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Alternative Cancer Therapies Go Mainstream


WebMD Feature
Reviewed by Gary D. Vogin, MD

Despite decades of searching, scientists are still struggling to find a cure for cancer. And though some conventional treatments can slow the spread of the disease, many are highly toxic and have harsh side effects. So it's no surprise that six of 10 people with the disease try some form of alternative (also called complementary) therapy, according to a survey by scientists at the National Institutes of Health (NIH) which was published in the May 2000 issue of the journal Oncology Nursing Forum. Partly because so many patients are turning to alternative approaches, mainstream researchers are beginning to put these unproven therapies to the test in carefully controlled studies. Here are some of the most popular.

PC-SPES

What it is: A mixture of eight Chinese herbs purported to treat prostate cancer.

Summary: The "natural" mixture was shown to be contaminated with synthetic drugs.

The evidence: In the Sept. 4, 2002, issue of the Journal of the National Cancer Institute, researchers analyzed eight lots of PC-SPES produced between 1996-2001. All lots contained various concentrations of the drugs Coumadin, Indocin, and DES. Coumadin is a blood thinner, and Indocin and DES have shown cancer-fighting properties.

Side effects and cautions: In a study reported in The New England Journal of Medicine on September 17, 1998, all men who tried PC-SPES experienced some breast tenderness and loss of libido. The synthetic drugs in PC-SPES could interfere with other drugs being taken.

Mind-Body Techniques

What they are: Support groups, relaxation therapies, visual imagery, stress reduction techniques, and other approaches used to help patients relax and focus their minds on easing the symptoms of cancer and chemotherapies. Some researchers believe these techniques can even help patients fight the disease.

Summary: There's strong evidence that mind-body techniques ease symptoms, and preliminary evidence that they can also increase survival time.

The evidence: In a landmark study published in the Oct. 14, 1989, issue of The Lancet, Stanford University psychiatrist David Spiegel, MD, found that women with breast cancer who took part in weekly support groups in addition to their regular treatments lived twice as long, on average, as women who received only conventional therapy. In a follow-up trial, reported in 1999 in the journal Psycho-oncology, Spiegel studied 111 patients with breast cancer. Patients taking part in support groups experienced a 40% decrease in their scores on a scale that measures degree of mood disturbance and a similar drop on a scale that measures anxiety and depression in hospital patients. A wide variety of mind-body techniques are currently being tested at the NIH and at research centers around the country.

Side effects and cautions: The only worry is that some patients may choose mind-body techniques as a substitute for conventional therapy, rather than opting for both. The real benefits of these techniques, most researchers agree, are seen when they are used as a complement to more mainstream treatment.

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