<br />

docetaxel plus <strong>prednisone</strong> data in this review <strong>of</strong><br />

docetaxel plus <strong>prednisolone</strong>. <strong>Docetaxel</strong> is<br />

administered as a 1-hour infusion once every<br />

3 weeks. The recommended dose is 75 mg/m 2 ,<br />

whereas <strong>prednisone</strong>/<strong>prednisolone</strong> should be<br />

administered continuously, at a dose <strong>of</strong> 5 mg <strong>or</strong>ally<br />

twice per day. Safety and efficacy have not been<br />

established f<strong>or</strong> children, and <strong>the</strong>re are no special<br />

instructions f<strong>or</strong> <strong>the</strong> use <strong>of</strong> docetaxel in <strong>the</strong> elderly.<br />

New guidelines prepared by <strong>the</strong> British<br />

Association <strong>of</strong> Urological Surgeons (BAUS)<br />

propose considering <strong>the</strong> use <strong>of</strong> docetaxel f<strong>or</strong><br />

symptomatic patients who are fit f<strong>or</strong><br />

chemo<strong>the</strong>rapy. 17 It is acknowledged that <strong>the</strong><br />

clinical management <strong>of</strong> mHRPC is multimodal<br />

ra<strong>the</strong>r than sequential and at any given time a<br />

patient may receive a combination <strong>of</strong> palliative<br />

<strong>treatment</strong>s.<br />

Contraindications<br />

● Hypersensitivity to <strong>the</strong> active substance <strong>or</strong> any<br />

component <strong>of</strong> <strong>the</strong> medicinal product<br />

● baseline neutrophil count <strong>of</strong>

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