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Metabolic SyndromeCardioVegNCT03901183

Plant-based Nutrition for Patients With Cardiovascular Risk Factors

A study testing Plant-based Diet in people with Metabolic Syndrome and Cardiovascular Risk Factor, run by Charite University, Berlin, Germany at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Plant-based nutrition may have positive effects on chronic diseases such as cardiovascular or metabolic disorders. This study investigates the effects of a 8 week plant-based diet for patients with metabolic syndrom and cardiovascular risk factors. Read more about this study

Who is it for?
Ages 25 to 75 years
What is being tested?
Plant-based Diet
Could I receive a placebo?
No, everyone receives an active treatment
How many people
70 participants
Where
1 siteGermany
Study dates
27 May 2019to 11 Feb 2021
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 25 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Blood pressure > 140 mmHg systolic and/or > 90 mmHg diastolic, in case of medication also increased values > 140 mmHg systolic and/or > 90 mmHg diastolic needed
  • Adipositas with a waist circumference of > 94 cm in men and > 80 cm in women
  • A non-vegetarian diet in the past 6 months (at least 4x meat and/or meat products per week, at least 5x dairy products per week)
  • No fasting, no specific diet or change of diet in the last 2 months
  • Weight stable over the last two months (+- 3 kg)
  • Medication unchanged for at least one month
  • No fasting, no change of diet in the last 2 months

Who cannot join

  • Poor general condition
  • Coronary heart disease
  • Diabetes mellitus Type I
  • Cerebrovascular diseases
  • Severe mental illness
  • Severe acute or chronic comorbidity
Show all 20Show fewer
  • Pregnancy and lactation or planned pregnancy in the next 6 months
  • Eating disorder
  • Max. 2 beers 0,5l or 2 wines 0,2l per day
  • No alcohol abstinence 48 hours before blood samples possible
  • Max. 5 cigarettes/day
  • Medicine that affect weight
  • Antibiotics within the last 6 months
  • Major surgery <6 months prior to randomization
  • BMI > 40 kg/m2
  • Existing vegetarian or plant-based diet
  • Bariatric surgery (obesity surgery)
  • Simultaneous participation in another clinical trial
  • Participation in a clinical trial within the last 3 months prior to inclusion in the study
  • Lack of consent to participate in the study

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Charite University

    Berlin, 14109

Other trials in Germany

About this study

Official title: Plant-based Nutrition for Patients With Cardiovascular Risk Factors - a Randomized Controlled Trial

Plant-based nutrition may have positive effects on chronic diseases such as cardiovascular or metabolic disorders. This study investigates the effects of a 8 week plant-based diet for patients with metabolic syndrom and cardiovascular risk factors.

Being tested
Plant-based Diet
Keywords
Metabolic Syndrom, Plant-based Diet, Nutrition
Medical subject headings
Metabolic Syndrome, Overweight, Obesity, Essential Hypertension

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Plant-based DietOther

    Patients are guided to change their nutrition to a plant-based diet.

Study groups in NCT03901183
Study groupRoleWhat they receive
InterventionalExperimentalParticipants receive a 8 week nutritional counseling with weekly group meetings to establish a plant-based diet.
Receives: Other: Plant-based Diet
ControlNo interventionWaiting list. Participants receive no intervention during study period, equal intervention is offered after the end of study.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change of baseline Composite Score for Metabolic Syndrom (Standardizing Physiological Composite Risk Endpoints (SCORE)) at 2 months

    Composite score including waist wircumference, blood pressure, fasting blood glucose, tryglycerids, HDL-cholesterin Range 0-100, lower score meaning a better outcome

    Measured: Date of inclusion (baseline), after 8 weeks

Secondary outcomes (53)
  1. Bio-electrical Impedance Analysis (BIA)

    Estimation of the body composition via bio-electrical impedance analysis (body fat and visceral fat in %)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  2. Bio-electrical Impedance analysis (BIA)

    Estimation of the body composition via bio-electrical impedance analysis (muscle mass in kg)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  3. Change from baseline systolic blood pressure at 2 months

    Average of 24h measurement

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  4. Change from baseline diastolic blood pressure at 2 months

    Average of 24h measurement

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  5. Fasting glucose (mmol/l)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  6. Blood lipids

    Triglycerides (mmol/L), total cholesterol (mmol/L), LDL (mmol/L), HDL (mmol/L)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  7. Insulin (µU/ml)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  8. Glycated hemoglobin (HbA1c) (%)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  9. Fructosamin (µmol/l)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  10. Homeostatic model assessment (HOMA-IR)

    Index calculated from Insulin (µU/ml) x fasting glucose (mmol/l) / 22,5

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  11. Ferritin (µg/l)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  12. Liver enzymes

    Hepatic transaminases (GPT, GOT in U/L) and Gamma glutamyl transpeptidase (y-GT in U/L)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  13. Folic acid (ng/ml)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  14. Uric Acid (mg/dl)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  15. Complete Blood Count

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  16. Holotranscobalamin (pmol/L)

    Measured: Date of inclusion (baseline), after 16 weeks

  17. Trimethylamine N-oxide (mg/dl)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  18. Quality of Life questionnaire (WHO-5)

    Change from Baseline in the WHO-5, range from 0 to 100 % while higher values meaning a higher grade of well-being

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  19. Stress questionnaire (Cohen Perceived Stress Scale, CPSS)

    Change from Baseline in the CPSS, range from 0 to 4 in each item. Scores are obtained by reversing responses (e.g., 0 = 4, 1 = 3, 2 = 2, 3 = 1 \& 4 = 0) to the positively stated items and then summing across all scale items while higher values meaning a higher grade of perceived stress.

