Which approach is not a characteristic of cytostatic therapy?

Cytostatic therapy primarily aims to inhibit the growth and reproduction of cancer cells rather than killing them outright. This approach slows down or stops cell division, making it less toxic to the body compared to agents that kill rapidly dividing cells indiscriminately. The focus is on preventing the proliferation of cancer cells, which aligns with the core characteristic of cytostatic agents.

The other aspects of cytostatic therapy include targeting specific cellular processes that are essential for cancer cell growth and division, thus interrupting the cancer's life cycle. Stimulation of the immune system is not a component of cytostatic therapy; rather, it is more aligned with immunotherapy techniques which activate the body’s immune response to fight the cancer directly. Therefore, the assertion that killing rapidly dividing cells is a characteristic of cytostatic therapy does not align with its fundamental purpose, which is centered around growth inhibition rather than direct cytotoxicity.