RecruitingNot ApplicableNCT07514611

Weight Loss Via Intelligent Guidance in Patients With Coronary Heart Disease and Obesity: a Randomized Clinical Trial

Sponsor

Guangdong Provincial People's Hospital

Enrollment

140 participants

Start Date

Apr 18, 2026

Study Type

INTERVENTIONAL

Conditions

Overweight or obese CHD

Summary

Coronary Heart Disease (CHD) is an ischemic heart disease caused by coronary atherosclerosis, and it is the leading cause of death from cardiovascular diseases worldwide. Weight loss in obese patients can significantly improve metabolic indicators such as dyslipidemia and insulin resistance; therefore, weight loss may become a target for improving the prognosis of obese patients with coronary heart disease. This study is a multicenter, randomized controlled clinical trial aimed at evaluating the effect of software-based healthy weight loss guidance (personalized diet + exercise intervention) in obese patients with coronary heart disease. It is expected that 136 patients will be enrolled in hospitals including Guangdong Provincial People's Hospital, with a total study duration of 1 year.

Eligibility

Min Age: 18 YearsMax Age: 65 Years

Inclusion Criteria7

Age range: 18-65 years old .
History of coronary heart disease confirmed by coronary angiography or coronary CTA, showing ≥50% stenosis in at least one major coronary artery (left main coronary artery, left anterior descending artery, left circumflex artery, right coronary artery); or a definite history of myocardial infarction, or prior coronary revascularization (PCI or CABG).
BMI: Body Mass Index (BMI) ≥ 28 kg/m²
Weight loss willingness: Has the intention to lose weight
Smartphone proficiency: Able to use a smartphone.
Daily living ability: Capable of performing basic activities of daily living independently.
Informed consent: Voluntarily participates in the study, signs a written informed consent form, and is willing to cooperate with follow-up

Exclusion Criteria11

Unstable angina pectoris or acute myocardial infarction occurring within the previous month;
Comorbid endocrine or neurological diseases, cancer, or a history of bariatric surgery that affect body weight; or long-term use of medications that impact body weight;
Comorbid diseases that affect exercise capacity, such as severe cardiopulmonary diseases or osteoarthritic conditions;
Comorbid diseases that affect diet, such as severe mental disorders, bulimia or anorexia nervosa, or cognitive dysfunction;
Significant liver or kidney dysfunction, defined as: glomerular filtration rate < 60 ml/(min·1.73m²) or undergoing dialysis; alanine transaminase (ALT) or aspartate transaminase (AST) ≥ 3 times the upper limit of the normal range specified by the research center;
Severe language, psychological, or physical disabilities that prevent participation in the protocol;
Pregnant or lactating women, or individuals of childbearing potential who are unwilling/unable to use effective contraceptive measures;
Participation in other interventional clinical trials;
Body weight change exceeding 5% within the past year;
Patients with a habit of long-term high-intensity exercise(more than 2 sessions per week of high-intensity endurance training, or more than 3 sessions per week of moderate-intensity endurance training);
Patients deemed unsuitable for participation in the study by the researchers.

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Interventions

BEHAVIORALdietary regulation and structured exercise training

This study implements a personalized intervention combining dietary regulation, exercise training, safety protocols, and adherence assessment. Dietary intervention: Target energy intake = basal energy expenditure×1.3-500kcal; basal energy expenditure is estimated via gender-specific Harris-Benedict formula (0.9 correction), ideal weight by height and BMI 24.9. Macronutrient ratios are selected based on comorbidities and baseline indicators; software generates personalized meal plans, with participants uploading daily food photos for calorie/nutrient analysis and reports. Exercise intervention: Standardized guidance and progressive prescriptions are provided. Aerobic intensity (CPET-determined anaerobic threshold heart rate±10) involves ultra-slow jogging/brisk walking (150-180 steps/min, RPE 10-12), 30-40min core training +10min warm-up/cool-down, ≥5 times/week. Elastic band resistance training (≥3 times/week) uses video guidance.