The document discusses breast cancer vaccines that are currently in clinical trials. It notes that there are 35 breast cancer vaccines in clinical trials, with most (12) in Phase I. The highest phase reached is Phase III, occupied by two vaccines (NeuVax and OBI-822). The document outlines the global breast cancer vaccine market and pipeline. It explores factors driving development as well as challenges, and predicts that the first breast cancer vaccines may reach the market within the next 3-5 years.