How effective is immunotherapy?

Success rates for any cancer treatment, including immunotherapy, depend on individual factors, including the cancer type and stage. In general, immunotherapy is effective against many cancers. While some cancers are more immunogenic than others, in general, immunotherapy is effective across a wide variety of cancers. Immunotherapy can produce durable responses unlike chemotherapy or radiation, however, these occur only in around 25% patients.

Some research suggests that the immune system may remember cancer cells after immunotherapy ends.

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