Treatment Adherence Among Patients With Inflammatory Bowel Disease Receiving Anti-TNF Therapy
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.
Visão geral do estudo
Status
Condições
Descrição detalhada
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.
Tipo de estudo
Inscrição (Real)
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
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Izmir, Turquia (Türkiye)
- Izmir Ekonomi University Medical Point Hospital
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Izmir, Turquia (Türkiye)
- Izmir Ataturk Training and Research Hospital
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
- Adulto mais velho
Aceita Voluntários Saudáveis
Descrição
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)
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Cuidados de suporte
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Nenhum (rótulo aberto)
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
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Experimental: 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.
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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.
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Comparador Ativo: Standard Education
Participants received standard outpatient clinic education routinely provided as part of usual care for patients receiving anti-TNF therapy.
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Standard patient education routinely provided in outpatient clinical practice for patients receiving anti-TNF therapy, without a structured theoretical framework.
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Anti-TNF Alpha Treatment Adherence Scale
Prazo: Baseline (pre-intervention), immediately post-intervention, and 1-month follow-up
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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.
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Baseline (pre-intervention), immediately post-intervention, and 1-month follow-up
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Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Partners in Healthcare Scale
Prazo: Baseline (pre-intervention), immediately post-intervention, and 1-month follow-up
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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.
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Baseline (pre-intervention), immediately post-intervention, and 1-month follow-up
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Patient Satisfaction With Education
Prazo: Immediately post-intervention
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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.
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Immediately post-intervention
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Colaboradores e Investigadores
Patrocinador
Publicações e links úteis
Publicações Gerais
- Sullivan GM, Feinn R. Using Effect Size-or Why the P Value Is Not Enough. J Grad Med Educ. 2012 Sep;4(3):279-82. doi: 10.4300/JGME-D-12-00156.1. No abstract available.
- Cummings KM, Jette AM, Rosenstock IM. Construct validation of the health belief model. Health Educ Monogr. 1978 Winter;6(4):394-405. doi: 10.1177/109019817800600406.
- Ciftci B, Avsar G, Sarialioglu A. A psychometric assessment on patient education: Developing a satisfaction scale. Perspect Psychiatr Care. 2022 Oct;58(4):2237-2245. doi: 10.1111/ppc.13052. Epub 2022 Feb 16.
- Basak N, Ozgursoy Uran BN, Saritas Yuksel E. Treatment Adherence of Anti-TNF Drugs in the Patients with Inflammatory Bowel Disease: A Scale Development Study. Turk J Gastroenterol. 2022 Apr;33(4):336-345. doi: 10.5152/tjg.2022.211170.
- King K, Czuber-Dochan W, Chalder T, Norton C. Medication Non-Adherence in Inflammatory Bowel Disease: A Systematic Review Identifying Risk Factors and Opportunities for Intervention. Pharmacy (Basel). 2025 Feb 7;13(1):21. doi: 10.3390/pharmacy13010021.
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
- Teste controlado e aleatório
- Adesão à medicação
- Educação paciente
- Colite ulcerativa
- Doença inflamatória intestinal
- Doença de crohn
- Modelo de Crenças em Saúde
- Adesão ao tratamento
- Comportamento de saúde
- Engajamento do paciente
- Gerenciamento de doenças crônicas
- Auto Gerenciamento
- Terapia biológica
- Anti tumor necrosis factor therapy
- Nurse led patient education
Termos MeSH relevantes adicionais
- Doenças Intestinais
- Doenças do aparelho digestivo
- Doenças Gastrointestinais
- Doenças do cólon
- Gastroenterite
- Colite
- Comportamento
- Aceitação dos Cuidados de Saúde pelo Paciente
- Colite ulcerativa
- Doença de Crohn
- Doenças Inflamatórias Intestinais
- Comportamento de saúde
- Adesão à Medicação
- Participação do paciente
- Adesão e Cumprimento do Tratamento
- Conformidade do paciente
Outros números de identificação do estudo
- 0588
Plano para dados de participantes individuais (IPD)
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Descrição do plano IPD
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