Abstract explanation by Rik J. Deitsch on the Results Presented on Cleveland Clinic Trial on BiosLife2®

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Fiber-Multivitamin Blend:
An Over-the-Counter LDL-Lowering Product
Dennis L. Sprecher MD,1 Gregory L. Pearce,1 Anita M.Boddie RD, PhD,2 Nader
Fotouhi, PhD,2 Vicki Horiatis RN1

1
2
The Cleveland Clinic Foundation, Cleveland, Ohio
Rexall Sundown, Inc., Boca Raton, Florida
Background:
Patients (n=119) were randomized to either a fiber-blend treatment or placebo with
99 participants (50 treatment, 49 placebo) completing the study. Fasting lipid profiles
(including ApoB) and homocysteine concentrations were obtained at weeks 4 and 8.
Between group (Wilcoxon rank-sums test) and within group (paired t-tests) comparisons
were used to evaluate treatment effect.
A commonly used 90% soluble, fiber-blend product (Bios Life 2®) has not been
evaluated for lipid altering effect. Few data are available to describe the influence of
fiber on serum ApoB levels. Further, as a fiber-vitamin combination agent, the potential
claim of folate/B6 benefit in the setting of fiber intake has not been examined.
Methods:
Results:
Subjects in both groups showed similar baseline LDL levels (159mg/dl vs. 158mg/dl).
The treatment group showed a 7.9% +/- 11.0 reduction (p<0.001) over 8 weeks.
Placebo patients showed a slight increase in LDL over the same period (+2.4% +/-
11.7, p=0.16), for a 10.3% difference between groups (p<0.001). ApoB measured in
a subset (n=53) revealed a 20% reduction with treatment (p=0.004). Treatment subjects
showed a reduction in homocysteine (9.8 mg/dl to 8.7 mg/dl, p=0.02), while
neither TG (p=0.95) nor HDL-c (p=0.54) changed.
Conclusions:
Significant LDL- and ApoB-lowering effects are demonstrated. No adverse effects on
triglyceride or HDL-c levels were noted, and folate/B vitamin-derived benefits
towards homocysteine reduction were preserved. This combination product could be
used to reduce the need for concomitant lipid lowering prescription therapy, as well
as for advancing self-styled primary prevention strategies.


Bios Life 2® - Abstract explanation
The abstract explains the results of the controlled, randomized, double-blind clinical trial on Bios Life 2®
that was accomplished by the Cleveland Clinic.
The abstract states that 119 patients were randomized for the trial. All of the patients were required to eat.
Rik J. Deitsch

