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Treatment Adherence Among Patients With Inflammatory Bowel Disease Receiving Anti-TNF Therapy

2026年6月16日 更新者：Nur Basak、Izmir Katip Celebi University

Effect of Health Belief Model-Based Nurse-Led Patient Education on Treatment Adherence Among Patients With Inflammatory Bowel Disease Receiving Anti-Tumor Necrosis Factor Therapy

Inflammatory bowel disease (IBD) is a chronic condition characterized by periods of remission and relapse, requiring long-term treatment adherence to maintain disease control and prevent complications. Anti-tumor necrosis factor (anti-TNF) agents are widely used in the management of moderate to severe IBD; however, suboptimal adherence remains a significant clinical problem due to concerns related to adverse effects, treatment burden, and insufficient patient knowledge.

This randomized controlled trial evaluated the effectiveness of a nurse-led, Health Belief Model (HBM)-based structured patient education program on treatment adherence among patients with inflammatory bowel disease (IBD) receiving anti-TNF-α therapy. The study was conducted as a two-center trial between February and July 2024 in the gastroenterology inpatient units and outpatient clinics in Izmir, Turkey.

A total of 408 patients were screened, and 140 eligible patients were enrolled and allocated 1:1 to intervention (n=70) and control (n=70) groups.

Participants were randomized using stratified randomization to balance potential confounders, with strata defined by sex, age group (18-35, 36-54, ≥55), IBD type (ulcerative colitis/Crohn's disease), IBD diagnosis duration (<12, 13-24, 25-36 months), and anti-TNF treatment duration (<6, 6-12, 13-36 months). Assignments were generated via SPSS with a fixed block size within strata.

Eligible participants were adults (≥18 years), Turkish-literate, diagnosed with IBD for ≥6 months, using anti-TNF-α therapy for ≥3 months, able to communicate and cognitively competent, and willing to participate. Key exclusions included cognitive disorders (e.g., dementia/Alzheimer's), malignant/pre-malignant disease history, and use of more than four medications.

The intervention group received the HBM-based structured education, while the control group received standard education. Outcomes were assessed using a pre-test/post-test design to determine the program's impact on adherence-related measures.

研究概览

地位

完全的

条件

干预/治疗

详细说明

This study was designed as a randomized controlled trial to evaluate the effect of a nurse-led, structured patient education program based on the Health Belief Model on treatment adherence among patients receiving anti-TNF therapy. The study was conducted in two tertiary care hospitals in Türkiye between February and July 2024.

Eligible participants were allocated in a 1:1 ratio to either an intervention group or a control group using stratified randomization. Stratification variables included demographic and disease-related characteristics to ensure balance between study arms. Randomization sequences were generated using a computer-based randomization procedure.

Participants in the intervention group received a structured patient education program delivered by trained nurses and grounded in the constructs of the Health Belief Model, focusing on adherence-related beliefs, perceived benefits and barriers, and self-management of anti-TNF therapy. Participants in the control group received standard education routinely provided in outpatient clinical practice.

The study followed a pre-test/post-test design with follow-up assessment to evaluate changes over time. Outcome assessments were conducted at baseline, immediately after the intervention, and at follow-up. The effectiveness of the intervention was evaluated by comparing adherence-related outcomes between the intervention and control groups over time.

This trial aimed to contribute evidence on the role of theory-based, nurse-led patient education in supporting treatment adherence among patients receiving biologic therapies.

