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Effect of Cocoa Supplementation Peripheral and Autonomic Diabetic Neuropathy

Evaluation of the Effect of Cocoa Supplementation on Biochemical and Clinical Profile and Sensory-motor Processing of Peripheral and Autonomic Diabetic Neuropathy: Randomized Clinical Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05247034
Enrollment
39
Registered
2022-02-18
Start date
2021-06-04
Completion date
2024-09-03
Last updated
2025-05-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetic Neuropathies

Keywords

Cocoa, Diabetic neuropathy, H-reflex, Cardiometabolic risk factor, Polyphenols, Antioxidants

Brief 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.

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.

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

Sponsors

Anahuac University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
40 Years to 60 Years
Healthy volunteers
No

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 informed consent letter

Exclusion criteria

* Subjects who modify their pharmacological treatment during the study * Subjects who do not attend one of the intermediate consultations

Design outcomes

Primary

MeasureTime frameDescription
Toronto Clinical Scoring System (TCSS)At baseline and after 12 weeksIt 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.

Secondary

MeasureTime frameDescription
BEST QuestionnaireAt baseline, after 4, 8 and 12 weeksThe 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.
Bristol Stool Form ScaleAt baseline and 12 weeksIt 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.
WeightAt baseline, after 4, 8 and 12 weeksWeight 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.
Waist CircumferenceAt baseline, after 4, 8 and 12 weeksWaist 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.
Waist-to-Height RatioAt baseline, after 4, 8 and 12 weeksIt 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.
Abdominal CircumferenceAt baseline, after 4, 8 and 12 weeksAbdominal 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.
Systolic Blood PressureAt baseline, after 4, 8 and 12 weeksA 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.
Diastolic Blood PressureAt baseline, after 4, 8 and 12 weeksA 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.
Rate-dependent Depression of the H-reflexAt baseline and after 12 weeksRate-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.
Glycated Hemoglobin A1cAt baseline and after 12 weeksValue 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.
TriglyceridesAt baseline and after 12 weeksBlood 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.
High-density Lipoprotein CholesterolAt baseline and after 12 weeksBlood 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.
Triglycerides/HDL RatioAt baseline and after 12 weeksIt 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.
Low-density Lipoprotein CholesterolAt baseline and after 12 weeksBlood 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.
Neutrophil/Lymphocyte RatioAt baseline and after 12 weeksIt 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.
Diabetes 39 InstrumentAt baseline and after 12 weeksIt 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.
GlucoseAt baseline and after 12 weeksBlood 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.

Countries

Mexico

Participant flow

Participants by arm

ArmCount
Intervention Group
Diet for patients with diabetes + 4 capsules of cocoa powder, 500 mg each, daily for 12 weeks. Cocoa: Each capsule of cocoa powder contains 12.5 mg of flavonoids, providing a total of 50 mg per day.
20
Control Group
Diet for patients with diabetes + 4 capsules of methylcellulose 500 mg each, daily for 12 weeks. Placebo: Each capsule contains 500 mg of methylcellulose
19
Total39

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up32
Overall StudyOrganizational problems when attending appointments10

Baseline characteristics

CharacteristicIntervention GroupTotalControl Group
Age, Continuous53.6 years
STANDARD_DEVIATION 8.67
53.7 years
STANDARD_DEVIATION 7.52
53.7 years
STANDARD_DEVIATION 6.34
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
Mexico
20 participants39 participants19 participants
Sex: Female, Male
Female
10 Participants22 Participants12 Participants
Sex: Female, Male
Male
10 Participants17 Participants7 Participants
Toronto Clinical Scoring System9.31 units on a scale
STANDARD_DEVIATION 3.98
8.10 units on a scale
STANDARD_DEVIATION 3.88
6.89 units on a scale
STANDARD_DEVIATION 3.47

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 200 / 19
other
Total, other adverse events
0 / 200 / 19
serious
Total, serious adverse events
0 / 200 / 19

Outcome results

Primary

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

Population: We could not obtain the Toronto Clinical Scoring System from one subject in the intervention group.~Intention-to-treat analysis was performed.

