The Role of Exercise Training in the Treatment of Resistant Hypertension (EnRIcH)

December 16, 2020 updated by: Fernando Ribeiro, Aveiro University
The main purpose of this study is to assess whether exercise training reduces ambulatory blood pressure in patients with resistant hypertension. To accomplish these goals 60 patients with resistant hypertension will be recruited and randomized into exercise training or control groups and followed up for 6 months. The patients in the exercise group will participate in a 3-month outpatient program. The control group will receive usual medical care. At baseline, after the intervention and 3 months after the end of the intervention both groups will undergo several evaluations, including casual and ambulatory blood pressure, body composition, cardiorespiratory fitness, quality of life, arterial stiffness, autonomic function, and endothelial and inflammatory biomarkers.

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.
60

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

  • Portugal
      • Aveiro, Portugal, 3800
        • Cardiology Department, Hospital Infante D. Pedro, Centro Hospitalar do Baixo Vouga
      • Matosinhos, Portugal, 4464-513
        • Hypertension and Cardiovascular Unit, Hospital Pedro Hispano, ULS Matosinhos

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

36 years to 71 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria: confirmed resistant hypertension, who in the previous 3 months had unchanged medication

Exclusion Criteria:

  1. Patients with secondary hypertension
  2. Evidence of target organ damage
  3. Patients with heart failure
  4. Previous cardiovascular event
  5. Peripheral artery disease
  6. Renal failure
  7. Chronic obstructive pulmonary disease
  8. Systolic office blood pressure superior to 180 mmHg
  9. Biomechanical limitations to physical activity
  10. Those participating in regular physical activity

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

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.
Experimental: Exercise group
The 12-week exercise-training program will include three sessions of aerobic exercise per week
Other: Exercise Group
The 12-week exercise-training program will include three sessions of aerobic exercise per week
No Intervention: Control group
The control group will receive usual medical care

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
Ambulatory blood pressure
Time Frame: Change from Baseline in Blood Pressure at 3 months
Blood pressure
Change from Baseline in Blood Pressure at 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
Casual blood pressure
Time Frame: Change from baseline to 3 months
Blood pressure
Change from baseline to 3 months
Body composition
Time Frame: Change from baseline to 3 months
Body composition
Change from baseline to 3 months
Health-related quality of life
Time Frame: Change from baseline to 3 months
Health-related quality of life will be evaluated by the Short-Form 36.
Change from baseline to 3 months
Arterial stiffness
Time Frame: Change from baseline to 3 months
Carotid-femoral pulse wave velocity, central pressures and aortic augmentation index and augmentation pressure.
Change from baseline to 3 months
Heart rate variability
Time Frame: Change from baseline to 3 months
Recordings of R-R interval data; The R-R interval will be analyzed using time domain, frequency domain and Poincare´ plot techniques.
Change from baseline to 3 months
Circulating number of endothelial progenitor cells, circulating endothelial cells, nitric oxide and endothelial Nitric Oxide Synthase
Time Frame: Change from baseline to 3 months
These markers will inform endothelial function, damage and repair
Change from baseline to 3 months
Inflammation
Time Frame: Change from baseline to 3 months
Plasma levels of inflammatory and anti-inflammatory biomarkers.
Change from baseline to 3 months
Oxidative stress
Time Frame: Change from baseline to 3 months
Plasma levels of oxidative stress and antioxidant markers.
Change from baseline to 3 months
Daily physical activity
Time Frame: Change from baseline to 3 months
Physical activity will be measured during 7 consecutive days using an accelerometer.
Change from baseline to 3 months
Dietary intake
Time Frame: Change from baseline to 3 months
Dietary intake will be assessed using a 4-day food diary.
Change from baseline to 3 months
VO2 max
Time Frame: Change from baseline to 3 months
VO2 max will be determined by the Chester step test.
Change from baseline to 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.
Aveiro University

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.
University Institute of Maia
Cardiology Department, Hospital Infante D. Pedro, Centro Hospitalar do Baixo Vouga
Hypertension and Cardiovascular Unit, Hospital Pedro Hispano, ULS Matosinhos
Cintesis & Departamento de Medicina da Faculdade de Medicina do Porto

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.
  • Study Director: José Mesquita Bastos, MD, PhD, Hospital Infante D. Pedro, Centro Hospitalar Do Baixo Vouga

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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.
March 30, 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.
December 30, 2019

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 30, 2020

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).
March 13, 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.
March 20, 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.
March 24, 2017

Study Record Updates

Last Update Posted (Actual)

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.
December 17, 2020

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.
December 16, 2020

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.
December 1, 2020

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.
  • 1725/2014

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

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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