ClinicalTrials.gg
CompletedNCT05247034Updated May 1, 2025Results posted

Effect of Cocoa Supplementation Peripheral and Autonomic Diabetic Neuropathy

An interventional study of Cocoa and Placebo in Diabetic Neuropathies, sponsored by Anahuac University. Completed at 3 sites in Mexico. Open to participants aged 40 Years to 60 Years. Per ClinicalTrials.gov, last updated 2025-05-01.

Sponsored by Anahuac University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 7 months after the study started (first participant enrolled Jun 2021, registered Jan 2022).
Phase
Not applicable
Study type
Interventional
Enrollment
39
Allocation
Randomized
Ages
40 Years to 60 Years
Sex
All
01

Study summary

Type 2 diabetes mellitus is a high incidence disease in Mexico and is associated with the development of chronic degenerative complications such as diabetic neuropathy. The latter manifests itself as a set of disorders that occur as a consequence of a chronic hyperglycemic state that can induce oxidative stress and inflammation, resulting in damage to the autonomic and peripheral nervous system. In Mexico, it has been reported that this complication usually occurs between 29% and 90% of patients with diabetes.

Cocoa is a food with a high content of flavonoids, which are phenolic compounds with antioxidant and anti-inflammatory effects. Additionally, its consumption has been associated with a decrease in hyperglycemia and insulin resistance, improvement in mitochondrial function, and, based on the above, an effect on diabetic complications has been suggested; This has been demonstrated in in vivo and in vitro models, but not in the human population.

Once the symptoms of diabetic neuropathy have started, palliative treatments are prescribed, and to date there are no pharmacological compounds that have been shown to reverse the consequences of diabetic peripheral and autonomic neuropathy. Additionally, clinical trials of compounds with antioxidant properties have only performed subjective evaluations based on questionnaires on the perception of the improvement of diabetic neuropathy and some biochemical markers or nerve conduction tests, however, the results shown have not been conclusive.

This is why a double-blind, randomized controlled clinical trial is proposed, with the objective of evaluating the effect of cocoa supplementation in patients with type 2 diabetes mellitus and peripheral and autonomic diabetic neuropathy on a) the biochemical profile, which includes the evaluation of the glycemic and lipid profile, quantification of pro-inflammatory cytokines and oxidative stress markers; b) the clinical profile through the application of standardized questionnaires, anthropometric measurements and blood pressure, and c) somatosensory processing through the paired pulse H reflex test.

The hypothesis of this study is that cocoa supplementation will have a beneficial effect on the biochemical and clinical profile and somatosensory processing of peripheral and autonomic diabetic neuropathy.

Read the detailed description

Type 2 diabetes mellitus (T2DM) is a high incidence disease in Mexico and is associated with the development of chronic degenerative complications such as diabetic neuropathy. The latter manifests itself as a set of disorders that occur as a consequence of a chronic hyperglycemic state that can induce oxidative stress and inflammation, resulting in damage to the autonomic and peripheral nervous system. In Mexico, it has been reported that this complication usually occurs between 29% and 90% of patients with diabetes.

Cocoa is a food with a high content of flavonoids, which are phenolic compounds with antioxidant and anti-inflammatory effects. Additionally, its consumption has been associated with a decrease in hyperglycemia and insulin resistance, improvement in mitochondrial function, and, based on the above, an effect on diabetic complications has been suggested; This has been demonstrated in in vivo and in vitro models, but not in the human population.

Once the symptoms of diabetic neuropathy have started, palliative treatments are prescribed, and to date there are no pharmacological compounds that have been shown to reverse the consequences of diabetic peripheral and autonomic neuropathy. Additionally, clinical trials of compounds with antioxidant properties have only performed subjective evaluations based on questionnaires on the perception of the improvement of diabetic neuropathy and some biochemical markers or nerve conduction tests, however, the results shown have not been conclusive.

