Not happy with change of treatment.

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First the background. 

Radical prostectomy, 2016. PSA went back up after 18 months, so radiotherapy. All good till late 2021, PSA rising. Not uitable for SABR, so put on Enzalutamide when PSA was 1.0. Reduced to less than 0.03 within a year with some side effects but nothing that bothered me overly. 2 months ago, in a routine tc with my consultant, he asked me whether I had ever had hormone injections, which I hadn't. He then told me I should have been on them from the start of the Enzalutamide and that the funding of the Enzalutamide was dependant on having the injections. However, I have a letter to my GP in 2022 which stated the funding had been approved and there was no mention of the injections. The upshot of this is that the hormone injections have raised my blood pressure, which my GP is struggling to sort, and I am getting various other side effects which I did not have before.

I have messaged my Macmillan nurse and a prostate specific nurse but neither have been helpful at all, basically saying I have got to go along with the consultant. I would point out I had a change of consultant about 2 yeats ago. Has anyone had any experience of this type of situation and can I, unilaterally, stop the injections.  

  • Hello Peter  ( 

    I can understand your post - your treatment has been changed and the side effects have kicked in. I did a little bit of "digging" and found the advice from NICE regarding the prescribing of Enzalutamide and there is a link to this here:

    NICE guidelines prescribing Enzalutamide

    My reading of this is it works better if used in conjunction with Hormone Therapy.

    I have been on HT for 3 years and had every side effect going - plus some not on the list. I have tolerated them and life has gone on much as normal. I have had to make changes with my medication for both blood pressure and type 2 diabetes but a quick conversation with our GP pharmacist sorted the issue out.

    I do hope this helps, if I can do anything else for you please do let me know.

    Best wishes - Brian.

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  • Thanks for that link but it does not explain why I was given Enzalutamide on it's own 3 years ago when that advice was already out unless my consultant was too focussed on his retirement back to Poland. C'est la vie. Onwards and upwards. I'm still here when one of my mates was diagnosed too late.

  • Hello Peter

    It's called the NATIONAL Health Service - but it's the individual consultants who go their own way. We can have 2 Community Members with the same diagnosis but under two different health authorities and they both get a totally different treatment path.

    I know the statistics for Prostate Cancer diagnosis and I am under a large group GP practice but quite often when I go in with an issue - type 2 diabetes for example, the first words the GP says are "What do YOU think we should do Brian?

    I am a great believer we should all understand our medication/issues and at least try and advocate for ourselves - but when the GP/Consultants are all different well - what can I say.

    As you said 

    Onwards and upwards.

    Best wishes - Brian.

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  • Good morning  . There was a trial using Enzalutamide monotherapy and comparing it to Leuprolide monotherapy or a combination of the two. There was a 3% improvement in progression free survival with the combined therapy compared to Enzalutamide monotherapy and a 7% improvement in overall survival. Consultants do have some autonomy on what they prescribe so maybe either have a reasoned discussion with your current consultant or seek a second opinion at a centre of excellence.

    https://www.nejm.org/doi/full/10.1056/NEJMoa2303974

    The FDA (American governing body) has recently approved Enzalutamide monotherapy for high risk patients and usually NICE takes a while for it to subsequently get through their governing systems. This has been as a result of a trial which has been ongoing for 8 years.

    https://www.cancer.gov/news-events/cancer-currents-blog/2024/fda-xtandi-prostate-cancer-psa-recurrence

    Interestingly this article also suggests that if you have demonstrated a good response to the therapy with a negligible PSA over a period of time then there might be some benefit of coming off the HT until the PSA starts to rise again. This can have the benefit of giving your body a rest plus it can increase the time before the cancer becomes hormone resistant.