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Treatment-Resistant HypertensionNCT03001427

Neurocognition, Lifestyle Modification, and Treatment Resistant Hypertension

A study testing Structured center-based lifestyle intervention and Standard education and physician advice in people with Treatment-Resistant Hypertension, run by Duke University at 1 site in United States.

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 application proposes to extend an ongoing NHLBI clinical trial (NCT02342808) examining the efficacy of a lifestyle intervention combining the Dietary Approaches to Stop Hypertension (DASH) diet with caloric restriction and aerobic exercise to lower and control BP in individuals with RH. Read more about this study

Who is it for?
Ages 35 years and older
Conditions the study is for
Treatment-Resistant Hypertension
What is being tested?
Structured center-based lifestyle intervention and Standard education and physician advice
Could I receive a placebo?
No, everyone receives an active treatment
How many people
140 participants
Where
1 siteUnited States
Study dates
Jan 2016to 14 Dec 2020
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 35 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Documented resistant hypertension (RH). In the absence of a specific RH diagnosis, individuals being treated for two or more weeks with 3 antihypertensive medications of different classes, including a diuretic if tolerated, with clinic SBP ≥ 130 mm Hg or DBP ≥ 80 mm Hg, will be eligible. Individuals being treated with 4 or more antihypertensive medications, including a diuretic if tolerated, with SBP ≥ 120 or DBP ≥ 80 mm Hg will also be eligible.
  • Adherent to prescribed medications
  • Overweight (BMI ≥ 25 kg/m2)
  • Sedentary
  • Willing to be randomized to one of the 2 treatment groups and able to fully participate in intervention
  • Informed consent

Who cannot join

  • Secondary HTN, non-adherence to anti-HTN medications
  • Severe CKD (eGFR <40 ml/min/1.73m2)
  • Severe ischemic heart disease (CCS Class 3 or 4 angina or evidence of ischemia at <85% heart rate reserve on treadmill testing)
  • Severe heart failure (NYHA association Class 3 or 4), high grade arrhythmias, severe valvular heart disease
  • Severe asthma or chronic obstructive lung disease
  • Diabetes requiring insulin
Show all 12Show fewer
  • Musculoskeletal or neurologic problems that would preclude participation in aerobic exercise training
  • Major psychiatric disorder, a history of drug abuse, alcohol consumption >14 drinks/week
  • Life-limiting comorbid medical condition such as cancer
  • Prior gastric bypass surgery
  • Currently pregnant
  • Cognitively impaired

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Duke University Medical Center

    Durham, North Carolina, 27710

Other trials in United States

About this study

This application proposes to extend an ongoing NHLBI clinical trial (NCT02342808) examining the efficacy of a lifestyle intervention combining the Dietary Approaches to Stop Hypertension (DASH) diet with caloric restriction and aerobic exercise to lower and control BP in individuals with RH. In the parent trial, participants with RH will be randomized to either: (1) a 4-month adjunctive lifestyle intervention designed to lower BP through exercise and diet (C-LIFE), or; (2) a standardized education and physician advice (SEPA) control condition.

The current protocol will collect additional assessments of neurocognition (executive function, processing speed, and memory), endothelial function (brachial artery flow-mediated dilation), and cerebrovascular reserve (a measure of prefrontal cortex tissue oxygenation) in 120 participants at baseline, following completion of the 4-month intervention, and again after one year, in order to examine neurocognitive improvements and their potential mediators.

Being tested
Structured center-based lifestyle intervention, Standard education and physician advice

What participants receive

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

  • Structured center-based lifestyle interventionBehavioural

  • Standard education and physician adviceBehavioural

Study groups in NCT03001427
Study groupRoleWhat they receive
Structured center-based lifestyle interventionExperimentalThe Structured center-based Lifestyle Intervention (C-LIFE) will include individualized plans for the DASH diet, weight management, and aerobic exercise.
Receives: Behavioral: Structured center-based lifestyle intervention
Standard education and physician adviceExperimentalThe Medical Management with Standardized Education and Physician Advice (SEPA) will consist of encouragement to achieve an ideal body weight and engage in exercise as part of routine counseling in primary care, but no special program will be delivered to enhance the participants' ability to comply with these recommendations.
Receives: Behavioral: Standard education and physician advice

What is being measured

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

  1. Executive Function composite

    Trail Making Test Part B, Stroop Color-Word Section, Animal Naming, COWA, CVLT-II Discrimination Index

    Measured: Baseline to immediate post-treatment (4 months)

  2. Processing Speed composite

    Trail Making Test Part A, Stroop Word Section, Stroop Color Section, Digit Symbol, Ruff 2\&7 Test

    Measured: Baseline to immediate post-treatment (4 months)

  3. Memory composite

    CVLT-II Learning, CVLT-II Free Recall, RCFT Recall, Digit Spa

    Measured: Baseline to immediate post-treatment (4 months)

Secondary outcomes (2)
  1. Brachial Artery Flow-Mediated Dilation

    Measured: Baseline to immediate post-treatment (4 months)

  2. Prefrontal Cortex Tissue Oxygenation Index

    Measured: Baseline to immediate post-treatment (4 months)

Timeline

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

  1. First posted23 Dec 2016 (estimated)
  2. Study startJan 2016
  3. Primary completion27 Feb 2020
  4. Study completion14 Dec 2020

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
140 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03001427
Sponsor's protocol ID
Pro00055703_1
Status last verified
Mar 2021
First submitted
20 Dec 2016
Last updated
23 Mar 2021
Results posted
No
Data monitoring committee
Yes
Individual data sharing
No

Publications

  • Blumenthal JA, Sherwood A, Smith PJ, Mabe S, Watkins L, Lin PH, Craighead LW, Babyak M, Tyson C, Young K, Ashworth M, Kraus W, Liao L, Hinderliter A. Lifestyle modification for resistant hypertension: The TRIUMPH randomized clinical trial. Am Heart J. 2015 Nov;170(5):986-994.e5. doi: 10.1016/j.ahj.2015.08.006. Epub 2015 Aug 14.

    PubMed 26542509

Questions about this trial

What is this clinical trial studying?

A study testing Structured center-based lifestyle intervention and Standard education and physician advice in people with Treatment-Resistant Hypertension, run by Duke University at 1 site in United States.

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 6 inclusion and 12 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 23 Mar 2021. 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 United States. 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?

Executive Function composite (time frame: Baseline to immediate post-treatment (4 months)). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03001427, which also lists 1 linked publication.

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 23 Mar 2021.

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