HypertensionSCREENS-BPNCT07903779
Effects of Smartphone Use and Television Viewing on Standardized BP Measurement: The SCREENS-BP Study
A study testing Standardized office blood pressure measurements in people with Hypertension, run by Centre Integre Universitaire de Sante et Services Sociaux du Nord de l'ile de Montreal at 2 sites in 2 countries.
Trial summary
The SCREENS-BP study is a randomized crossover study evaluating the effects of smartphone use and television viewing on blood pressure (BP) measurements in 96 adults. Each participant will undergo four sets of automated BP measurements under standardized conditions. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Hypertension
- What is being tested?
- Standardized office blood pressure measurements
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 96 participants
- Where
- 2 sitesin 2 countries
- Study dates
- 15 Nov 2026to 14 Nov 2028
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Adults aged 18 years or older
Who cannot join
- Upper arm sizes outside of the range of the available cuffs (<14 cm or > 52 cm)
- Atrial fibrillation at the time of measurements
- Ongoing pregnancy
- No smartphone in their possession
- Inability or unwillingness to provide consent
Trial locations and contacts
2 sites in 2 countries. Contact the study team or a site near you to ask about taking part.
2 sites in 2 countries
Australia1 site
The University of Sydney School of Health Sciences
Camperdown, New South Wales, 2050
Dean Picone, PhD, +61 2 9351 9952, dean.picone@sydney.edu.au
Canada1 site
Hôpital Sacré-Coeur de Montréal
Montreal, Quebec, H4J 1C5
Guylaine Marcotte, +1-514-338-2222, guylaine.marcotte.cnmtl@ssss.gouv.qc.ca
About this study
The SCREENS-BP study is a randomized crossover study evaluating the effects of smartphone use and television viewing on blood pressure (BP) measurements in 96 adults.
Each participant will undergo four sets of automated BP measurements under standardized conditions. The first three sets will be performed in random order: without distractions, while actively using a smartphone, and while watching a standardized television video. A fourth set without distractions will be performed at the end. Each set will consist of a two-minute walk, five minutes of rest followed by three BP measurements taken at one-minute intervals, without staff present.
Read more
The primary outcome is the within-participant difference in systolic BP between each distraction condition and the reference BP, calculated from the mean of the two sets without distractions. Secondary outcomes include differences in diastolic BP and heart rate. Exploratory analyses will assess potential differences according to participant characteristics.
The findings will help determine whether common technological distractions influence BP measurement accuracy and inform recommendations for BP measurement in clinical, home, and research settings.
Read the detailed description
Accurate blood pressure (BP) measurement is essential for the diagnosis and management of hypertension. Current guidelines recommend standardized measurement conditions, including a period of rest and the avoidance of distractions. However, these conditions may not reflect routine clinical practice or home BP monitoring, where activities such as smartphone use or television viewing are common. The clinical impact of these technological distractions on BP measurements remains uncertain.
SCREENS-BP is a randomized crossover study designed to evaluate whether smartphone use and television viewing influence BP measurements obtained under otherwise standardized conditions. The study will recruit 96 adults aged 18 years or older.
Each participant will complete four sets of BP measurements on the non-dominant arm using a validated automated oscillometric device. Each set will include a five-minute rest period followed by three BP measurements taken at one-minute intervals, without staff present in the room. Before each set, participants will walk slowly for two minutes and then be positioned according to standardized BP measurement recommendations.
The first three measurement conditions will be performed in randomized order:
- Standardized BP measurement without distractions.
- BP measurement while actively using a smartphone.
- BP measurement while watching a standardized informational video on a television.
A fourth set of standardized BP measurements without distractions will be performed at the end of the protocol to account for within-participant BP variability and potential changes in BP over time.
The primary outcome will be the within-participant difference in mean systolic BP between each distraction condition and the reference BP, calculated as the average of the two standardized measurement sets. Secondary outcomes will include differences in diastolic BP and heart rate. Exploratory analyses will evaluate potential effect modification by sex, age, baseline BP, and antihypertensive medication use, as well as the robustness of the results across different statistical approaches.
By quantifying the impact of common technological distractions on BP measurements, SCREENS-BP aims to inform recommendations for BP measurement in clinical settings, at home, in pharmacies, and in research. The results may support stricter standardization of measurement conditions or provide evidence for more flexible protocols if no clinically meaningful differences are observed.
