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Cardiovascular DiseasesNCT00233220

Blood Pressure Control in African Americans

A study testing Multicomponent, multi-level intervention targeted at physicians and patients in people with Cardiovascular Diseases and Hypertension, run by NYU Langone Health 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

The purpose of this study is to test the effectiveness of a multi-component evidence-based intervention that targets both patients and physicians, in improving BP control rates in patients followed in 30 Community/Migrant Health Centers (C/MHCs). Read more about this study

Who is it for?
Any age
Conditions the study is for
Cardiovascular Diseases, Hypertension
What is being tested?
Multicomponent, multi-level intervention targeted at physicians and patients
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,039 participants
Where
1 siteUnited States
Study dates
Sep 2004to Mar 2010
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Uncontrolled Hypertension
  • African American

Who cannot join

None listed.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • NYU School of Medicine

    New York, New York, 10016

Other trials in United States

About this study

Official title: Multi-site Randomized Controlled Trial for Blood Pressure Control in Hypertensive African Americans

The purpose of this study is to test the effectiveness of a multi-component evidence-based intervention that targets both patients and physicians, in improving BP control rates in patients followed in 30 Community/Migrant Health Centers (C/MHCs).

Read the detailed description

BACKGROUND:

African Americans (AA) have the highest prevalence of hypertension (HTN) in the U.S., with a resultant greater HTN-related mortality compared to whites. Barriers to BP Control in AA exist at 3 levels of care: the patient, the physician, and the healthcare system. Using the Chronic Care Model as a framework, the investigators seek to test the effect on BP control of a multicomponent, multi-level intervention targeted at physicians and patients.

DESIGN NARRATIVE:

Using the Chronic Care Model as a framework, the investigators seek to test the effect on BP control of a multicomponent, multi-level intervention targeted at physicians and patients. They will conduct a clustered randomized controlled trial in which 30 C/MHCs will be randomized to either the intervention or usual care. A total of 990 patients with uncontrolled HTN (BP greater than 140/90 mm Hg) will be enrolled for this trial. Components of the patient intervention include an innovative patient education approach known as Self-Paced Programmed Instruction that will be used to educate patients on knowledge of HTN; behavioral counseling by trained C/MHC dieticians on lifestyle modification; and home BP monitoring to activate patients in their own care. The physician intervention comprises online continuing medical education (CME) courses on management of HTN based on the Joint National Committee-7 (JNC-7) guidelines; online HTN rounds or case conferences with HTN specialists; and feedback to physicians on clinical performance measures via computerized decision support systems. The intervention will be delivered to patients every 3 months during regular office visits for 12 months, while the physician intervention will occur every month for the duration of the trial. Patients and physicians at the usual care C/MHCs will receive NHLBI patient education materials and print versions of JNC-7 guidelines respectively.

The primary outcome is the proportion of patients with adequate BP control at 12 months in each condition as defined by JNC-7 criteria (BP less than 130/80 mm Hg for patients with diabetes or kidney disease; and BP less than 140/90 mm Hg for all other patients). The secondary outcomes are within-patient change in systolic BP and diastolic BP from baseline to 12 months; the maintenance of the intervention effects one year after trial; and the cost effectiveness of the intervention at 12 months. The long-term goal of this project is to refine the intervention as a result of the data obtained and to develop a standardized protocol that can be integrated into the usual care procedures of the C/MHCs. Thus, maximizing the likelihood that the intervention will be translated into practice, at each of the participating Community Health Centers.

Being tested
Multicomponent, multi-level intervention targeted at physicians and patients, Usual Care
Medical subject headings
Cardiovascular Diseases, Hypertension

What participants receive

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

  • Multicomponent, multi-level intervention targeted at physicians and patientsBehavioural

    The patient intervention will include an innovative patient education approach known as Self-Paced Programmed Instruction that will be used to educate patients on knowledge of HTN; behavioral counseling by trained C/MHC dieticians on lifestyle modification; and home BP monitoring to activate patients in their own care. The physician intervention comprises online continuing medical education (CME) courses on management of HTN based on the Joint National Committee-7 (JNC-7) guidelines; online HTN rounds or case conferences with HTN specialists; and feedback to physicians on clinical performance measures via computerized decision support systems. The intervention will be delivered to patients every 3 months during regular office visits for 12 months, while the physician intervention will occur every month for the duration of the trial.

  • Usual CareBehavioural

    Patients will receive usual care.

Study groups in NCT00233220
Study groupRoleWhat they receive
1ExperimentalPatients and doctors will take part in a multicomponent, multi-level intervention.
Receives: Behavioral: Multicomponent, multi-level intervention targeted at physicians and patients
2Active comparatorPatients will receive usual care.
Receives: Behavioral: Usual Care

What is being measured

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

  1. Control BP

    Measured: Measured at Year 1

Secondary outcomes (3)
  1. Change in systolic BP and diastolic BP

    Measured: Measured at Year 1

  2. Maintenance of the intervention effects

    Measured: Measured at Year 1

  3. Cost effectiveness of the intervention

    Measured: Measured at Year 1

Timeline

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

  1. First posted5 Oct 2005 (estimated)
  2. Study startSep 2004
  3. Primary completionMar 2010
  4. Study completionMar 2010

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
None (open label)
Enrolment
1,039 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00233220
Sponsor's protocol ID
322
Other IDs
R01HL078566
Status last verified
Feb 2014
First submitted
3 Oct 2005
Last updated
13 Feb 2014
Results posted
No
Data monitoring committee
Yes

Publications

  • Ogedegbe G, Tobin JN, Fernandez S, Gerin W, Diaz-Gloster M, Cassells A, Khalida C, Pickering T, Schoenthaler A, Ravenell J. Counseling African Americans to Control Hypertension (CAATCH) trial: a multi-level intervention to improve blood pressure control in hypertensive blacks. Circ Cardiovasc Qual Outcomes. 2009 May;2(3):249-56. doi: 10.1161/CIRCOUTCOMES.109.849976.

    PubMed 20031845
  • Fernandez S, Tobin JN, Cassells A, Diaz-Gloster M, Kalida C, Ogedegbe G. The counseling African Americans to Control Hypertension (CAATCH) Trial: baseline demographic, clinical, psychosocial, and behavioral characteristics. Implement Sci. 2011 Sep 1;6:100. doi: 10.1186/1748-5908-6-100.

    PubMed 21884616
  • Forsyth J, Schoenthaler A, Chaplin WF, Ogedegbe G, Ravenell J. Perceived discrimination and medication adherence in black hypertensive patients: the role of stress and depression. Psychosom Med. 2014 Apr;76(3):229-36. doi: 10.1097/PSY.0000000000000043.

    PubMed 24677163
  • Ogedegbe G, Tobin JN, Fernandez S, Cassells A, Diaz-Gloster M, Khalida C, Pickering T, Schwartz JE. Counseling African Americans to Control Hypertension: cluster-randomized clinical trial main effects. Circulation. 2014 May 20;129(20):2044-51. doi: 10.1161/CIRCULATIONAHA.113.006650. Epub 2014 Mar 21.

    PubMed 24657991

Questions about this trial

What is this clinical trial studying?

A study testing Multicomponent, multi-level intervention targeted at physicians and patients in people with Cardiovascular Diseases and Hypertension, run by NYU Langone Health 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 2 inclusion and 0 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 13 Feb 2014. 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?

Control BP (time frame: Measured at Year 1). 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 NCT00233220, which also lists 4 linked publications.

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 13 Feb 2014.

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