Insulin potentiation therapy combines insulin with chemotherapy with a goal of enhancing treatment effects.
Safety and precautions
Interactions with cancer treatments
In preclinicaltesting a drug, a procedure, or another medical treatment in isolated cells or in animals; preclinical evidence is considered only an initial indication of possible effects in people studies, insulin potentiation therapy has greatly increased the toxicity of methotrexate, a standard treatment for several types of cancer. Insulin treatment increases cellular uptake of methotrexate—a proposed mechanism of benefit—only “to a minor extent over a short period of time, and insulin-treated cells have the same steady-state methotrexate uptake as untreated cells.” But the “differences in cellular uptake do not explain an approximate 10,000-times increase in methotrexate cytotoxicity in MCF-7 cells exposed to insulin.”1Sissung TM, Schmidt KT, Figg WD. Insulin potentiation therapy for cancer? Lancet Oncology. 2019 Feb;20(2):191-192.
Side effects or adverse events
Insulin can cause low blood sugar (hypoglycemia), which may require medical treatment.2Lasalvia-Prisco E, Cucchi S et al. Insulin-induced enhancement of antitumoral response to methotrexate in breast cancer patients. Cancer Chemotherapy and Pharmacology. 2004 Mar;53(3):220-4.
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References