Triple negative breast cancer

Hi everyone. I am new to the group. I got a TNBC diagnosis just before christmas aged 52. Have had 4 rounds of EC. MRI just before round 4 showed only minimal shrinkage. More pain in lump since round 4 too. Moving on to weekly pacitaxal and carboplatin this week. Would love to hear from anyone who had a poor response at first and had a good outcome in the end. Love to everyone.