Ivermectin in Combination With Balstilimab or Pembrolizumab in Patients With Metastatic Triple Negative Breast Cancer

Patients receive ivermectin orally (PO) once daily (QD) on days 1-3, 8-10, and 15-17. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients also receive balstilimab or pembrolizumab intravenously (IV) over 30 minutes on day 1. Treatment repeats every 21 days for up to 35 cycles in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up for 90 days and then periodically thereafter.