It is uncertain how many courses of targeted drugs for colon cancer in general, and it needs to be considered according to specific disease staging, treatment and patient’s condition.
Recurrence or metastasis of colon cancer can be treated with combined targeted therapy, and there is no exact clinical standard for how many courses need to be done; if the application of targeted drugs can make the tumor control better, the treatment may last for half a year or more than one year.
When the use of targeted drugs has reduced or no effect on cancer cells, we can also consider stopping the use of this targeted drug or adjusting other targeted drug treatment according to the pathological results.
In addition, the price of targeted drugs is relatively expensive, and the application of targeted drugs must be combined with the specific condition of the patient, so as to avoid excessive waste and increase the financial burden of the patient.
In the process of targeted therapy for colon cancer, it is necessary to have regular colonoscopy and CT of lungs and liver to prevent distant metastasis and recurrence; if there is any discomfort, go to the hospital in time for clear diagnosis and guidance of treatment. All drugs should be applied under the guidance of physicians.