Science-based medicine depends upon human experimentation. Scientists can do the most fantastic translational research in the world, starting with elegant hypotheses, tested through in vitro and biochemical experiments, after which they are tested in animals. They can understand disease mechanisms to the individual amino acid level in a protein or nucleotide in a DNA molecule. However, without human testing, they will never know if the end results of all that elegant science will actually do what it is intended to do and to make real human patients better. They will never know if the fruits of all that labor will actually cure disease. However, it is in human experimentation where the ethics of science most tend to clash with the mechanisms of science. We refer to “science-based medicine” (SBM) as “based” in science, but not science, largely because medicine can never be pure science. Science has resulted in amazing medical advances over the last century, but if there is one thing that we have learned it’s that, because clinical trials involve living, breathing, fellow human beings, what is the most scientifically rigorous trial design might not be the most ethical.
About a week ago, the AP reported that experiments and clinical trials that resemble the infamous Tuskegee syphilis study and the less well known, but recently revealed Guatemala syphilis experiment were far more common than we might like to admit. As I sat through talks about clinical trial results at the Society of Surgical Oncology meeting in San Antonio over the weekend, the revelations of the last week reminded me that the intersection between science and ethics in medicine can frequently be a very tough question indeed. In fact, in many of the discussions, questions of what could or could not be done based on ethics were frequently mentioned, such as whether it is ethically acceptable or possible to do certain followup trials to famous breast cancer clinical trials. Unfortunately, it was not so long ago that such questions were answered in ways that bring shame on the medical profession.
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