This is why a double-blind, randomized controlled clinical trial is proposed, with the objective of evaluating the effect of cocoa supplementation in patients with type 2 diabetes mellitus and peripheral and autonomic diabetic neuropathy on a) the biochemical profile, which includes the evaluation of the glycemic and lipid profile, quantification of pro-inflammatory cytokines and oxidative stress markers; b) the clinical profile through the application of standardized questionnaires, anthropometric measurements and blood pressure, and c) somatosensory processing through the paired pulse H reflex test. Hypothesis: The hypothesis of this study is that cocoa supplementation will have a beneficial effect on the biochemical and clinical profile and somatosensory processing of peripheral and autonomic diabetic neuropathy. Statistical analysis: For the evaluation of the intragroup variables, a statistical analysis will be carried out with ANOVA for repeated samples with Tukey's post hoc, or, where appropriate, Friedman with Dunn's post hoc, as well as Student's t for dependent groups, or in its case, with Wilcoxon. The intergroup comparison will be made with Student's T for independent samples, or if applicable, with Mann Whitney's U, considering p \<0.05 as statistical significance and using the statistical software GraphPad Prism version 5.

The H reflex test will be performed by electrical stimulation through disposable surface electrodes connected to a constant current bipolar electrical stimulator (Digitimer DS8R). The recording of the electrophysiological signals will be carried out using surface electrodes connected to the signal acquisition and amplification system (LabChart and PowerLab 8/35, ADInstruments). The signals obtained will be sampled at 10 kilohertz (KHz) with a 0.5- 500 Hz band-pass filter. The signals will be stored in a computer for later analysis.

The placement of electrodes for stimulation will be carried out as follows: the active electrode (anode) at the level of the Achilles tendon, the positive electrode (cathode) above the inverted "v" between the calf muscles (gastrocnemius). Subsequently, the reference electrode will be placed at the level of the gastrocnemius heads. It will be stimulated behind the knee where the tibial nerve has its anatomical path.

The test will start with an intensity of 0 milliamp (mA) and then pulses will be given every 0.5 millivolts (mV) until the evoked potential (H reflex) is observed in a consistent and clearly identifiable way as a function of latency (35-45 ms). The electrical stimulus consists of the application of 1 square pulse (1 ms duration each pulse) every 10 seconds (10 pulses in total). The maximum intensity of the applied current will be according to the sensitivity and tolerance of the individual in both lower limbs during the tests on the sensory and motor nerves. The applied electrical pulse should not cause a painful sensation, but it can cause a tingling sensation. The test will be suspended if the individual reports pain or does not wish to continue with the research protocol. The "H" reflex test will be done in two parts. The first part of the protocol consists of determining the stimulus intensity vs. amplitude of motor responses from the appearance of the "M" wave and the "H" wave, for which the electric current will be increased in steps of 0.5 µA until the appearance of the waves. For this part, only one electrical pulse (1 ms duration) will be given every 10 seconds. The intensity of electrical current that will be used for the second part of the protocol will be that whose value in the amplitude curve of the H wave-electrical current intensity reaches 60% of the maximum amplitude. This stimulation value guarantees the reproducibility and minimum variability of this wave, which also prevents muscle contraction that contaminates the electrical register. The second part constitutes the paired electrical stimulation test in which two electrical pulses (1 ms in duration) will be produced at different frequencies between the pulses: 0.1, 1, 5 and 10 Hz. The interval between the paired pulses will be 10 s, until completing 10 series.

The electrophysiological recordings will be analyzed with the Clampfit 10.0 software. The latency and amplitude of the evoked potentials H1 and H2 will be determined for each electrical pulse and at all stimulation frequencies, taking the stimulus artifact as a reference. Subsequently, the ratio of the amplitude of the paired H2/H1 pulses will be determined to establish the modulation of spinal excitability. A ratio ≥0.6 for any stimulation frequency will be considered as an indicator of dysfunction in somatosensory processing according to Marshall et al.

02

Conditions studied

  • Diabetic Neuropathies

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Keywords

  • Cocoa
  • Diabetic neuropathy
  • H-reflex
  • Cardiometabolic risk factor
  • Polyphenols
  • Antioxidants
03

In context

Diabetic Neuropathies

538 studies on the registry are indexed under Diabetic Neuropathies; 80 are open to participants now.

This study's enrollment of 39 is below the median of 68 across 448 interventional studies indexed under Diabetic Neuropathies.

