Abstract
According to the World Health Organization, 12.6 million new cases of cancer were identified in 2008. In 2022, this number reached 18.1 million cases, and it is projected to increase to 26 million in 2040. Chronic pain is defined by the International Association for the Study of Pain as pain that persists or recurs for 3 months. A similar definition is given in the International Classification of Diseases, 11th revision, which for the first time includes chronic pain as an independent category with a unique code MG30. The incidence of pain syndrome in advanced terminal or metastatic stages of cancer is 64 %, during antitumor therapy – 59 %, after successful treatment – 33 %. However, side effects from opioids significantly worsen the quality of life of patients.A new type of peptide drugs can reduce the toxic effects of drug pain therapy.
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