The major problems with existing cancer therapies are due to resistance and recurrence.
Problem #1 - Tumors become resistant to treatment. Most ovarian cancer patients (~ 80%) become resistant to standard of care.
Problem #2 - Tumors have various mechanisms to evade the immune system. Tumor cells can hide by changing their cell surface to become invisible to immunotherapies.
Problem #3 - Metastatic disease and minimum residual disease that are not treated during standard therapy due to resistance or immune evasion, can lead to recurrence.
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