Browse Diabetic Neuropathies studies →

Lead sponsor

Anahuac University is the lead sponsor of 10 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
40 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Adults aged 40-60 years with a diagnosis of type 2 diabetes mellitus and diabetic neuropathy
  • Minimum time of diagnosis of T2DM of 5 years
  • Who have a Michigan Neuropathy Screening Instrument (MNSI) score ≥2
  • Male and Female
  • Have them sign the letter

Exclusion criteria

Exclusion Criteria:

  • Subjects who modify their pharmacological treatment during the study
  • Subjects who do not attend one of the intermediate consultations
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
39 participants (actual)

Study arms

  • Experimental
    Intervention group

    Diet for patients with diabetes + 4 capsules of cocoa powder, 500 mg each, daily for 12 weeks.

    Dietary Supplement: Cocoa

  • Placebo comparator
    Control group

    Diet for patients with diabetes + 4 capsules of methylcellulose 500 mg each, daily for 12 weeks.

    Other: Placebo

Interventions

  • Dietary supplementCocoa

    Each capsule of cocoa powder contains 12.5 mg of flavonoids, providing a total of 50 mg per day.

  • OtherPlacebo

    Each capsule contains 500 mg of methylcellulose

06

What researchers measure

Primary outcomes

  1. Toronto Clinical Scoring System (TCSS)

    It is a system of clinical evaluations carried out by the researcher to identify peripheral neuropathy, assigning a score to symptomatology, reflexes and sensory tests. For the purposes of this study, the total score, i.e., the sum of all units on the scale, is reported. The minimum score that can be obtained is 0 points, while the maximum is 19 points. This means that the higher the score, the greater the severity (no grades were established based on the severity of the neuropathy). For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline and after 12 weeks

Secondary outcomes

  1. Rate-dependent Depression of the H-reflex

    Rate-dependent depression (RDD) is a measure of change in amplitude of the Hoffman (H) reflex over consecutive stimulations. Rate-dependent depression is impaired after disinhibition of spinal sensory processing caused by spinal cord injury. For the purposes of this study, the ratio of the amplitude of the pulses Hn/H1 ≥ 0.5 for stimulation frequencies 1, 5 and 10 Hz, was considered as an indicator of dysfunction in somatosensory processing. In healthy subjects, the ratio of the amplitude of the pulses Hn/H1 is expected to be \<0.5. Each subject received 5 pulses for each stimulation frequency, and the average for each subject was determined. The group average was then obtained for each stimulation frequency (1, 5, and 10 Hz). For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline and after 12 weeks

  2. BEST Questionnaire

    The questionnaire includes 4 questions that refer to gastrointestinal symptoms. This questions are measured in a scale from 1 (better health status) to 5 (worse health status) and it is related to gastrointestinal autonomic diabetic neuropathy. Final score: Minimum is 4 points (better health status) and maximum is 19 points (worse health status). For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline, after 4, 8 and 12 weeks

  3. Bristol Stool Form Scale

    It is composed of categories that include an image and an explanation, ranging from 1 to 7, being 1 separate hard pieces, which pass with difficulty and 7 watery stools. It is related to gastrointestinal autonomic diabetic neuropathy. The reported outcomes are the percentage of participants who had altered bristol stool form scale, that is, participants who were in categories 1, 2, 5, 6 and 7.

    Time frame: At baseline and 12 weeks

  4. Weight

    Weight of an individual in kg determined by the scale. The measurement is done without shoes and with as little clothing as possible. The subject must be placed in the center and remain still during the measurement. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline, after 4, 8 and 12 weeks

  5. Waist Circumference

    Waist circumference in cm: The measuring tape is placed in a horizontal plane around the waist, taking the midaxillary line as a reference, locating the midpoint between the lower costal margin and the highest lateral border of the iliac crest. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline, after 4, 8 and 12 weeks

  6. Waist-to-Height Ratio

    It is obtained by dividing the waist circumference in cm by the height in cm, with a result of ≥ 0.5 indicating an increased risk for cardiometabolic disease. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline, after 4, 8 and 12 weeks

