Learn about KEYTRUDA® (pembrolizumab), an immunotherapy that works with your immune system to help fight certain cancers. Visit the patient website.

See how long treatment administration with KEYTRUDA® (pembrolizumab) may take, explore your options for receiving it, and learn what to expect during the process.

Learn how KEYTRUDA® (pembrolizumab) works with your immune system to help fight cancer cells. Watch two videos about immunotherapy and how it works in the body.

Learn about the side effects that may occur while taking KEYTRUDA® (pembrolizumab). Review serious side effects and common side effects with KEYTRUDA.

Find answers to frequently asked questions about KEYTRUDA® (pembrolizumab) including how does KEYTRUDA work, PD-L1 testing information, and more.

Learn about cost information, insurance, and potential financial assistance options with KEYTRUDA® (pembrolizumab). See more at keytruda.com.

View tips and resources that may help while receiving KEYTRUDA® (pembrolizumab) including what to expect with your first infusion appointment and what to know about your treatment schedule.

Learn about an FDA-approved immunotherapy combination treatment for both high-risk early-stage and advanced triple-negative breast cancer (TNBC).

Learn about KEYTRUDA QLEX™ (pembrolizumab and berahyaluronidase alfa-pmph), an immunotherapy treatment. Talk to your doctor to find out more.

Learn about treatment options that may help certain patients with advanced urothelial bladder cancer. Download our brochure for one treatment option containing tips that may help manage side effects …