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HypertensionNCT03892265

A Longitudinal Cohort Study to Evaluate Cardiovascular Risk Factors and Disease in Haiti

An observational study of Hypertension and Diabetes, run by Weill Medical College of Cornell University at 1 site in Haiti.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

Investigators will establish a longitudinal cohort of ~3,000 adults >18 years in Port-au-Prince using multistage random sampling, and follow them longitudinally to evaluate the prevalence and incidence of cardiovascular disease risk factors and diseases. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hypertension, Diabetes, Obesity
What is being tested?
Observational Study
How many people
3,005 participants
Where
1 siteHaiti
Study dates
8 Mar 2019to 1 Aug 2028
Phase
Observational
Are there results?
Not yet: the study is under way

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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: The study population will include 3,000 adults >=18 years from a population-representative sample. Participants will be selected via multistage random sampling. Investigators will randomly select approximately 2,045 GPS waypoints across census blocks with the number of waypoints per block proportional to the IHSI estimated population size of each block. GPS waypoints will be randomly selected from satellite area maps, using ArcGIS software, and identified with GPS devices.

Who may be able to join

  • age > or = 18 years, primary residence in the study area of Port-au-Prince (defined as having slept at the household at least once in the past two weeks and considers the household their primary residence with no plans to move in the next 24 months),
  • able to provide consent for study procedures,
  • agrees to study procedures, and
  • willing to be contacted at a new residence if a move occurs

Who cannot join

  • serious medical conditions or cognitive impairment preventing study participation as judged by research physicians,
  • unable to speak and understand French or Creole.

Trial locations and contacts

1 site in 1 country.

Haiti1 site
  • Les Centres GHESKIO

    Port-au-Prince, West

Other trials in Haiti

About this study

Investigators will establish a longitudinal cohort of ~3,000 adults >18 years in Port-au-Prince using multistage random sampling, and follow them longitudinally to evaluate the prevalence and incidence of cardiovascular disease risk factors and diseases. Cardiovascular risk factors include hypertension, diabetes, obesity, dyslipidemia, kidney disease, poor diet, cigarette smoking, physical inactivity, and inflammation. Cardiovascular disease include angina and myocardial infarction, heart failure, stroke, and CVD mortality. It is anticipated that hypertension prevalence will be ≥10% in 18-30 year olds, that hypertension incidence will be >10 events/1000 person years. Association of determinants and risk factors with CVD will also be examined. Whole blood, serum, plasma, stool, and urine samples will be biobanked for future studies.

Read the detailed description

Investigators propose a longitudinal observational study which includes establishing a population-based longitudinal cohort to determine the prevalence and incidence of cardiovascular risk factors and diseases in Haiti. Cardiovascular risk factors include hypertension, diabetes, obesity, kidney disease, dyslipidemia, smoking, alcohol use, physical inactivity, poor diet, and inflammation. Cardiovascular diseases include angina and myocardial infarction, heart failure, stroke and cardiac death. The cohort will include ~3,000 adults (>18 years) living in Port-au-Prince who will be followed longitudinally. Participants will be selected via multistage random sampling using census blocks . The GHESKIO Community Advisory Board and GHESKIO community health workers (CHWs) will conduct community sensitization about the study prior to study recruitment. CHWs will introduce the study to selected households and individuals, who will then be referred to the research team at GHESKIO for informed consent and study enrollment procedures. Participants will complete the study enrollment, 12- and 24-month, in addition to subsequent annual study visits at GHESKIO. These study visits include a study questionnaire, measurement of blood pressure and assessment for cardiovascular symptoms and events. Laboratory measures and an electrocardiogram will be done at study enrollment and the 24-month visit, and subsequently every 2 years. Participants will also provide blood, urine and stool samples for biobanking at study enrollment. Blood and urine will be collected at 24, 48 and 72 months, with stool also collected at 72 months. CHWs will perform home visits every 6 months on all participants to update locator information, measure blood pressure, and ask about cardiovascular symptoms and events. CHWs will also call the participant every three months to confirm contact information. Any participant who reports a cardiovascular symptom or event to research staff at any time during the study will be referred to the GHESKIO clinic or to a GHESKIO-affiliate hospital for clinical care. The research team will abstract data from medical records of referred patients on information regarding diagnosis codes, laboratory results, diagnostic imaging and cause of death.