  7. Abdominal Circumference

    Abdominal circumference in cm: The top of the hip bone and the top of the right iliac crest are located and the measuring tape is placed horizontally around the abdomen, at the level of the iliac crest, at the end of a normal expiration. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline, after 4, 8 and 12 weeks

  8. Systolic Blood Pressure

    A sphygmomanometer is used to obtain blood pressure with the technique specified in the Clinical Practice Guidelines for the diagnosis and treatment of arterial hypertension at the first level of care, it is measured in mmHg. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline, after 4, 8 and 12 weeks

  9. Diastolic Blood Pressure

    A sphygmomanometer is used to obtain blood pressure with the technique specified in the Clinical Practice Guidelines for the diagnosis and treatment of arterial hypertension at the first level of care, it is measured in mmHg. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline, after 4, 8 and 12 weeks

  10. Glucose

    Blood glucose concentration and is measured as mg/dL. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline and after 12 weeks

  11. Glycated Hemoglobin A1c

    Value of the fraction of hemoglobin that has glucose attached and is reported in percentage (%). For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline and after 12 weeks

  12. Triglycerides

    Blood triglycerides concentration and is measured as mg/dL. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline and after 12 weeks

  13. High-density Lipoprotein Cholesterol

    Blood high-density lipoprotein cholesterol concentration and is measured as mg/dL. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline and after 12 weeks

  14. Triglycerides/HDL Ratio

    It is obtained after dividing the serum concentration of triglycerides in mg/dL by the serum concentration of HDL in mg/dL. It does not have units. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline and after 12 weeks

  15. Low-density Lipoprotein Cholesterol

    Blood low-density lipoprotein cholesterol concentration and is measured as mg/dL. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline and after 12 weeks

  16. Neutrophil/Lymphocyte Ratio

    It is obtained by dividing the serum concentration of the absolute number of neutrophils by the serum concentration of the absolute number of lymphocytes. Without unit. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline and after 12 weeks

  17. Diabetes 39 Instrument

    It is a self-administered instrument that allows patients to describe how their QOL was affected during the previous month in five domains: energy and mobility (15 questions), diabetes control (12 questions), anxiety and worry (4 questions), social impact (5 questions), and sexual behavior (3 questions). Responses are scored on a seven-point scale that ranged from "not affected at all" (score = 1) to "extremely affected" (score = 7). All responses are summed and it is applied a linear transformation to a 0-100 scale. Lower scores indicated a better QOL. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

    Time frame: At baseline and after 12 weeks

07

Results

Posted May 1, 2025
Limitations and caveats
Evaluation of inflammation and oxidative stress parameters was proposed, however, given the cost involved, neutrophil/lymphocyte ratio was used as a marker of inflammation, but oxidative stress was not measured. It was necessary to include different centers for recruiting potential candidates. The follow-up period was established based on human resources and the budget; however, it can be considered a short time to identify significant differences in outcomes such as RDD of the H-reflex.

Participant flow

Participant flow — Overall Study
MilestoneIntervention GroupControl Group
Started2019
Completed1617
Not completed42
Withdrew: Lost to follow-up32
Withdrew: Organizational problems when attending appointments10

Outcome measures

PrimaryToronto Clinical Scoring System (TCSS)

It is a system of clinical evaluations carried out by the researcher to identify peripheral neuropathy, assigning a score to symptomatology, reflexes and sensory tests. For the purposes of this study, the total score, i.e., the sum of all units on the scale, is reported. The minimum score that can be obtained is 0 points, while the maximum is 19 points. This means that the higher the score, the greater the severity (no grades were established based on the severity of the neuropathy). For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline and after 12 weeks
Reported as:
Mean · Score on a scale
Toronto Clinical Scoring System (TCSS)
Score on a scaleIntervention GroupControl Group
Change from baseline at Week 12-2.63 ± 2.24-1.84 ± 2.77
Baseline total score9.31 ± 3.986.89 ± 3.47
Final total score6.68 ± 4.415.05 ± 2.91
Statistical analysis
  • Intervention Group vs Control Group · t-test, 2 sided · p = >0.05
  • Intervention Group · Wilcoxon (Mann-Whitney) · p = 0.0001
  • Control Group · Wilcoxon (Mann-Whitney) · p = 0.0125
SecondaryRate-dependent Depression of the H-reflex