- Conditions
- Hypertension
- Being tested
- Standardized office blood pressure measurements
- Keywords
- blood pressure measurement
- Medical subject headings
- Hypertension
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Standardized office blood pressure measurementsDiagnostic test
Standardized office blood pressure measurements
| Study group | Role | What they receive |
|---|---|---|
| Optimal BP measurement (no dictractions) #1 | Active comparator | BP measured in an optimal environnement, without any distractions (first set) Receives: Diagnostic Test: Standardized office blood pressure measurements |
| Phone | Active comparator | BP measured while being being distracted by smartphone browsing Receives: Diagnostic Test: Standardized office blood pressure measurements |
| Television | Active comparator | BP measured while being being distracted by television watching Receives: Diagnostic Test: Standardized office blood pressure measurements |
| Optimal BP measurement (no dictractions) #2 | Active comparator | BP measured in an optimal environnement, without any distractions (second set) Receives: Diagnostic Test: Standardized office blood pressure measurements |
What is being measured
The primary outcome is the main question the study is designed to answer.
Mean difference in systolic BP - Phone distraction
Mean difference in systolic BP between BP measured during the Phone distraction and the mean of the two standardized AOBP measurement series (without any distraction)
Measured: At enrollment (time 0)
Mean difference in systolic BP - Television distraction
Mean difference in systolic BP between BP measured during the Television distraction and the mean of the two standardized AOBP measurement series (without any distraction)
Measured: At enrollment (time 0)
Secondary outcomes (4)
Mean difference in diastolic BP - Phone distraction
Mean difference in diastolic BP between BP measured during the Phone distraction and the mean of the two standardized AOBP measurement series (without any distraction)
Measured: At enrollment (time 0)
Mean difference in diastolic BP - Television distraction
Mean difference in diastolic BP between BP measured during the Television distraction and the mean of the two standardized AOBP measurement series (without any distraction)
Measured: At enrollment (time 0)
Mean difference in heart rate - Phone distraction
Mean difference in heart rate between BP measured during the Phone distraction and the mean of the two standardized AOBP measurement series (without any distraction)
Measured: At enrollment (time 0)
Mean difference in heart rate - Television distraction
Mean difference in heart rate between BP measured during the Television distraction and the mean of the two standardized AOBP measurement series (without any distraction)
Measured: At enrollment (time 0)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Oct 2026
- Study start15 Nov 2026 (estimated)
- Primary completion14 Nov 2028 (estimated)
- Study completion14 Nov 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for HypertensionStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Diagnosis
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Enrolment
- 96 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Centre Integre Universitaire de Sante et Services Sociaux du Nord de l'ile de Montreal
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Remi Goupil, MD MSc, Centre Integre Universitaire de Sante et Services Sociaux du Nord de l'ile de Montreal
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07903779
- Sponsor's protocol ID
- 2027-3233
- Acronym
- SCREENS-BP
- Status last verified
- Oct 2026
- First submitted
- 19 Oct 2026
- Last updated
- 29 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Available upon reasonnable request
Study at a glance
From the registry record, last updated by the sponsor on 29 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Smartphone Use and Television Viewing on Standardized BP Measurement: The SCREENS-BP Study
- ClinicalTrials.gov ID
- NCT07903779
- Acronym / sponsor ID
- SCREENS-BP / 2027-3233
- Conditions
- Hypertension
- Keywords
- blood pressure measurement
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 96 participants (estimated)
- Lead sponsor
- Centre Integre Universitaire de Sante et Services Sociaux du Nord de l'ile de MontrealUniversity, hospital or other
- Study start
- 15 Nov 2026 (estimated)
- Primary completion
- 14 Nov 2028 (estimated)
- Study completion
- 14 Nov 2028 (estimated)
- First posted
- 29 Oct 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The SCREENS-BP study is a randomized crossover study evaluating the effects of smartphone use and television viewing on blood pressure (BP) measurements in 96 adults.
Each participant will undergo four sets of automated BP measurements under standardized conditions. The first three sets will be performed in random order: without distractions, while actively using a smartphone, and while watching a standardized television video. A fourth set without distractions will be performed at the end. Each set will consist of a two-minute walk, five minutes of rest followed by three BP measurements taken at one-minute intervals, without staff present.
The primary outcome is the within-participant difference in systolic BP between each distraction condition and the reference BP, calculated from the mean of the two sets without distractions. Secondary outcomes include differences in diastolic BP and heart rate. Exploratory analyses will assess potential differences according to participant characteristics.
The findings will help determine whether common technological distractions influence BP measurement accuracy and inform recommendations for BP measurement in clinical, home, and research settings.
