My father was diagnosed with relatively aggressive prostate cancer (Gleason 8, I believe) about 5 years ago, and underwent radiation, which temporarily worked.
About a year ago, the cancer came back, and had spread to a lymph node.
A month ago he was seemingly fine. His PSA was low and staging scans showed the tumor-shrinking.
His children (my brother and I) were mostly out of the loop at this point, however, he suddenly became very ill a few weeks ago. He thought he had injured his back, but it was not getting better and a doctor's appointment and subsequent imaging revealed a spot on his liver.
Eventually, due to shallow breathing from the pain, he developed, we think, pneumonia and ended up in the hospital.
His radiologist had been referred the images showing a spot on his lung, but had failed to review them, so only at this point do they take a biopsy.
In addition to the spot on his lung, they found a mass blocking his urethra on one side, and they put in a stent.
A couple of days later he was allowed to go home. At this point, he seemed suddenly aged, and weak, but not grave.
The next day, this morning, he nearly died. He collapsed and became unresponsive. He appeared to be going into shock, as his BP was quite low. He is currently stabilized at the hospital, in and out of sleep, and receiving four antibiotics for sepsis.
However, the biopsy results came back showing not adenocarcinoma of the prostate, but small cell cancer instead. In addition, the lymph nodes by his kidney are affected.
We are not sure what percentage, if any, remains adenocarcinoma. We are also not sure if his weakness, fatigue, lack of appetite are caused by pneumonia, or if in fact is the cancer, and as such he may be very close to the end. At this point, they are taking cultures and excluding things.
His radiologist, after breaking the news, referred him to another doctor for the chemo phase. She mentioned the standard chemo protocol followed by immunological treatments.
I've seen case studies of good responses. Ive also seen the 1,2,5 year survival of men diagnosed 1973 to 2003 was 48,28,13%.
While I realize there are few studies on this rare type of PC, I wonder if it is likely those numbers have improved. What might they be now?
As I mentioned, Ive seen good case studies for immunotherapy. What are the odds that he responds at all?
Lastly, are there any other trials I should be monitoring?