Showing posts with label PSA. Show all posts
Showing posts with label PSA. Show all posts

Jan 24, 2012

Clinical Trials can sometimes have unexpected benefits


As the co-author who has cancer and has participated in clinical trials, I tend to see the patient/participant side of clinical trials more than the medical side. I have participated in three clinical trials and my life has changed in ways not built into the study plan.

I’ll explain. My first trial, more than 15 years ago, was a prostate cancer prevention study. It was a double blind placebo study—half the men got an experimental medicine and half got a pill that was neutral (sugar pill). Nobody knew who got which pill—not the participants, doctors, or nurses. It turns out I took a placebo for several years. My PSA (a potential marker of prostate cancer) was in the normal range throughout the study.

At the end of the study I was offered a free prostate biopsy and agreed to have it. A prostate biopsy takes tissue samples from your prostate by injecting hollow needles through your colon and into your prostate. I never said it was fun. The bottom line was: even though my PSA was normal, the biopsy found a rather large and fast growing tumor. I started treatment shortly thereafter. Without the biopsy it may have been a few years before I was diagnosed, and possibly at a much later and more dangerous stage.

In a second clinical trial, everybody took the experimental drug and it didn’t seem to work for anybody. No harm—no foul.

My third trial was a six month strength building program for men with prostate cancer and their spouses—10 couples in our group.