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  20. General Self-efficacy Short Scale (ASKU)

    Assessing full scale, range 3-15, higher score meaning a better outcome

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  21. Hospital Anxiety and Depression Scale (HADS)

    Assessing full scale, range 0-42, lower score meaning a better outcome

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  22. Medical Outcomes Study Short Form (MOS SF-12)

    Assessing full scale, range 0-100, higher score meaning a better outcome

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  23. Zerssen symptom list (B-LR and B-LR')

    Assessing full scale, range 20-80, higher score meaning a better outcome

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  24. Intuitive Eating Scale 2 (IES-2)

    Assessing full scale, range 23-115, higher score meaning a better outcome

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  25. Flourishing Scale (FS-D)

    Assessing full scale, range 8-56, higher score meaning a better outcome

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  26. International Physical Activity Questionnaire (IPAQ )

    MET minutes represent the amount of energy expended carrying out physical activity. To get a continuous variable score from the IPAQ (MET minutes a week) we will consider walking to be 3.3 METS, moderate physical activity to be 4 METS and vigorous physical activity to be 8 METS.

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  27. Body weight (kg)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  28. Body Mass Index (kg/m2)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  29. Waist circumference (cm)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  30. Wrist Circumference (cm)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  31. Ambulatory Blood Pressure Monitoring (ABPM)

    Measuring systolic and diastolic blood pressure in 20-minute-intervals for 24h with "Spacelabs" devices

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  32. Dietary Behaviour

    Nutritional history via dietary weight record (each for 3 days)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  33. Daily nutrition protocol

    Via the App 'Calorie Counter - Fddb Extender'

    Measured: Daily throughout the entire survey period

  34. Medication intake

    Name of medication and dosage

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  35. Cardio Vascular Risc Profile

    Cardio Vascular Risc in % with following scores: SCORE-Deutschland/PROCAM/arriba/WHO-ISH Charts/BEWAT-Score

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  36. Gut microbiome

    16S rRNA Sequencing / Shotgun Sequencing

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  37. Blood Oxygenization

    24h measuring by Biovotion Everion (upper arm)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  38. Skin Temperature

    24h measuring by Biovotion Everion and Empatica E4 devices (upper arm/wrist)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  39. Heart Rate (HR)

    24h measuring by Faros 180 (chest), Biovotion Everion and Empatica E4 (upper arm/wrist) devices

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  40. Heart Rate Variability (HRV)

    24h measuring by Faros 180 (chest), Biovotion Everion and Empatica E4 (upper arm/wrist) devices

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  41. Interbeat Interval (IBI)

    24h measuring by Biovotion Everion and Empatica E4 devices (upper arm/wrist)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  42. Respiration Rate

    24h measuring by Biovotion Everion device

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  43. Blood Volume Pulse

    24h measuring by Empatica E4 device (wrist)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  44. Electrodermal Activity (Galvanic Skin Response)

    24h measuring by Biovotion Everion device and Empatica E4 (upper arm/wrist) devices

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  45. Number of Steps per 24 hours

    24h measuring by Biovotion Everion device (upper arm)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  46. Sociodemographic Measurements

    Age, gender, education level, household income, employment status, marital status, language spoken, complete family history, current and previous illness and co-morbidities, and current medications

    Measured: Date of inclusion (baseline)

  47. Oral Health Qualitative Interviews

    using the German version of the "Oral Health Impact Profile" with 21 questions, score ranges from 0 to 21, high score Shows a low Quality of oral health, low score Shows a high Quality of life

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  48. Evaluation of inflammatory oral conditions

    bleeding index (gingival bleeding index, bleeding on probing) in percentage, ranges from 0 to 100 %, optimal is less then 15 %

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  49. Evaluation of teeth related conditions

    dental findings (attrition, bruxism, caries, dental implants, dentures, missing teeth, erosions, restorations (all classes))

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  50. Evaluation of Oral Fluids

    crevicular fluid rate, salivary flow (stimulated, unstimulated)

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  51. Evaluation of periodontal attachment level

    probing pocket depth, recessions, measuring in mm on 6 sites per tooth

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  52. Evaluation of oral hygiene

    Plaque Index in %, ranges from 0 to 100%, less then 15 % Shows an optimal oral hygiene

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

  53. Evaluation of periodontal status

    measuring with periodontal Screening index, ranges from 0 to 4, code 0 - oral health, 1-2 Gingivitis, 3-4 Periodontitis, additional findings as furcation involvement and loosening are documented

    Measured: Date of inclusion (baseline), after 8 weeks, after 16 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Apr 2019
  2. Study start27 May 2019
  3. Primary completion11 Feb 2021
  4. Study completion11 Feb 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
70 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03901183
Sponsor's protocol ID
CardioVeg
Acronym
CardioVeg
Status last verified
Sep 2022
First submitted
28 Mar 2019
Last updated
29 Sep 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Pappe CL, Lutzenberger S, Goebler K, Meier S, Jeitler M, Michalsen A, Dommisch H. Effect of a Whole-Food Plant-Based Diet on Periodontal Parameters in Patients With Cardiovascular Risk Factors: A Secondary Sub-Analysis of a Randomized Clinical Trial. J Clin Periodontol. 2025 Jan;52(1):125-136. doi: 10.1111/jcpe.14066. Epub 2024 Oct 14.

    PubMed 39402877

Questions about this trial

What is this clinical trial studying?

A study testing Plant-based Diet in people with Metabolic Syndrome and Cardiovascular Risk Factor, run by Charite University, Berlin, Germany at 1 site in Germany.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 20 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Sep 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change of baseline Composite Score for Metabolic Syndrom (Standardizing Physiological Composite Risk Endpoints (SCORE)) at 2 months (time frame: Date of inclusion (baseline), after 8 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03901183, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Sep 2022.

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