How long does it take for Pembrolizumab to take effect?

In some studies, the therapeutic effects of pembrolizumab usually began to appear after 2 to 3 courses of treatment, and treatment effects varied depending on individual differences and the type of cancer. In general, pembrolizumab treatment is usually administered continuously, with dosing every two to three weeks. The effects of medications take time to develop, so significant therapeutic effects are often not immediately visible within the first few courses of treatment. Some patients may see the effects of treatment in a shorter period of time, while others may take longer to see significant improvement. Therefore, it is very important for patients to work closely with their doctors, follow their doctor's orders, and promptly report any symptoms or changes to their doctors.