ClinicalTrials.gg
RecruitingNCT07372729Updated Oct 29, 2026

Smartwatch-based Intervention for Cardiovascular Health (SWITCH)

An interventional study of Smartwatch-Based Multi-Faceted Behavioral Intervention Model Led by Exercise and Dietary Interventions, Supported by Primary Medical Staff, Along with the Distribution of Health Education Manuals and Face-to-face health education sessions in Overweight , Obesity, Prediabetes and High-normal Blood Pressure, sponsored by Beijing Anzhen Hospital. Recruiting at 3 sites in China. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-10-29.

Primary conditionObesityRegistry: OverweightReclassifiedWhy we changed it
Registry
Overweight — the first condition term the registry derived for this study.
ClinicalTrials.gg
Obesity
Why
  1. The study's listed conditions name Obesity, a narrower term within Overweight.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Beijing Anzhen Hospital · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Started Mar 2026; still recruiting 7 months later.
Updated Oct 29, 2026Primary completion movedStudy completion moved+2 moreGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
1,400
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study aims to employ a cluster randomized controlled trial to evaluate the effectiveness of an mHealth-Based Multi-faceted Cardiovascular Health Intervention Model among metabolically at-risk people with overweight/obesity, thereby providing theoretical foundations and practical guidance for the prevention and management of this population.

Read the detailed description

This study plans to evaluate the effectiveness of an mHealth-Based Multi-faceted Cardiovascular Health Intervention Model among metabolically at-risk people with overweight/obesity through a cluster randomized controlled trial. The study is designed as a prospective, multicenter, parallel-group, open-label cluster randomized controlled trial. The objective is to compare the effects of a comprehensive behavioral intervention model versus usual care on improving cardiovascular health among community-dwelling individuals who are overweight/obese and have at least one of the following conditions: high-normal blood pressure, prediabetes, or borderline elevated blood lipids. The trial plans to include approximately 40 clusters across three regions (covering both urban and rural areas), with an expected recruitment of more than 35 eligible participants per cluster, resulting in a total sample size of around 1,400 participants. Participants in the intervention group will receive a comprehensive behavioral intervention during the intensive phase (first 6 months), led by smartwatches and a WeChat mini-program (WMP), supported by primary healthcare providers and an integrated management platform, along with face-to-face health education. During the maintenance phase (subsequent 6 months), they will receive only self-management support via smartwatches and the , supplemented by face-to-face health education. Participants in the control group will receive only face-to-face health education throughout the study period. All participants will undergo follow-up assessments at 3, 6 and 12 months from baseline. The primary outcome is the change in Life's Essential 8 (LE8) from baseline to 6 months post-intervention.The secondary outcomes include: (1) the change in LE8 from baseline to 3 months and 12 months, respectively, and (2) the change in each of the eight LE8 components (diet, physical activity, smoking, sleep, BMI, blood lipids, blood glucose and BP) from baseline to 3, 6 and 12 months.

02

Conditions studied

  • Overweight , Obesity
  • Prediabetes
  • High-normal Blood Pressure
  • Borderline Elevated Blood Lipids

Browse trials for

03

In context

Obesity Reclassified

11,522 studies on the registry are indexed under Obesity; 2,033 are open to participants now.

This study's planned enrollment of 1,400 is above the median of 67 across 9,006 interventional studies indexed under Obesity.

Browse Obesity studies →

Lead sponsor

Beijing Anzhen Hospital is the lead sponsor of 192 studies on the registry; 102 are open to participants now.

Compared within Obesity, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Overweight. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

The criteria were revised on the registry on Oct 29, 2026. See what changed

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Age >= 18 years, no gender restriction;
  2. Overweight and obesity: (BMI) 24.0-32.4 kg/m\^2, or waist circumference >= 90 cm for males and >= 85 cm for females;
  3. Presence of at least one metabolic high-risk state among high-normal blood pressure, prediabetes, or borderline elevated blood lipids, and without a diagnosis of hypertension, diabetes mellitus, or dyslipidemia:

(1) High-normal BP: Systolic blood pressure (SBP) 120-139 mmHg and/or diastolic blood pressure (DBP) 80-89 mmHg, without regular use of antihypertensive medication in the past month; (2) Prediabetes: Fasting blood glucose (FBG) 6.1-6.9 mmol/L, or (HbA1c) 5.7%-6.4%, without regular use of hypoglycemic medication in the past month; (3) Borderline elevated blood lipids: Total cholesterol (TC) 5.2-6.1 mmol/L, or low-density lipoprotein cholesterol (LDL-C) 3.4-4.0 mmol/L, or triglycerides (TG) 1.7-2.2 mmol/L, or non-high-density lipoprotein cholesterol (non-HDL-C) 4.1-4.8 mmol/L, without regular use of lipid-lowering medication in the past month; 4. Local permanent residents who will reside in the area for at least 12 month after enrollment; 5. Have basic reading, writing, and comprehension abilities; proficient in using internet-connected smartphones; able to independently complete basic operations of the application; 6. Written provided.

