Tisotumab vedotin (also known as SGN-CD19A) is a monoclonal antibody-drug conjugate (ADC) used to treat advanced cervical cancer that has returned or that has spread to other parts of the body. This drug is a combination of an antibody that binds to a protein called CD19, which is found on the surface of certain cancer cells, and a chemotherapy drug called monomethyl auristatin E (MMAE). Together, these two components help to target and destroy cancer cells. Tisotumab vedotin is administered intravenously in combination with a platinum-containing chemotherapy.
Tisotumab vedotin, sold under the brand name Tivdak, is a medication specifically designed to target recurrent or metastatic cervical cancer. Here's a closer look at its properties and function:
Type of Drug: Tisotumab vedotin is classified as an antibody-drug conjugate (ADC) [1, 2].
How it Works: ADCs combine two powerful elements:
- Monoclonal Antibody: This acts like a smart missile, specifically targeting a protein called tissue factor (TF) often found on the surface of cervical cancer cells [1, 2].
- Cytotoxic Agent: Once attached to the cancer cell, the ADC releases monomethyl auristatin E (MMAE), a potent cell-killing agent that disrupts cell division and triggers cancer cell death [1, 2].
Medical Use: Tisotumab vedotin is approved for the treatment of adults with recurrent or metastatic cervical cancer that has progressed after prior chemotherapy [3].
Administration: It's administered intravenously (IV) as a slow infusion over 30 minutes, typically every 3 weeks [3].
Advantages:
- This targeted therapy offers a potential benefit compared to traditional chemotherapy by specifically targeting cancer cells while minimizing harm to healthy cells [2].
Important Considerations:
- Tisotumab vedotin is a relatively new medication, and long-term effects are still being studied [2].
- It can cause side effects, including fatigue, nausea, vomiting, diarrhea, neuropathy (tingling or numbness), eye problems, and low blood cell counts [3].
- It's not suitable for everyone, and pregnant or breastfeeding women should not take it [3].