HeartMate App-Based Remote Monitoring for Cardiovascular Risk Factor Management
Effect of HeartMate Application-Based Remote Patient Monitoring on Cardiovascular Risk Factor Management: An Exploratory Randomized Controlled Pilot Study
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
詳細な説明
Study design: This is a single-center, prospective, open-label, randomized controlled exploratory pilot trial with two parallel groups and 1:1 allocation. A total of 200 participants (100 per group) are planned, with approximately 170 evaluable participants expected after an anticipated 10-20% dropout.
Background and rationale: Traditional hospital-based cardiac rehabilitation has low participation because of travel, time, and cost barriers. Smartphone-based remote patient monitoring and digital cardiac rehabilitation may lower these barriers and enable continuous monitoring of cardiovascular risk factors. Smartphone-derived digital biomarkers, including remote photoplethysmography (rPPG) and heart rate variability (HRV), may provide non-invasive markers correlated with conventional cardiovascular risk indicators.
Randomization: After completion of baseline assessment, participants are randomly allocated 1:1 to the intervention or control group using a random number table with block randomization (block size of 4). The allocation sequence is generated by a person independent of the study, and allocation is concealed using sequentially numbered, password-protected locked files. Investigators performing screening and enrollment do not have access to the allocation sequence.
Intervention group: Participants use the HeartMate app-based remote cardiac rehabilitation program for 6 weeks. The program provides a daily heart check using rPPG, aerobic and resistance exercise, breathing training, and a cognitive-behavioral mind program. Trained staff provide message-based counseling and exercise and lifestyle guidance at least weekly; the Severance research team reviews monitoring logs at least weekly and handles all medical decisions and adverse events.
Control group: Participants receive usual outpatient follow-up and lifestyle education materials. The HeartMate app is installed for rPPG-based measurement only, with no exercise or mind program, so that digital-biomarker measurement is identical across groups and to minimize confounding from app installation.
Assessments: Clinical assessments (6-minute walk distance, grip strength, blood pressure, height, weight, electrocardiogram), blood tests (lipid profile, fasting glucose, renal and hepatic function, electrolytes; HbA1c for participants with diabetes; NT-proBNP for participants with heart failure), questionnaires (SF-12, PHQ-9, GAD-7, KOSS-24), and digital biomarkers (rPPG-derived heart rate, HRV, respiration, activity; reference contact PPG for accuracy verification) are collected at baseline and at 6 weeks. Standardized measurement conditions are applied for rPPG (fasting, seated stable posture, camera distance 30-50 cm, uniform lighting, repeated measurement, and signal-quality control).
Outcomes: The primary outcome is the between-group difference in the change in 6-minute walk distance from baseline to 6 weeks, analyzed primarily by independent-samples t-test (exploratory) with ANCOVA as a supportive analysis adjusting for baseline and covariates. Secondary outcomes include safety (adverse events and serious adverse events) and adherence (app usage days and target usage rate of at least 80%). Exploratory outcomes include changes in blood pressure, blood lipids, glucose and HbA1c, quality of life and psychological measures, and the agreement between rPPG-derived and reference contact-PPG digital biomarkers.
Statistical considerations: As an exploratory pilot, the sample size is intended to provide reliable preliminary estimates (effect size, standard deviation, dropout rate) for a future definitive randomized controlled trial rather than to confirm efficacy. Analyses follow the intention-to-treat principle, with missing data handled per the statistical analysis plan.
Data management: Data are identified only by a unique subject code and stored on an encrypted secure server (AES-256 encryption; FIPS 140-3 physical and logical security). rPPG facial video is not stored; only de-identified RGB time-series signals are retained. Records are kept for 3 years after study completion and then destroyed irrecoverably.
