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Assessing the Feasibility of Multimedia Interventions to Reduce Blood Pressure in Marginalized Hypertensive Communities of Karachi, Pakistan

Assessing the Feasibility of Multimedia Interventions to Reduce Blood Pressure in Marginalized Hypertensive Communities of Karachi, Pakistan

Status
Not yet recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07131176
Enrollment
150
Registered
2025-08-20
Start date
2025-12-15
Completion date
2026-12-30
Last updated
2025-08-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cardio Vascular Disease, Educational Intervention, Hypertension, Self Care, Video Streaming

Keywords

high blood pressure, self-care, hypertension, I-changed model, marginalized population, educational intervention

Brief summary

This study utilizes the I-Change Model to empower individuals in literacy-limited settings, where the majority of the population is illiterate. By leveraging multimedia tools-such as an educational video and a pictorial infographic-we aim to promote self-care practices among individuals suffering from hypertension. Through these tailored interventions, we seek to enhance awareness, improve hypertension management, and encourage behavioral change, even in low-literacy communities

Detailed description

This study is grounded in the I-Change Model, a behavioral change framework that emphasizes awareness, motivation, and ability as key drivers for adopting healthier lifestyles. Recognizing the barriers posed by low literacy in many underserved communities, particularly in urban slums, we aim to implement context-sensitive interventions that empower individuals with hypertension to take charge of their health. In these settings, traditional written health education materials often fail to reach or resonate with the population due to widespread illiteracy and limited health literacy. To address this gap, our study introduces two key multimedia tools: an educational video, designed with simple language and culturally relevant visuals to demonstrate self-care techniques; and a pictorial infographic that visually conveys essential information about hypertension management, medication adherence, dietary habits, and physical activity. By combining these tools with physician consultations, we hope to strengthen patient understanding, increase engagement with self-care practices, and ultimately improve blood pressure control. This multimedia-based, patient-centered approach offers a scalable and cost-effective strategy for promoting behavioral change in marginalized, low-literacy populations.

Interventions

OTHERBehavior Change through Education intervention

The I-Change Model We used behavior alteration theory to identify areas of thinking or conduct that might potentially lead to issues in the process of collecting or consuming medicine. Subsequently, we proceeded to create and improve the substance of the message, and we aligned the messages with a standardized classification of evidence-based strategies for modifying behavior. Unclear or confusing information in infographics and television videos was revised, while information that was deemed unhelpful or insignificant by both patients and clinicians was eliminated. Patients' feedback was used to create fresh material for television videos and infographics. 1. Encourage patients about routine clinic appointments 2. Provide relevant health-related information. 3. Help participants plan and organize various treatment adherence behaviors including medication collection and taking, diet, and exercise 4. Support positive adherence-related behaviors

Sponsors

Aga Khan University
CollaboratorOTHER
SINA Health Education and Welfare Trust
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
DOUBLE (Caregiver, Outcomes Assessor)

Masking description

In the proposed intervention, masking and blinding are essential components to minimize bias and ensure the integrity of the study results. The biostatistician involved in data analysis will be blinded to group assignments, meaning they will not have knowledge of which participants received the video messaging and visual infographics intervention versus those in the control group. This approach prevents any unconscious influence on the statistical analysis, maintaining objectivity in interpreting the outcomes. Additionally, the outcome assessors, who will measure the participants' blood pressure and other health indicators, will also be masked to the group allocations. They will conduct assessments without knowledge of whether the participant is in the intervention or control group, further reducing the risk of bias in the measurement process.

Eligibility

Sex/Gender
ALL
Age
21 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Participants will be hypertension patients with an active primary healthcare clinic registration from eight chosen clinics situated in Karachi, Pakistan's slums. * Anyone between the ages of 21 and 70 who has been diagnosed with hypertension at one of SINA's participating clinics in the last 30 days is eligible to participate. * Participants will be required to take medicine to control their blood pressure, * sign an informed consent form, * attend primary healthcare clinic on a regular basis, and * have proficiency in five local languages: Urdu, Sindhi, Balochi, Pashto, or Punjabi.

Exclusion criteria

* a patient's pregnancy or lactation status, a history of cancer that may necessitate medication changes, * a blood pressure reading greater than 220/120 mmHg, * a disability that prevents the patient from reading, writing, communicating, or watching television, and participation in any other study.

Design outcomes

Primary

MeasureTime frameDescription
Change in Systolic and/or Diastolic Blood Pressure3, 6, 9 months post interventionChange in Systolic and/or Diastolic Blood Pressure from baseline to follow-up

Secondary

MeasureTime frameDescription
Adherence to antihypertensive medicationat 3, 6, 9 months post interventionThe Hill bone-scale, comprising 14 items, assesses medication self-efficacy in managing Hypertension (chronic diseases) and appears suitable for individuals with limited literacy skills
Dietary modifications (e.g., reduced salt intake)at 3, 6, 9 months post interventionDietary modifications (e.g., reduced salt intake)
Number of clinic visits or follow-up consultations3, 6, 9 months post interventionNumber of clinic visits or follow-up consultations
Change in hypertension knowledge scoreat 3, 6, 9 months post interventionFrom baseline to post intervention, knowledge about self-care among interventional arms
Smoking control (number of cigarettes per day)3, 6, 9 months post interventionSmoking control starting from reduction in number of cigarettes per day to complete cessation
Physical activity3, 6, 9 months interventiontime in minutes which shows physically active in a day (in term of walking, yoga, exercise)
BMI management in Kg/m23,6,9 months post interventionweight control according to height in kg/m2

Contacts

Primary ContactHina Sharif, PharmD,MSPH
hina.shf19@gmail.com03373305666
Backup ContactSana S Sheikh, MSc. MPH
sanshf4@gmail.com

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026