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@mayblin Once again, thank you for sharing all this info. So helpful. I know that Tymlos (and so Forteo, too) raises both P1NP and CTX, so stopping it would naturally bring them both down -- though, somewhere along the line I saw some data showing that it takes a few months at least for the CTX to decrease. Then, I guess, the HRT helped the process along and took over.

My gut always tells me that I want the P1NP to be higher, but I know the bone-remodeling process is tightly coupled between buildup and breakdown -- and hence that coupling between CTX and P1NP.

I will certainly share my endo's CTX target once I get it, but I won't be seeing her until November.

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Replies to "@mayblin Once again, thank you for sharing all this info. So helpful. I know that Tymlos..."

@mayblin -- Just wanted to clarify that by all those "I know that ..." I don't really know that!! I am just trying to piece together everything and make sense of it. Please correct my thinking/hyposthesizing as needed!!

@sebutler yes, you’re quite right that the btm results I showed you reflect the combined effects of stopping Forteo and starting HRT. They eventually reached a “steady state” with DXA confirmation so we are very comfortable with the current dose. As I mentioned before about CTX being relatively more informative than P1NP during antiresorptive treatment, I still monitor both, now less frequently - every 6mo or so - just to see how they behave together.