Blood Pressure Control in African Americans

NCT ID: NCT00233220

Last Updated: 2014-02-13

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 1039 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2004-09-30
• Study Completion Date: 2010-03-31

Brief 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).

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.

Conditions

Cardiovascular Diseases; Hypertension

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

1

Patients and doctors will take part in a multicomponent, multi-level intervention.

Group Type: EXPERIMENTAL

Multicomponent, multi-level intervention targeted at physicians and patients

Intervention Type: BEHAVIORAL

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.

2

Patients will receive usual care.

Group Type: ACTIVE_COMPARATOR

Usual Care

Intervention Type: BEHAVIORAL

Patients will receive usual care.

Interventions

Multicomponent, multi-level intervention targeted at physicians and patients

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.

Intervention Type: BEHAVIORAL

Usual Care

Patients will receive usual care.

Intervention Type: BEHAVIORAL

Eligibility Criteria

Inclusion Criteria

• Uncontrolled Hypertension
• African American

• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

National Heart, Lung, and Blood Institute (NHLBI)

NIH

Sponsor Role: collaborator

NYU Langone Health

OTHER

Sponsor Role: lead

Responsible Party

Gbenga Ogedegbe

Professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Gbenga G Ogedegbe, MD

Role: PRINCIPAL_INVESTIGATOR

NYU School of Medicine

Locations

NYU School of Medicine

New York, New York, United States

Countries

United States

References

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.

Reference Type: BACKGROUND

PMID: 20031845 (View on PubMed)

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.

Reference Type: BACKGROUND

PMID: 21884616 (View on PubMed)

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.

Reference Type: DERIVED

PMID: 24677163 (View on PubMed)

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.

Reference Type: DERIVED

PMID: 24657991 (View on PubMed)

Other Identifiers

R01HL078566

Identifier Type: NIH

Identifier Source: secondary_id

View Link

322

Identifier Type: -

Identifier Source: org_study_id