- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02251834
Hispanic Secondary Stroke Prevention Initiative (HISSPI)
Stroke is a leading cause of death and functional impairments and stroke risk factors (SRFs) disproportionately affect Latino populations. In the Hispanic Secondary Stroke Prevention Initiative (HISSPI) the investigators propose a study using Community Health Workers (CHW) and mobile technologies using cell phones to reduce the risk for a recurrent stroke among Latino stroke patients.
The project examines the effectiveness of a combined multilevel intervention consisting of Community Health Workers (CHW) and mobile based phone technologies in lowering of systolic blood pressure (SBP) which is the most important risk factor for recurrent stroke.
Study Overview
Status
Conditions
Detailed Description
Stroke is the fourth leading cause of death, and the main cause of adult disability in the US. As the population ages, over the next 3 decades the number of strokes is expected to double. At the same time, the Hispanic population, currently the largest minority group in the US is expected to double. The rapid growth and aging of Hispanics will lead to dramatic future increases in the public health impact of stroke. This group of investigators and others have extensively described the disproportionate burden of stroke and stroke risk factors (SRFs) (e.g. blood pressure, diabetes, and lipids) among Hispanics. Over the last two decades, community health workers (CHWs) have emerged as one of the more promising strategies at addressing Latino health disparities. However, evidence from randomized controlled trials (RCTs) supporting this approach remains limited. Recent technology based interventions, particularly those using mobile-based platforms (e.g. phone text messaging), have shown tremendous potential at improving outcomes among minority populations. This team's ongoing line of investigation is testing Community Health Workers (CHWs) interventions through rigorous randomized controlled trials (RCTs) aimed at improving clinical outcomes for a variety of health conditions including diabetes, cancer and Human Immunodeficiency Virus (HIV) disease. The investigators are also leading several studies addressing ProMobile technologies among minority elders. To date, preliminary data suggests each of these two approaches independently may lead to considerable improvements in some stroke risk factors (SRFs). However, evidence for the use of these combined approaches from studies using rigorous experimental designs for most health conditions has been limited. Further, data on these promising interventions among Hispanic stroke patients remains a major gap in the field of stroke disparities.
In the Hispanic Secondary Stroke Prevention Intervention (HISSPI),the investigators propose a translational research study addressing minority health in the form of a pragmatic clinical trial aimed at improving health outcomes among Latinos. The project extends their ongoing work with Community Health Workers (CHWs) and mobile phone technologies to examine the effectiveness of this combined multilevel intervention as an adjunct to routine health care targeting stroke risk factors (SRFs) among Hispanic patients having had a recent stroke. The investigators focus on this group of patients because they have an over 25% risk of recurrent stroke in the next five years, with the second stroke often being much more debilitating than the first stroke.
The study will be conducted at two hospitals in Miami-Dade county (one public, one private). With a highly diverse Latino population, both Caribbean and Central/South Americans, Miami is an ideal laboratory to test such an approach in an immigrant community facing numerous distinct barriers to quality stroke care. Hispanic Secondary Stroke Prevention Initiative (HISPPI) also leverages existing resources, including those of the recently funded Florida Puerto Rico Collaboration to Reduce Stroke Disparities and the Clinical Translational Science Award (CTSA). The investigators expect this translational research to provide new insights on approaches that can transform medical practice and improve health outcomes in Latino populations; particularly, in the context of ongoing reforms in health care delivery. The study design is a randomized controlled trial (RCT) of 300 Latino stroke patients admitted with an ischemic or hemorrhagic stroke, having a minimal to moderate disability as a result of the stroke but whom are ambulatory modified Rankin Scale (mRS) <=3.
Primary Objectives: Based on evidence based guidelines to prevent a recurrent stroke, the investigators will determine if the proposed intervention results in improved systolic blood pressure among the intervention versus usual care group. Blood pressure management is the single most important risk factor for preventing a recurrent stroke.
Secondary Objectives: The investigators will also examine if the proposed intervention results in improvements in other secondary stroke risk factors including low density lipoprotein, adherence to statin therapy,adherence to antiplatelet/anti-thrombotic therapy, and among patients with diabetes, better glycemic control.
Additional outcomes: As hypothesis generating analyses, the investigators will examine, the following outcomes:
- Quality of Life
- Health Care utilization (visits to primary care providers and stroke specialists)
- Proportion of patients re-hospitalized for recurrent stroke
Hypotheses: Consistent with guidelines on systolic blood pressure (SBP) reductions that would lead to clinically meaningful reductions in recurrent stroke risk, the investigators hypothesize that at 12 months, as compared to usual care, patients randomized to the Community Health Worker (CHW) ProMobile intervention will have a systolic blood pressure that is 8mmHg lower. Least detectable differences for secondary outcomes: With 300 patients, the investigators will have over 80% power to detect differences in intervention versus control group of 1) Low-density lipoprotein (LDL) that is 13ml/dl lower 2) 15% greater adherence to statin and antiplatelet/thrombotic therapy 3) among the subset having diabetes, glycated haemoglobin (HbA1c) that is 0.9% lower.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Florida
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Miami, Florida, United States, 33136
- University of Miami
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- 18 years of age and older
- History of an ischemic or intra-cerebral hemorrhagic stroke within the past five years
- Be Hispanic/Latino on self report
- modified Rankin Scale (mRs) ≤ 3
- Reside in Miami-Dade County
Exclusion Criteria:
- Any life-threatening morbidity including an active cancer diagnosis
- Enrollment in other non acute stroke, cardiovascular, diabetes study
- Patients with an arm circumference of ≥47 cm
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Supportive Care
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Community Health Worker
Community Health Worker (CHW) home visits, coaching phone calls, group sessions .
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The primary mechanism used by the Community Health Worker (CHW) for delivering interventions will be a) home visits b) phone based contacts c) group level activities d) mobile technology.
Ideally, each subject will have, at a minimum, 4 home visits and ten phone calls during months 3-12.
Group visits will held twice a month.
The Community Health Worker (CHW) intervention will be highly individualized and tailored to unique circumstances of each patient and we expect home visits, calls, ProMobile usage and group visits to vary by patient.
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Other: Usual Care
usual care and health education brochures every 4 months.
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Patients randomized to the control group will receive usual care.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Blood Pressure
Time Frame: one year
|
Our primary hypothesis is that at twelve months, patients in the intervention arm will have SBP on average, 8mmHg lower than those in the control group.
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one year
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
LDL
Time Frame: one year
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Achieving an LDL-C level of 70 mg/dL is associated with a 28% stroke risk reduction and stroke patients with a 50% reduction in LDL-C had a 35% reduction in combined risk of nonfatal and fatal stroke.
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one year
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Self-reported adherence to statins and anti-platelet medications
Time Frame: one year
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Morisky medication adherence scale
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one year
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A1C
Time Frame: one year
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among patients having diabetes we will measure A1C
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one year
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Olveen Carrasquillo, MD, MPH, University of Miami
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 20140423
- R01MD009164 (U.S. NIH Grant/Contract)
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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