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Evaluating the Use of an App in Pleural Disease: Algorithm-supported Clinical Decision Making Versus Usual Care (APPLAUS)

1 de junio de 2026 actualizado por: Uffe Bodtger, Zealand University Hospital

Evaluating the Use of an App in Pleural Disease: Algorithm-supported Clinical Decision Making Versus Usual Care: a Multicentre, Stepped-wedge Cluster-randomised Controlled Trial to Reduce Number of Days in Hospital.

Pleural disease is a group of conditions that affect the membrane around the lungs. These conditions-fluid around the lungs, infections, cancer, and collapsed lung-are common and can cause serious illness. They often lead to long hospital stays, emergency admissions, and reduced quality of life. In Denmark and worldwide, the number of patients with pleural disease is rising, and the treatment is costly for the healthcare system.

How long patients stay in the hospital depends on the type of pleural disease. Some stay less than a week, while others remain for several weeks, especially if complications occur. Research shows that early diagnosis and treatment based on clinical guidelines can shorten hospital stays and improve outcomes.

In the UK, many hospitals have created dedicated pleural clinics run by specialists. These clinics help ensure that patients receive fast, consistent, and evidence based care, and they have reduced the number of days patients spend in hospital. In Denmark, however, such clinics are rare. A recent national survey showed that many Danish hospitals do not follow current pleural disease guidelines, and many lack clear pathways for diagnosing and treating these patients. As a result, patients may receive suboptimal care.

This project aims to close that gap. The goal is to develop an easy to use, guideline based decision tool that supports doctors in emergency, medical, and surgical departments. The tool will guide clinicians from the moment a patient arrives until discharge, helping them choose the right tests and treatments at the right time. By making expert knowledge accessible to non specialists, the project hopes to improve patient care, reduce complications, and shorten hospital stays.

Ultimately, the project seeks to ensure that all patients with pleural disease in Denmark receive fast, safe, and evidence based treatment-no matter where they are admitted.

Descripción general del estudio

Tipo de estudio

Intervencionista

Inscripción (Estimado)

828

Fase

  • No aplica

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Ubicaciones de estudio

      • Aalborg, Dinamarca, 9000
        • Aalborg University Hospital
      • Aarhus, Dinamarca, 8200
        • Aarhus University Hospital
      • Amager, Dinamarca, 2300
        • Amager Hospital
      • Esbjerg, Dinamarca, 6700
        • Esbjerg Hospital
      • Hillerød, Dinamarca, 3400
        • North Zealand Hospital, Hillerød
      • Hvidovre, Dinamarca, 2650
        • Hvidovre Hospital
      • Kolding, Dinamarca, 6000
        • Kolding Hospital
      • Køge, Dinamarca, 4600
        • Zealand University Hospital, Køge
      • Odense, Dinamarca, 5000
        • Odense University Hospital
      • Slagelse, Dinamarca, 4200
        • Slagelse Hospital

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

  • Adulto
  • Adulto Mayor

Acepta Voluntarios Saludables

No

Descripción

Inclusion Criteria:

One or more of the following, relevante ICD-10 codes for either spontaneous pneumothorax, pleural effusion or pleural infection.

Spontaneous pneumothorax:

  • DJ93
  • DJ930
  • DJ931
  • DJ938
  • DJ939

Pleural effusion:

  • DJ90
  • DJ909
  • DJ919
  • DJ91
  • DJ940
  • DJ948
  • DJ948A
  • DJ949
  • DC782

Pleural infection:

  • DJ86
  • DJ860
  • DJ860

Exclusion Criteria:

  • Traumatic pneumothorax (including iatrogenic pneumothorax)
  • Hemothorax

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación cruzada
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Comparador activo: Usual care

Usual provided care for patients with spontaneous pneumothorax, pleural effusion or pleural infection.

All clusters begin in this condition before transitioning to the intervention as part of the stepped-wedge schedule.

