@mesocortical
Welcome!
I am also a HER2+ ; hormone negative breast cancer patient. We are unfortunate having more or less the most aggressive type of breast cancer, but lucky in that thanks to research in the States, there are now targeted therapies that have significantly improved our chances of survival over the last 20 or so years. I'm assuming you are also unfortunately hormone negative (ER- and PR-)?
Well done getting through your chemo. I'm sorry to hear you had neutropenic sepsis. I also suffered badly on chemo.
Our treatment plans were a bit different:
I started with 4 cycles of EC chemo every 2 weeks followed by 12 weekly Paclitaxels. AFAIK EC chemo is given to people with locally advanced and/or Grade 3 cancer. Am I right in thinking yours is early stage and Grade 2? My HP part of your TCHP started with the Paclitaxel.
I didn't finish chemo but stopped early due to side effects, so well done you for carrying on all the way through; I know it can be horrific.
Our surgery is different. I had a full mastectomy plus full lymph node clearance. I didn't go for reconstruction which was lucky because I had ongoing problems with seroma (liquid building up where the breast had been) and didn't feel anywhere near well enough after months of chemo for DIEP. However, I think the majority of women do go for DIEP from what I was told. It's a very personal choice.
Our radiotherapy is the same. The Marsden told me the 1 -week version is only for low risk patients, so ER+ and HER2-neg. I was originally told it'd be 17-18 days but was actually given 15 in the end. My radiotherapy was 20 minutes zapping time lying on the bed and I found it the easiest part of the treatment plan. Blue Aveena cream along with La Roche Posay Ciclaplast Balm worked well for my skin which went a little red but was basically fine. My skin did thicken though.
Not surprised at all you couldn't work. Treatment for HER2+ ; hormone negative cancer is absolutely brutal and the treatment plan is long.
My treatment plan following surgery was for either Kadcyla or a continuation of HP aka Herceptin & Perjeta aka Phesgo. Like @demivolte I continued on Phesgo as opposed to switching to Kadcyla.
After surgery, I had DCIS in the histopathology report which the Marsden said is not cancer (I know some people say it is, but it certainly isn't invasive). That meant they viewed it as pathological complete response (pCR) and that was why I continued on Phesgo.
Nurses on my chemo unit told me (before I had surgery and might have gone on it) that they often administer Kadcyla and that people tend to find it 'kinder' than the neoadjuvant chemos.
I am a few months post treatment now and doing ok. I still have neuropathy, chest lymphoedema and problems with my short term memory. But if the treatment truly was a success then it was well worth it. Time will tell. HER2+ hormone negative, Grade 3, large tumour with lymph involvement makes me very high risk despite the pCR. I hope your situation is less advanced and Grade 2 (AFAIK HER2+ is never as slow growing as Grade 1).
xxx