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12<br />

Results<br />

● <strong>Docetaxel</strong> plus <strong>prednisone</strong> versus mitoxantrone<br />

plus <strong>prednisone</strong> f<strong>or</strong> <strong>the</strong> <strong>treatment</strong> <strong>of</strong> mHRPC. 27<br />

One RCT used docetaxel at two different dosages<br />

in combination <strong>with</strong> estramustine and <strong>prednisone</strong>:<br />

● <strong>Docetaxel</strong> plus <strong>prednisone</strong> plus estramustine<br />

versus mitoxantrone plus <strong>prednisone</strong> f<strong>or</strong> <strong>the</strong><br />

<strong>treatment</strong> <strong>of</strong> mHRPC. 28<br />

One RCT used docetaxel <strong>with</strong> estramustine, but<br />

<strong>with</strong>out <strong>prednisone</strong>/<strong>prednisolone</strong>:<br />

● <strong>Docetaxel</strong> plus estramustine versus<br />

mitoxantrone plus <strong>prednisone</strong> f<strong>or</strong> <strong>the</strong> <strong>treatment</strong><br />

<strong>of</strong> mHRPC. 29<br />

Four trials used mitoxantrone, which is licensed in<br />

<strong>the</strong> UK, but not f<strong>or</strong> patients <strong>with</strong> mHRPC. These<br />

trials were:<br />

● Mitoxantrone plus <strong>prednisone</strong> versus<br />

<strong>prednisone</strong> alone f<strong>or</strong> <strong>the</strong> <strong>treatment</strong> <strong>of</strong><br />

mHRPC. 30,31<br />

● Mitoxantrone plus hydroc<strong>or</strong>tisone versus<br />

hydroc<strong>or</strong>tisone alone f<strong>or</strong> <strong>the</strong> <strong>treatment</strong> <strong>of</strong><br />

mHRPC. 32<br />

● Mitoxantrone plus <strong>prednisone</strong> plus clodronate<br />

versus mitoxantrone plus <strong>prednisone</strong> plus<br />

placebo f<strong>or</strong> <strong>the</strong> <strong>treatment</strong> <strong>of</strong> mHRPC. 33<br />

Clodronate is a medicine used to treat a high<br />

level <strong>of</strong> calcium in <strong>the</strong> blood caused by changes<br />

in <strong>the</strong> body that happen <strong>with</strong> cancer.<br />

Clodronate also treats <strong>the</strong> weakening in <strong>the</strong><br />

bones when cancer has spread to <strong>the</strong> bones<br />

from ano<strong>the</strong>r part <strong>of</strong> <strong>the</strong> body.<br />

A summary <strong>of</strong> <strong>the</strong> seven included RCTs is<br />

presented in Table 1 and full data extraction tables<br />

are presented in Appendix 6.<br />

Relevant studies rep<strong>or</strong>ted in abstract<br />

f<strong>or</strong>m only<br />

In addition to <strong>the</strong> seven included trials f<strong>or</strong> which<br />

<strong>the</strong>re was a full publication available, a fur<strong>the</strong>r two<br />

RCTs were identified that were rep<strong>or</strong>ted in abstract<br />

f<strong>or</strong>m only. No fur<strong>the</strong>r details <strong>of</strong> <strong>the</strong> studies were<br />

obtainable from <strong>the</strong> trialists and <strong>the</strong>ref<strong>or</strong>e <strong>the</strong> trials<br />

were excluded from <strong>the</strong> review. The interventions<br />

that were assessed in <strong>the</strong>se trials were:<br />

● docetaxel plus estramustine versus docetaxel;<br />

Eymard and colleagues (2004) 54<br />

● docetaxel versus docetaxel plus thalidomide;<br />

Salimichokami (2003). 55<br />

These trials are described in Appendix 3.<br />

Systematic reviews/meta-analyses<br />

One systematic review was identified, but was<br />

rep<strong>or</strong>ted only in abstract f<strong>or</strong>m. No fur<strong>the</strong>r details<br />

<strong>of</strong> <strong>the</strong> review were obtainable from <strong>the</strong> reviewers.<br />

The review assessed:<br />

● Chemo<strong>the</strong>rapy efficacy from controlled trials in<br />

HRPC patients; Casciano and colleagues<br />

(2001). 56<br />

Ongoing studies<br />

Four ongoing studies were identified. No fur<strong>the</strong>r<br />

details <strong>of</strong> <strong>the</strong> studies were obtainable from <strong>the</strong><br />

trialists. The interventions that were assessed in<br />

<strong>the</strong>se trials were:<br />

● docetaxel plus <strong>prednisone</strong> plus placebo versus<br />

docetaxel plus <strong>prednisone</strong> plus bevacizumab;<br />

National Cancer Institute (2005) 57<br />

● docetaxel plus <strong>prednisone</strong> versus GVAX ®<br />

prostate cancer vaccine; Cell Genesys 58<br />

● docetaxel plus <strong>prednisolone</strong> versus docetaxel<br />

plus <strong>prednisolone</strong> plus zoledronic acid versus<br />

docetaxel plus <strong>prednisolone</strong> plus <strong>or</strong> minus<br />

zoledronic acid plus strontium-89 (Trapeze<br />

trial); James59 ● mitoxantrone versus paclitaxel plus carboplatin;<br />

Cabrespine and colleagues (2005). 60<br />

Excluded studies<br />

A total <strong>of</strong> 220 rec<strong>or</strong>ds were excluded as <strong>the</strong>y did<br />

not meet <strong>the</strong> inclusion criteria f<strong>or</strong> <strong>the</strong> review.<br />

However, <strong>of</strong> <strong>the</strong>se, 65 papers were used as<br />

background articles f<strong>or</strong> <strong>the</strong> review. The maj<strong>or</strong>ity <strong>of</strong><br />

<strong>the</strong> o<strong>the</strong>r excluded articles were non-systematic<br />

reviews and commentaries <strong>or</strong> non-randomised<br />

studies. A full list <strong>of</strong> <strong>the</strong> excluded studies <strong>with</strong> <strong>the</strong><br />

reasons f<strong>or</strong> exclusion is presented in Appendix 2.<br />

Description <strong>of</strong> included studies<br />

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

summary <strong>of</strong> <strong>the</strong> seven included RCTs. F<strong>or</strong> each<br />

included study a summary <strong>of</strong> <strong>the</strong> trial has been<br />

provided followed by a description <strong>of</strong> <strong>the</strong> trial<br />

quality and <strong>the</strong> results <strong>of</strong> <strong>the</strong> trial. Table 2<br />

summarises <strong>the</strong> pattern <strong>of</strong> comparisons f<strong>or</strong> <strong>the</strong><br />

seven included RCTs.<br />

It can be seen that <strong>the</strong>re are no head-to-head<br />

comparisons <strong>of</strong> docetaxel versus best supp<strong>or</strong>tive<br />

care (c<strong>or</strong>ticosteroids). However, all trials include a<br />

comparison <strong>with</strong> mitoxantrone plus a<br />

c<strong>or</strong>ticosteroid. Theref<strong>or</strong>e, indirect comparisons<br />

using mitoxantrone plus a c<strong>or</strong>ticosteroid as a<br />

common comparat<strong>or</strong> can be used to estimate <strong>the</strong>

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