The mechanism of the new method Cancer Therapy exhibits combination Prolonged medical starvation 42 - 45 days with considerably decreased dosage of cytotoxic drugs which was described in detail in the article: Ponizovskiy M.R., The detailed description mechanisms of the herbs extracts operations in the new method cancer disease treatment via rearrangement of metabolism from pathologic development into normal development, Journal of Clinical Trials, 2012, v. 2, Issue 4, doi:10.4172/2167-0870.1000124. The mechanism of this method of cancer therapy operates via Warburg effect targeting. The purpose of this work is substantiation the supplementary mechanisms of efficient Cancer Therapy via combination “Prolonged medical starvation” with considerably decreased dosage of cytotoxic drugs and also substantiation advantage of this method of cancer therapy in comparison with cancer treatment with great dosage of cytotoxic drugs. There were described the biochemical and biophysical mechanisms of formations resistance to some cytotoxic drugs and recurrence cancer disease after modern methods chemotherapy with large dosage cytotoxic drugs after some disease remission. Also it was described the benefits of use the method “Prolonged medical starvation” with decreased dosage of cytotoxic drugs for cancer treatment. It was substantiated the mechanism operation of this method cancer treatment, which leads to suppression cancer metabolism of Warburg Effect and create depression of cancer disease metabolism without resistance to decreased dosage of anticancer cytotoxic drugs in comparison with intensive anticancer chemotherapy with great dosages of cytotoxic drugs which violate immune and hormonal defensive systems of an organism. The offered method Cancer Therapy should be made by Clinical Trial for introduced into official practical medicine.