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Cardiovascular DiseasesNCT04064281

The Healthy Cantonese Diet on Cardiometabolic Syndrome

A study testing the healthy Cantonese diet and the typical Cantonese diet in people with Cardiovascular Diseases and Cardiovascular Risk Factor, run by Sun Yat-sen University.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The DASH diet (Dietary Approaches to Stop Hypertension) have been proven to lower risk of cardiovascular diseases. But the DASH diet is inconsistent with Chinese dietary pattern. Read more about this study

Who is it for?
Ages 25 to 75 years
What is being tested?
the healthy Cantonese diet and the typical Cantonese diet
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
90 participants
Where
No sites listed yet
Study dates
1 Sep 2019to 31 Dec 2022
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

  • Age 25-75 years old, male or female;
  • have lived in this community for the past six months, and have no plans to move out or go out in the next three months;
  • the systolic blood pressure is within 130-159mmHg regardless of medication.
  • maintaining the current medication (mainly drugs for hypertension, diabetes or hyperlipidemia) throughout the research period, with the category and dose unchanged;
  • the number of test meal consumed is no less than 18;
  • community feeding mode: eat a meal at least once a day at the research center (preferably lunch or dinner); or home delivery mode: upload meal pictures for three meals every day, and eat a meal and have physical examination at the research center at least once a week;
  • sign the informed consent form.

Who cannot join

  • fasting blood glucose ≥10.0mmol/L;
  • total cholesterol ≥7.2mmol/L;
  • injected inulin within a month;
  • unwilling or unable to change the original dietary pattern, or have special dietary needs (such as vegetarians);
  • alcoholism;
  • BMI ≥30kg/m^2, or losing weight currently;
Show all 14Show fewer
  • have acute cardiovascular and cerebrovascular events occurred in the past six months;
  • have a history of chronic kidney disease, intestinal irritation or asthma;
  • women who have been/are preparing for pregnancy or lactation;
  • in combination with other serious diseases such as cancer, chronic heart failure, severe depression or other mental disorders, long-term bedridden or unable to move freely;
  • have a history of common food allergies (eggs, seafood, peanuts, etc.);
  • have undergone gastrointestinal surgery;
  • currently suffering from acute phase of diseases such as respiratory infections, fever, severe diarrhea;
  • have deaf-mutism, dementia, unable to communicate properly.

Trial locations and contacts

No sites are listed yet.

About this study

Official title: Effect of the Healthy Cantonese Diet on Cardiometabolic Syndrome in Chinese Adults

The DASH diet (Dietary Approaches to Stop Hypertension) have been proven to lower risk of cardiovascular diseases. But the DASH diet is inconsistent with Chinese dietary pattern. In this study, based on the typical Cantonese diet, the healthy Cantonese diet is developed according to the DASH diet and the balanced dietary pattern of the Chinese Dietary Guidelines 2016. The randomized control trial is designed to investigate whether the healthy Cantonese diet has benefit to blood pressure, blood lipid, blood glucose and other cardiometabolic biomarkers among adults with cardiometabolic syndrome in Guangdong, China.

Being tested
the healthy Cantonese diet, the typical Cantonese diet
Keywords
DASH, diet, trial, cardiovascular disease, blood pressure
Medical subject headings
Cardiovascular Diseases, Hypertension, Hyperlipidemias, Hyperglycemia

What participants receive

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

  • the healthy Cantonese dietOther

    After a 1-week run-in period, the intervention group will eat the healthy Cantonese diet for 4 consecutive weeks. Free meals will be provided 3 times a day (breakfast, lunch, dinner). The actually intake of every meal for all subjects will be recorded to estimate their nutrients intake. All subjects will be advised to avoid eating other food, but they should inform researchers of what they eat if they eat food that we will not provide.

  • the typical Cantonese dietOther

    After a 1-week run-in period, the control group will still eat the typical Cantonese diet for 4 consecutive weeks. Free meals will be provided 3 times a day (breakfast, lunch, dinner). The actually intake of every meal for all subjects will be recorded to estimate their nutrients intake. All subjects will be advised to avoid eating other food, but they should inform researchers of what they eat if they eat food that we will not provide.

Study groups in NCT04064281
Study groupRoleWhat they receive
the healthy Cantonese dietExperimentalBased on the typical Cantonese diet, the healthy Cantonese diet is developed according to the DASH diet and the balanced dietary pattern of the Chinese Dietary Guidelines 2016. In this diet, the main nutrients, dietary fiber, sodium, calcium, magnesium and potassium are set to achieve the healthy goal. Compared with the typical Cantonese diet, the healthy Cantonese diet is increased in fruit, vegetables, low-fat dairy products, whole grains, nuts and seeds, and reduced in salt, oil and sweets.
Receives: Other: the healthy Cantonese diet
the typical Cantonese dietPlacebo comparatorThe typical Cantonese diet is a diet of what many Cantonese eat. In this diet, the main nutrients, dietary fiber, sodium, calcium, magnesium and potassium are set at the average dietary intake levels in Guangdong.
Receives: Other: the typical Cantonese diet

What is being measured

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

  1. Metabolic syndrome score

    Changes of metabolic syndrome score in healthy Cantonese diet compared with changes of typical Cantonese diet. Metabolic syndrome score will be derived by standardizing and then summing the following continuously distributed indices of adiposity (waist circumference) to create a z score: hypertension (the average of systolic blood pressure and diastolic blood pressure); hyperglycaemia (fasting plasma glucose); insulin resistance (fasting insulin); fasting HDL-cholesterol × -1; and fasting triacylglycerol z score.

