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NCT Number: NCT06859359

Improving Maternal Cardiovascular Outcomes Through the Implementation of a Hypertensive Disorders of Pregnancy Bundle in Nigeria

The goal of this interventional study is to learn from patients and healthcare providers at 4 health institutions (study sites) in Abuja and Kano in Nigeria what ways to best develop the content of a Hypertensive Disorders of Pregnancy ( HDP) Management package for pregnant women, and evaluate the effectiveness of implementing this package in improving cardiovascular health of pregnant women. The main question it aims to answer is:

Will a contextualized home BP monitoring program lead to better BP control among patients with HDP in Nigeria?

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Key information

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

National Hospital, Abuja, Abuja, Nigeria

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About this study

This study aims to contextualize, implement, and evaluate the feasibility, fidelity, and acceptability and effectiveness of: 1) postpartum remote blood pressure monitoring, 2) patient education, 3) development of a standardized postpartum follow-up protocol, and 4) provision of free and/or subsidized antihypertensive medications for patients with HDP in University of Abuja, Murtala Muhammad Specialist Hospital, National Hospital, Abuja and Aminu Kano Teaching Hospital all in Nigeria. These components collectively make up a contextualized postpartum BP monitoring program called the HDP Implementation Bundle. The long-term objective is to implement a contextualized and acceptable evidence-based postpartum home BP monitoring program with supporting services and components, at 4 tertiary care institutions in Nigeria, to improve postpartum BP control in patients with HDP using a multilevel approach.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Postpartum adults (>18 years)
  • postpartum emancipated minors (in accordance with the Nigerian guidelines for young persons' participation in research and reproductive health services)
  • with diagnosis of HDP prior to delivery delivered at one of the participating sites able to provide informed consent.

Exclusion criteria

  • unable to provide consent.

Treatment and study plan

Hypertension Disorders of Pregnancy (HDP) Implementation Bundle

Other

The HDP Implementation Bundle will consist of 4 main blocks namely; patient education, home BP monitoring, a contextualized follow-up protocol and provision of free anti-hypertensives if need. Collectively, these will lead to design and development of a contextualized home BP monitoring program.

Primary outcomes

  1. Between group difference in change in systolic BP from baseline to 6-week follow-up

    Time frame: Baseline to 6 weeks

    The change in systolic BP from baseline to 6-week follow-up between the intervention and control group

Secondary outcomes

  1. Between group differences in change in diastolic BP at 6 weeks follow-up and change in both systolic an diastolic BP at 12 weeks

    Time frame: Baseline to 6(and 12) weeks

    The change in diastolic BP from baseline to 6-week follow-up between the intervention and control groups.

  2. Between group differences in systolic and diastolic BP at 12 weeks follow-up

    Time frame: Baseline to 12 weeks

    The change mean systolic and diastolic BPs 12 weeks follow-up between the intervention and control group

Other outcomes

  1. Incidence of serious adverse events (eg dizziness) [Safety Outcomes]

    Time frame: Baseline to 6 months

    Safety outcomes include incidence of serious adverse events (eg dizziness) collected via surveys and patient charts at 6- weeks,12-weeks and 6-months postpartum

  2. Number of eligible patient participants who utilized the HDP Implementation Bundle (Reach)

    Time frame: Baseline up to 57 months

    Number, age, socio-demographics of patients who were enrolled in the HDP Implementation Bundle.

  3. Between-group difference in change in systolic BP from baseline to 6-week follow-up (Effectiveness)

    Time frame: Baseline up to 6 weeks

    Did the HDP Implementation Bundle impact effectiveness outcomes?

  4. Number of clinical sites where the HDP Implementation Bundle was widely utilized (Adoption)

    Time frame: Baseline up to 57 months

    Records and surveys assessed to establish whether the HDP Implementation Bundle was widely utilized at clinical sites. Patient enrolment in HDP Bundle, where at least 1 home BP measurement is reported among total participants.

  5. Number of clinical sites where the HDP Implementation Bundle was implemented as intended (Implementation)

    Time frame: Baseline up to 57 months

    Clinical site records and surveys assessed to evaluate whether the HDP Implementation Bundle was implemented as intended per the study protocol.

  6. Number of clinical sites and patients that continue use of the HDP Implementation Bundle post completion. (Maintenance)

    Time frame: End of study at month 57 to 1 year post-completion

    Can the HDP Implementation Bundle be sustained? Continued use of the HDP Implementation Bundle or its components post-implementation.

  7. Incidence of adverse events of special interest [Safety & Exploratory Outcomes]

    Time frame: Baseline to 6 months

    Exploratory outcomes include incidence of adverse events of special interest (e.g., dizziness, syncope, acute kidney injury) that will be collected via surveys and patient charts at 6- weeks,12-weeks and 6-months postpartum that could form the basis of new research questions or useful in developing hypotheses for exploring new research foci.

  8. Between-group differences in change in diastolic BP at 6 weeks. (Effectiveness)

    Time frame: Baseline up to 6 weeks

    Did the HDP Implementation Bundle impact effectiveness outcomes

  9. Between-group differences in change in systolic BP at 12 weeks. (Effectiveness)

    Time frame: Baseline to 12 weeks

    Did the HDP Bundle impact effectiveness outcomes?

  10. Between-group differences in change in diastolic BP at 12 weeks. (Effectiveness)

    Time frame: Baseline to 12 weeks

    Did the HDP Implementation Bundle impact effectiveness outcomes?

  11. Between-group differences in change in proportion of BP control at 6 weeks. (Effectiveness)

    Time frame: Baseline up to 6 weeks

    Did the HDP Implementation Bundle impact effectiveness outcomes

  12. Between-group differences in change in proportion of BP control at 12 weeks. (Effectiveness)

    Time frame: Baseline to 12 weeks

    Did the HDP Implementation Bundle impact effectiveness outcomes?

  13. Composite rate of fatal and nonfatal cardiovascular disease events. [Safety and Exploratory Outcomes]

    Time frame: Baseline up to 6 months

    The composite rate of fatal and nonfatal cardiovascular disease events will be calculated as the total sum of both fatal and nonfatal events out of the total study population times a hundred at 6 weeks, 12 weeks and 6 months as follows:

    Composite CVD Event Rate= (Total Study Population/Total Fatal + Nonfatal Events) ×100

Study contacts

Contact information is provided by the study sponsor or research team.

Dike Ojji, MBBS, PhD

CONTACT

[email protected]

+234-806-009-4456

Kamilu Karaye, MBBS, PhD

CONTACT

[email protected]

+2348037042171

Sponsors and collaborators

Lead sponsor

Washington University School of Medicine

Other

Collaborators

  • National Heart, Lung, and Blood Institute (NHLBI)

Registry information

Acronym: IMPACT-HDP

Important dates

Study start
2024
Primary completion
2028
Study completion
2029
First posted
Mar 5, 2025
Registry last updated
Mar 30, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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