Rate-dependent depression (RDD) is a measure of change in amplitude of the Hoffman (H) reflex over consecutive stimulations. Rate-dependent depression is impaired after disinhibition of spinal sensory processing caused by spinal cord injury. For the purposes of this study, the ratio of the amplitude of the pulses Hn/H1 ≥ 0.5 for stimulation frequencies 1, 5 and 10 Hz, was considered as an indicator of dysfunction in somatosensory processing. In healthy subjects, the ratio of the amplitude of the pulses Hn/H1 is expected to be \<0.5. Each subject received 5 pulses for each stimulation frequency, and the average for each subject was determined. The group average was then obtained for each stimulation frequency (1, 5, and 10 Hz). For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline and after 12 weeks
Reported as:
Mean · Ratio
Rate-dependent Depression of the H-reflex
RatioIntervention GroupControl Group
Change from baseline at Week 12 for 1 Hz0.13 ± 0.360.01 ± 0.28
Baseline 1 Hz mean0.87 ± 0.350.88 ± 0.33
Final 1 Hz mean0.99 ± 0.280.89 ± 0.16
Change from baseline at Week 12 for 5 Hz-0.02 ± 0.51-0.03 ± 0.30
Baseline 5 Hz mean0.91 ± 0.670.71 ± 0.38
Final 5 Hz mean0.89 ± 0.210.65 ± 0.27
Change from baseline at Week 12 for 10 Hz0.13 ± 0.28-0.06 ± 0.20
Baseline 10 Hz mean0.56 ± 0.470.71 ± 0.42
Final 10 Hz mean0.72 ± 0.250.62 ± 0.30
Statistical analysis
  • Intervention Group vs Control Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Intervention Group vs Control Group · t-test, 2 sided · p = >0.05
  • Intervention Group · t-test, 2 sided · p = >0.05
  • Control Group · t-test, 2 sided · p = >0.05
SecondaryBEST Questionnaire

The questionnaire includes 4 questions that refer to gastrointestinal symptoms. This questions are measured in a scale from 1 (better health status) to 5 (worse health status) and it is related to gastrointestinal autonomic diabetic neuropathy. Final score: Minimum is 4 points (better health status) and maximum is 19 points (worse health status). For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline, after 4, 8 and 12 weeks
Reported as:
Mean · score on a scale
BEST Questionnaire
score on a scaleIntervention GroupControl Group
Change from baseline at Week 12-1.45 ± 2.62-2.21 ± 2.59
Baseline total score9.35 ± 2.759.05 ± 2.77
Final total score7.9 ± 2.676.84 ± 2.6
Statistical analysis
  • Intervention Group vs Control Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Intervention Group · Friedman · p = 0.042
  • Control Group · Friedman · p = 0.015
SecondaryBristol Stool Form Scale

It is composed of categories that include an image and an explanation, ranging from 1 to 7, being 1 separate hard pieces, which pass with difficulty and 7 watery stools. It is related to gastrointestinal autonomic diabetic neuropathy. The reported outcomes are the percentage of participants who had altered bristol stool form scale, that is, participants who were in categories 1, 2, 5, 6 and 7.

Time frame:
At baseline and 12 weeks
Reported as:
Number · percentage of participants
Bristol Stool Form Scale
percentage of participantsIntervention GroupControl Group
Baseline altered bristol stool scale form4057.8
Final altered bristol stool scale form3052.6
Statistical analysis
  • Intervention Group vs Control Group · Z Test · p = >0.05
  • Intervention Group · Z Test · p = >0.05
  • Control Group · Z Test · p = >0.05
SecondaryWeight

