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Blood Pressure, HighNCT03077373

Efficacy of a Brief Intervention on Reduction of Systolic Blood Pressure

A study testing Counseling letter in people with Blood Pressure, High and Cardiovascular Risk Factor, run by University Medicine Greifswald at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study examines the efficacy of individualized counseling letters to reduce systolic blood pressure level of ≥ 130 mmHg in individuals aged between 40 and 65 years. The computer-generated counseling letter intervention aimed to increase moderate-to-vigorous physical activity, to reduce sedentary time, and to… Read more about this study

Who is it for?
Ages 40 to 65 yearsHealthy volunteers can take part
What is being tested?
Counseling letter
Could I receive a placebo?
No, everyone receives an active treatment
How many people
106 participants
Where
1 siteGermany
Study dates
16 Jan 2017to 1 Mar 2019
Phase
Interventional
Are there results?
None posted in the registry

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 40 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • men and women aged between 40 and 65 years
  • mean systolic blood pressure ≥ 130 mmHg at baseline

Who cannot join

  • cardiovascular event (myocardial infarction, stroke)
  • vascular intervention
  • cognitive impairment
  • inadequate language skills
  • severe disease with reduced life expectancy (< 2 years)

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Institute of Social Medicine and Prevention, University Medicine Greifswald

    Greifswald, 17475

Other trials in Germany

About this study

Official title: The Efficacy of a Computerized Brief Intervention Targeting Physical Activity, Sedentary Behavior, and Smoking Cessation on the Reduction of Systolic Blood Pressure in Individuals Aged 40 to 65 Years

This study examines the efficacy of individualized counseling letters to reduce systolic blood pressure level of ≥ 130 mmHg in individuals aged between 40 and 65 years. The computer-generated counseling letter intervention aimed to increase moderate-to-vigorous physical activity, to reduce sedentary time, and to achieve smoking abstinence.

Read the detailed description

This study examines the efficacy of individualized counseling letters to reduce systolic blood pressure level of ≥ 130 mmHg in individuals aged between 40 and 65 years. The computer-generated counseling letter intervention aimed to increase moderate-to-vigorous physical activity, to reduce sedentary time, and to achieve smoking abstinence. Participants are recruited by nurses in routine care of primary medical practices.

Informed consent consists of: (i) participation in standardized measurement of blood pressure as well as waist and hip circumference at baseline and 12-month follow up, (ii) completion of standardized questionnaires at 4 time points (baseline, 4-month, 7-month, and 12-month follow-up). Participation in accelerometry was defined as an option. Individuals who agree to wear the accelerometer do this for 10 days at baseline and 12-month follow-up, each.

After baseline assessment, individuals are randomly allocated to a control and to an intervention group (ratio 1:1).

Intervention: The computerized intervention system includes three interactions with participants aiming to increase moderate-to-vigorous physical activity and to reduce sedentary time. For individuals who were daily smokers at baseline, the computerized intervention system includes three more interactions with participants aiming to foster the motivation to quit smoking. Recurrent assessments are initiated by the system and provide data for scheduling the proceeding intervention steps and selection of relevant content. Physical activity, sedentary time, smoking, and motivational measures to change or maintain behaviors according to the recommendations will be monitored over time and used to provide feedback in the form of letters.

Intervention group: Individuals in this group complete a tablet PC-supported assessment at baseline and 12-month follow-up, both at the general practice. At months 4 and 7, follow-up data are collected by study team members via phone call. According to the assessments (baseline, month 4, and month 7), participants receive three counseling letters aiming to increase moderate-to-vigorous physical activity and to reduce sedentary time. Additionally, individuals who were daily smokers at baseline, receive three counseling letters aiming to foster the motivation to quit smoking. The first letter is accompanied by a self-help manual covering specific information relevant for the particular stage of motivation to change smoking behavior according to the principles of the Transtheoretical Model of behavior change.