研究类型

介入性

注册 (实际的)

140

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习地点

  • 土耳其（türkiye）
      • Izmir、土耳其（türkiye）
        • Izmir Ekonomi University Medical Point Hospital
      • Izmir、土耳其（türkiye）
        • Izmir Ataturk Training and Research Hospital

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

  • 成人
  • 年长者

接受健康志愿者

不

描述

Inclusion Criteria:

  • Aged 18 years or older
  • Diagnosed with inflammatory bowel disease (Crohn's disease or ulcerative colitis)
  • Diagnosed with inflammatory bowel disease for at least 6 months
  • Receiving anti-TNF-α therapy for at least 3 months
  • Able to read and write in Turkish
  • Able to communicate effectively
  • Cognitively competent
  • Provided written informed consent and agreed to participate in the study

Exclusion Criteria:

  • Presence of cognitive disorders that may impair understanding or decision-making (e.g., dementia, Alzheimer's disease)
  • History of malignant or premalignant disease
  • Use of more than four concurrent medications (e.g., medications for hypertension, diabetes, cancer, or hematologic diseases)

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

  • 主要用途：支持治疗
  • 分配：随机化
  • 介入模型：并行分配
  • 屏蔽：无（打开标签）

武器和干预

参与者组/臂
干预/治疗
实验性的：Health Belief Model-Based Structured Patient Education
Participants received a nurse-led, structured patient education program grounded in the Health Belief Model to support adherence to anti-TNF therapy and treatment self-management in inflammatory bowel disease.
行为的：Health Belief Model-Based Structured Patient Education
A nurse-led structured patient education program based on the Health Belief Model, targeting adherence-related beliefs and behaviors for anti-TNF therapy, including education on medication use and addressing concerns and barriers to adherence.
有源比较器：Standard Education
Participants received standard outpatient clinic education routinely provided as part of usual care for patients receiving anti-TNF therapy.
行为的：Standard Patient Education
Standard patient education routinely provided in outpatient clinical practice for patients receiving anti-TNF therapy, without a structured theoretical framework.

研究衡量的是什么？

主要结果指标

结果测量
措施说明
大体时间
Anti-TNF Alpha Treatment Adherence Scale
大体时间：Baseline (pre-intervention), immediately post-intervention, and 1-month follow-up
Treatment adherence was measured using the Anti-TNF Alpha Treatment Adherence Scale, a validated self-report instrument assessing patients' adherence behaviors related to anti-TNF therapy. The scale evaluates multiple domains including medication-taking behavior, concerns about treatment, perceived barriers, and factors influencing continuation or discontinuation of therapy. Higher scores indicate better adherence to anti-TNF treatment.
Baseline (pre-intervention), immediately post-intervention, and 1-month follow-up

次要结果测量

结果测量
措施说明
大体时间
Partners in Healthcare Scale
大体时间：Baseline (pre-intervention), immediately post-intervention, and 1-month follow-up
Nurse-patient collaboration was assessed using the Partners in Healthcare Scale-Turkish (PIH-TR), which measures the degree of cooperation, shared decision-making, and partnership between patients and healthcare professionals in disease management. Higher scores reflect stronger collaboration.
Baseline (pre-intervention), immediately post-intervention, and 1-month follow-up
Patient Satisfaction With Education
大体时间：Immediately post-intervention
Patient satisfaction with the education received was measured using the The Psychometric Assessment on Patient Educationn Scale, a validated instrument evaluating patients' perceptions of the clarity, usefulness, and adequacy of the educational intervention provided during the study.
Immediately post-intervention

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

Izmir Katip Celebi University

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2024年2月1日

初级完成 (实际的)

2024年8月12日

研究完成 (实际的)

2025年1月4日

研究注册日期

首次提交

2026年2月14日

首先提交符合 QC 标准的

2026年6月16日

首次发布 (实际的)

2026年6月17日

研究记录更新

最后更新发布 (实际的)

2026年6月17日

上次提交的符合 QC 标准的更新

2026年6月16日

最后验证

2026年6月1日

更多信息

与本研究相关的术语

关键字

其他相关的 MeSH 术语

其他研究编号

  • 0588

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)？

不

IPD 计划说明

Individual participant data (IPD) will not be shared because the data include sensitive health information collected from a relatively small patient population. Although all analyses were conducted using anonymized datasets, sharing IPD could pose a risk of indirect participant identification. Additionally, the informed consent obtained from participants did not include permission for public data sharing beyond aggregated and de-identified results.

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

在美国制造并从美国出口的产品

不

此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.

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