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DietNCT03856762

Dietary Pattern and Metabolic Health Study

A study testing traditional Jiangnan diet, Mediterranean diet and Current Shanghai diet in people with Diet and PreDiabetes, run by Chinese Academy of Sciences at 1 site in China.

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

This is a single-blind, randomized trial. Based on inclusion and exclusion criteria, 253 eligible volunteers, who were 25-60 years old, with overweight/obese and prediabetes are assigned to one of three dietary patterns: healthy Jiangnan, restricted-calorie; Mediterranean, restricted-calorie; or typical Shanghai… Read more about this study

Who is it for?
Ages 25 to 60 years
Conditions the study is for
Diet, PreDiabetes, Weight Loss
What is being tested?
traditional Jiangnan diet, Mediterranean diet and Current Shanghai diet
Could I receive a placebo?
No, everyone receives an active treatment
How many people
253 participants
Where
1 siteChina
Study dates
1 Mar 2019to 30 Sep 2019
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 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Age between 25 to 60 years old
  • 24.0 ≤ BMI ≤ 40.0 kg/m2
  • fasting glucose≥5.6 mmol/L

Who cannot join

  • Diabetes or use of insulin or other hypoglycemic medications
  • Pregnancy or lactation
  • Trying to change body weight in the way
  • Use of antibiotic in the preceding 3 months for 3-serial days
  • Obvious changes of medication in the preceding 3 months
  • History of drug or alcohol abuse or other substance abuse; (Alcohol abuse is defined as regular alcohol consumption > 40 g/day)
Show all 18Show fewer
  • Any severe liver or renal diseases
  • Severe gastrointestinal diseases
  • Surgical events preceding 1 year (except appendicitis or hernia surgery)
  • Severe cardiovascular or cerebrovascular diseases or phase three hypertension
  • Implantation of heart stent
  • Cancer or receiving radiotherapy and chemotherapy within 5 years
  • Hyperthyroidism or hypothyroidism
  • Suffering from hepatitis B, tuberculosis, AIDS and other infectious diseases
  • Any mental disorders or current use of antidepressants
  • Food contraindications or allergies to foods included in the intervention
  • Cognitive disability
  • Participated in any other clinical studies within 3 months

Trial locations and contacts

1 site in 1 country.

China1 site
  • Ruijin hospital; SAIC FAW-Volkswagen Automobile Co

    Shanghai, Shanghai Municipality, 200031

Other trials in China

About this study

This is a single-blind, randomized trial. Based on inclusion and exclusion criteria, 253 eligible volunteers, who were 25-60 years old, with overweight/obese and prediabetes are assigned to one of three dietary patterns: healthy Jiangnan, restricted-calorie; Mediterranean, restricted-calorie; or typical Shanghai, restricted-calorie.

The Shanghai Institutes for Biological Sciences of the Chinese Academy of Sciences(CAS) cooperated with Ruijin Hospital to conduct the study which is funded by the CAS. The study' protocol has been approved by the Ethics Committee of Shanghai Institutes for Biological Sciences. The main purpose of this study is to clarify: the efficacy of traditional Jiangnan dietary pattern, Mediterranean dietary pattern and the current Shanghai dietary pattern in improving overweight/obesity, glucose homeostasis, other cardiovascular metabolic risk factors and their main regulatory factors in Chinese.

Read the detailed description

Nowadays, the prevalence of type 2 diabetes and its related metabolic diseases is rapidly rising in China. Obesity and early pathoglycemia will increase the risk of diabetes and related cardiovascular diseases severely. Therefore, more effective methods and strategies need to be found to reduce body weight, improve pathoglycemia, and control the development of this high-risk group to type 2 diabetes. As the most popular healthy dietary pattern in the world, the role of Mediterranean diet in the prevention of type 2 diabetes remains unclear. In addition, the protective role of Chinese traditional dietary pattern with lots of plant-based foods in the region of Jiangnan has not been clarified through intervention studies. Therefore, it is urgent to explore the feasibility and effectiveness of traditional Jiangnan diet and Mediterranean diet through dietary intervention studies in Chinese.

The effectiveness of healthy dietary patterns can be further enhanced by limiting dietary intake to achieve weight loss. Recently, the Spainish study found that energy-restricted Mediterranean diet + physical activity + behavioral interventions are more conducive to weight loss in overweight/obesity with prediabetes/type 2 diabetes compared with conventional Mediterranean dietary interventions. The 2019 Diabetes Management Standard of American Diabetes Association re-emphasizes the importance of moderate weight loss for delaying the progression of type 2 diabetes, and recommends that a reduction in dietary intake is 500-750 kcal/day to reach 1-2 pounds per week is suitable. At the same time, the American Clinical Endocrine Society and the American Endocrine Society have also updated the 2019 Comprehensive Management Guide for Type 2 Diabetes. The new guidelines point out that all overweight or obese patients with prediabetes or type 2 diabetes should pay attention to weight loss. And weight loss treatment should include specific lifestyle interventions, including calorie-restricted healthy dietary plan, physical activity and behavioral interventions.

