Xgeva vs Estrogen Patch against bone ... - Advanced Prostate...

Advanced Prostate Cancer

22,277 members27,978 posts

Xgeva vs Estrogen Patch against bone loss?

12 Replies

my husband will begin ADT, probably Firmagon. since he has already some micro bone mets and to some degree osteopenia, bone loss while on ADT is an even more serious issue.

What are the differences in this regard between Xgeva and E2 add-back in men undergoing non-estrogen ADT?

Read more about...
12 Replies
GP24 profile image
GP24

Xgeva will make the bones "harder" and mitigate bone loss this way. The guidelines recommend it. I personally will never take it because I think estrogen patches are the better alternative.

Estrogen patches avoid bone loss because bone loss is caused by the low estrogen levels caused again by low testosterone. E2 can even increase bone density again.

in reply toGP24

How much do you take as E2 patch?

GP24 profile image
GP24 in reply to

I currently do not use ADT but a patient I know follows the recommendation of Dr. Myers. He uses a 100 ug (=0,1 mg) patch twice a week.

He uses Vivelle patches. Not all patches work equally well, you have to monitor the estrogen level while using them and see if it increases to a normal value and not above that.

Tall_Allen profile image
Tall_Allen

They work in different ways but accomplish the same thing - preserving bone mineral density. Adding estrogen will also reduce his hot flashes and preserve lean body mass, and it doesn't carry a risk of jaw necrosis. Take with 10 mg tamoxifen to prevent gynecomastia.

in reply toTall_Allen

I spoke today to the oncologist and he asked if I have any at least phase 3 study for my wish to have estrogen patch instead of Prolia. do you know one? what would be the dosage?

Tall_Allen profile image
Tall_Allen in reply to

There are no such studies that I know of. Richard Wassersug may know more. You may want to PM him (Wassersug).

in reply toTall_Allen

ok, but normally you don't like advises based on individual cases and still you thought it could be a good idea. Where does it come from? Maybe many cases you know?

Tall_Allen profile image
Tall_Allen in reply to

I didn't say there was a comparative study. There have been large-scale studies on estrogen for BMD, and different large-scale studies on denosumab for BMD, like these studies in post-menopausal women:

ncbi.nlm.nih.gov/pmc/articl...

ncbi.nlm.nih.gov/pmc/articl...

in reply toTall_Allen

ok for BMD, but maybe it could have adverse affects on ADT efficacy?

Tall_Allen profile image
Tall_Allen in reply to

It increases ADT efficacy:

touchoncology.com/androgen-...

"There was no significant change in serum testosterone or luteinizing hormone levels."

goldjournal.net/article/S00...

"ADT is an incomplete treatment. For a more complete treatment of PCa, we recommend concurrent androgen and estrogen ablation, together with the inhibition of selected steroid biosynthetic enzymes."

ar.iiarjournals.org/content...

in reply toTall_Allen

here we are speaking of additional low dose ed patch, not e2 adt therapy, right?

Tall_Allen profile image
Tall_Allen in reply to

There was an RCT of ADT + toremifene, a selective estrogen receptor modulator, vs ADT:

auajournals.org/doi/10.1016...

Not what you're looking for?

You may also like...

Transdermal Estrogen and Bone Mineral Density

Transdermal estrogen patches are sometimes used as an alternative to the traditional Luteinising...
JoelT profile image

Xgeva and Bone Mets

Fighting PC since December of 2003. Under Dr. Myers was in long term remission until 2015 when PSA...
SUPERHEAT12 profile image

Estrogen Patch ADT

My personal experience was that during the 6 months I was on estrogen patches, my testosterone was...

PET/CT vs Nuc Med Bone scan

Does anyone have a position on a standard Nuc Med bone scan vs. a PET/CT scan prior to radiation...
tcp5071967 profile image

Xgeva for bone metastisis

I have been on Eligard and Zytiga/Prednisone for less than a month. I have a few lesions in the...

Moderation team

Bethishere profile image
BethishereAdministrator
Number6 profile image
Number6Administrator
Darryl profile image
DarrylPartner

Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.

Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.