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Miami Healthy Heart Initiative a Behavioral Study on Cardiovascular Risk Factors (MHHI)
Miami Healthy Heart Initiative (MHHI) a Randomized Study of Behavioral Risk Factors for Cardiovascular Disease in Latino and Hispanic Patients With Poorly Controlled Diabetes
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Disparities in the epidemiology of cardiovascular disease (CVD) risk factors among Latinos have been extensively described; however, traditional medical models of CVD risk reduction have not been very effective in Latinos. One promising strategy is the use of community-based community health workers (CHWs). CHWs have long been used in Latin-America as an integral part of their health care delivery system. Further, preliminary data from our prior pilot diabetes self-management CHW program have shown improvements in lipids. However, because of a lack of effectiveness data from studies using rigorous experimental designs, the adoption of the CHW model has been quite limited both locally and nationally. In MHHI, our goal is to examine the effectiveness of a CHW intervention in CVD risk reduction among Latinos.
The investigators propose to examine the effectiveness of a multilevel CHW intervention as an adjunct to routine primary care in reducing CVD risk factors among diabetic Latinos Miami. The UM Jay Weiss Center which has substantial experience in Community Health Worker Program will take the lead role in the development and implementation intervention of the CHW program.
The study design is a randomized controlled trial (RCT) of 300 Latino patients ages 35-70 with poorly controlled diabetes (AIC >=8.0) followed at the Ambulatory Care Clinic (ACC) of Jackson Memorial Hospital (JMH).
Primary Objective: To determine if the CHW intervention results in lowering of CVD risk factors including blood pressure, LDL cholesterol, and diabetes control (AIC) as measured by the Total Framingham Risk Score (FRS).
Secondary Objectives: To determine if the CHW intervention results in improvements in the following putative mechanisms that may influence the FRS:
- Medication adherence (measured by validated instruments)
- Improvements in diet and exercise (as measured by validated instruments);
Hypotheses: Among patients receiving care at the ACC we hypothesize that as compared to those in enhanced usual care, patients randomized to the CHW intervention at 18 months will have:
- Greater reductions in blood pressure and low density lipoprotein (LDL)
- Improved glycemic control
- Greater rates of medication adherence (taking >80% of specified medication doses)
- Increases in physical activity (kcal/week)
- Increases in mean number of daily vegetables consumed
The CHW intervention will involve 4 or more (as required) home visits, 10 group sessions, an 10 follow-up phone calls per subject over a 12-month time period. The primary outcome is a HgA1C; secondary outcomes include LDL levels, and systolic and diastolic blood pressure. Baseline and follow-up data on medication adherence, medication intensification, diet and exercise will also be collected.
The control group will continue to receive usual care from their primary care physician. We will enhance the usual care that these patients receive by providing them with three sets of educational materials published by the NIH.
Studietype
Inschrijving (Werkelijk)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
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Florida
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Miami, Florida, Verenigde Staten, 33136
- University of Miami
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Adult patients age 35-70 years
- Receiving care at ACC clinic (2 visits with a primary care provider in the previous year)
- Living in Miami-Dade county (based on zip codes)
- Had a hemoglobin A1C done within the past year, with the latest value being >=8.0
Exclusion Criteria:
- Patients whose Primary Doctor believes are not appropriate candidates for participation
- Type 1 diabetics (identified by Primary Doctor or those with diabetes diagnosed when under age 25).
- Patients who do not self identify as Hispanic
- Any life-threatening or extreme medical comorbidity
- Having a diabetes diagnosis for less than a year
- Planning to move out of the neighborhood during the next year
- Participation in any other CVD or diabetes intervention study
- Arm circumference of greater than 47 cm (oscillometric cuffs do not give accurate readings)
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Ondersteunende zorg
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
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Experimenteel: Community Health Worker Model
Care, Attention, Resources, Information, Nutrition and Optimism Project (CARIÑO Project) will provide outreach support services to patients with poorly controlled diabetes, such as health education, lifestyle changes, home visits, follow-up phone calls, support groups, one on one counseling and coaching, and assistance with resource referrals.
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Care Attention Resources Information Nutrition & Optimism Project (CARIÑO) is a CHW intervention that will involve 4 or more (as required) home visits, 10 group sessions, and 10 follow-up phone calls per subject over a 12-month period.
The primary outcome is lower HgA1C levels.
The secondary outcomes are to lower LDL levels, and systolic and diastolic blood pressure, medication adherence and improved diet and exercise.
CARIÑO Project will provide outreach support services to patients with poorly controlled diabetes, such as health education, lifestyle changes, home visits, follow-up phone calls, support groups, one on one counseling and coaching, and assistance with resource referrals.
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Actieve vergelijker: Enhanced Usual Care
Usual Care and mailing of 4 health education brochures over the year.
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Usual care plus 4 health education brochures
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Glycemic Control
Tijdsspanne: 12 months.
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A1C
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12 months.
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Blood Pressure
Tijdsspanne: 12 months
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SBP
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12 months
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Cholesterol
Tijdsspanne: 12 months
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LDL
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12 months
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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Olveen Carrasquillo, MD, MPH, University of Miami
Publicaties en nuttige links
Algemene publicaties
- Carrasquillo O, Patberg E, Alonzo Y, Li H, Kenya S. Rationale and design of the Miami Healthy Heart Initiative: a randomized controlled study of a community health worker intervention among Latino patients with poorly controlled diabetes. Int J Gen Med. 2014 Feb 27;7:115-26. doi: 10.2147/IJGM.S56250. eCollection 2014.
- Kenya S, Lebron CN, Chang AY, Li H, Alonzo YA, Carrasquillo O. A profile of Latinos with poorly controlled diabetes in South Florida. J Community Hosp Intern Med Perspect. 2015 Apr 1;5(2):26586. doi: 10.3402/jchimp.v5.26586. eCollection 2015.
- Lebron CN, Reyes-Arrechea E, Castillo A, Carrasquillo O, Kenya S. Tales from the Miami Healthy Heart Initiative: the experiences of two community health workers. J Health Care Poor Underserved. 2015 May;26(2):453-62. doi: 10.1353/hpu.2015.0033.
- Chang A, Kenya S, Ilangovan K, Li H, Koru-Sengul T, Alonzo Y, Carrasquillo O. Is greater acculturation associated with an increased prevalence of cardiovascular risk factors among Latinos in South Florida? Med Care. 2015 May;53(5):417-22. doi: 10.1097/MLR.0000000000000337.
- Carrasquillo O, Lebron C, Alonzo Y, Li H, Chang A, Kenya S. Effect of a Community Health Worker Intervention Among Latinos With Poorly Controlled Type 2 Diabetes: The Miami Healthy Heart Initiative Randomized Clinical Trial. JAMA Intern Med. 2017 Jul 1;177(7):948-954. doi: 10.1001/jamainternmed.2017.0926.
- Chang A, Patberg E, Cueto V, Li H, Singh B, Kenya S, Alonzo Y, Carrasquillo O. Community Health Workers, Access to Care, and Service Utilization Among Florida Latinos: A Randomized Controlled Trial. Am J Public Health. 2018 Sep;108(9):1249-1251. doi: 10.2105/AJPH.2018.304542. Epub 2018 Jul 19.
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Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- 20090751
- 7R01HL083857-02 (Subsidie/contract van de Amerikaanse NIH)
Plan Individuele Deelnemersgegevens (IPD)
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Beschrijving IPD-plan
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