The main purpose of this legislation, known as the Cancer Drug Parity Act of 2025, is to ensure that health insurance plans provide equal cost-sharing for oral anticancer drugs as they do for anticancer medications that are administered by healthcare providers. This aims to make treatment more affordable for patients who rely on oral medications to fight cancer. Key provisions of the law require that if a health plan covers anticancer medications given by a healthcare provider, it must also cover prescribed oral anticancer medications under the same financial terms.