This phase I/II trial studies the best dose and how well talimogene laherparepvec works with paclitaxel, doxorubicin hydrochloride, and cyclophosphamide in treating patients with triple negative breast cancer before surgery. Drugs used in immunotherapy, such as talimogene laherparepvec, may stimulate the body's immune system to fight tumor cells. Drugs used in chemotherapy, such as paclitaxel, doxorubicin hydrochloride, and cyclophosphamide, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving talimogene laherparepvec and combination before surgery may make the tumor smaller and reduce the amount of normal tissue that needs to be removed.
Study sponsor and potential other locations can be found on ClinicalTrials.gov for NCT02779855.
PRIMARY OBJECTIVES:
I. Determine the maximum tolerated dose (MTD)/recommended phase 2 dose (RP2D) of talimogene laherparepvec administered with neoadjuvant paclitaxel-doxorubicin hydrochloride (doxorubicin)/cyclophosphamide chemotherapy, safety/toxicity of the combination. (Phase 1)
II. Determine the efficacy (evaluated as pathologic complete response rates) of neoadjuvant talimogene laherparepvec in conjunction with neoadjuvant chemotherapy for early/locally advanced triple negative invasive breast cancer. (Phase 2)
SECONDARY OBJECTIVE:
I. 5 year recurrence free survival/overall survival, immune activation correlatives by immunohistochemistry (IHC) and T cell receptor sequencing.
OUTLINE: This is a phase I, dose-escalation study of talimogene laherparepvec followed by a phase II trial.
Patients receive talimogene laherparepvec intratumorally (IT) on weeks 1, 4, 6, 8 and 10. Patients also receive paclitaxel intravenously (IV) weekly for 12 weeks, doxorubicin hydrochloride IV and cyclophosphamide IV every 2 weeks for 8 weeks. Treatment continues in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up at 30 days and then every 6 months for up to 5 years.
Lead OrganizationMoffitt Cancer Center
Principal InvestigatorHatem H. Soliman