Being tested
Observational Study
Medical subject headings
Hypertension, Diabetes Mellitus, Obesity, Kidney Diseases, Dyslipidemias, Smoking, Alcohol Drinking, Sedentary Behavior

What participants receive

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

  • Observational StudyOther

    No intervention is included in this observational study.

What is being measured

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

  1. Prevalence of CVD risk factors and diseases and their association with social and environmental determinants in an established longitudinal cohort of ~3,000 Haitian adults

    The prevalence of CVD risk factors including HTN, diabetes, obesity, cigarette smoking, dyslipidemia, kidney disease, poor diet, physical inactivity, and inflammation will be calculated. Prevalence will be reported for categorical risk factors (e.g., HTN), and mean and standard deviation will be estimated for continuous risk factors (e.g., BP, lipid levels). The research team will also estimate the prevalence of each CVD outcome including MI, HF, and stroke.

    Measured: Baseline

Secondary outcomes (1)
  1. Incidence of CVD risk factors and CVD during ~7 years of follow-up and their association with social and environmental determinants

    Investigators will calculate the incidence rate of each CVD risk factor per 1000 person years (PY) of follow-up among participants without the respective CVD risk factor at baseline using a Horvitz-Thompson type estimator accounting for unequal sampling weights. Similarly, investigators will calculate the incidence rate of each CVD outcome among participants without the respective CVD at baseline.

    Measured: Participants will be followed for ~7 years

Timeline

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

  1. First posted27 Mar 2019
  2. Study start8 Mar 2019
  3. Primary completion1 Aug 2028 (estimated)
  4. Study completion1 Aug 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
3,005 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03892265
Sponsor's protocol ID
1803019037
Other IDs
R01HL143788
Status last verified
Feb 2026
First submitted
25 Mar 2019
Last updated
12 Feb 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: All the individual participant data collected during the trial, after deidentification will be shared.

Publications

  • Metz M, Pierre JL, Yan LD, Rouzier V, St-Preux S, Exantus S, Preval F, Roberts N, Tymejczyk O, Malebranche R, Deschamps MM, Pape JW, McNairy ML. Hypertension continuum of care: Blood pressure screening, diagnosis, treatment, and control in a population-based cohort in Haiti. J Clin Hypertens (Greenwich). 2022 Mar;24(3):246-254. doi: 10.1111/jch.14399. Epub 2022 Feb 24.

    PubMed 35199944
  • Sufra R, Lookens Pierre J, Dade E, Rouzier V, Apollon A, St Preux S, Preval F, Inddy J, Metz M, Tymejczyk O, Nash D, Malebranche R, Deschamps M, Pape JW, Goncalves MD, McNairy ML, Yan LD. Diabetes Epidemiology Among Adults in Port-au-Prince, Haiti: A Cross-Sectional Study. Front Endocrinol (Lausanne). 2022 Feb 24;13:841675. doi: 10.3389/fendo.2022.841675. eCollection 2022.

    PubMed 35282460
  • Clermont A, Sufra R, Pierre JL, Mourra MN, Fox EL, Rouzier V, Dade E, St-Preux S, Inddy J, Erline H, Obed FP, Yan LD, Metz M, Lee MH, Fitzgerald DW, Deschamps MM, Pape JW, McNairy ML. Dietary Risk Factors for Cardiovascular Disease among Low-Income Haitian Adults: Findings from a Population-Based Cohort. Nutrients. 2022 Feb 13;14(4):787. doi: 10.3390/nu14040787.

