The Ghost star lost his battle with the killer disease a year ago (14Sep09) and Niemi has taken it upon herself to school others about the illness as the new spokeswoman for the Pancreatic Cancer Action Network.
And she has marked Tuesday's poignant date by kick-starting the charity drive for Be a Hero in the Fight Against Pancreatic Cancer: Know it. Fight it. End it.
The campaign features videos and personal messages from Niemi and she is honoured to be part of the Action Network, reports People.com.
She says, "It's a merciless disease. If Patrick being sick can help someone else, it's the highest possible honour I could help him have."