Dietary intervention studies in the past mainly relied on dietary education. However, this study now provides a healthy and reasonable dietary model for the Chinese population through lifestyle intervention to clarify the improvement of cardiovascular metabolic risk such as overweight/obesity, glucose homeostasis, and the scientific basis for establishing a healthy dietary model which is suitable for Chinese population.

Being tested
traditional Jiangnan diet, Mediterranean diet, Current Shanghai diet
Medical subject headings
Prediabetic State, Weight Loss

What participants receive

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

  • traditional Jiangnan dietDietary supplement

    traditional Jiangnan diet supplement from Monday to Friday for six months

  • Mediterranean dietDietary supplement

    Mediterranean diet supplement from Monday to Friday for six months

  • Current Shanghai dietDietary supplement

    current Shanghai diet supplement from Monday to Friday for six months

Study groups in NCT03856762
Study groupRoleWhat they receive
Traditional Jiangnan dietExperimentalSubjects will be supplied with traditional Jiangnan diet and APP-based behavioral modification
Receives: Dietary Supplement: traditional Jiangnan diet
Mediterranean dietExperimentalSubjects will be supplied with Mediterranean diet and APP-based behavioral modification
Receives: Dietary Supplement: Mediterranean diet
Current Shanghai dietExperimentalSubjects will be supplied with current Shanghai diet and APP-based behavioral modification
Receives: Dietary Supplement: Current Shanghai diet

What is being measured

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

  1. Body weight

    Body weight will be assessed by electronic scale (Seca-882; ScalesGalore) during each visit and Wi-Fi scale at home

    Measured: 6 months

  2. Glucose homeostasis

    Glucose homeostasis will be assessed by Continuous Glucose Monitoring(FreeStyle Libre)

    Measured: 6 months

  3. Glucose

    Glucose will be assessed by oral glucose tolerance test

    Measured: 6 months

Secondary outcomes (7)
  1. Abdominal fat

    Abdominal fat will be assessed using Magnetic Resonance Imaging

    Measured: 6 months

  2. Blood pressure

    Both systolic pressure and diastolic pressure will be assessed using electronic blood pressure monitor (Omron HEM-7000)

    Measured: 6 months

  3. Total cholesterol

    Total cholesterol will be assessed using an automatic biochemical analyzer

    Measured: 6 months

  4. Triglyceride

    Triglyceride will be assessed using an automatic biochemical analyzer

    Measured: 6 months

  5. LDL-C

    LDL-C will be assessed using an automatic biochemical analyzer

    Measured: 6 months

  6. HDL-C

    HDL-C will be assessed using an automatic biochemical analyzer

    Measured: 6 months

  7. HbA1c

    HbA1c will be assessed using liquid Chromatograph Mass Spectrometer

    Measured: 6 months

Timeline

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

  1. First posted27 Feb 2019
  2. Study start1 Mar 2019
  3. Primary completion30 Sep 2019
  4. Study completion30 Sep 2019

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
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
253 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03856762
Sponsor's protocol ID
CAS-HDP-201902
Status last verified
Aug 2020
First submitted
21 Feb 2019
Last updated
26 Aug 2020
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Ni M, Chen Y, Gu W, Zhang Y, Xu M, Gu Y, Chen Y, Zhu Y, Wang X, Luo Y, Xu Y, Lin X, Zeng YA, Liu R, Wang J. Association Between Circulating Gremlin 2 and beta-Cell Function Among Participants With Prediabetes and Type 2 Diabetes. J Diabetes. 2025 Apr;17(4):e70090. doi: 10.1111/1753-0407.70090.

    PubMed 40270326
  • Lin H, Wang Q, Gao A, Sun Y, Shen C, Chen Y, Wang Z, Xu X, Ni M, Chen Y, Zhang J, Luo Y, Lin X, Bi Y, Ning G, Wang W, Hong J, Gu W, Wang J, Liu R. Enteropancreatic hormone changes in caloric-restricted diet interventions associate with post-intervention weight maintenance. Clin Nutr. 2024 Dec;43(12):5-14. doi: 10.1016/j.clnu.2024.10.004. Epub 2024 Oct 5.

    PubMed 39418916
  • Luo Y, Wang J, Sun L, Gu W, Zong G, Song B, Shen C, Zhou P, Chen Y, Wu Y, Lin H, Zheng H, Ni M, Yang X, Chen Y, Xu X, Zhang J, Shi J, Zhang R, Hu J, Hou H, Lu L, Xu X, Liang L, Liu R, Liu X, Li H, Hong J, Wang W, Lin X, Ning G. Isocaloric-restricted Mediterranean Diet and Chinese Diets High or Low in Plants in Adults With Prediabetes. J Clin Endocrinol Metab. 2022 Jul 14;107(8):2216-2227. doi: 10.1210/clinem/dgac303.

    PubMed 35579171

Questions about this trial

What is this clinical trial studying?

A study testing traditional Jiangnan diet, Mediterranean diet and Current Shanghai diet in people with Diet and PreDiabetes, run by Chinese Academy of Sciences at 1 site in China.

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 3 inclusion and 18 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 26 Aug 2020. 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 China. 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?

Body weight (time frame: 6 months). The study lists 3 primary outcomes in all. 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 NCT03856762, which also lists 3 linked publications.

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 26 Aug 2020.

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