Pembrolizumab patent. Review clinical trial results comparing KEYTRUDA® (pembrolizumab) to another immunotherapy in people with advanced melanoma. Learn about the side effects that may occur while taking KEYTRUDA® (pembrolizumab). Learn about available treatment options. Find answers to frequently asked questions about KEYTRUDA® (pembrolizumab) including how does KEYTRUDA work, PD-L1 testing information, and more. Learn about KEYTRUDA QLEX™ (pembrolizumab and berahyaluronidase alfa-pmph), an immunotherapy treatment. Watch 2 videos about immunotherapy and how it works in the body. 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 KEYTRUDA® (pembrolizumab), an immunotherapy that works with your immune system to help fight certain cancers. Visit the patient website. See more at keytruda. Learn about KEYTRUDA® (pembrolizumab), an immunotherapy that works with your immune system to help fight certain cancers. com. . Download guides and brochures available in English and Spanish. Review serious side effects and common side effects with KEYTRUDA. View results from a clinical trial with KEYTRUDA® (pembrolizumab) used as part of a combination treatment with enfortumab vedotin. Learn about cost information, insurance, and potential financial assistance options with KEYTRUDA® (pembrolizumab). Learn how KEYTRUDA® (pembrolizumab) works with your immune system to help fight cancer cells. Learn about a potential first treatment option for 3 out of 4 patients with advanced non–small cell lung cancer (NSCLC). Talk to your doctor to find out more. See how long treatment administration with KEYTRUDA® (pembrolizumab) may take, explore your options for receiving it, and learn what to expect during the process. Explore resources for caregivers and patients designed to provide support during treatment with KEYTRUDA® (pembrolizumab).