One thing I didn't cover is that "cancer" isn't one thing.
And neither is pancreatic cancer.
Steve Jobs had a rarer and less aggressive form.
That's why he lived with his diagnosis as long as he did.
His pancreatic cancer was a different pancreatic cancer from the most common pancreatic cancer.
The median survival rate for pancreatic cancer is low because it tends to be diagnosed late.
This is the case with your friend because the cancer is at stage four.
In terms of quality of life, seeking enrollment in a clinical trial involves a lot of meetings and paperwork and often travel.
Keep in mind that the driving force of the clinical trial you link is a business venture with a medical component.
The trial is randomized which means some enrollees won't get the treatment being tested.
In terms of anecdotal evidence of long survival, misdiagnosis is a real possibility as one goes further and further back, e.g. a person diagnosed in 1955 who lived to 1985.
I'm not sure why the patient can't make their own decisions, but I don't have all the facts.
I am sorry that you are dealing with this.