Weight of an individual in kg determined by the scale. The measurement is done without shoes and with as little clothing as possible. The subject must be placed in the center and remain still during the measurement. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline, after 4, 8 and 12 weeks
Reported as:
Mean · kg
Weight
kgIntervention GroupControl Group
Change from baseline at Week 120.38 ± 2.72-0.42 ± 2.18
Baseline73.5 ± 14.182.8 ± 13.8
Week 474.4 ± 14.882.5 ± 13.9
Week 874.1 ± 14.783 ± 13.7
Final73.8 ± 14.682.4 ± 13.9
Statistical analysis
  • Intervention Group vs Control Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Intervention Group · ANOVA · p = >0.05
  • Control Group · ANOVA · p = >0.05
SecondaryWaist Circumference

Waist circumference in cm: The measuring tape is placed in a horizontal plane around the waist, taking the midaxillary line as a reference, locating the midpoint between the lower costal margin and the highest lateral border of the iliac crest. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline, after 4, 8 and 12 weeks
Reported as:
Mean · cm
Waist Circumference
cmIntervention GroupControl Group
Change from baseline at Week 12-0.8 ± 2.19-1.38 ± 4.11
Baseline96.7 ± 7.49103 ± 13.1
Week 496.5 ± 7.08103 ± 11.7
Week 896 ± 7.33103 ± 12
Final95.9 ± 7.28102 ± 12
Statistical analysis
  • Intervention Group vs Control Group · t-test, 2 sided · p = >0.05
  • Intervention Group · ANOVA · p = >0.05
  • Control Group · ANOVA · p = >0.05
SecondaryWaist-to-Height Ratio

It is obtained by dividing the waist circumference in cm by the height in cm, with a result of ≥ 0.5 indicating an increased risk for cardiometabolic disease. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline, after 4, 8 and 12 weeks
Reported as:
Mean · Ratio
Waist-to-Height Ratio
RatioIntervention GroupControl Group
Change from baseline at Week 12-0.00 ± 0.01-0.00 ± 0.02
Baseline0.6 ± 0.040.64 ± 0.09
Week 40.6 ± 0.040.64 ± 0.08
Week 80.6 ± 0.040.64 ± 0.09
Final0.6 ± 0.040.63 ± 0.09
Statistical analysis
  • Intervention Group vs Control Group · t-test, 2 sided · p = >0.05
  • Intervention Group · ANOVA · p = >0.05
  • Control Group · ANOVA · p = >0.05
SecondaryAbdominal Circumference

Abdominal circumference in cm: The top of the hip bone and the top of the right iliac crest are located and the measuring tape is placed horizontally around the abdomen, at the level of the iliac crest, at the end of a normal expiration. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline, after 4, 8 and 12 weeks
Reported as:
Mean · cm
Abdominal Circumference
cmIntervention GroupControl Group
Change from baseline at Week 12-0.75 ± 2.45-1.02 ± 3.07
Baseline100 ± 9.31106 ± 11.4
Week 4100 ± 9.26105 ± 11.7
Week 899.9 ± 9.27105 ± 12
Final99.4 ± 9.01104 ± 12.1
Statistical analysis
  • Intervention Group vs Control Group · t-test, 2 sided · p = >0.05
  • Intervention Group · ANOVA · p = >0.05
  • Control Group · ANOVA · p = >0.05
SecondarySystolic Blood Pressure

A sphygmomanometer is used to obtain blood pressure with the technique specified in the Clinical Practice Guidelines for the diagnosis and treatment of arterial hypertension at the first level of care, it is measured in mmHg. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline, after 4, 8 and 12 weeks
Reported as:
Mean · mmHg
Systolic Blood Pressure
mmHgIntervention GroupControl Group
Change from baseline at Week 12-3.7 ± 11-3.78 ± 14.8
Baseline126 ± 14.6127 ± 15.5
Week 4125 ± 13.5130 ± 17.2
Week 8122 ± 12.2125 ± 9.7
Final122 ± 14.2124 ± 11.7
Statistical analysis
  • Intervention Group vs Control Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Intervention Group · ANOVA · p = >0.05
  • Control Group · Friedman · p = >0.05
SecondaryDiastolic Blood Pressure

