Dr. David Gray’s cancer was hiding in plain sight. When a pea-sized tumour on his cheek turned out to be Stage 3c melanoma, with a high risk of spreading, he decided to join a clinical trial that compared two immunotherapy drugs.

One morning in 2001, Heather Harris’ right foot went numb and then the numbness spread up her entire right side. This first multiple sclerosis attack led to her taking part in a clinical trial at The Ottawa Hospital that virtually eliminated her disease, yet she was still able to give birth to a healthy baby girl.