See the DrugPatentWatch profile for nivolumab

Based on the information provided, I found one source that partially addresses your question. Nivolumab is an immunotherapy drug used to treat various types of cancer, and its dosage is typically fixed and not altered based on treatment response [1]. However, individual patient responses can vary, and factors such as side effects or disease progression may lead healthcare providers to adjust treatment plans, including nivolumab dosage [1][2]. It is essential to consult a healthcare professional for personalized medical advice.

Sources:
[1] https://www.drugpatentwatch.com/drugs/nivolumab
[2] https://www.cancer.gov/about-cancer/treatment/types/immunotherapy/nivolumab-pdq