Control group: Individuals in this group complete a tablet PC-supported assessment at baseline and 12-month follow-up, both in the general practice. At months 4 and 7, follow-up data are collected by study team members via phone call.

Being tested
Counseling letter
Keywords
systolic blood pressure, physical activity, sedentary time, smoking
Medical subject headings
Hypertension, Motor Activity, Sedentary Behavior, Smoking

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Counseling letterBehavioural

    The brief counseling letter intervention aiming to reduce physical inactivity, sedentary time in leisure time as well as smoking is based on behavior change theories (Transtheoretical model of health behavior change and Health Action Process Approach).

    The computerized intervention system includes up to six interactions with participants. Recurrent assessments are initiated by the system and provide data for scheduling the proceeding intervention steps and selection of relevant content. Physical activity, sedentary time, smoking, and motivational measures to change or maintain behaviors according to the recommendations will be monitored over time and used to provide feedback in the form of letters.

Study groups in NCT03077373
Study groupRoleWhat they receive
Counseling letter (intervention group)ExperimentalIntervention group: Individuals in this group complete a tablet PC-supported assessment at baseline and 12-month follow-up, both at the general practice. At months 4 and 7, follow-up data are collected by study team members via phone call. According to the assessments (baseline, month 4, and month 7), participants receive three counseling letters aiming to increase moderate-to-vigorous physical activity and to reduce sedentary time. Additionally, individuals who were daily smokers at baseline, receive three counseling letters aiming to foster the motivation to quit smoking. The first letter is accompanied by a self-help manual covering specific information relevant for the particular stage of motivation to change smoking behavior.
Receives: Behavioral: Counseling letter
No counseling letter (control group)No interventionControl group: Individuals in this group complete a tablet PC-supported assessment at baseline and 12-month follow-up, both in the general practice. At months 4 and 7, follow-up data are collected by study team members via phone call.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Systolic blood pressure

    Reduction of 4 mmHg mean systolic blood pressure in intervention group; Measures: standardized measurements of mean systolic blood pressure (in mmHg)

    Measured: Change from baseline mean systolic blood pressure at 12 months

Secondary outcomes (6)
  1. Waist and hip circumference

    Reduction of waist and hip circumference in intervention group; Measures: standardized measurements of waist and hip circumference (in cm)

    Measured: Change from baseline waist and hip circumference at 12 months

  2. Physical activity by self-report

    Measures: assessement via tablet PC or phone calls (International Physical Activity Questionnaire, IPAQ)

    Measured: Change from baseline physical activity at 12 months

  3. Physical activity by accelerometry (if data are available)

    Measures: objective measurement of physical activity by accelerometry

    Measured: Change from baseline physical activity at 12 months

  4. Sedentary time by self-report

    Measures: assessement via tablet PC or phone calls (last 7-d sedentary behavior questionnaire, SIT-Q-7d)

    Measured: Change from baseline sedentary time at 12 months

  5. Sedentary behavior by accelerometry (if data are available)

    Measures: objective measurement of sedentary behavior by accelerometry

    Measured: Change from baseline physical inactivity at 12 months

  6. Smoking by self-report

    Measures: questions regarding smoking (assessment via tablet PC or phone calls)

    Measured: Change from baseline smoking at 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Mar 2017
  2. Study start16 Jan 2017
  3. Primary completion1 Mar 2019
  4. Study completion1 Mar 2019

Resources

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
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
106 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03077373
Sponsor's protocol ID
BB005/17
Status last verified
Mar 2019
First submitted
7 Mar 2017
Last updated
11 Mar 2019
Results posted
No
Data monitoring committee
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A study testing Counseling letter in people with Blood Pressure, High and Cardiovascular Risk Factor, run by University Medicine Greifswald at 1 site in Germany.

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 2 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: finished, as of the sponsor's last update on 11 Mar 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Systolic blood pressure (time frame: Change from baseline mean systolic blood pressure at 12 months). 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 11 Mar 2019.

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