28.04.2013 Views

Clinical Practice Guidelines for the management of locally advanced ...

Clinical Practice Guidelines for the management of locally advanced ...

Clinical Practice Guidelines for the management of locally advanced ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

10 EMERGING THERAPIES<br />

It is impossible to undertake a comprehensive review <strong>of</strong> all published material in <strong>the</strong> development <strong>of</strong><br />

any set <strong>of</strong> guidelines. However it seemed useful to add an appendix to <strong>the</strong>se guidelines <strong>for</strong> reference<br />

by clinicians looking <strong>for</strong> outcomes <strong>of</strong> randomised control trials in <strong>the</strong> <strong>management</strong> <strong>of</strong> <strong>locally</strong><br />

<strong>advanced</strong> and metastatic prostate cancer. The <strong>the</strong>rapies itemised were <strong>the</strong>rapies <strong>for</strong> <strong>advanced</strong> or<br />

metastatic prostate cancer currently being studied in randomised controlled trials. The National<br />

Institute <strong>of</strong> Health (NIH) registry 1 website and <strong>the</strong> World Health Organization (WHO) primary and<br />

partner registries 2 (found at www.who.int/ictp/network) were searched <strong>for</strong> randomised controlled<br />

phase III trials <strong>of</strong> treatments <strong>for</strong> <strong>advanced</strong> prostate cancer which were ongoing (trial registry updated<br />

2000 or onwards). These registries included <strong>the</strong> National Cancer Institute’s Physician Data Query<br />

cancer clinical trials registry (www.cancer.gov) and <strong>the</strong> Australian New Zealand <strong>Clinical</strong> Trials<br />

Registry (www.anzctr.org.au). Readers are referred to <strong>the</strong>se two registries <strong>for</strong> details <strong>of</strong> ongoing<br />

clinical trials <strong>for</strong> prostate cancer treatments that are recruiting in Australia.. Trials described as<br />

complete were checked <strong>for</strong> publications and trials described as terminated were checked where<br />

possible <strong>for</strong> <strong>the</strong> reasons <strong>the</strong>y were terminated. Trials with mature data included in <strong>the</strong> systematic<br />

reviews or <strong>the</strong>ir appendices were not included. It should be noted that in most cases this summary<br />

depends on <strong>the</strong> in<strong>for</strong>mation provided by <strong>the</strong> trial register, which is not always accurate, clear or<br />

current, and thus it is not a comprehensive review.<br />

10.1 For men with <strong>locally</strong> <strong>advanced</strong> disease<br />

There are numerous continuing trials examining different radio<strong>the</strong>rapy techniques, including intensity<br />

modulated radio<strong>the</strong>rapy (IMRT) and hyp<strong>of</strong>ractionation, dose escalation, and <strong>the</strong> addition <strong>of</strong><br />

radio<strong>the</strong>rapy to hormone <strong>the</strong>rapy and to brachy<strong>the</strong>rapy. Similarly, <strong>the</strong>re are numerous trials examining<br />

different regimens and types <strong>of</strong> hormone <strong>the</strong>rapy as a mono<strong>the</strong>rapy, as an adjuvant or neo-adjuvant to<br />

definitive <strong>the</strong>rapy, and as an addition to adjuvant radio<strong>the</strong>rapy. There are also continuing trials<br />

examining docetaxel as an adjuvant to definitive <strong>the</strong>rapy with or without hormone <strong>the</strong>rapy, and one<br />

study currently recruiting patients <strong>for</strong> a trial <strong>of</strong> chemohormonal <strong>the</strong>rapy as a neoadjuvant to<br />

prostatectomy. In contrast, only two trials were identified that examined surgery (prostatectomy and<br />

cryoablation) and it is unclear whe<strong>the</strong>r <strong>the</strong>y include men with <strong>locally</strong> <strong>advanced</strong> disease. There are at<br />

least two trials that appear to be ongoing, which are examining <strong>the</strong> effects <strong>of</strong> zoledronic acid. A trial is<br />

planned to assess <strong>the</strong> effect <strong>of</strong> a multidisciplinary support program <strong>for</strong> patients undergoing definitive<br />

radio<strong>the</strong>rapy and a trial has been completed <strong>of</strong> <strong>the</strong> is<strong>of</strong>lavenoid genistein. For men on hormone<br />

<strong>the</strong>rapy <strong>the</strong>re are at least four trials testing various exercise regimens as well as a trial <strong>of</strong> green tea<br />

extract.<br />

10.2 For men with biochemical relapse following definitive<br />

<strong>the</strong>rapy<br />

There are at least two trials examining salvage radio<strong>the</strong>rapy; numerous trials examining various<br />

hormone <strong>the</strong>rapy modalities and regimens, including immediate versus delayed; and at least three<br />

trials examining chemo<strong>the</strong>rapy, including docetaxel, as an adjuvant to hormone <strong>the</strong>rapy. Thalidomide<br />

and rosiglitazone are also being studied. In addition, several dietary interventions are being trialled,<br />

including pomegranate juice, lycopene with vitamin E, and an intensive nutritional intervention<br />

focusing on a low-fat diet high in fibre, fruit, vegetable, green tea and vitamin E.<br />

10.3 For men with metastatic disease<br />

There are numerous trials studying <strong>the</strong> addition <strong>of</strong> bisphosphonates, primarily zoledronic acid, to<br />

hormone <strong>the</strong>rapy. There are trials examining various hormone <strong>the</strong>rapy regimens and modalities and<br />

<strong>the</strong> addition <strong>of</strong> doctaxel to hormone <strong>the</strong>rapy. One trial is examining <strong>the</strong> benefits <strong>of</strong> prostate<br />

radio<strong>the</strong>rapy in addition to hormone <strong>the</strong>rapy <strong>for</strong> men diagnosed with metastatic prostate cancer. For<br />

115<br />

Emerging <strong>the</strong>rapies

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!