    PubMed 35215437
  • Yan LD, Rouzier V, Pierre JL, Lee MH, Muntner P, Parsons PJ, Apollon A, St-Preux S, Malebranche R, Pierre G, Emmanuel E, Nash D, Kingery J, Walsh KF, Smith CE, Metz M, Tymejczyk O, Deschamps M, Pape JW, Fitzgerald DW, McNairy ML. High Lead Exposure Associated With Higher Blood Pressure in Haiti: a Warning Sign for Low-Income Countries. Hypertension. 2022 Jan;79(1):283-290. doi: 10.1161/HYPERTENSIONAHA.121.18250. Epub 2021 Nov 17.

    PubMed 34878898
  • Lookens J, Tymejczyk O, Rouzier V, Smith C, Preval F, Joseph I, Baptiste RJ, Victor J, Severe P, Apollon S, Dumont E, Forestal G, St Preux S, Rivera V, Seo G, Charles B, Ariste W, Kingery J, Devieux J, Koenig S, Nash D, Fitzgerald D, Safford M, Deschamps MM, Pape J, McNairy M. The Haiti cardiovascular disease cohort: study protocol for a population-based longitudinal cohort. BMC Public Health. 2020 Nov 1;20(1):1633. doi: 10.1186/s12889-020-09734-x.

    PubMed 33131500
  • Yan LD, Lookens Pierre J, Rouzier V, Theard M, Apollon A, St Preux S, Kingery JR, Jamerson KA, Deschamps M, Pape JW, Safford MM, McNairy ML. Comparing six cardiovascular risk prediction models in Haiti: implications for identifying high-risk individuals for primary prevention. BMC Public Health. 2022 Mar 19;22(1):549. doi: 10.1186/s12889-022-12963-x.

    PubMed 35305599
  • Smith CE, Metz M, Lookens Pierre J, Rouzier V, Yan LD, Sufra R, Dade E, Preval F, Ariste W, Rivera V, Tymejczyk O, Peck R, Koenig S, Deschamps MM, Pape W, McNairy ML. Comparison of community and clinic-based blood pressure measurements: A cross-sectional study from Haiti. PLOS Glob Public Health. 2022;2(9):e0001064. doi: 10.1371/journal.pgph.0001064. Epub 2022 Sep 30.

    PubMed 36285251
  • Yan LD, Devieux JG, Pierre JL, Dade E, Sufra R, St Preux S, Tymejczyk O, Nash D, Metz M, Lee MH, Fitzgerald DW, Deschamps M, Pape JW, McNairy ML, Rouzier V. The relationship between perceived stress and support with blood pressure in urban Haiti: A cross-sectional analysis. PLOS Glob Public Health. 2022;2(5):e0000263. doi: 10.1371/journal.pgph.0000263. Epub 2022 May 2.

    PubMed 35785017
  • Dade E, Metz M, Pierre JL, Rouzier V, Sufra R, Fox E, Preval F, St-Preux S, Zephir JR 2nd, Ariste W, Rasul R, Sabwa S, Roberts N, Deschamps MM, Severe P, Fitzgerald D, Pape JW, Yan LD, McNairy ML. High prevalence of obesity among women in urban Haiti: Findings from a population-based cohort. Front Public Health. 2022 Oct 5;10:976909. doi: 10.3389/fpubh.2022.976909. eCollection 2022.

    PubMed 36276356
  • Clermont A, Rouzier V, Pierre JL, Sufra R, Dade E, Preval F, St-Preux S, Deschamps MM, Apollon A, Dupnik K, Metz M, Duffus Y, Sabwa S, Yan LD, Lee MH, Palmer LG, Gerber LM, Pecker MS, Mann SJ, Safford MM, Fitzgerald DW, Pape JW, McNairy ML. High Dietary Sodium, Measured Using Spot Urine Samples, is Associated with Higher Blood Pressure among Young Adults in Haiti. Glob Heart. 2023 Feb 14;18(1):5. doi: 10.5334/gh.1187. eCollection 2023.

