Insulin potentiation therapy
Insulin potentiation therapy is an unproven alternative cancer treatment using insulin as an adjunct to low-dose chemotherapy. It was promoted by a paper in the controversial and non-peer reviewed journal Medical Hypotheses. It is not an evidence-based cancer treatment, and the costs of IPT are not covered by health insurance.
According to Quackwatch, "Insulin Potentiation Therapy is one of several unproven, dangerous treatments that is promoted by a small group of practitioners without trustworthy evidence that it works."
History
It was developed by Donato Perez Garcia, MD in 1930. Originally, Garcia targeted syphilis, and later tried the treatment for chronic degenerative diseases and some types of cancer.Method
Generally, a dose of insulin is injected into a vein, followed by a much lower dose of a chemotherapy drug. Then sugar water is injected to stop the hypoglycemia caused by the insulin injection.Efficacy
IPT has not been proven to work. Lab research indicates that there is not even a theoretical possibility of it being an effective treatment for most cancers. Research over the decades has proved that most cancers grow when exposed to more insulin.One study of men with prostate cancer showed that survival was significantly shorter. A second small trial showed that women with metastatic breast cancer were less likely to see short-term disease progression if they received IPT with low-dose methotrexate than if they received either insulin alone or low-dose methotrexate alone.
Adverse effects
The immediate risk is hypoglycemia. The main risk is that the person will die from cancer because IPT does not work.The use of lower than normal doses of chemotherapy can cause drug resistance, which could make future treatment at standard, proven doses ineffective. For some cancers, especially breast and colon cancers, insulin may promote tumor growth.