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NCT Number: NCT03444155

Natural Versus Synthetic Vitamin B Complexes in Human

In a cross-over study the investigators evaluate the effects of natural (Panmol-B-Complex) (Pan [Greek] = all; moles [Latin] = molecules/particles - brand name) versus synthetic vitamin B complexes to identify the bioavailability of distinct vitamins as well as long-term effects. The primary hypothesis for this study: "Natural Vitamin B-complexes are as effective as synthetic Vitamin B-complexes or better." For this reason 30 subjects (18 to 65y; BMI >19 to <29) were recruited for this study. The study population was divided into 2 groups of each 15 subjects in a cross-over trial. Vitamin supplementation consisted of Thiamine (2.93 mg), Riboflavin (3.98 mg), Niacin (29.85 mg), Pantothenic acid (10.95 mg), Pyridoxine (3.38 mg), Biotin (0.108 mg), Folic acid (0.69 mg) and Cobalamin (8.85 µg) per day in both groups. Blood samples are taken at baseline - 1.5h after vitamin supplementation - 4h - 7h - 6 weeks - wash out phase I (2 weeks); start cross-over: baseline - 1.5h after vitamin supplementation - 4h - 7h - 6 weeks - washout phase II (6 weeks). In case of main target criteria Thiamin, Riboflavin, Pyridoxine, Folic acid and Cobalamin were measured in serum as well as total peroxides (µmol/L), peroxidase-activity (U/L), total antioxidant status (mmol/L) and polyphenols (mmol/L).

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Key information

Conditions

Healthy Avitaminosis Deficiency Diseases Folic Acid Deficiency Anemia, Dietary Homocystine; Metabolic Disorder Malnutrition Metabolic Diseases Nutrition Disorders Nutritional and Metabolic Diseases Oxidative Stress Peroxidase; Defect Polyphenols Pyridoxine Deficiency Thiamine and Niacin Deficiency States Vitamin B 12 Deficiency Vitamin B 6 Deficiency Vitamin B Deficiency

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Wonisch Willibald

Graz, Styria, 8036, Austria

About this study

Design:

Monocentric double-blind experiment

Scientific background:

Vitamin B-complex is water-soluble and essential for humans. Vitamin B deficiency is associated with neurologic diseases, heart insufficiency, diminished hormone production and maldigestion. Due to the fact that literature search did not reveal distinct information about natural versus synthetic Vitamin B-complexes this study was initiated to investigate bioavailability and long-term effects of natural Vitamin B-complexes in comparison to synthetic Vitamin B-complexes.

Vitamin B complex was filled in hydroxypropylmethylcellulose capsules (size 0, ivory-coloured). Daily dose = 3 capsules in the morning with 250ml water.

Blinding/Randomization:

The person in charge for manufacturing and blinding arranged an identical packaging of both verum as well as synthetic Vitamin B-complex. Each package consists of 126 capsules per subject and period. Each product was tagged with the subject-number and period (period I and period II).

Study-subjects were blinded by the person in charge for randomization through a sealed envelope. The allocation was in the relation of 1:1 between group A (verum in period I and synthetic Vitamin B-complex in period II) and group B (synthetic Vitamin B-complex in period I and verum in period II). The ultimate subject list was forwarded to the person in charge for randomization after the run-in phase.

Method:

Blood sampling:

Blood (max. 20ml) was collected in a seated position from an antecubital vein.

Time schedule:

Run-in-phase: 3 weeks (no supplementation) Determination of inclusion criteria, nutrition advice, randomization.

Phase I: 6 weeks (supplementation) Group A - natural Vitamin B-complex supplementation every day Group B - synthetic Vitamin B-complex supplementation every day

Blood sampling:

First day:

Fasting value (basic) - Vitamin B-complex supplementation - After 1.5 hours After 4 hours After 7 hours

End of first supplementation:

After 6 weeks

Wash-out period: 2 weeks (without supplementation)

Phase II: 6 weeks (supplementation) Group A - synthetic Vitamin B-complex supplementation every day Group B - natural Vitamin B-complex supplementation every day

Blood sampling:

First day:

Fasting value (basic) - Vitamin B-complex supplementation - After 1.5 hours After 4 hours After 7 hours

End of second supplementation:

After 6 weeks

Wash-out period II: 6 weeks (without supplementation) Final exam - last blood sampling

Drop-out-criteria:

Drawback Compliance (<80% of Vitamin B-complexes) Supplementation of Vitamin B-complexes during run-in-phase or wash-out periods

Primary-target parameters:

Serum concentrations for vitamins B1, B2, B6, B9 and B12

Secondary-target biomarkers:

Serum concentrations for Total antioxidants, total peroxides, peroxidase-activity, polyphenols and homocysteine.