Exclusion criteria

Exclusion Criteria:

  1. Secondary obesity diagnosed by doctors in secondary or higher-level medical institutions;
  2. Cardiovascular and cerebrovascular diseases, including myocardial infarction, stroke, heart failure, arrhythmia; or having received coronary intervention therapy, cardiac surgery, etc.; or with a 10-year high risk of cardiovascular disease;
  3. Diseases seriously affecting survival, such as malignant tumors, AIDS, hepatic and renal failure;
  4. Pregnancy, lactation period, or women who may become pregnant within one year;
  5. History of severe neuropsychiatric diseases with potential cognitive or communication impairments, such as dementia, Alzheimer's disease, Parkinson's syndrome;
  6. Individuals with limited daily mobility;
  7. Individuals undergoing or planning to receive weight loss through surgery, medication, or other methods;
  8. Currently participating in other lifestyle intervention-related trials.
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
1,400 participants (estimated)

Study arms

  • Experimental
    Smartwatch-Based Comprehensive Intervention

    Participants receive mHealth-based multi-faceted behavioral intervention via a closed-loop management pathway formed by the intervention tools of "smartwatch - mobile phone - data interaction and processing center - WeChat mini-program (WMP)".

    Behavioral: Smartwatch-Based Multi-Faceted Behavioral Intervention Model Led by Exercise and Dietary Interventions, Supported by Primary Medical Staff, Along with the Distribution of Health Education Manuals

  • Active comparator
    Usual Care

    Participants in the control group will receive only face-to-face health education sessions.

    Behavioral: Face-to-face health education sessions

Interventions

  • BehavioralSmartwatch-Based Multi-Faceted Behavioral Intervention Model Led by Exercise and Dietary Interventions, Supported by Primary Medical Staff, Along with the Distribution of Health Education Manuals

    The intervention model integrates multiple functions including data collection, intelligent analysis, and personalized intervention, and delivers targeted management for the target population. Among these, the intervention content includes the smartwatch-based comprehensive behavioral intervention model adopted in the model construction phase; for metabolically at-risk people with overweight/obesity, a customized combination of implementation strategies is provided. Intervention measures include smartwatch-based indicator monitoring and risk warning, diet and exercise reporting, monitoring, and goal setting/planning, community interaction, collaborative management by medical staff and family members.In addition, routine health education will be provided during face-to-face visits at baseline, 3 months, and 6 months.

  • BehavioralFace-to-face health education sessions

    At baseline, 3 months, and 6 months, participants will attend follow-up visits at primary healthcare institutions in the project areas and receive usual care based on guideline-recommended health education manuals, which provide comprehensive lifestyle intervention advice.

06

What researchers measure

Primary outcomes

  1. Change in Life's Essential 8 risk score

    The primary outcome is the change in Life's Essential 8 (LE8) from baseline to 6 months post-intervention. The Life's Essential 8 (LE8) is a cardiovascular health score that uses a 0-100 scale. The score is calculated based on a participant's adherence to eight healthy lifestyle components: diet, physical activity, smoking habits, body mass index, non-HDL cholesterol, blood sugar, blood pressure, and sleep. Each component has scoring algorithm ranging from 0 to 100 points, allowing generation of a composite cardiovascular health score (the unweighted average of all components) that also varies from 0 to 100 points. 0 will indicate the lowest cardiovascular health scores and 100 will indicate the highest cardiovascular health scores.

    Time frame: Baseline and 6 months after intervention

Secondary outcomes

  1. Blood pressure (Individual Life's Essential 8 components)

    Changes in the individual risk factors of Life's Essential 8 (LE8), including changes in blood pressure (both systolic and diastolic), will be assessed at baseline, 3 months, 6 months, and 12 months. Data will be derived from the Electronic Data Capture (EDC) system. For the primary outcome composite score: 100 points: \<120/\<80 mm Hg; 0 points: ≥160 mm Hg or ≥100 mm Hg.

    Time frame: Baseline and 3 months after intervention; Baseline and 6 months after intervention; Baseline and 12 months after intervention

  2. non-HDL cholesterol(Individual Life's Essential 8 components)

    Changes in the individual risk factors of Life's Essential 8, including changes in non-HDL cholesterol, will be assessed at baseline, 3 months, 6 months, and 12 months after intervention. Data will be derived from the Electronic Data Capture (EDC) system. For the primary outcome composite score: 100 points: \<3.36 mmol/L; 0 points: ≥5.69 mmol/L.

