NCT06577688Recruiting
Smartphone Blood Pressure Measurement to Screen for Hypertension
Assessing the Feasibility of Classifying People Using a Machine-learning Approached Based on Features Derived From Smartphone Video Data Recorded at the Person's Fingertip
Source: ClinicalTrials.gov · Last updated 27 Mar 2026
Brief summary (registry, in English)
The goal of this observational study is to assess the feasibility of classifying people whose blood pressures are within hypertensive range using a machine-learning approach based on features derived from smartphone video data recorded at the patient's fingertips. The main question\[s\] it aims to answer are: Is a smartphone a reliable device for high blood pressure screening ? Is a smartphone a reliable device for blood pressure monitoring ? Participants will record their blood pressure with a smartphone at their fingertips and with an approved cuff device, 3 times in the morning and 3 times in the evening for 7 days. There will be two groups, a volunteer presumed healthy, and a volunteer addressed for a Home Blood pressure monitoring with the diagnosis of hypertension suspected. Researchers will compare the two groups to see if the smartphone can be reliable in terms of diagnosis and monitoring of the blood pressure comparing to a standard cuff device.
- Status (registry)
- Recruiting
- Study type
- Observational
- Enrollment
- 100 (estimated)
- First submitted
- 27 Aug 2024
- Start date
- 1 Sept 2024
- Primary completion date
- 30 Dec 2026
- Lead sponsor
- Centre Hospitalier Universitaire Vaudois
- Diseases
- High blood pressure
- NCT number
- NCT06577688
What you commit to
- Study type: Observational
- Planned participants: 100
- From 1 Sept 2024 to the primary completion date, 30 Dec 2026
- 2 sites in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other illness
- Known or suspected non-compliance (e.g. drug or alcohol abuse, language problems, psychological disorders, dementia)
- Known unstable cardiac condition (myocardial infarction \< 1 week, decompensated heart failure, pulmonary embolism)
- Diabetes mellitus \[15\] \[8\]
- Known (or assessed by recording heart rate and using pulse palpation, as recommended in ESC/ESH guidelines \[1\]) cardiac arrhythmia (atrial fibrillation, numerous extrasystoles and important bradycardia/bradyarrhythmia, bigeminy, trigeminy, isolated VPB) \[4\] \[1\] \[7\] \[15\] \[17\]
Lab values
- End-stage renal disease (GFR \< 15/min/1.73m2 and/or dialysis) \[4\] \[14\] \[15\] \[16\]
Age
- Patients older than 80 years old \[4\] \[13\]
Other
- Patients that cannot sign informed consent
- Patients in emergency situation, are not legally competent, cannot understand the situation or are vulnerable
- Unable to participate due to pain or stress \[12\]
- Known pregnancy
- SBP or DBP difference between two arms \>10 mmHg \[8\] \[18\]
- Patient with finger lesions that would alter the correct capture of signals by the mobile phone.
- Known mobile phone contact dermatitis (caused by metal allergens, notably nickel and chromium
- Incapacity of properly using the smartphone (i.e. incapacity of obtaining a recording with sufficient signal quality after the dedicated training)
Who the study is looking for
- Informed consent as documented by signature
- Men or women older than 18 years old
- Good understanding of written and oral speaking used at the center where the study will be carried out
Age in the registry: 18 years to 80 years · Sex: All · Accepts healthy volunteers
Sites (2)
Sites in registry order. Save your city in your profile to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| University Hospital Lausanne Coordinator of this site? Confirm its status | Lausanne | Switzerland | Recruiting |
| University Hospital Lausanne, CHUV Coordinator of this site? Confirm its status | Lausanne | Switzerland | Recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.