Management of Hypertension Utilizing Trained Community Health Worker in Rural Municipalities of Nepal

Study Overview
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Brief Summary
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The investigators will evaluate whether a system involving Female Community Health Volunteers (FCHVs) and facility-based community health workers (FB-CHWs) of Health Post (Auxiliary Health Workers, Auxiliary Nurse Midwives and Health Assistant) can contribute to improving hypertension care in rural Nepal. This study will be conducted in Rupa (active group) and Biruwa (comparison group) Rural Municipality of Gandaki province and enroll at least 736 hypertensive adults (322 in Rupa Rural Municipality and 414 in Biruwa Rural Municipality) who are aged 25-70 years, not taking antihypertensive medication, not pregnant and not breastfeeding, free of prior cardiovascular disease, chronic kidney disease, and diabetes. In Rupa Municipality, eligible participants will be able to receive amlodipine, one of the most frequently used antihypertensive medications, from FB-CHWs at Health Posts and five times (including baseline and end of study) of lifestyle counseling by FCHVs, whereas participants in Biruwa Municipality will receive the usual care plus three times (including baseline and end of study) of lifestyle counseling by FCHVs.

Detailed Description
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Despite a large body of evidence on the effectiveness of hypertension treatment in reducing cardiovascular morbidity and mortality, the control rate of hypertension is low in many low and middle-income countries. The shortage of skilled workforce diagnosing and managing hypertension is one of the major barriers. A promising option is to involve community health workers (CHWs) in hypertension care, who have shown promising results for improving maternal and child health. However, the evidence on whether CHWs can diagnose and treat hypertension under the supervision of a physician has not been systematically tested. Thus, this study will evaluate whether existing Facility Based-Community Health Workers (FB-CHWs) and Female Community Health Volunteers (FCHVs) of the Ministry of Health can safely and effectively diagnose hypertension and initiate/maintain protocol-based hypertension treatment. This study will be conducted in Rupa (active group) and the Biruwa (comparison group) Rural Municipality of Gandaki province. All adults aged 25-70 years of age who reside in the Rupa and Biruwa municipalities are eligible for the initial screening by data enumerators of the Nepal Development Society (NeDS). Only eligible participants who meet the inclusion criteria will participate in the study. Rupa Rural Municipality will allow the initiation of antihypertensive medication (amlodipine) by FB-CHW at Health Posts under the supervision of a study physician. Biruwa Rural Municipality will follow usual care, which is a referral to healthcare facilities currently providing hypertension care. FCHVs will provide lifestyle counseling and follow up the adherence to hypertension treatment three times in Rupa Rural Municipality and once in Biruwa Rural Municipality.FCHV in Rupa Rural Municipality will make three home visits (at 3, 6, and 9 months) whereas FCHV in Biruwa Rural Municipality will make one home visit after 3 months of baseline. The end of the study survey will be carried out after one year by FCHV and NeDS data enumerators. The primary study outcome is a net change in systolic blood pressure among hypertensive participants 12-months after confirming hypertension in the active vs. the comparison group.

Official Title
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Management of Hypertension Utilizing Trained Community Health Worker in Rural Municipalities of Nepal (MUTU) Study

Conditions
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Hypertension,Essential

Intervention / Treatment
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* Drug: Amlodipine
* Behavioral: Lifestyle counselling


Participation Criteria
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Eligibility Criteria
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Inclusion criteria Between 25-70 years old Systolic blood pressure 140-179 mmHg or diastolic blood pressure 90-119 mmHg Do not have a plan to leave the study municipality within a year Exclusion criteria Use of antihypertensive medication in the last two weeks History of stroke, heart attack, heart failure, or chronic kidney disease History of diabetes meritus Pregnant or any plan to be pregnant in a year Breastfeeding

Ages Eligible for Study
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Minimum Age: 25 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Active Group<br>Participants will be first screened for their blood pressure and asked a few questions to determine eligibility. For eligible participants, FCHV will visit within  1 week and measure blood pressure again. If found high, the participant will be referred to the nearest Health Post. At the Health Posts, if FB-CHWs confirms the diagnosis of hypertension, they will prescribe amlodipine 5 mg/d according to the study protocol and ask the patient to return in  2 weeks. If blood pressure is controlled (<140/90 mmHg) after  2 weeks, FB-CHWs will refill amlodipine 5 mg/d for 3 months. If not, FB-CHWs will increase the dose to 10 mg/d and follow up in  2 weeks. If still not controlled with amlodipine 10 mg, FB-CHWs will refer the patient to the Regional Hospital in Pokhara. In addition, FCHVs will visit patients' homes 3 times (at 3-, 6-, and 9-month), provide lifestyle counseling, and follow up the adherence to hypertension treatment. | Drug: Amlodipine<br>* The facility-based community health worker will receive protocol-driven training to initiate amlodipine for hypertensive patients. These patients will receive lifestyle counseling by Female Community Health Volunteer through home visits (5 times [including baseline and end of the study] in the active municipality and 3 times [including baseline and end of the study] in the control municipality).<br>Behavioral: Lifestyle counselling<br>* Female Community Health Volunteer will provide lifestyle counseling at the participant's home<br>|
| Active Comparator: Comparison Group<br>Participants will be first screened for their blood pressure and asked a few questions to determine eligibility. For eligible participants, FCHV will visit within a week or so and measure the blood pressure again. If found high, the participant will be referred to a healthcare facility (the usual care) which can diagnose and manage hypertension. In addition, FCHVs will visit patients' homes once (around 3-month), provide lifestyle counseling, and follow up the adherence to hypertension treatment. | Behavioral: Lifestyle counselling<br>* Female Community Health Volunteer will provide lifestyle counseling at the participant's home<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Mean change in systolic blood pressure | To assess the longitudinal association of the intervention with changes in blood pressure over time, linear mixed effect models with a three-level hierarchical approach will be used. | One year | 
| Mean change in diastolic blood pressure | To assess the longitudinal association of the intervention with changes in blood pressure over time, linear mixed effect models with a three-level hierarchical approach will be used. | One year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of hypertension control (<140/90) among study participants | Systolic blood pressure <140 mmHg and diastolic blood pressure <90 mmHg | One year | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Hypertension, Community Health Worker, Medication, Amlodipine, Nepal