    Time frame: Baseline and 3 months after intervention; Baseline and 6 months after intervention; Baseline and 12 months after intervention

  3. Blood glucose (Individual Life's Essential 8 components)

    Changes in the individual risk factors of Life's Essential 8, including changes in blood glucose, will be assessed at baseline, 3 months, 6 months, and 12 months after intervention. Data will be derived from the Electronic Data Capture (EDC) system. For the primary outcome composite score: 100 points: No history of diabetes and hemoglobin A1c \<5.7%; 0 points: Diabetes with hemoglobin A1c ≥10.0%

    Time frame: Baseline and 3 months after intervention; Baseline and 6 months after intervention; Baseline and 12 months after intervention

  4. Body Mass Index (Individual Life's Essential 8 components)

    Changes in the individual risk factors of Life's Essential 8, including changes in body mass index, will be assessed at baseline, 3 months, 6 months, and 12 months after intervention. Data will be derived from the Electronic Data Capture (EDC) system. For the primary outcome composite score: 100 points: \<23 kg/m²; 0 points: ≥35 kg/m².

    Time frame: Baseline and 3 months after intervention; Baseline and 6 months after intervention; Baseline and 12 months after intervention

  5. Physical activity (Individual Life's Essential 8 components)

    Changes in the individual risk factors of Life's Essential 8, including changes in physical activity, will be assessed at baseline, 3 months, 6 months, and 12 months after intervention. Data will be derived from the Electronic Data Capture (EDC). For the primary outcome composite score: 100 points: ≥150 minutes of moderate or vigorous activities per week; 0 points: 0 minutes.

    Time frame: Baseline and 3 months after intervention; Baseline and 6 months after intervention; Baseline and 12 months after intervention

  6. Sleep (Individual Life's Essential 8 components)

    Changes in the individual risk factors of Life's Essential 8, including changes in sleep, will be assessed at baseline, 3 months, 6 months, and 12 months after intervention. Data will be derived from the Electronic Data Capture (EDC) system. For the primary outcome composite score: 100 points: 7-\<9 hours of sleep per night; 0 points: \<4 hours of sleep per night.

    Time frame: Baseline and 3 months after intervention; Baseline and 6 months after intervention; Baseline and 12 months after intervention

  7. Smoking habits (Individual Life's Essential 8 components)

    Changes in the individual risk factors of Life's Essential 8, including changes in smoking habits, will be assessed at baseline, 3 months, 6 months, and 12 months after intervention. Data will be derived from the Electronic Data Capture (EDC) system. For the primary outcome composite score: 100 points: Never smoker; 0 points: Current smoker.

    Time frame: Baseline and 3 months after intervention; Baseline and 6 months after intervention; Baseline and 12 months after intervention

  8. Health diet pattern (Individual Life's Essential 8 components)

    Changes in the individual risk factors of Life's Essential 8, including changes in diet patterns, will be assessed at baseline, 3 months, 6 months, and 12 months after intervention. Data will be derived from the Electronic Data Capture (EDC) system. For the primary outcome composite score: 100 points: DASH diet score of 8; 0 points: DASH diet score of 0 to 1.

    Time frame: Baseline and 3 months after intervention; Baseline and 6 months after intervention; Baseline and 12 months after intervention

  9. Change in Life's Essential 8 risk score

    the change in the Life's Essential 8 risk score from baseline to 3 months and 12 months after intervention.

    Time frame: Baseline and 3 months after intervention; Baseline and 12 months after intervention

  10. Exploratory outcomes

    The exploratory outcomes include the change from baseline to follow-up in lifestyle, quality of life, anxiety, depressive, and cognitive function.

    Time frame: Baseline and 3 months after intervention; Baseline and 6 months after intervention; Baseline and 12 months after intervention

07

Study locations

3 of 3 sites recruiting
08

References and documents

Individual participant data

Plan to share: Yes — De-identified participant-level data underlying the published analyses will be made available to qualified researchers upon reasonable request after publication of the main trial results. The shared data may include participant-level datasets, the data dictionary, statistical code and other relevant study materials. Identifiable participant information will not be shared.

Supporting information: Study protocol, Statistical analysis plan, Informed consent form, Analytic code

Time frame: IPD and supporting information will become available after publication of the main trial results. Data will remain available according to institutional policies, ethical requirements and applicable regulations.

Access criteria: Access will be provided to qualified researchers upon reasonable request. Requests will be reviewed and approved by the principal investigators and must comply with applicable ethics requirements, data protection regulations and institutional policies. Researchers may access de-identified participant-level data and relevant supporting materials after approval and completion of any required data-use agreement.

Data sharing details ↗ · clinicaltrials.gov

No publications or documents are linked to this record.

