Ontruzant® (trastuzumab-dttb)
for Breast Cancer

Ontruzant (trastuzumab-dttb) is a biosimilar to Herceptin used to treat HER2-positive breast and stomach cancer, sometimes in combination with other treatments. It may be used when the cancer has spread to other parts of the body (metastatic). Ontruzant works by targeting and blocking HER2, a protein that promotes cancer cell growth, helping to slow or stop tumor progression.

Heart
Other top medicines used to treat Breast Cancer