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupToronto Clinical Scoring System (TCSS)Baseline total score9.31 Score on a scaleStandard Deviation 3.98
Intervention GroupToronto Clinical Scoring System (TCSS)Final total score6.68 Score on a scaleStandard Deviation 4.41
Intervention GroupToronto Clinical Scoring System (TCSS)Change from baseline at Week 12-2.63 Score on a scaleStandard Deviation 2.24
Control GroupToronto Clinical Scoring System (TCSS)Change from baseline at Week 12-1.84 Score on a scaleStandard Deviation 2.77
Control GroupToronto Clinical Scoring System (TCSS)Baseline total score6.89 Score on a scaleStandard Deviation 3.47
Control GroupToronto Clinical Scoring System (TCSS)Final total score5.05 Score on a scaleStandard Deviation 2.91
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05t-test, 2 sided
p-value: 0.0001Wilcoxon (Mann-Whitney)
p-value: 0.0125Wilcoxon (Mann-Whitney)
Secondary

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

Population: Abdominal circumference couldn't be obtained from 2 subjects (1 from cocoa group and 1 from control group) Intention-to-treat analysis was performed.

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupAbdominal CircumferenceChange from baseline at Week 12-0.75 cmStandard Deviation 2.45
Intervention GroupAbdominal CircumferenceWeek 899.9 cmStandard Deviation 9.27
Intervention GroupAbdominal CircumferenceWeek 4100 cmStandard Deviation 9.26
Intervention GroupAbdominal CircumferenceFinal99.4 cmStandard Deviation 9.01
Intervention GroupAbdominal CircumferenceBaseline100 cmStandard Deviation 9.31
Control GroupAbdominal CircumferenceFinal104 cmStandard Deviation 12.1
Control GroupAbdominal CircumferenceChange from baseline at Week 12-1.02 cmStandard Deviation 3.07
Control GroupAbdominal CircumferenceWeek 4105 cmStandard Deviation 11.7
Control GroupAbdominal CircumferenceWeek 8105 cmStandard Deviation 12
Control GroupAbdominal CircumferenceBaseline106 cmStandard Deviation 11.4
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05t-test, 2 sided
p-value: >0.05ANOVA
p-value: >0.05ANOVA
Secondary

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

Population: Intention-to-treat analysis was performed

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupBEST QuestionnaireChange from baseline at Week 12-1.45 score on a scaleStandard Deviation 2.62
Intervention GroupBEST QuestionnaireBaseline total score9.35 score on a scaleStandard Deviation 2.75
Intervention GroupBEST QuestionnaireFinal total score7.9 score on a scaleStandard Deviation 2.67
Control GroupBEST QuestionnaireChange from baseline at Week 12-2.21 score on a scaleStandard Deviation 2.59
Control GroupBEST QuestionnaireBaseline total score9.05 score on a scaleStandard Deviation 2.77
Control GroupBEST QuestionnaireFinal total score6.84 score on a scaleStandard Deviation 2.6
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: 0.042Friedman
p-value: 0.015Friedman
Secondary

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

Population: Results presented are represented as percentage of subjects who had alteration in their bristol scale

ArmMeasureGroupValue (NUMBER)
Intervention GroupBristol Stool Form ScaleBaseline altered bristol stool scale form40 percentage of participants
Intervention GroupBristol Stool Form ScaleFinal altered bristol stool scale form30 percentage of participants
Control GroupBristol Stool Form ScaleBaseline altered bristol stool scale form57.8 percentage of participants
Control GroupBristol Stool Form ScaleFinal altered bristol stool scale form52.6 percentage of participants
p-value: >0.05Z Test
p-value: >0.05Z Test
p-value: >0.05Z Test
Secondary