09

Updates

1 registry update since Sep 25, 2026
Primary completion
Sep 24, 2026→Mar 31, 2027
Oct 29, 2026
Study completion
Mar 15, 2027→Sep 30, 2027
Oct 29, 2026
Eligibility
2 inclusion criteria edited
What changed in the criteria
Inclusion criteria
  • EditedPresence of at least one metabolic high-risk state among prehypertensionhigh-normal blood pressure, prediabetes, or borderline elevated blood lipids, and without a diagnosis of hypertension, diabetes mellitus, or dyslipidemia:
  • EditedPrehypertensionHigh-normal BP: Systolic blood pressure (SBP) 130120-139 mmHg and/or diastolic blood pressure (DBP) 80-89 mmHg, without regular use of antihypertensive medication in the past month; (2) Prediabetes: Fasting blood glucose (FBG) 6.1-6.9 mmol/L, or glycated hemoglobin (HbA1c) 5.7%-6.4%, without regular use of hypoglycemic medication in the past month; (3) Borderline elevated blood lipids: Total cholesterol (TC) 5.2-6.1 mmol/L, or low-density lipoprotein cholesterol (LDL-C) 3.4-4.0 mmol/L, or triglycerides (TG) 1.7-2.2 mmol/L, or non-high-density lipoprotein cholesterol (non-HDL-C) 4.1-4.8 mmol/L, without regular use of lipid-lowering medication in the past month; 4. Local permanent residents who will reside in the area for at least 12 month after enrollment; 5. Have basic reading, writing, and comprehension abilities; proficient in using internet-connected smartphones; able to independently complete basic operations of the application; 6. Written informed consent provided.
Oct 29, 2026
Primary outcomes
1 description edited
What changed in the outcomes
  • DescriptionChange in Life's Essential 8 risk score: how it is measured was reworded
Oct 29, 2026
Secondary outcomes
1 added
What changed in the outcomes
  • AddedExploratory outcomesTime frame: Baseline and 3 months after intervention; Baseline and 6 months after intervention; Baseline and 12 months after intervention
Oct 29, 2026
Show all 1 update
  1. Oct 29, 2026
    Primary completion Sep 24, 2026→Mar 31, 2027
    Study completion Mar 15, 2027→Sep 30, 2027
    Eligibility 2 inclusion criteria edited
    What changed in the criteria
    Inclusion criteria
    • EditedPresence of at least one metabolic high-risk state among prehypertensionhigh-normal blood pressure, prediabetes, or borderline elevated blood lipids, and without a diagnosis of hypertension, diabetes mellitus, or dyslipidemia:
    • EditedPrehypertensionHigh-normal BP: Systolic blood pressure (SBP) 130120-139 mmHg and/or diastolic blood pressure (DBP) 80-89 mmHg, without regular use of antihypertensive medication in the past month; (2) Prediabetes: Fasting blood glucose (FBG) 6.1-6.9 mmol/L, or glycated hemoglobin (HbA1c) 5.7%-6.4%, without regular use of hypoglycemic medication in the past month; (3) Borderline elevated blood lipids: Total cholesterol (TC) 5.2-6.1 mmol/L, or low-density lipoprotein cholesterol (LDL-C) 3.4-4.0 mmol/L, or triglycerides (TG) 1.7-2.2 mmol/L, or non-high-density lipoprotein cholesterol (non-HDL-C) 4.1-4.8 mmol/L, without regular use of lipid-lowering medication in the past month; 4. Local permanent residents who will reside in the area for at least 12 month after enrollment; 5. Have basic reading, writing, and comprehension abilities; proficient in using internet-connected smartphones; able to independently complete basic operations of the application; 6. Written informed consent provided.
    Primary outcomes 1 description edited
    What changed in the outcomes
    • DescriptionChange in Life's Essential 8 risk score: how it is measured was reworded
    Secondary outcomes 1 added
    What changed in the outcomes
    • AddedExploratory outcomesTime frame: Baseline and 3 months after intervention; Baseline and 6 months after intervention; Baseline and 12 months after intervention
    + 6 other changes: index terms, identifiers, description, conditions, arm descriptions and data sharing statement

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07372729
Collaborators
Beijing Chao Yang Hospital, Cangzhou Central Hospital, Health Community Group of Yuhuan People's Hosptial
Responsible party
Sponsor
First posted
Jan 28, 2026
Start date
Mar 24, 2026
Primary completion
Mar 31, 2027 (estimated)
Completion
Sep 30, 2027 (estimated)
Last update
Oct 29, 2026

Study contacts

wei wang, PhD
Contact
wangw917@126.com
01081997731
yue qi, PhD
principal investigator · Beijing Anzhen Hospital

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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