Before medications are approved for widespread use, they are typically tested in a controlled clinical trial.
Controlled trials are considered necessary to show that a medication's effects are not subjective (relying on the
patient's or physician's interpretation). Otherwise, a researcher might (perhaps unintentionally) test the medication
only in patients who already show signs of responding well to treatment. Or a patient, knowing that
the medication is supposed to have a specific effect, could experience that effect due to some other factor but
attribute the relief solely to the new medication.
The preferred way to avoid subjectivity is to do a controlled study. In a controlled study or trial, patients
in one group receive the investigational product while patients in another group—the control group—receive
a placebo (an inactive substance that is indistinguishable from the investigational product). This arrangement
allows researchers to compare the health of the group receiving the new product with the control group. If the
group receiving the new product shows clear and measurable improvements in symptoms, but the control
group does not, researchers can reasonably conclude that the new product was responsible for improving the
health of the treatment group.
To ensure that comparisons between a treatment group and control group are scientifically valid,
researchers select people for both groups who are similar in age, weight, health status, and other factors. The
most common way to accomplish this is through randomization. Researchers first gather a group of people
with similar characteristics. They then randomly assign each person to either the treatment group or the control
group. This ensures that certain patients aren't "hand picked" for a group because of their characteristics.
The final step in ensuring that a research study is objective is blinding. Blinding is used to eliminate the
effects of personal beliefs and biases (on the part of both researchers and patients). In a single-blind study, the
patients do not know whether they are in the treatment group or the control group, but the researchers do
know. In a double-blind study, no one involved—not the patients, researchers, or data analysts—know which
patients are receiving the new product and which are not.
A controlled, randomized, double-blind clinical trial therefore produces the most objective and scientifithe
same low-fat diet for the six weeks leading up to the trial and then continue on a controlled diet throughout
the trial. This isolated the variable. In other words, the patients' diet would not have been the cause of any
difference in serum cholesterol as all of the patients had been following the same diet.
Ninety-nine patients completed the trial (50 on the Bios Life 2® and 49 on the placebo). Blood work was
done at the fourth and the eighth week of the trial. The values obtained from the blood work were then statistically
analyzed. Accepted methods of mathematical analysis can determine whether a difference in treatment
outcomes is statistically significant. A statistically significant difference means that the result is very unlikely to
be due to chance alone. Researchers represent the degree of certainty in a result as what is called a "p value."
A p value of less than 0.05 indicates that the results of the study are statistically accurate and did not occur by
chance. Achieving a significant p value is heavily dependent on the number of people in the groups that are
being compared.
LDL is "Low Density Lipoprotein." A lipoprotein substance (combination of a fat and a protein) acts as
a carrier for cholesterol and fats in the bloodstream. High levels of low density lipoprotein (LDL) are considered
a positive risk factor for the development of coronary artery disease. Less than 130 mg/dl is desirable, 130
to 159 mg/dl is borderline high, over 160 is considered high. The results showed that there was an average
difference in LDL levels of 10.3% between the groups. This is statistically significant (p<0.001) and shows
the difference being solely attributable to the Bios Life 2®.
ApoB is "Apolipoprotein B." Apolipoproteins are proteins on the surface of the lipoprotein complex that
bind to specific enzymes or that transport proteins on the cell membranes; this directs the lipoprotein to the
proper site of metabolism. ApoB is in LDL (low density lipoprotein). Unlike HDL and LDL measurements
(which are indirect), apolipoprotein levels can be measured directly. Knowing a patient's ApoB levels may give
a much more accurate picture of his or her health, including the risk for heart disease. The results showed a
20% reduction in ApoB with treatment. This value showed statistical significance (p=0.004).
Homocysteine is an amino acid produced by the body by altering another amino acid, methionine. In a
healthy system, homocysteine is usually converted into other amino acids. Elevated levels of homocysteine in
the blood appear to make for an elevated risk of cardiovascular (heart and vessel) disease. Homocysteine can
damage blood vessels in several ways. It injures the cells that line arteries and stimulates the growth of smooth
muscle cells. Homocysteine can also disrupt normal blood clotting mechanisms, increasing the risk of clots that
can bring on a heart attack or stroke. The results showed an 11.2% reduction in homocysteine levels in the
patients taking Bios Life 2®. This value has lower statistical significance (p=0.02), and the changes cannot be
wholly attributed to the product.
TG represents "triglycerides." These are the storage units for fat in the body. Elevations of the triglyceride
level (particularly in association with elevated cholesterol) have been correlated with the development of atherosclerosis,
an underlying cause of heart disease and stroke. The results showed a reduction in triglycerides
that was not statistically significant (p=0.95). As such, the article will represent that "triglycerides were
unchanged." Even that is important as many other methods for lowering serum cholesterol may increase
triglyceride levels.
HDL is "High Density Lipoprotein." Raised high density lipoprotein levels have been correlated with a
lower risk for heart disease. Less than 35 mg/dl is considered a positive risk factor for coronary artery disease,
while over 60 mg/dl is considered a negative risk factor (reduces your risk of heart disease). The results showed
an increase in HDL that was not statistically significant (p=0.54). As such, the article will represent that "HDL
levels were unchanged." Again, even that is important as many other methods for lowering serum cholesterol
may decrease HDL levels.
The most encouraging part of the abstract lies in the conclusion. Almost every study that is completed on
complementary therapies states an ambiguity in the conclusion. Usually something to the effect of "these
results suggest that more study is warranted." Dr. Sprecher never states anything like that. His simple conclusion
is that Bios Life 2® was effective in the clinical trial. He even states that Bios Life 2® should be used for
primary prevention of hypercholestremia.
 

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