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

Population: Intention-to-treat analysis was performed

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupDiabetes 39 InstrumentChange from baseline at Week 12-9.19 score on a scaleStandard Deviation 11.6
Intervention GroupDiabetes 39 InstrumentBaseline total score43.4 score on a scaleStandard Deviation 26.8
Intervention GroupDiabetes 39 InstrumentFinal total score34.2 score on a scaleStandard Deviation 25.8
Control GroupDiabetes 39 InstrumentChange from baseline at Week 12-5.26 score on a scaleStandard Deviation 19
Control GroupDiabetes 39 InstrumentBaseline total score35.6 score on a scaleStandard Deviation 22.6
Control GroupDiabetes 39 InstrumentFinal total score30.4 score on a scaleStandard Deviation 24.5
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: 0.0007Wilcoxon (Mann-Whitney)
p-value: >0.05Wilcoxon (Mann-Whitney)
Secondary

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

Population: Intention-to-treat analysis was performed.

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupDiastolic Blood PressureChange from baseline at Week 12-2.32 mmHgStandard Deviation 7.57
Intervention GroupDiastolic Blood PressureWeek 879.8 mmHgStandard Deviation 9.1
Intervention GroupDiastolic Blood PressureBaseline79.9 mmHgStandard Deviation 8.23
Intervention GroupDiastolic Blood PressureFinal77.6 mmHgStandard Deviation 9.96
Intervention GroupDiastolic Blood PressureWeek 478.7 mmHgStandard Deviation 8.78
Control GroupDiastolic Blood PressureFinal75.7 mmHgStandard Deviation 7.97
Control GroupDiastolic Blood PressureBaseline78.1 mmHgStandard Deviation 7.98
Control GroupDiastolic Blood PressureWeek 479 mmHgStandard Deviation 7.77
Control GroupDiastolic Blood PressureWeek 876.6 mmHgStandard Deviation 7.13
Control GroupDiastolic Blood PressureChange from baseline at Week 12-2.36 mmHgStandard Deviation 10.1
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: >0.05ANOVA
p-value: >0.05Friedman
Secondary

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

Population: Intention-to-treat analysis was performed

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupGlucoseChange from baseline at Week 12-17 mg/dLStandard Deviation 42.8
Intervention GroupGlucoseBaseline mg/dL169 mg/dLStandard Deviation 62.6
Intervention GroupGlucoseFinal mg/dL152 mg/dLStandard Deviation 58.4
Control GroupGlucoseChange from baseline at Week 12-38.1 mg/dLStandard Deviation 55.9
Control GroupGlucoseBaseline mg/dL195 mg/dLStandard Deviation 85.7
Control GroupGlucoseFinal mg/dL157 mg/dLStandard Deviation 63.6
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: 0.0027Wilcoxon (Mann-Whitney)
Secondary

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

Population: Intention-to-treat analysis was performed

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupGlycated Hemoglobin A1cFinal % of glycated hemoglobin7.72 percentage of glycated hemoglobinStandard Deviation 1.5
Intervention GroupGlycated Hemoglobin A1cChange from baseline at Week 12-0.17 percentage of glycated hemoglobinStandard Deviation 1.09
Intervention GroupGlycated Hemoglobin A1cBaseline % of glycated hemoglobin7.82 percentage of glycated hemoglobinStandard Deviation 1.9
Control GroupGlycated Hemoglobin A1cChange from baseline at Week 12-0.27 percentage of glycated hemoglobinStandard Deviation 0.6
Control GroupGlycated Hemoglobin A1cBaseline % of glycated hemoglobin8.28 percentage of glycated hemoglobinStandard Deviation 2.02
Control GroupGlycated Hemoglobin A1cFinal % of glycated hemoglobin8 percentage of glycated hemoglobinStandard Deviation 2.04
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: 0.043Wilcoxon (Mann-Whitney)
Secondary