A sphygmomanometer is used to obtain blood pressure with the technique specified in the Clinical Practice Guidelines for the diagnosis and treatment of arterial hypertension at the first level of care, it is measured in mmHg. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline, after 4, 8 and 12 weeks
Reported as:
Mean · mmHg
Diastolic Blood Pressure
mmHgIntervention GroupControl Group
Change from baseline at Week 12-2.32 ± 7.57-2.36 ± 10.1
Baseline79.9 ± 8.2378.1 ± 7.98
Week 478.7 ± 8.7879 ± 7.77
Week 879.8 ± 9.176.6 ± 7.13
Final77.6 ± 9.9675.7 ± 7.97
Statistical analysis
  • Intervention Group vs Control Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Intervention Group · ANOVA · p = >0.05
  • Control Group · Friedman · p = >0.05
SecondaryGlucose

Blood glucose concentration and is measured as mg/dL. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline and after 12 weeks
Reported as:
Mean · mg/dL
Glucose
mg/dLIntervention GroupControl Group
Change from baseline at Week 12-17 ± 42.8-38.1 ± 55.9
Baseline mg/dL169 ± 62.6195 ± 85.7
Final mg/dL152 ± 58.4157 ± 63.6
Statistical analysis
  • Intervention Group vs Control Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Intervention Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Control Group · Wilcoxon (Mann-Whitney) · p = 0.0027
SecondaryGlycated Hemoglobin A1c

Value of the fraction of hemoglobin that has glucose attached and is reported in percentage (%). For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline and after 12 weeks
Reported as:
Mean · percentage of glycated hemoglobin
Glycated Hemoglobin A1c
percentage of glycated hemoglobinIntervention GroupControl Group
Change from baseline at Week 12-0.17 ± 1.09-0.27 ± 0.60
Baseline % of glycated hemoglobin7.82 ± 1.98.28 ± 2.02
Final % of glycated hemoglobin7.72 ± 1.58 ± 2.04
Statistical analysis
  • Intervention Group vs Control Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Intervention Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Control Group · Wilcoxon (Mann-Whitney) · p = 0.0430
SecondaryTriglycerides

Blood triglycerides concentration and is measured as mg/dL. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline and after 12 weeks
Reported as:
Mean · mg/dL
Triglycerides
mg/dLIntervention GroupControl Group
Change from baseline at Week 12-4.96 ± 60.2-13.9 ± 44.6
Baseline mg/dL182 ± 81.4179 ± 58.8
Final mg/dL177 ± 78.8165 ± 52.1
Statistical analysis
  • Intervention Group vs Control Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Intervention Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Control Group · t-test, 2 sided · p = >0.05
SecondaryHigh-density Lipoprotein Cholesterol

Blood high-density lipoprotein cholesterol concentration and is measured as mg/dL. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline and after 12 weeks
Reported as:
Mean · mg/dL
High-density Lipoprotein Cholesterol
mg/dLIntervention GroupControl Group
Change from baseline at Week 12-0.86 ± 3.712.18 ± 6.23
Baseline mg/dL37.8 ± 9.5238.2 ± 9.12
Final mg/dL36.9 ± 7.540.4 ± 6.26
Statistical analysis
  • Intervention Group vs Control Group · t-test, 2 sided · p = >0.05
  • Intervention Group · t-test, 2 sided · p = >0.05
  • Control Group · Wilcoxon (Mann-Whitney) · p = >0.05
SecondaryTriglycerides/HDL Ratio

It is obtained after dividing the serum concentration of triglycerides in mg/dL by the serum concentration of HDL in mg/dL. It does not have units. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline and after 12 weeks
Reported as:
Mean · Ratio
Triglycerides/HDL Ratio
RatioIntervention GroupControl Group
Change from baseline at Week 12-0.02 ± 1.98-0.74 ± 2.13
Baseline5.12 ± 2.844.99 ± 2.13
Final5.1 ± 2.94.25 ± 1.31
Statistical analysis
  • Intervention Group vs Control Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Intervention Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Control Group · t-test, 2 sided · p = >0.05
SecondaryLow-density Lipoprotein Cholesterol

