An interventional study of Individual Motivational Interviewing and Family-Involved Motivational Interviewing in Hypertension, sponsored by Kutahya Health Sciences University. Recruiting at 1 site in Turkey (Türkiye). Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-08-12.
Sponsored by Kutahya Health Sciences University · Not applicable, Interventional, and Treatment
Hypertension is one of the most important risk factors for cardiovascular morbidity and mortality. Effective hypertension management requires medication adherence, lifestyle modification, regular blood pressure monitoring, and self-management behaviors. Motivational interviewing is a counseling approach that may support behavior change and improve hypertension management.
This study aims to evaluate the effects of nurse-led individual motivational interviewing and family-involved motivational interviewing on blood pressure control in patients with hypertension. The study will be conducted as a single-center, three-arm, parallel-group, randomized controlled trial. A total of 180 patients with hypertension will be randomly assigned to one of three groups: usual care, individual motivational interviewing, or family-involved motivational interviewing.
Participants in the intervention groups will receive a 6-week nurse-led motivational interviewing program. In the family-involved motivational interviewing group, a family member who supports hypertension management will also participate in the sessions. Data will be collected at baseline, 6 weeks, and 18 weeks. The primary outcome is systolic blood pressure. Secondary outcomes include diastolic blood pressure, hypertension knowledge level, treatment adherence, and hypertension self-efficacy.
The study intervention is a non-invasive, education- and counseling-based behavioral nursing intervention. Participants in the control group will continue to receive routine hypertension care and will be given a standard hypertension information brochure. Participants in the individual motivational interviewing group will receive nurse-led individual motivational interviewing sessions. Participants in the family-involved motivational interviewing group will receive the same intervention, with the participation of a family member who supports the patient's hypertension management.
The intervention content includes hypertension awareness, individual risk factors, readiness for change, hypertension knowledge, misconceptions and complications, medication adherence, treatment barriers, salt reduction, nutrition behaviors, home blood pressure monitoring, physical activity, weight control, stress management, self-efficacy, problem solving, motivation maintenance, and individualized goal evaluation. Intervention fidelity will be monitored using a session checklist.
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This study's planned enrollment of 180 is above the median of 90 across 4,994 interventional studies indexed under Hypertension.
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Exclusion Criteria:
Participants in this arm will continue to receive routine hypertension care. They will also receive a standard hypertension information brochure. No structured motivational interviewing intervention will be provided.
Behavioral: Usual Hypertension Care With Information Brochure
Participants in this arm will receive a 6-week nurse-led individual motivational interviewing program in addition to routine hypertension care. The intervention will focus on hypertension awareness, medication adherence, lifestyle modification, home blood pressure monitoring, physical activity, stress management, self-efficacy, problem solving, and maintenance of motivation.
Behavioral: Individual Motivational Interviewing
Participants in this arm will receive the same 6-week nurse-led motivational interviewing program in addition to routine hypertension care, with the participation of a family member who supports hypertension management. The family member may support medication adherence, salt reduction, nutrition behaviors, home blood pressure monitoring, and weekly goals.
Behavioral: Family-Involved Motivational Interviewing
The intervention is a structured 6-week nurse-led individual motivational interviewing program. Sessions will focus on hypertension awareness, individual risk factors, readiness for change, hypertension knowledge, misconceptions and complications, medication adherence, treatment barriers, salt reduction, nutrition behaviors, home blood pressure monitoring, physical activity, weight control, stress management, self-efficacy, problem solving, motivation maintenance, and individualized goal evaluation.
The intervention is a structured 6-week nurse-led motivational interviewing program delivered with the participation of a family member who supports the patient's hypertension management. The intervention content is the same as the individual motivational interviewing program. The family member will be included to support medication adherence, salt reduction, nutrition behaviors, home blood pressure monitoring, and achievement of weekly goals.
Participants will continue to receive routine hypertension care and will be given a standard hypertension information brochure. No structured motivational interviewing session will be provided.
Systolic Blood Pressure
Systolic blood pressure will be measured in mmHg using a standard blood pressure measurement procedure. Measurements will be taken after at least 5 minutes of rest using an appropriate cuff. At each assessment, at least two measurements will be taken from the same arm, and the average value will be used in the analysis. Lower systolic blood pressure values indicate better blood pressure control.
Time frame: Baseline, 6 weeks, and 18 weeks
Diastolic Blood Pressure
Diastolic blood pressure will be measured in mmHg using a standard blood pressure measurement procedure. Measurements will be taken after at least 5 minutes of rest using an appropriate cuff. At each assessment, at least two measurements will be taken from the same arm, and the average value will be used in the analysis. Lower diastolic blood pressure values indicate better blood pressure control.
Time frame: Baseline, 6 weeks, and 18 weeks
Hypertension Knowledge Level Assessed by the Hypertension Knowledge-Level Scale
Hypertension knowledge level will be assessed using the Hypertension Knowledge-Level Scale. The scale includes 22 items. Total scores range from 0 to 22. Higher scores indicate a higher level of hypertension-related knowledge.
Time frame: Baseline, 6 weeks, and 18 weeks
Treatment Adherence Assessed by the Hill-Bone Hypertension Treatment Adherence Scale
Treatment adherence will be assessed using the Hill-Bone Hypertension Treatment Adherence Scale. The scale includes 12 items. Total scores range from 12 to 48. Higher scores indicate poorer adherence to hypertension treatment, while lower scores indicate better treatment adherence.
Time frame: Baseline, 6 weeks, and 18 weeks
Hypertension Self-Efficacy Assessed by the Hypertension Self-Efficacy Scale
Hypertension self-efficacy will be assessed using the Hypertension Self-Efficacy Scale. The scale includes 20 items. Total scores range from 20 to 80. Higher scores indicate higher hypertension self-efficacy.
Time frame: Baseline, 6 weeks, and 18 weeks
Plan to share: No — Individual participant data will not be shared because the study includes health-related information from patients with hypertension. De-identified aggregate results may be reported in scientific publications.
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