研究の種類
研究の種類
入学 (推定)
入学
段階
段階
- 適用できない
連絡先と場所
研究連絡先
研究連絡先
- 名前：Chan Joo Lee, Professor
- 電話番号：+82-2-2228-8460
- メール：zanzu@yuhs.ac
参加基準
適格基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- Adults aged 19 years or older
- Patients with cardiac disease judged to require cardiac rehabilitation (e.g., heart failure, valvular heart disease, coronary artery disease, peripheral arterial disease)
- Able to be followed for at least 6 weeks during the study period
- Able to consent to blood testing and PPG measurement at baseline and endpoint
- Able to use a smartphone application
Exclusion Criteria:
- Judged unable to undergo PPG measurement
- Atrial fibrillation
- Condition or disease making participation in cardiac rehabilitation difficult
- Psychiatric illness, cognitive impairment, or expected poor adherence that may affect study participation
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：防止
- 割り当て：ランダム化
- 介入モデル：並列代入
- マスキング：なし（オープンラベル）
アーム数
武器と介入
参加者グループ / アーム参加者グループ / アーム |
介入・治療介入・治療 |
|---|---|
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実験的：Intervention Group (HeartMate App-Based Remote Cardiac Rehabilitation)
Participants use the HeartMate app-based remote cardiac rehabilitation program for 6 weeks (daily rPPG heart check; aerobic and resistance exercise; breathing training; cognitive-behavioral mind program), with at least weekly remote coaching.
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A 6-week smartphone application program delivering a daily heart check using remote photoplethysmography (rPPG), aerobic and resistance exercise, breathing training, and a cognitive-behavioral mind program.
Trained staff provide message-based counseling and exercise/lifestyle guidance at least weekly, and the Severance research team reviews monitoring logs at least weekly and handles all medical decisions and adverse events.
|
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プラセボコンパレーター：Control Group (Usual Care with App-Based Measurement Only)
Participants receive usual outpatient follow-up and lifestyle education materials.
The HeartMate app is installed for rPPG-based measurement only (no exercise or mind program) to keep digital-biomarker measurement identical across groups.
|
Standard outpatient follow-up and lifestyle education materials without the exercise or mind program.
The HeartMate app is installed solely for rPPG-based digital-biomarker measurement at baseline and at 6 weeks, ensuring identical measurement conditions across groups.
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この研究は何を測定していますか？
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Change from Baseline in 6-Minute Walk Test (6MWT) Distance at 6 Weeks
時間枠：Baseline and 6 weeks (change from baseline to Week 6)
|
The distance walked (in meters) during the 6-minute walk test, measured at baseline and at 6 weeks.
The change (Week 6 minus baseline) is compared between the intervention and control groups.
As an exploratory pilot outcome, the primary purpose is to estimate the effect size and standard deviation for a future randomized controlled trial rather than to confirm efficacy.
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Baseline and 6 weeks (change from baseline to Week 6)
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二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Number of Participants With At Least One Adverse Event (AE)
時間枠：From randomization through 6 weeks
|
Number of participants with at least one adverse event during the intervention period.
Unit of measure: participants (count).
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From randomization through 6 weeks
|
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Number of Participants With At Least One Serious Adverse Event (SAE)
時間枠：From randomization through 6 weeks
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Number of participants with at least one serious adverse event during the intervention period.
Unit of measure: participants (count).
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From randomization through 6 weeks
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Proportion of Participants Achieving Target Application Usage (>= 80%)
時間枠：Over the 6-week intervention period
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Percentage of intervention-group participants whose HeartMate application usage reaches at least 80% of the prescribed daily sessions.
Unit of measure: percentage of participants (%).
A higher value indicates better adherence.
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Over the 6-week intervention period
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その他の成果指標
その他の成果指標
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Change From Baseline in Systolic Blood Pressure at 6 Weeks
時間枠：Baseline and 6 weeks
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Change from baseline to 6 weeks in resting systolic blood pressure, measured after 5 minutes of rest using an automated sphygmomanometer.
Unit of measure: mmHg.
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Baseline and 6 weeks
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Change From Baseline in Diastolic Blood Pressure at 6 Weeks
時間枠：Baseline and 6 weeks
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Change from baseline to 6 weeks in resting diastolic blood pressure, measured after 5 minutes of rest using an automated sphygmomanometer.
Unit of measure: mmHg.
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Baseline and 6 weeks
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Change From Baseline in Total Cholesterol at 6 Weeks
時間枠：Baseline and 6 weeks
|
Change from baseline to 6 weeks in serum total cholesterol.
Unit of measure: mg/dL.
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Baseline and 6 weeks
|
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Change From Baseline in LDL Cholesterol at 6 Weeks
時間枠：Baseline and 6 weeks
|
Change from baseline to 6 weeks in serum low-density lipoprotein (LDL) cholesterol.
Unit of measure: mg/dL.