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

Population: Intention-to-treat analysis was performed

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupHigh-density Lipoprotein CholesterolChange from baseline at Week 12-0.86 mg/dLStandard Deviation 3.71
Intervention GroupHigh-density Lipoprotein CholesterolBaseline mg/dL37.8 mg/dLStandard Deviation 9.52
Intervention GroupHigh-density Lipoprotein CholesterolFinal mg/dL36.9 mg/dLStandard Deviation 7.5
Control GroupHigh-density Lipoprotein CholesterolChange from baseline at Week 122.18 mg/dLStandard Deviation 6.23
Control GroupHigh-density Lipoprotein CholesterolBaseline mg/dL38.2 mg/dLStandard Deviation 9.12
Control GroupHigh-density Lipoprotein CholesterolFinal mg/dL40.4 mg/dLStandard Deviation 6.26
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05t-test, 2 sided
p-value: >0.05t-test, 2 sided
p-value: >0.05Wilcoxon (Mann-Whitney)
Secondary

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

Population: Intention-to-treat analysis was performed

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupLow-density Lipoprotein CholesterolChange from baseline at Week 128.88 mg/dLStandard Deviation 22.1
Intervention GroupLow-density Lipoprotein CholesterolBaseline mg/dL112 mg/dLStandard Deviation 31.8
Intervention GroupLow-density Lipoprotein CholesterolFinal mg/dL121 mg/dLStandard Deviation 35.2
Control GroupLow-density Lipoprotein CholesterolChange from baseline at Week 124.15 mg/dLStandard Deviation 18.1
Control GroupLow-density Lipoprotein CholesterolBaseline mg/dL108 mg/dLStandard Deviation 31.3
Control GroupLow-density Lipoprotein CholesterolFinal mg/dL112 mg/dLStandard Deviation 34.7
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: >0.05t-test, 2 sided
Secondary

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

Population: Intention-to-treat analysis was performed.

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupNeutrophil/Lymphocyte RatioChange from baseline at Week 12-0.09 RatioStandard Deviation 0.77
Intervention GroupNeutrophil/Lymphocyte RatioBaseline1.96 RatioStandard Deviation 0.86
Intervention GroupNeutrophil/Lymphocyte RatioFinal1.87 RatioStandard Deviation 1.07
Control GroupNeutrophil/Lymphocyte RatioChange from baseline at Week 120.15 RatioStandard Deviation 0.45
Control GroupNeutrophil/Lymphocyte RatioBaseline1.76 RatioStandard Deviation 0.55
Control GroupNeutrophil/Lymphocyte RatioFinal1.92 RatioStandard Deviation 0.61
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: >0.05t-test, 2 sided
Secondary

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

Population: H reflex was found only in 8 subjects of the intervention group and in 10 subjects of the control group.