Biometry:

Comparison of interventions in a cross-over approach descriptive and exploratory.

Group comparison: Parametric and non-parametric cross-over comparison Gaussian distribution - (Kolmogorov-Smirnov-test with Lilliefors-significances, alpha =10%).

Effect size: Two-sided 95%-confidence intervals

Analysis:

Intent-to-treat-analysis Per-protocol-analysis Full analysis set

Vitamin B and Homocysteine analysis was done in a routine laboratory. Antioxidants (TAC), peroxidase-activity (EPA), peroxides (TOC) and polyphenols (PPm) were measured by the use of commercially available microtitre assays at a wavelength of 450 vs. 620 nm. In case of PPm a wavelength of 766nm was used.

Implausible values will be scored as missing values. Missing values are not substituted.

Presentation of results:

Minimum-Median-Quartiles-Maximum-Mean-Standard deviation. Box Plots, Bar graph, tables.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Male and female
  • 18-65 y
  • Healthy

Exclusion criteria

  • Cholesterol >240mg/dl
  • Study inclusion in the past 2 months
  • Pregnancy and lactation period
  • Clinical diagnosis of chronic infections
  • Ingestion of trace elements, vitamin- and fatty acid supplements in the past 3 months
  • Clinical diagnosis of cardiovascular disease
  • Clinical diagnosis of cancer
  • Clinical diagnosis of psychotic diseases
  • Insulin dependent diabetes
  • Clinical diagnosis of autoimmune diseases
  • Maldigestion/Malabsorption
  • Veganes cuisine
  • > 1 Beer/day

Treatment and study plan

Natural Panmol-B-Complex

Dietary Supplement

Natural Panmol-B-Complex: B1 (2.93 mg), B2 (3.98 mg), B3 (29.85 mg), B5 (10.95 mg), B6 (3.38 mg), B7 (0.108 mg), B9 (0.69 mg), B12 (8.85 µg) - Synthetic Vitamin B-Complex - B1 (2.93 mg), B2 (3.98 mg), B3 (29.85 mg), B5 (10.95 mg), B6 (3.38 mg), B7 (0.108 mg), B9 (0.69 mg), B12 (8.85 µg)

Synthetic Vitamin B-Complex

Dietary Supplement

Synthetic Vitamin B-Complex: B1 (2.93 mg), B2 (3.98 mg), B3 (29.85 mg), B5 (10.95 mg), B6 (3.38 mg), B7 (0.108 mg), B9 (0.69 mg), B12 (8.85µg) - Natural Panmol-B-Complex: B1 (2.93 mg), B2 (3.98 mg), B3 (29.85 mg), B5 (10.95 mg), B6 (3.38 mg), B7 (0.108 mg), B9 (0.69 mg), B12 (8.85 µg)

Primary outcomes

  1. Serum Thiamine

    Time frame: 20 weeks

    Serum Thiamine in microgram per liter Minimum: 36 Maximum: 98

  2. Serum Riboflavin

    Time frame: 20 weeks

    Serum Riboflavin in microgram per liter Minimum: 190 Maximum: 341

  3. Serum Pyridoxine

    Time frame: 20 weeks

    Serum Pyridoxine in microgram per liter Minimum: 3.8 Maximum: 161.8

  4. Serum Folic Acid

    Time frame: 20 weeks

    Serum Folic acid in nanogram per liter Minimum: 2.20 Maximum: 58.10

  5. Serum Cobalamin

    Time frame: 20 weeks

    Serum Cobalamin in picogram per liter Minimum: 159 Maximum: 1230

Secondary outcomes

  1. Serum Total Peroxides

    Time frame: 20 weeks

    Serum Total peroxides in micromol per liter Minimum: 23 Maximum: 443

  2. Serum Total Antioxidant Capacity

    Time frame: 20 weeks

    Serum total antioxidant capacity in millimole per liter Minimum: 0.31 Maximum: 2.45

  3. Serum Endogenous Peroxidase-activity

    Time frame: 20 weeks

    Serum endogenous peroxidase-activity in milliunits per milliliter Minimum: 0.79 Maximum: 9.87

  4. Serum Polyphenols

    Time frame: 20 weeks

    Serum Polyphenols in millimole per liter Minimum: 7.45 Maximum: 10.91

  5. Total Homocysteine

    Time frame: 20 weeks

    Total Homocysteine in Micromole Minimum: 4.00 Maximum: 40.40

Sponsors and collaborators

Lead sponsor

Medical University of Graz

Other

Registry information

Official study title

Pilot Study for the Evaluation of the Effectiveness of Natural Versus Synthetic Vitamin B Complexes in Humans.

Important dates

Study start
2017
Primary completion
2017
Study completion
2017
First posted
Feb 23, 2018
Registry last updated
Apr 26, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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