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Cardiovascular DiseasesLeguPlan_2NCT06700954

Effects of a Legume-rich Diet in the Context of the Planetary Health Diet Compared to a Western-oriented Dietary Pattern in Participants with Increased Cardiometabolic Risk

A study testing legume-rich Planetary Health Diet in people with Cardiovascular Diseases, run by University of Bonn at 1 site in Germany.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

The aim of the study is to systematically investigate the effects of a diet enriched with legumes in a dietary pattern approach (Planetary Health Diet) compared to a control diet low in legumes in older people with a risk phenotype for cardiovascular and neurodegenerative diseases. Read more about this study

Who is it for?
Ages 50 to 75 years
Conditions the study is for
Cardiovascular Diseases
What is being tested?
legume-rich Planetary Health Diet
Could I receive a placebo?
No, everyone receives an active treatment
How many people
100 participants
Where
1 siteGermany
Study dates
6 Jan 2025to 31 Dec 2025
Phase
Interventional
Are there results?
Not yet: the study is under way

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

Who may be able to join

  • written informed consent
  • Non-smoking
  • BMI: 27 - 34,9 kg/m2
  • Waist circumference (women ≥ 80 cm, men ≥ 94 cm)
  • Systolic blood pressure: ≥ 120 mmHg, diastolic blood pressure: ≥ 80 mmHg
  • At least one of the following criteria:
Show all 11Show fewer
  • Fasting triglycerides in serum: ≥ 150 mg/dL
  • Fasting LDL cholesterol in serum ≥160 mg/dL
  • Fasting HDL-Cholesterol in serum: women < 50 mg/dl, men < 40 mg/dL
  • Fasting glucose in plasma: ≥ 100 mg/dL
  • CRP in serum 0,2-3 mg/dL

Who cannot join

  • food intolerances and allergies (especially legumes)
  • Smoking
  • malabsorption syndromes
  • thyroid diseases
  • impaired renal function
  • chronic liver disease
Show all 16Show fewer
  • heart failure
  • myocardial infarction
  • insulin-dependent diabetes mellitus
  • chronic inflammatory diseases
  • tumors
  • anemia
  • immunosuppression
  • intake of supplements (e.g., fish oil)
  • Participation in another study
  • other exclusion criteria at the discretion of the physician/ investigator

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Sarah Egert, Prof PhD contact

+ 49 (0) 228 / 73 59 53

s.egert@uni-bonn.de

Germany1 site
  • Institute of Nutritional and Food Sciences, Nutrition Physiology

    Bonn, North Rhine-Westphalia, 53113

    Sarah Egert, Prof PhD, + 49 (0) 228/73 59 53, s.egert@uni-bonn.de

Other trials in Germany

About this study

Official title: Effects of a Legume-rich Diet in the Context of the Planetary Health Diet Compared to a Western-oriented Dietary Pattern in Women and Men At Increased Risk of Cardiovascular and Neurodegenerative Diseases

The aim of the study is to systematically investigate the effects of a diet enriched with legumes in a dietary pattern approach (Planetary Health Diet) compared to a control diet low in legumes in older people with a risk phenotype for cardiovascular and neurodegenerative diseases. For this purpose, a controlled, six-week nutritional intervention study will be carried out in a parallel design. A total of 100 subjects (aged 50 - 75 years) will be randomly assigned to one of two intervention groups: i) a legume-rich diet based on the Planetary Health Diet, with a focus on plant protein, ii) a diet based on the Western dietary pattern including animal protein sources (= control diet). The target variables include parameters of lipid, glucose and insulin metabolism as well as biomarkers of inflammation and endothelial activation, proteomics and neurodegeneration markers. Furthermore, pulse wave velocity is measured to assess vascular function and neuropsychological target variables (e.g. hunger, satiety) are recorded using questionnaires.

Read the detailed description

The aim of the study is to systematically investigate the effects of a diet enriched with legumes in the dietary pattern approach (Planetary Health Diet) compared to a control diet low in legumes in older people with a risk phenotype for cardiovascular and neurodegenerative diseases. For this purpose, a controlled, six-week nutritional intervention study will be carried out in a parallel design. A total of 100 subjects (aged 50 - 75 years) will be randomly assigned to one of two intervention groups: i) a legume-rich diet based on the Planetary Health Diet, with a focus on plant protein, ii) a diet based on the Western dietary pattern including animal protein sources (= control diet). The target variables include parameters of lipid, glucose and insulin metabolism as well as biomarkers of inflammation and endothelial activation, proteomics and neurodegeneration markers. Furthermore, pulse wave velocity is measured to assess vascular function and neuropsychological target variables (e.g. hunger, satiety) are recorded using questionnaires. The subjects come to the study center for examination before the start of the intervention (visit 1), after three weeks (mid-intervention, visit 2) and after six weeks (end of intervention, visit 3).

