Effect of Peer Mentoring and Blood Pressure Self-monitoring on Hypertension Control.

March 6, 2023 updated by: Institute for Clinical Effectiveness and Health Policy

Effectiveness of Peer Mentoring and Blood Pressure Self-monitoring for Blood Pressure Control in Vulnerable Population in Argentina. A Randomized Clinical Trial.

Cardiovascular diseases are increasing throughout the developing world and are the cause of almost 16.7 million deaths each year, of which 80% occur in low and middle-income countries. As more than three fourth of the global burden of cardiometabolic diseases are related to risk factors connected with lifestyles or behaviors, such as smoking, unhealthy eating, low physical activity, and harmful consumption of alcohol. This burden could be dramatically reduced by changing individual behaviors. This study is focused on interventions that are aimed to improve the adherence to treatment in cardiovascular disease (hypertension), based on a Behavioral Economics approach. Most of public policies targeted to tackle Noncommunicable diseases utilize a rational economic model of behavior.

Behavioral economics, by using insights from cognitive psychology and other social sciences, has drawn a lot of attention for its potential to increase healthy behaviors. Interventions informed by Behavioral economics principles seek to rearrange the social or physical environment in such a way to 'nudge' people towards healthier choices and behaviors. This is an individual controlled randomized trial which will be conducted to assess whether the implementation of two strategies, blood pressure self-monitoring plus signing a "contract of commitment", and peer mentoring are effective to reduce blood pressure values over a period of 3 months, compared to usual care. This randomized trial will enroll 430 patients from 10 public primary care clinics in Argentina.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
442

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Argentina
      • Corrientes, Argentina
        • Centro de Atención Primaria de la Salud Dr. Balbastro
      • Corrientes, Argentina
        • Centro de Atención Primaria de la Salud N°15 Illia
      • Salta, Argentina
        • Centro de Salud nº 60 - El Mirador
      • Salta, Argentina
        • Centro de Salud Santa Ana
    • Buenos Aires
      • Vicente López, Buenos Aires, Argentina
        • UAP Illia
      • Vicente López, Buenos Aires, Argentina
        • UAP Sargento Cabral
    • Buenos Aires.
      • Quilmes, Buenos Aires., Argentina
        • Centro Asistencial Modelo Don Bosco
      • Quilmes, Buenos Aires., Argentina
        • Policlínico Julio Méndez
    • Corrientes
      • Paso de los Libres, Corrientes, Argentina
        • CAPS 1 Simeon Payba
      • Paso de los Libres, Corrientes, Argentina
        • CAPS 10 Plurianual

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

21 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adults (21 years and older) who only have public health coverage, and have high blood pressure (SBP ≥140 mmHg and / or DBP ≥90 mmHg)

Exclusion Criteria:

  • Pregnant women, bed-bound, and patients who cannot give informed consent.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
No Intervention: Control
Usual care
Experimental: Peer mentoring
Peers will be patients with hypertension that have already been adequately controlled within the last six months. They will be selected within each center by the staff of the center and invited to participate in the study.
Behavioral: Peer mentoring
Peers will be assigned to participants according to common socio-demographic characteristics. Each peer will be assigned up to 5 participants.
Experimental: Self-monitoring
Each participant will receive a blood pressure monitor. The study nurse will teach the participant on how to use the device.
Behavioral: Self-monitoring
Along with providing patients with a BP monitor, a "commitment contract" will be signed, in which participants commit themselves to measure their blood pressure at home at least once a week during the 3 months of the intervention. Each participant will be given a form to weekly recording their blood pressure values.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Blood pressure
Time Frame: 3 months
Net change in blood pressure levels from baseline to the end of follow-up in in each group.
3 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Controlled hypertension
Time Frame: 3 months
Proportion of patients with controlled hypertension (Systolic blood pressure <140 mm Hg and diastolic blood pressure <90 mm Hg)
3 months
Adherence to antihypertensive medication
Time Frame: 3 months
Proportion of patients who had adhered to antihypertensive medication according to the Morisky Green Scale.
3 months
Intensification of antihypertensive medication
Time Frame: 3 months
Proportion of patients who increased the number of antihypertensive medications or increase the dose of their antihypertensive medication.
3 months
Visits to the clinic
Time Frame: 3 months
Number of visits to the clinic over the 3 month period of follow-up.
3 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Institute for Clinical Effectiveness and Health Policy

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Inter-American Development Bank

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Vilma Irazola, MD, PhD, Institute for Clinical Effectiveness and Health Policy

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 4, 2017

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 1, 2018

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 1, 2018

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 26, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 26, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 29, 2017

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 7, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 6, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • AR-T1087-P0001

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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