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Baseline and 6 weeks
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Change From Baseline in HDL Cholesterol at 6 Weeks
時間枠：Baseline and 6 weeks
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Change from baseline to 6 weeks in serum high-density lipoprotein (HDL) cholesterol.
Unit of measure: mg/dL.
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Baseline and 6 weeks
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Change From Baseline in Triglycerides at 6 Weeks
時間枠：Baseline and 6 weeks
|
Change from baseline to 6 weeks in serum triglycerides.
Unit of measure: mg/dL.
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Baseline and 6 weeks
|
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Change From Baseline in Fasting Plasma Glucose at 6 Weeks
時間枠：Baseline and 6 weeks
|
Change from baseline to 6 weeks in fasting plasma glucose.
Unit of measure: mg/dL.
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Baseline and 6 weeks
|
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Change From Baseline in Glycated Hemoglobin (HbA1c) at 6 Weeks
時間枠：Baseline and 6 weeks
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Change from baseline to 6 weeks in glycated hemoglobin (HbA1c).
Unit of measure: percent (%).
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Baseline and 6 weeks
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Change From Baseline in SF-12 Physical Component Summary at 6 Weeks
時間枠：Baseline and 6 weeks
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Change from baseline to 6 weeks in the Physical Component Summary (PCS) of the 12-Item Short-Form Health Survey (SF-12).
Scores range from 0 to 100; higher scores indicate better physical health-related quality of life.
Unit of measure: units on a scale.
(The exact minimum and maximum depend on the SF-12 scoring algorithm used.)
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Baseline and 6 weeks
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Change From Baseline in SF-12 Mental Component Summary at 6 Weeks
時間枠：Baseline and 6 weeks
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Change from baseline to 6 weeks in the Mental Component Summary (MCS) of the 12-Item Short-Form Health Survey (SF-12).
Scores range from 0 to 100; higher scores indicate better mental health-related quality of life.
Unit of measure: units on a scale.
(The exact minimum and maximum depend on the SF-12 scoring algorithm used.)
|
Baseline and 6 weeks
|
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Change From Baseline in PHQ-9 Total Score at 6 Weeks
時間枠：Baseline and 6 weeks
|
Change from baseline to 6 weeks in the Patient Health Questionnaire-9 (PHQ-9) total score.
Total score ranges from 0 to 27; higher scores indicate more severe depressive symptoms (a worse outcome).
Unit of measure: units on a scale.
|
Baseline and 6 weeks
|
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Change From Baseline in GAD-7 Total Score at 6 Weeks
時間枠：Baseline and 6 weeks
|
Change from baseline to 6 weeks in the Generalized Anxiety Disorder-7 (GAD-7) total score.
Total score ranges from 0 to 21; higher scores indicate more severe anxiety symptoms (a worse outcome).
Unit of measure: units on a scale.
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Baseline and 6 weeks
|
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Change From Baseline in KOSS-SF Total Score at 6 Weeks
時間枠：Baseline and 6 weeks
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Change from baseline to 6 weeks in the Korean Occupational Stress Scale - Short Form (KOSS-SF, 24 items).
Item scores are converted to a 0 to 100 scale; higher scores indicate greater occupational stress (a worse outcome).
Unit of measure: units on a scale.
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Baseline and 6 weeks
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Mean Absolute Error Between rPPG- and Reference Contact PPG-Derived Heart Rate
時間枠：Baseline and 6 weeks
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Mean absolute error between heart rate derived from smartphone remote photoplethysmography (rPPG) and simultaneously measured reference contact PPG.
Unit of measure: beats per minute (bpm).
Lower values indicate better agreement.
|
Baseline and 6 weeks
|
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Correlation Between rPPG- and Reference Contact PPG-Derived HRV (SDNN)
時間枠：Baseline and 6 weeks
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Pearson correlation coefficient between heart rate variability (SDNN) derived from rPPG and from reference contact PPG.
Unit of measure: correlation coefficient (r), ranging from -1 to 1; values closer to 1 indicate better agreement.
|
Baseline and 6 weeks
|
協力者と研究者
研究記録日
主要日程の研究
研究開始 (推定)
研究開始
一次修了 (推定)
一次修了
研究の完了 (推定)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
QC基準を満たした最後の更新が送信されました
最終確認日
最終確認日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
その他の研究ID番号
- 4-2026-0449
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