I was diagnosed in October 2016 de novo with bone mets and was fortunate enough to get onto a trial for Ibrance/Palbociclib and Letrozole. I count myself as one of the lucky ones and am so grateful that I met the criteria. I'm on my seventh cycle currently. Cycles are Letrozole every day without stopping and Palbo every day for three weeks then a week's break followed by a blood test to check if the neutrophil count is high enough to start the next cycles. Palbo lowers the neutrophil count, i.e. immune status as well as haemoglobin and other factors, causing fatigue and possibility of infection while immunity is down. For me, my blood count has never been high enough to start a new cycle after the one week break so I have two weeks off and then a second blood test to check I can start again. So my cycle is a three weeks on/two weeks off cycle.
I'm very sure it will get onto the PBS. It's been used in the US since 2015 with great success. It was so successful that the first trial, which was a double blind study, had to be stopped because the ladies receiving Palbo were doing so much better than those receiving placebo that they couldn't in all conscience continue to allow those on placebo to lag behind so much.
I am Stage IV, by the way, so my cancer is incurable but it's highly hormone positive so is treatable. I'm told that, with this combination I should do well. So far my tumour marker has dropped by half, down to 500. I would like it to be lower but scans show my disease is stable - not progressing, which is reassuring.
My side effects are similar to sunandsaltwater's - mouth ulcers, cold sores, fatigue, especially during the last week of the cycle, Grade 4 neutropenia (low neutrophils) and I don't feel great a lot of the time but I do have about two weeks during the first two weeks of the cycle when I have noticeably more energy. Side effects are manageable and not too bad. I'm only mentioning them so that you're aware of them.
To anyone who has mouth/gum problems Gelclair is great. Fairly expensive but you can get two treatments out of one sachet. You stir it into a small amount of water and swish it in your mouth for a few minutes then don't eat or drink for 45 minutes to an hour. It helps a lot if your mouth is so sore eating becomes a problem.