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupRate-dependent Depression of the H-reflexBaseline 1 Hz mean0.87 RatioStandard Deviation 0.35
Intervention GroupRate-dependent Depression of the H-reflexFinal 5 Hz mean0.89 RatioStandard Deviation 0.21
Intervention GroupRate-dependent Depression of the H-reflexChange from baseline at Week 12 for 5 Hz-0.02 RatioStandard Deviation 0.51
Intervention GroupRate-dependent Depression of the H-reflexChange from baseline at Week 12 for 10 Hz0.13 RatioStandard Deviation 0.28
Intervention GroupRate-dependent Depression of the H-reflexFinal 1 Hz mean0.99 RatioStandard Deviation 0.28
Intervention GroupRate-dependent Depression of the H-reflexBaseline 10 Hz mean0.56 RatioStandard Deviation 0.47
Intervention GroupRate-dependent Depression of the H-reflexBaseline 5 Hz mean0.91 RatioStandard Deviation 0.67
Intervention GroupRate-dependent Depression of the H-reflexFinal 10 Hz mean0.72 RatioStandard Deviation 0.25
Intervention GroupRate-dependent Depression of the H-reflexChange from baseline at Week 12 for 1 Hz0.13 RatioStandard Deviation 0.36
Control GroupRate-dependent Depression of the H-reflexFinal 10 Hz mean0.62 RatioStandard Deviation 0.3
Control GroupRate-dependent Depression of the H-reflexChange from baseline at Week 12 for 1 Hz0.01 RatioStandard Deviation 0.28
Control GroupRate-dependent Depression of the H-reflexBaseline 1 Hz mean0.88 RatioStandard Deviation 0.33
Control GroupRate-dependent Depression of the H-reflexFinal 1 Hz mean0.89 RatioStandard Deviation 0.16
Control GroupRate-dependent Depression of the H-reflexChange from baseline at Week 12 for 5 Hz-0.03 RatioStandard Deviation 0.3
Control GroupRate-dependent Depression of the H-reflexBaseline 5 Hz mean0.71 RatioStandard Deviation 0.38
Control GroupRate-dependent Depression of the H-reflexFinal 5 Hz mean0.65 RatioStandard Deviation 0.27
Control GroupRate-dependent Depression of the H-reflexChange from baseline at Week 12 for 10 Hz-0.06 RatioStandard Deviation 0.2
Control GroupRate-dependent Depression of the H-reflexBaseline 10 Hz mean0.71 RatioStandard Deviation 0.42
Comparison: For 1 Hzp-value: >0.05Wilcoxon (Mann-Whitney)
Comparison: 5 and 10 Hzp-value: >0.05t-test, 2 sided
Comparison: For 1, 5 and 10 Hzp-value: >0.05t-test, 2 sided
Comparison: For 1, 5 and 10 Hzp-value: >0.05t-test, 2 sided
Secondary

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

Population: Intention-to-treat analysis was performed.

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupSystolic Blood PressureBaseline126 mmHgStandard Deviation 14.6
Intervention GroupSystolic Blood PressureWeek 8122 mmHgStandard Deviation 12.2
Intervention GroupSystolic Blood PressureWeek 4125 mmHgStandard Deviation 13.5
Intervention GroupSystolic Blood PressureFinal122 mmHgStandard Deviation 14.2
Intervention GroupSystolic Blood PressureChange from baseline at Week 12-3.7 mmHgStandard Deviation 11
Control GroupSystolic Blood PressureFinal124 mmHgStandard Deviation 11.7
Control GroupSystolic Blood PressureChange from baseline at Week 12-3.78 mmHgStandard Deviation 14.8
Control GroupSystolic Blood PressureBaseline127 mmHgStandard Deviation 15.5
Control GroupSystolic Blood PressureWeek 4130 mmHgStandard Deviation 17.2
Control GroupSystolic Blood PressureWeek 8125 mmHgStandard Deviation 9.7
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: >0.05ANOVA
p-value: >0.05Friedman
Secondary

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

Population: Intention-to-treat analysis was performed

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupTriglyceridesChange from baseline at Week 12-4.96 mg/dLStandard Deviation 60.2
Intervention GroupTriglyceridesBaseline mg/dL182 mg/dLStandard Deviation 81.4
Intervention GroupTriglyceridesFinal mg/dL177 mg/dLStandard Deviation 78.8
Control GroupTriglyceridesChange from baseline at Week 12-13.9 mg/dLStandard Deviation 44.6
Control GroupTriglyceridesBaseline mg/dL179 mg/dLStandard Deviation 58.8
Control GroupTriglyceridesFinal mg/dL165 mg/dLStandard Deviation 52.1
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: >0.05t-test, 2 sided
Secondary

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

Population: Intention-to-treat analysis was performed

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupTriglycerides/HDL RatioBaseline5.12 RatioStandard Deviation 2.84
Intervention GroupTriglycerides/HDL RatioChange from baseline at Week 12-0.02 RatioStandard Deviation 1.98
Intervention GroupTriglycerides/HDL RatioFinal5.1 RatioStandard Deviation 2.9
Control GroupTriglycerides/HDL RatioBaseline4.99 RatioStandard Deviation 2.13
Control GroupTriglycerides/HDL RatioChange from baseline at Week 12-0.74 RatioStandard Deviation 2.13
Control GroupTriglycerides/HDL RatioFinal4.25 RatioStandard Deviation 1.31
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: >0.05t-test, 2 sided
Secondary

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

Population: Intention-to-treat analysis was performed.

