Prostate Cancer Clinical Trials

Dr. Charles Myers frames our May conversations about prostate cancer clinical trials:

Over the past ten years, the management of prostate cancer has been revolutionized by the appearance of new drugs and new concepts using established drugs as well as surgery and radiation. Every one of these advances only exists because of clinical trials. This is the only path forward. This month, we discuss many of the issues patients face when they consider entering a clinical trial.

The fact that most large clinical trials include a randomization to a control arm is often a major source of patient concern, especially if the control arm uses a placebo. When the control arm involves an active treatment, that treatment will typically represent current state-of-art care that you might receive if you do not enter a clinical trial. However, the cost to you will be less because the clinical trial sponsor will commonly cover the cost of care. The financial benefit to you could easily reach thousands of dollars.

What if the trial includes a placebo arm? First, the existence of a placebo arm commonly indicates that no existing treatment has proven to be of benefit. As a patient, you should do your due diligence on this point. Second, there are strict rules in place to protect patients on the placebo arm. You should know these rules and make sure you are comfortable with them.

Patients on a trial’s placebo arm commonly do better than similar untreated patients not on a clinical trial. There is actually a large literature on why the Placebo Effect exists.

One explanation offered is that patients on the placebo typically get better standard care, and I think this is a major factor. It may also be that patients on placebo do better for psychological reasons or a mind-body effect. The latter might be particularly relevant for the treatment of nausea, pain, anxiety, or depression.

Finally, many patients enter clinical trials for altruistic reasons. By entering a well-designed clinical trial, you will help answer questions that will benefit future patients. The progress we have made over the past decade only happened because patients who came before you chose to enter clinical trials.

Not a member? Join us to read our May issue on clinical trials.

 

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