Ipilimumab, Nivolumab, and Talimogene Laherparepvec Before Surgery in Treating Participants With Localized, Triple-Negative or Estrogen Receptor Positive, HER2 Negative Breast Cancer-deleted

This phase I trial studies talimogene laherparepvec given together with ipilimumab and nivolumab before surgery in patients with triple-negative or estrogen receptor positive, HER2 negative localized breast cancer. Ipilimumab and Nivolumab are immune checkpoint inhibitors that enhance immune response towards cancer cells. Talimogene laherparepvec is a modifies human herpes virus 1 that is an oncolytic virus targeting cancer cells and makes tumor microenvironment more immunogenic to promote immune response against cancer. This study will assess the safety and efficacy of talimogene laherparepvec, ipilimumab, and nivolumab, and provide an insight for further improvement of immunotherapy in breast cancer.