Katie's first photodynamic
treatment doubled her period of remission from six months to a year.
The second treatment gave her a 3.5-year remission before the cancer
reappeared. And, her treatment in May 1999 has so far left her cancer-free.
There is no evidence of cancer at the sites that previously were found
to be cancerous.
Is Katie Cured?
There is definite
cause for optimism, but, as in all cancer treatments, Katie must be
cancer free for at least five years to be considered "cured."
While she lives for that anniversary, the new treatment procedure continues
to play a major role in beating back the cancer that threatened her
life so aggressively before.
A Partnership
for Life
The photodynamic
therapy that is helping Katie, and that has been used on more than 300
other patients since 1996, evolved from a partnership between Quantum
Devices and the Wisconsin Center for Space Automation and Robotics,
a NASA-sponsored Commercial Space Center. Currently, the NASA Marshall
Space Flight Center in Huntsville, Alabama, Small Business Innovation
Research program, is sponsoring this LED research program.
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The original goal of
the collaboration was to develop technology to foster plant growth in
closed environment systems during micro-gravity space-flight research.
The serendipitous result of this effort was an effective, life-saving
treatment against several kinds of cancer, including skin cancer, throat
cancer, brain cancer, breast cancer, lung cancer, and some gastro-intestinal
cancers.
Further
research promises other medical applications of this new light source
and LEDs. In fact, the Food and Drug Administration (FDA) has already
approved the LED unit and the photosensitive drug Photofrin (patented
by QuadraLogic Technologies) as a combined therapy. Other types of light
sensitive drugs are also in the FDA clinical trial stage.
More Medical Progress
From Space
Photodynamic therapy
is just one of the great stories coming from NASA's medical partnerships
and technological spin-offs. Consider the following advances in breast
tumor detection, as well as heart disease detection and treatment.
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