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupWaist CircumferenceWeek 496.5 cmStandard Deviation 7.08
Intervention GroupWaist CircumferenceWeek 896 cmStandard Deviation 7.33
Intervention GroupWaist CircumferenceBaseline96.7 cmStandard Deviation 7.49
Intervention GroupWaist CircumferenceFinal95.9 cmStandard Deviation 7.28
Intervention GroupWaist CircumferenceChange from baseline at Week 12-0.8 cmStandard Deviation 2.19
Control GroupWaist CircumferenceFinal102 cmStandard Deviation 12
Control GroupWaist CircumferenceChange from baseline at Week 12-1.38 cmStandard Deviation 4.11
Control GroupWaist CircumferenceBaseline103 cmStandard Deviation 13.1
Control GroupWaist CircumferenceWeek 8103 cmStandard Deviation 12
Control GroupWaist CircumferenceWeek 4103 cmStandard Deviation 11.7
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05t-test, 2 sided
p-value: >0.05ANOVA
p-value: >0.05ANOVA
Secondary

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

Population: We could not obtain the height from 1 subject from the cocoa group. Intention-to-treat analysis was performed.

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupWaist-to-Height RatioBaseline0.6 RatioStandard Deviation 0.04
Intervention GroupWaist-to-Height RatioWeek 80.6 RatioStandard Deviation 0.04
Intervention GroupWaist-to-Height RatioWeek 40.6 RatioStandard Deviation 0.04
Intervention GroupWaist-to-Height RatioFinal0.6 RatioStandard Deviation 0.04
Intervention GroupWaist-to-Height RatioChange from baseline at Week 12-0.00 RatioStandard Deviation 0.01
Control GroupWaist-to-Height RatioFinal0.63 RatioStandard Deviation 0.09
Control GroupWaist-to-Height RatioChange from baseline at Week 12-0.00 RatioStandard Deviation 0.02
Control GroupWaist-to-Height RatioBaseline0.64 RatioStandard Deviation 0.09
Control GroupWaist-to-Height RatioWeek 40.64 RatioStandard Deviation 0.08
Control GroupWaist-to-Height RatioWeek 80.64 RatioStandard Deviation 0.09
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05t-test, 2 sided
p-value: >0.05ANOVA
p-value: >0.05ANOVA
Secondary

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

Population: We could not obtain the weight measure from one participant of the intervention group.~Intention-to-treat analysis was performed.

ArmMeasureGroupValue (MEAN)Dispersion
Intervention GroupWeightBaseline73.5 kgStandard Deviation 14.1
Intervention GroupWeightWeek 874.1 kgStandard Deviation 14.7
Intervention GroupWeightWeek 474.4 kgStandard Deviation 14.8
Intervention GroupWeightFinal73.8 kgStandard Deviation 14.6
Intervention GroupWeightChange from baseline at Week 120.38 kgStandard Deviation 2.72
Control GroupWeightFinal82.4 kgStandard Deviation 13.9
Control GroupWeightChange from baseline at Week 12-0.42 kgStandard Deviation 2.18
Control GroupWeightBaseline82.8 kgStandard Deviation 13.8
Control GroupWeightWeek 482.5 kgStandard Deviation 13.9
Control GroupWeightWeek 883 kgStandard Deviation 13.7
Comparison: Comparing row Change from baseline at Week 12p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: >0.05ANOVA
p-value: >0.05ANOVA

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026