Whether PD-L1 injection is still effective three months after stopping the drug after one injection, there is no clear conclusion, it is recommended that patients follow the doctor’s instructions to use the drug, whether to stop the drug needs to be a professional doctor combined with the actual situation of the patient.
PD-L1 injection generally refers to PD-L1 inhibitors, which is a class of immunotherapy drugs, not a specific drug, so it is even more difficult to determine whether it works after stopping the drug.
Generally speaking, the use of this type of drug is until the disease progresses or unacceptable toxicity will stop the drug, and there is no specific time to stop the drug, can only be different from person to person, so as to better bring the therapeutic effect to the patient.
Please follow your doctor’s instructions and do not self-medicate.