Mitotane usually requires several courses of treatment

Mitotane (Mitotane)'s treatment for adrenal cancer is different from traditional chemotherapy drugs. It is not used according to a strict "course" concept, but is a drug that requires long-term use and continuous monitoring. The core principle is to gradually adjust the dose to maintain the mitotane concentration in the blood within an ideal range, thereby achieving a balance that can inhibit tumors while controlling side effects. Under normal circumstances, doctors will gradually start with a lower dose and take it orally in batches based on the patient's tolerance and clinical response, and monitor the blood concentration during treatment. The ideal treatment goal is to achieve plasma concentrations within the effective range to ensure sustained drug effects.

Because mitotane is metabolized slowly in the body, it takes a certain amount of time for the drug to reach a stable state. Therefore, patients often need to take it for a long time, and the treatment cycle can last for months or even years. Unlike chemotherapy, which is a course of several weeks, mitotane is more of a chronic management medication that requires continuous medication to control the condition. In actual clinical practice, some patients may take mitotane as adjuvant therapy after surgery to reduce the risk of recurrence; some patients may take mitotane for a long time in advanced or inoperable cases to maintain stable disease.

It should be noted that long-term use of mitotane must be done under the guidance of a doctor, because the drug may cause side effects such as gastrointestinal discomfort, nervous system reactions, or adrenal gland function suppression. Some patients also require additional glucocorticoid supplements to maintain normal body functions. Therefore, the "treatment course" of mitotane is not fixed, but an individualized and dynamic adjustment process. It can be said that treatment with mitotane is more like "long-term maintenance management" than short-term chemotherapy. For patients, insisting on regular medication and regular monitoring are the keys to ensuring efficacy and safety.

Reference materials:https://go.drugbank.com/drugs/DB00648