Skip to content
My WebMD Sign In, Sign Up

Cancer Health Center

Font Size

Essiac/Flor Essence (PDQ®): Complementary and alternative medicine - Health Professional Information [NCI] - Summary of the Evidence for Essiac and Flor Essence

To assist readers in evaluating the results of human/clinical studies of complementary and alternative medicine (CAM) treatments for cancer, a scoring system has been devised that allows studies of individual treatments to be ranked according to the strength of their evidence (i.e., their level of evidence). Not all studies, however, are given a level of evidence score. To be eligible, a study must:

  • Evaluate a therapeutic outcome or outcomes, such as tumor response, improvement in survival, or carefully measured improvement in quality of life.
  • Be reported in a peer-reviewed scientific journal.
  • Have its clinical findings published in sufficient detail that a meaningful evaluation can be made.

Evidence from studies that do not meet these requirements is considered extremely weak. In addition to scoring individual studies, an overall level of evidence assessment is usually made.

Recommended Related to Cancer

To Learn More About Chronic Lymphocytic Leukemia

For more information from the National Cancer Institute about chronic lymphocytic leukemia, see the following: Leukemia Home Page What You Need to Know About™ Leukemia Drugs Approved for Chronic Lymphocytic Leukemia Targeted Cancer Therapies Understanding Cancer Series: Targeted Therapies Biological Therapies for Cancer: Questions and Answers For general cancer information and other resources from the National Cancer Institute, see the following: What You Need ...

Read the To Learn More About Chronic Lymphocytic Leukemia article > >

Because no study of the use of Essiac or Flor Essence in humans has been reported in a peer-reviewed scientific journal, no level of evidence analysis is possible for these mixtures. The data that are available, however, do not support claims that Essiac and Flor Essence can detoxify the body, strengthen the immune system, or fight cancer. At this time, evidence does not support the use of either Essiac or Flor Essence in the treatment of cancer patients outside the context of well-designed clinical trials.

Separate levels of evidence scores are assigned to qualifying human studies on the basis of statistical strength of the study design and scientific strength of the treatment outcomes (i.e., endpoints) measured. The resulting two scores are then combined to produce an overall score. For additional information about levels of evidence analysis, refer to Levels of Evidence for Human Studies of Cancer Complementary and Alternative Medicine.

1

WebMD Public Information from the National Cancer Institute

Last Updated: February 25, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
Next Article:

Today on WebMD

Building a Support System
Blog
cancer fighting foods
SLIDESHOW
 
precancerous lesions slideshow
SLIDESHOW
quit smoking tips
SLIDESHOW
 
Jennifer Goodman Linn self-portrait
Blog
what is your cancer risk
HEALTH CHECK
 
colorectal cancer treatment advances
Video
breast cancer overview slideshow
SLIDESHOW
 
prostate cancer overview
SLIDESHOW
lung cancer overview slideshow
SLIDESHOW
 
ovarian cancer overview slideshow
SLIDESHOW
Actor Michael Douglas
Article