    Measured: before and after 4-week intervention

  2. Systolic blood pressure and diastolic blood pressure

    Changes of systolic blood pressure and diastolic blood pressure in healthy Cantonese diet compared with changes of typical Cantonese diet. Blood pressure will be measured by trained investigator at baseline, week 1, week 2, week 3 and week 4, and systolic blood pressure and diastolic blood pressure will be recorded.

    Measured: before and after 4-week intervention

  3. Blood lipid profile

    Changes of blood lipid profile in healthy Cantonese diet compared with changes of typical Cantonese diet. Blood lipid profile (total cholesterol, TC; triglyceride, TG; LDL cholesterol, LDLc; HDL cholesterol, HDLc) will be tested by a validated biomedical analyses laboratory using vein serum at baseline and week 4.

    Measured: before and after 4-week intervention

  4. Glucose metabolism

    Changes of glucose metabolism in healthy Cantonese diet compared with changes of typical Cantonese diet. Glucose metabolism (fasting plasma glucose and fasting insulin) will be tested by a validated biomedical analyses laboratory using vein serum at baseline and week 4 and insulin resistance index (HOMA-IR) will be calculated by [fasting insulin (mU/L) × fasting plasma glucose (mmol/L) ]/22.5.

    Measured: before and after 4-week intervention

Secondary outcomes (10)
  1. Blood biochemical marker

    Changes of blood biochemical marker in healthy Cantonese diet compared with changes of typical Cantonese diet. Blood biochemical marker (calcium, potassium, sodium, magnesium and phosphorus in mmol/L; uric acid in μmol/L) will be tested by a validated biomedical analyses laboratory using vein serum at baseline and week 4.

    Measured: before and after 4-week intervention

  2. Urinary sodium and potassium

    Changes of urinary sodium and potassium in healthy Cantonese diet compared with changes of typical Cantonese diet. Urinary sodium and potassium will be tested by a validated biomedical analyses laboratory using morning urine at baseline and week 4.

    Measured: before and after 4-week intervention

  3. Intestinal microbiota composition

    Changes of intestinal microbiota composition in healthy Cantonese diet compared with changes of typical Cantonese diet.

    Measured: before and after 4-week intervention

  4. Gut microbial gene richness

    Changes of gut microbial gene richness in healthy Cantonese diet compared with changes of typical Cantonese diet.

    Measured: before and after 4-week intervention

  5. Inflammatory biomarkers

    Changes of inflammatory biomarkers in healthy Cantonese diet compared with changes of typical Cantonese diet. Inflammatory biomarkers (CRP in mg/L; Tumor TNF-α and IL-6 in ng/L) will be tested by a validated biomedical analyses laboratory using vein serum at baseline and week 4.

    Measured: before and after 4-week intervention

  6. Cardiopulmonary function

    Changes of cardiopulmonary function in healthy Cantonese diet compared with changes of typical Cantonese diet. Cardiopulmonary function will be measured by cardiopulmonary exercise testing using CORTEX MetaLyzer 3B at baseline and week 4.

    Measured: before and after 4-week intervention

  7. Endothelial function

    Changes of endothelial function in healthy Cantonese diet compared with changes of typical Cantonese diet. Flow-mediated dilatation (FMD) will be assessed to evaluate endothelial function by using UNEX EF38G at baseline and week 4.

    Measured: before and after 4-week intervention

  8. Body composition

    Changes of body composition in healthy Cantonese diet compared with changes of typical Cantonese diet. Body composition will be tested by using dual energy X-ray absorptiometry at baseline and week 4.

    Measured: before and after 4-week intervention

  9. Body mass index (BMI)

    Height in meters and weight in kilograms will be combined to report body mass index (BMI) in kg/m^2.

    Measured: before and after 4-week intervention

  10. Ratio of waist to hip circumference (WHR)

    Waist circumference in centimeters and hip circumference in centimeters will be combined to report ratio of waist to hip circumference (WHR).

    Measured: before and after 4-week intervention

Timeline

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

  1. First posted21 Aug 2019
  2. Study start1 Sep 2019 (estimated)
  3. Primary completion31 Dec 2021 (estimated)
  4. Study completion31 Dec 2022 (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
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Model description
All subjects will enter 1-week run-in feeding period during which they will eat the control diet. After a 1-week run-in period, subjects will be randomly divided into the intervention group and the control group, stratified by gender. The two groups will eat their assigned diet for 4 consecutive weeks.
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
90 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04064281
Sponsor's protocol ID
CC-2019-03
Status last verified
Aug 2019
First submitted
12 Aug 2019
Last updated
21 Aug 2019
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing the healthy Cantonese diet and the typical Cantonese diet in people with Cardiovascular Diseases and Cardiovascular Risk Factor, run by Sun Yat-sen University.

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 14 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: status not confirmed, as of the sponsor's last update on 21 Aug 2019. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. 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?

Results are not available in the source record.

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

Contact Huilian Zhu, professor (+86 20 87331811, zhuhl@mail.sysu.edu.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Metabolic syndrome score (time frame: before and after 4-week intervention). The study lists 4 primary outcomes in all. 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 21 Aug 2019.

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The Healthy Cantonese Diet on Cardiometabolic Syndrome | AzTrials