Overview

• Campbell was first diagnosed with Hodgkin’s lymphoma in 2013 and underwent chemotherapy, immunotherapy including a pembrolizumab trial, and a self-stem cell transplant that proved unsuccessful
• His initial bone marrow donor withdrew 10 days before surgery, but doctors secured a second match in December 2024
• He was admitted on New Year’s Eve for intensive chemotherapy and the donor transplant that cleared his cancer cells
• Campbell missed Def Leppard’s opening 2025 concert during recovery but returned to the stage with the band in May
• He intends to meet his anonymous 21-year-old donor and thank him personally with a beer or two