Detailed description
Accurate blood pressure (BP) measurement is essential for the diagnosis and management of hypertension. Current guidelines recommend standardized measurement conditions, including a period of rest and the avoidance of distractions. However, these conditions may not reflect routine clinical practice or home BP monitoring, where activities such as smartphone use or television viewing are common. The clinical impact of these technological distractions on BP measurements remains uncertain.
SCREENS-BP is a randomized crossover study designed to evaluate whether smartphone use and television viewing influence BP measurements obtained under otherwise standardized conditions. The study will recruit 96 adults aged 18 years or older.
Each participant will complete four sets of BP measurements on the non-dominant arm using a validated automated oscillometric device. Each set will include a five-minute rest period followed by three BP measurements taken at one-minute intervals, without staff present in the room. Before each set, participants will walk slowly for two minutes and then be positioned according to standardized BP measurement recommendations.
The first three measurement conditions will be performed in randomized order:
- Standardized BP measurement without distractions.
- BP measurement while actively using a smartphone.
- BP measurement while watching a standardized informational video on a television.
A fourth set of standardized BP measurements without distractions will be performed at the end of the protocol to account for within-participant BP variability and potential changes in BP over time.
The primary outcome will be the within-participant difference in mean systolic BP between each distraction condition and the reference BP, calculated as the average of the two standardized measurement sets. Secondary outcomes will include differences in diastolic BP and heart rate. Exploratory analyses will evaluate potential effect modification by sex, age, baseline BP, and antihypertensive medication use, as well as the robustness of the results across different statistical approaches.
By quantifying the impact of common technological distractions on BP measurements, SCREENS-BP aims to inform recommendations for BP measurement in clinical settings, at home, in pharmacies, and in research. The results may support stricter standardization of measurement conditions or provide evidence for more flexible protocols if no clinically meaningful differences are observed.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Optimal BP measurement (no dictractions) #1 | Active comparator | Diagnostic Test: Standardized office blood pressure measurementsBP measured in an optimal environnement, without any distractions (first set) |
| Phone | Active comparator | Diagnostic Test: Standardized office blood pressure measurementsBP measured while being being distracted by smartphone browsing |
| Television | Active comparator | Diagnostic Test: Standardized office blood pressure measurementsBP measured while being being distracted by television watching |
| Optimal BP measurement (no dictractions) #2 | Active comparator | Diagnostic Test: Standardized office blood pressure measurementsBP measured in an optimal environnement, without any distractions (second set) |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Adults aged 18 years or older
Key exclusion criteria (5 listed)
- Upper arm sizes outside of the range of the available cuffs (<14 cm or > 52 cm)
- Atrial fibrillation at the time of measurements
- Ongoing pregnancy
- No smartphone in their possession
- Inability or unwillingness to provide consent
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Standardized office blood pressure measurementsStandardized office blood pressure measurements | Diagnostic test | Optimal BP measurement (no dictractions) #1, Optimal BP measurement (no dictractions) #2, Phone, Television |
Primary outcome
Mean difference in systolic BP - Phone distraction
Time frame: At enrollment (time 0)
Mean difference in systolic BP between BP measured during the Phone distraction and the mean of the two standardized AOBP measurement series (without any distraction)
Mean difference in systolic BP - Television distraction
Time frame: At enrollment (time 0)
Mean difference in systolic BP between BP measured during the Television distraction and the mean of the two standardized AOBP measurement series (without any distraction)
4 secondary outcomes
Mean difference in diastolic BP - Phone distraction
Time frame: At enrollment (time 0)
Mean difference in diastolic BP - Television distraction
Time frame: At enrollment (time 0)
Mean difference in heart rate - Phone distraction
Time frame: At enrollment (time 0)
Mean difference in heart rate - Television distraction
Time frame: At enrollment (time 0)
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Oct 2026.
- Individual participant dataSharing planned: Yes. Available upon reasonnable request
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
2 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Standardized office blood pressure measurements in people with Hypertension, run by Centre Integre Universitaire de Sante et Services Sociaux du Nord de l'ile de Montreal at 2 sites in 2 countries.
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 1 inclusion and 5 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: opening soon, as of the sponsor's last update on 29 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in Australia, Canada. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Remi Goupil, MD MSc (+1-514-338-2883, remi.goupil@umontreal.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Mean difference in systolic BP - Phone distraction (time frame: At enrollment (time 0)). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 29 Oct 2026.