Radiation Fatigue and the Use of A Nutritional Supplement

Edward H.Gilbert, M.D., Denise Lindley R.N.,BSN,OCN, Michelle Karlin, RN, AOCNP,FNP-BC Northpoint Cancer Center, Dallas Texas and Verity Cancer Center, Plano Texas

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Radiation Induced Fatigue and a Nutritional Supplement Named Reliv

Radiation induced fatigue is a specific syndrome. It is much more defined than “cancer related fatigue.” It is usually not multifactorial, and typically arises within 1-5 weeks after the beginning of radiation treatments. There is usually resolution in the 3-4 weeks post treatment. Radiation fatigue is less intense than chemotherapy caused fatigue.

The nutritional supplement trial with Reliv was based on a number of anecdotal stories of remarkable reversals in various symptoms, and in disease processes such as arthritis, diabetes, fibromyalgia, etc. These responses included reduced pain, increased energy, and feelings of wellbeing. This trial had some degree of simplicity. The fatigue symptom was limited in etiological causes, since the criteria for trial entry was fatigue presenting after the start of radiation treatment. The response was to measure the change in a short period of 1-4 weeks on the product. Patients were at different stages in their radiation treatment. Many would be finishing, and in the 2-4 weeks after completion fatigue normally improves on its own.

It was appreciated that this was essentially a “feasibility study,” and its scientific accuracy would need to be documented in a controlled trial. Yet, if any responses were seen, then this would validate doing a next phase. The placebo effect itself was recognized as a limitation. Also, a major issue was compliance in taking the powder twice a day, and thereby giving credibility to any non-responders. This was not adequately measured, so that in the 9 patients who had no response, lack of compliance was possible. However, the majority were seemingly honest in their reporting.

Material and Methods:

The product used was Reliv Classic and for half of the study, Innergize was added to the Classic Reliv. Availability of the product determined whether Innergize was added. The dose was 1 scoop twice a day in liquid (it should be noted that a minimum of 2 scoops twice a day is a more standard recommendation). The lower dose was decided upon to help compliance. There was enough product available for a 4 weeks trial for each patient.

The assessment tool was “The Fatigue Severity Scale.” It may not be totally appropriate for radiation caused fatigue, but it was at least a rough validation of response. Absolute scores were less important than relative change of the score over time. Compliance of returning the questionnaire was very varied, but all had at least 2 responses. The attempt was for 1 response a week. Further, patients were interviewed as to how they perceived their responses to be. For this study, credibility was given to the patient subjective reporting.

Patient selection was their declaration of significant fatigue, starting after the onset of radiation treatment. There was no restriction on when the fatigue began and when they started on the Reliv.

It should be noted that there were no other variables introduced to the patients. The fatigue began, and rather than giving any further interventions, the Reliv was started. Further, the acute results are what are being reported. Still, as noted in the individual reports, there were some patients with longer lasting effects, with these patients willing to continue the supplement on their own.

Excellent response was a combination of significant change in the “Fatigue Severity Scale” and their self reporting of a major improvement. A good response was from a +8 to +15 change and also the self report of good improvement. No response could be their stopping the product (one because of vomiting), compliance problems, and most frequently the report of no response and no score improvement.

Reliv contains a variety of vitamins, minerals and herbs in a powder base excellent for absorption. It is an easy product to prescribe, with dosing fairly standard. Further, there has been much experience with some studies and many testimonials for a positive result with Reliv. We personally were encouraged by these reports of significant improvement with a range of symptoms from other diseases. Testing a nutritional supplement for relief from fatigue was the motivation for this study. Further, few nutritional products have been formally recommended by the scientific experts in oncology.

The result was a certainly positive response. Approximately 75% of the patients with radiation fatigue had relatively immediate results, many within 2 weeks of starting the product. Roughly 25% of the cohort reported excellent results in reversal of radiation fatigue, and improvement or relief from other symptoms. There was no harm done to those who reported no response (except one with a few episodes of vomiting). The results warrant a more extensive trial with all the scientific rigors applied.

Reliv is distributed through a multilevel sales channel. Some clinicians and administrators have high resistance and negative preconceptions of products distributed via multilevel marketing. It is crucial to point out that all product in this study was provided free of charge and no attempt was made to enlist patients in further purchase or marketing the product. A few members of the cohort did buy additional product after the initial response but none were asked to participate in distribution.

Cancer related symptoms often are the most significant issue in quality of life. Treatments such as radiation can be highly symptom producing, with fatigue perhaps the most generic problem. Having the possibility to reverse this problem during the course of radiation is a significant benefit helping both the patient, their family, and the healthcare professionals managing their treatments.

Summary:

A feasibility study on 37 patients undergoing or just having completed radiation and having significant radiation fatigue was conducted. The patients were placed on a nutritional supplement program named Reliv, and measured for response over 2-4 week continuous treatment. Results show that 75% of participants considered their result as helping their fatigue, and 25% of the entire group reported an “excellent” response. The feasibility study’s result warrants a second phase clinical study conducted under rigorous scientific methodology, and should be considered for the syndrome of “cancer related fatigue.”

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