The TNBC market will experience rapid growth over the next 10 years across the US, Japan and five major European markets. The primary drivers for this growth will be the approval and subsequent uptake of new targeted therapies and immunotherapies. The market for TNBC is also becoming increasingly segmented by biomarker status, creating fierce competition among both approved and pipeline therapies for small patient populations. 

There will likely be reimbursement issues as payers may initially hesitate to reimburse new treatments based on novel biomarkers. Additionally, payers may be unwilling to reimburse expensive therapies with only incremental improvements in patient outcomes.