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How we got there … When I first started as a cancer researcher at one of the best cancer centers in the country, I needed to find my own project without knowing anything about cancer. I went to cancer literature looking for an unsolved problem in cancer. I found one related to radiation therapy and started working on it. This required a new compound that had to be non-toxic to be useful. While testing the toxicity of cells, a technician told me to keep the cell out of light or the cells would die. This was a Eureka moment – has anyone tried to use this way to treat cancer in patients? The answer was no. Thus, our new treatment described in this book – Photodynamic Therapy – now began an approved way to treat certain cancers without many of the side effects of today's treatment. This book describes the ups and downs of the 20-year route to FDA approval as those beginning with no knowledge of cancer or how the FDA is intimately involved in the clinical aspects of a new treatment.
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