    PubMed 36817226
  • Kingery JR, Roberts NL, Lookens Pierre J, Sufra R, Dade E, Rouzier V, Malebranche R, Theard M, Goyal P, Pirmohamed A, Yan LD, Hee Lee M, Nash D, Metz M, Peck RN, Safford MM, Fitzgerald D, Deschamps MM, Pape JW, McNairy M. Population-Based Epidemiology of Heart Failure in a Low-Income Country: The Haiti Cardiovascular Disease Cohort. Circ Cardiovasc Qual Outcomes. 2023 Feb;16(2):e009093. doi: 10.1161/CIRCOUTCOMES.122.009093. Epub 2022 Dec 6.

    PubMed 36472189
  • Rasul R, Rouzier V, Sufra R, Yan LD, Joseph I, Mourra N, Sabwa S, Deschamps MM, Fitzgerald DW, Pape JW, Nash D, McNairy ML. Extreme Food Insecurity and Malnutrition in Haiti: Findings from a Population-Based Cohort in Port-au-Prince, Haiti. Nutrients. 2022 Nov 17;14(22):4854. doi: 10.3390/nu14224854.

    PubMed 36432540
  • Yan LD, McNairy ML, Devieux JG, Pierre JL, Dade E, Sufra R, Gerber LM, Roberts N, St Preux S, Malebranche R, Metz M, Tymejczyk O, Nash D, Deschamps M, Safford MM, Pape JW, Rouzier V. Neighborhood cohesion and violence in Port-au-Prince, Haiti, and their relationship to stress, depression, and hypertension: Findings from the Haiti cardiovascular disease cohort study. PLOS Glob Public Health. 2022;2(7):e0000503. doi: 10.1371/journal.pgph.0000503. Epub 2022 Jul 27.

    PubMed 36819610
  • Yan LD, Sufra R, St Sauveur R, Jean-Pierre MC, Apollon A, Malebranche R, Theard M, Pierre G, Devieux J, Lau J, Mourra N, Roberts NLS, Rasul R, Nash D, Pirmohamed AM, Devereux RB, Lee MH, Kwan GF, Safford MM, Adrien L, Alfred JP, Deschamps M, Severe P, Fitzgerald DW, Pape JW, Rouzier V, McNairy ML; Haiti Cardiovascular Disease Cohort study team. Spectrum of prevalent cardiovascular diseases in urban Port-au-Prince, Haiti: a population-based cross-sectional study. Lancet Reg Health Am. 2024 Apr 4;33:100729. doi: 10.1016/j.lana.2024.100729. eCollection 2024 May.

    PubMed 38590326
  • Roberts NLS, Pierre JL, Rouzier V, Sufra R, St-Preux S, Yan LD, Metz M, Clermont A, Apollon A, Sabwa S, Deschamps MM, Kingery JR, Peck R, Fitzgerald D, Pape JW, Tummalapalli SL, McNairy ML. Prevalence and Severity of Chronic Kidney Disease in Haiti. Clin J Am Soc Nephrol. 2023 Jun 1;18(6):739-747. doi: 10.2215/CJN.0000000000000175. Epub 2023 Apr 18.

    PubMed 37081617

Questions about this trial

What is this clinical trial studying?

An observational study of Hypertension and Diabetes, run by Weill Medical College of Cornell University at 1 site in Haiti.

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 4 inclusion and 2 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: under way, not looking for participants, as of the sponsor's last update on 12 Feb 2026. 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 Haiti. 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?

This study is still under way. Results are not available in the source record yet.

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?

Prevalence of CVD risk factors and diseases and their association with social and environmental determinants in an established longitudinal cohort of ~3,000 Haitian adults (time frame: Baseline). 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 NCT03892265, which also lists 20 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 12 Feb 2026; AzTrials last refreshed its copy on 6 Nov 2026.

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