Blood low-density lipoprotein cholesterol concentration and is measured as mg/dL. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline and after 12 weeks
Reported as:
Mean · mg/dL
Low-density Lipoprotein Cholesterol
mg/dLIntervention GroupControl Group
Change from baseline at Week 128.88 ± 22.14.15 ± 18.1
Baseline mg/dL112 ± 31.8108 ± 31.3
Final mg/dL121 ± 35.2112 ± 34.7
Statistical analysis
  • Intervention Group vs Control Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Intervention Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Control Group · t-test, 2 sided · p = >0.05
SecondaryNeutrophil/Lymphocyte Ratio

It is obtained by dividing the serum concentration of the absolute number of neutrophils by the serum concentration of the absolute number of lymphocytes. Without unit. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline and after 12 weeks
Reported as:
Mean · Ratio
Neutrophil/Lymphocyte Ratio
RatioIntervention GroupControl Group
Change from baseline at Week 12-0.09 ± 0.770.15 ± 0.45
Baseline1.96 ± 0.861.76 ± 0.55
Final1.87 ± 1.071.92 ± 0.61
Statistical analysis
  • Intervention Group vs Control Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Intervention Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Control Group · t-test, 2 sided · p = >0.05
SecondaryDiabetes 39 Instrument

It is a self-administered instrument that allows patients to describe how their QOL was affected during the previous month in five domains: energy and mobility (15 questions), diabetes control (12 questions), anxiety and worry (4 questions), social impact (5 questions), and sexual behavior (3 questions). Responses are scored on a seven-point scale that ranged from "not affected at all" (score = 1) to "extremely affected" (score = 7). All responses are summed and it is applied a linear transformation to a 0-100 scale. Lower scores indicated a better QOL. For the data represented in the row "Change from baseline at Week 12", it is the delta of the final measurement vs. the initial measurement, that is, the final measurement minus the baseline measurement.

Time frame:
At baseline and after 12 weeks
Reported as:
Mean · score on a scale
Diabetes 39 Instrument
score on a scaleIntervention GroupControl Group
Change from baseline at Week 12-9.19 ± 11.6-5.26 ± 19
Baseline total score43.4 ± 26.835.6 ± 22.6
Final total score34.2 ± 25.830.4 ± 24.5
Statistical analysis
  • Intervention Group vs Control Group · Wilcoxon (Mann-Whitney) · p = >0.05
  • Intervention Group · Wilcoxon (Mann-Whitney) · p = 0.0007
  • Control Group · Wilcoxon (Mann-Whitney) · p = >0.05

Adverse events

Collected over 12 weeks. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Intervention Group0/20 (0%)0/20 (0%)0/20 (0%)
Control Group0/19 (0%)0/19 (0%)0/19 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)Intervention GroupControl GroupTotal
Mean53.6 ± 8.6753.7 ± 6.3453.7 ± 7.52
Sex: Female, Male
Sex: Female, Male(Participants)Intervention GroupControl GroupTotal
Female101222
Male10717
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)Intervention GroupControl GroupTotal
Count of participants——0
Region of Enrollment
Region of Enrollment(participants)Intervention GroupControl GroupTotal
Mexico201939
Toronto Clinical Scoring System
Toronto Clinical Scoring System(units on a scale)Intervention GroupControl GroupTotal
Mean9.31 ± 3.986.89 ± 3.478.10 ± 3.88
08

Study locations

3 sites
  • Universidad Anáhuac México Norte
    Huixquilucan, State Of Mexico 52786, Mexico
  • Centro de Especialidades del Riñón
    Naucalpan De Juárez, State Of Mexico 53100, Mexico
  • Clínica de Medicina Familiar "Nueva Oxtotitlán" ISSSTE
    Toluca de Lerdo, State Of Mexico 50100, Mexico
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 1, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05247034
Lead sponsor
Anahuac University
Responsible party
Rebeca Kababie Ameo (Sponsor-Investigator, Anahuac University) — Principal investigator
First posted
Feb 18, 2022
Start date
Jun 4, 2021
Primary completion
Jun 30, 2024
Completion
Sep 3, 2024
Results posted
May 1, 2025
Last update
May 1, 2025

Study contacts

Carlos Cuéllar-Ramos, PhD
study director · Anahuac University
Gabriela Gutiérrez-Salmeán, PhD
study director · Anahuac University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Cocoa bean

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