Being tested
legume-rich Planetary Health Diet, control diet based on Western Diet low in legumes
Medical subject headings
Cardiovascular Diseases

What participants receive

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

  • legume-rich Planetary Health DietOther

    legume-rich diet based on the Planetary Health Diet, with a focus on vegetable protein

  • control diet based on Western Diet low in legumesOther

    diet based on the Western dietary pattern including animal protein sources (= control diet)

Study groups in NCT06700954
Study groupRoleWhat they receive
legume-rich Planetary Health DietExperimentallegume-rich diet based on the Planetary Health Diet, with a focus on vegetable protein
Receives: Other: legume-rich Planetary Health Diet
control diet based on Western Diet low in legumesExperimentaldiet based on the Western dietary pattern including animal protein sources (= control diet)
Receives: Other: control diet based on Western Diet low in legumes

What is being measured

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

  1. Pameters of glucose metabolism in blood

    Glucose (mg/dL)

    Measured: postprandial period of 2 hours (t = 0,2) in week 1 and week 6 of intervention

Secondary outcomes (46)
  1. Parameters of glucose metabolism in blood

    Insulin (nmol/L)

    Measured: postprandial period of 2 hours (t = 0,2) in week 1 and week 6 of intervention

  2. Parameters of glucose metabolism in blood

    GLP-1 (pg/mL)

    Measured: postprandial period of 2 hours (t = 0,2) in week 1 and week 6 of intervention

  3. Parameters of glucose metabolism in blood

    Glucagon (pg/mL)

    Measured: postprandial period of 2 hours (t = 0,2) in week 1 and week 6 of intervention

  4. Parameters of glucose metabolism in blood

    HbA1c (%)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  5. Parameters of glucose metabolism in blood

    Fructosamine (µmol/l)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  6. Parameters of lipid metabolism in blood

    Triglycerides (mg/dL)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  7. Parameters of lipid metabolism in blood

    Total cholesterol (mg/dL)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  8. Parameters of lipid metabolism in blood

    LDL cholesterol (mg/dL)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  9. Parameters of lipid metabolism in blood

    HDL cholesterol (mg/dL)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  10. Parameters of lipid metabolism in blood

    Free fatty acids (mmol/L)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  11. Parameters of lipid metabolism in blood

    Lipoprotein(a) (mg/dL/nmol/L)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  12. Parameters of lipid metabolism in blood

    Apo A1 (g/L)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  13. Parameters of lipid metabolism in blood

    Apo B (g/L)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  14. Parameters of lipid metabolism in blood

    Fatty acid composition of serum phospholipids

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  15. Blood urea

    Urea in blood (mg/dL)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  16. Uric acid in blood

    Uric acid in blood (mg/dL)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  17. Parameters of endothelial function in blood

    ADMA (µmo/L)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  18. Parameters of inflammation in blood

    IL-6 (pg/mL)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  19. Parameters of Hunger and Satiety in blood

    Ghrelin (pg/mL)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  20. Endothelial function

    pulse wave velocity (m/s) with the vicorder device

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  21. Liver enzymes

    GGT (U/L)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  22. Liver enzymes

    ALT (U/L)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  23. Liver enzymes

    AST (U/L)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  24. Small blood count

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  25. Ferritin

    Ferritin (µg/L)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  26. Adiponectin

    Adiponectin (µg/ml)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  27. Parameters oft the antioxidant system

    vitamin C

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  28. Parameters oft the antioxidant system

    vitamin E

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  29. Parameters oft the antioxidant system

    ß-carotine

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  30. Parameters oft the antioxidant system

    B vitamins

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  31. trace elements

    iron

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  32. trace elements

    cupper

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  33. trace elements

    zinc

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  34. trace elements

    selen

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  35. Proteomics

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  36. Neurodegenerative markers

    GFAP

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  37. Neurodegenerative markers

    Aβ42

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  38. Neurodegenerative markers

    Aβ40

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  39. Neurodegenerative markers

    NF-L

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  40. Blood pressure

    Blood pressure (mmHg)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  41. REE

    REE (kcal/24h)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  42. Anthropometic measurements

    weight (kg)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  43. Anthropometic measurements

    fat mass (%)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  44. Anthropometic measurements

    waist circumference (cm)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  45. Neuropsychological parameters

    Assessment of memory via a validated neuropsychological questionaire (paper pencil, e.g. higher reproduction of memorised visual and verbal information = better memory; visual part: maximum points: 31 = all visual information memorised, minimum points: 0 = no visual information memorised; verbal part: maximum points: 24 = all verbal information memorised, minimum points: 0 = no verbal information memorised)

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

  46. Fecal fatty acid profile

    Measured: Fasting (t=0) in week 1 and week 6 of intervention

Timeline

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

  1. First posted22 Nov 2024
  2. Study start6 Jan 2025 (estimated)
  3. Primary completion31 Dec 2025 (estimated)
  4. Study completion31 Dec 2025 (estimated)

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
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
100 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06700954
Sponsor's protocol ID
BMEL: 2822EPS008 2
Acronym
LeguPlan_2
Status last verified
Nov 2024
First submitted
14 Nov 2024
Last updated
22 Nov 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing legume-rich Planetary Health Diet in people with Cardiovascular Diseases, run by University of Bonn 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 11 inclusion and 16 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: opening soon, as of the sponsor's last update on 22 Nov 2024. 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?

This study is still under way. Results are not available in the source record yet.

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

Contact Sarah Egert, Prof PhD (+ 49 (0) 228 / 73 59 53, s.egert@uni-bonn.de), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Pameters of glucose metabolism in blood (time frame: postprandial period of 2 hours (t = 0,2) in week 1 and week 6 of intervention). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 22 Nov 2024.

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