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NCT Number: NCT07535671

The Effect of a Patient Education Program on Vitamin D Levels and Health Beliefs Regarding Vitamin D Use

Background and Rationale:

Vitamin D deficiency is a major public health concern. While clinical guidelines provide treatment protocols, medication adherence remains a significant barrier to achieving target serum levels. This study aims to evaluate whether a structured patient education program can improve health beliefs and adherence, ultimately leading to better clinical outcomes.

Study Procedures:

Participants identified with Vitamin D levels <30 ng/mL will be randomized into two groups.

Intervention Group:

Patients will receive a face-to-face education session covering the importance of Vitamin D, correct usage, and potential side effects. They will also receive informative brochures and monthly follow-up phone calls to support adherence.

Control Group:

Patients will receive standard clinical care without additional structured education.Evaluation:Adherence will be monitored using the Medication Possession Ratio (MPR). Serum 25(OH)D levels and Vitamin D Health Belief Scale scores will be reassessed at the 6-month mark to compare the effectiveness of the intervention against the control group.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

KTU Faculty of Medicine

Trabzon, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Female,
  • Aged 18 years and older,
  • Hypothyroid disease,
  • Serum vitamin D level < 30 ng/mL,
  • Providing written informed consent to participate in the study.

Exclusion criteria

  • Male ,
  • Under the age of 18,
  • Patients who do not provide written informed consent,
  • Serum vitamin D levels > 30 ng/mL

Treatment and study plan

Educational with vitamin D

Behavioral

This study implements a pharmacist-led patient education program designed to improve treatment adherence and health beliefs in individuals with vitamin D deficiency (25(OH)D < 30 ng/mL). The intervention begins with the collection of sociodemographic data and the administration of the Vitamin D Health Belief Scale to establish a baseline.

The core intervention involves providing the intervention group (n=30) with structured oral counseling and written educational materials (patient brochures) regarding the clinical importance and proper usage of vitamin D. In contrast, the control group receives standard care.

Three months post-intervention, follow-up assessments are conducted via telephone to re-evaluate health beliefs and measure treatment adherence using the Medication Possession Ratio (MPR). The primary success criteria are achieving an MPR ≥ 8

Primary outcomes

  1. Change in Serum 25(OH)D Levels

    Time frame: Baseline and 3 months

    Assessment of Vitamin D status through serum laboratory analysis

  2. Change in Medication Possession Ratio (MPR)

    Time frame: Baseline and 3 months

    Adherence measured by MPR. Target is defined as >% 80

Sponsors and collaborators

Lead sponsor

Karadeniz Technical University

Other

Registry information

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Apr 17, 2026
Registry last updated
Apr 17, 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.