Care supported by a clinical decision-support tool delivered via a smartphone app.
Experimental: Clinical decision-making support tool
Care supported by the clinical decision-making app. Clusters transition to this condition at predefined time points according to the stepped-wedge design.
Care for patients with spontaneous pneumothorax, pleural effusion or pleural infection when supported by a clinical decision-support tool, in the form of a smartphone app.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Length of hospital stay (days)
Periodo de tiempo: From hospital admission through hospital discharge (up to 90 days)
Number of days from hospital admission to hospital discharge.
From hospital admission through hospital discharge (up to 90 days)

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Correct pneumothorax subtype classification
Periodo de tiempo: During index hospital admission (up to 90 days after admission)
Whether the pneumothorax subtype was correctly classified during the index hospital admission according to predefined diagnostic criteria (yes/no).
During index hospital admission (up to 90 days after admission)
Number of participants receiving each initial pneumothorax management strategy
Periodo de tiempo: Within 24 hours from hospital admission
Number of participants managed with either conservative care, needle aspiration, chest tube insertion, or ambulatory device insertion
Within 24 hours from hospital admission
Chest tube size
Periodo de tiempo: Periprocedural.
Diameter of chest tube used for treatment of spontaneous pneumothorax, reported in French units (Fr).
Periprocedural.
Number of participants with persistent air leak (>7 days)
Periodo de tiempo: From chest tube insertion until resolution of air leak or up to 90 days
Number of participants with ongoing air leak through the chest drainage system for more than 7 days after chest tube insertion (yes/no)
From chest tube insertion until resolution of air leak or up to 90 days
Number of participants undergoing high-resolution computed tomography (HRCT)
Periodo de tiempo: During index hospital admission
Number of participants who underwent high-resolution computed tomography (HRCT) during hospital admission or within 90 days after discharge, recorded as yes/no
During index hospital admission
Number of participants receiving complete recommended diagnostic work-up for unilateral pleural effusion
Periodo de tiempo: At end of index hospital admission (up to 90 days).
Assessment of whether recommended blood tests (full blood count, C-reactive protein, renal function tests, liver function tests, and albumin) and pleural fluid analyses (pH or glucose, LDH, leukocyte differential count, microbiology culture and sensitivity analysis, and cytology) were performed in participants with unilateral pleural effusion.
At end of index hospital admission (up to 90 days).
Chest tube size
Periodo de tiempo: Periprocedural
Chest tube size (French gauge, Fr) used for pleural effusion drainage
Periprocedural
Definitive cause for pleural effusion
Periodo de tiempo: During hospital admission or within 90 days after discharge.
Was a definitive cause for the cause of pleural effusion established.
During hospital admission or within 90 days after discharge.
Definitive pleural procedure
Periodo de tiempo: During hospital admission or within 90 days after discharge.
Definitive pleural procedure within 90 days of admission due to pleural effusion.
During hospital admission or within 90 days after discharge.
Number of participants receiving complete recommended diagnostic work-up for suspected pleural infection
Periodo de tiempo: Up to 90 days
Assessment of whether recommended blood tests (full blood count, C-reactive protein, renal function tests, liver function tests, and albumin) and pleural fluid analyses (pH or glucose, LDH, leukocyte differential count, microbiology culture and sensitivity analysis, and cytology) were performed in participants with suspected pleural infection.
Up to 90 days
Chest tube diameter of chest tubes used for pleural infection.
Periodo de tiempo: Periprocedural.
Diameter of chest tube used for drainage of pleural infection, reported in French units (Fr).
Periprocedural.
Number of participants receiving intrapleural enzyme therapy (IET) for pleural infection.
Periodo de tiempo: Up to 90 days.
Assessment of whether intrapleural enzyme therapy (IET) was administered in participants with pleural infection despite chest tube drainage.
Up to 90 days.
Length of antibiotic treatment
Periodo de tiempo: During hospital admission or within 90 days after discharge.
Total length of antibiotic treatment (both intravenously and orally) for pleural infection.
During hospital admission or within 90 days after discharge.

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Investigadores

  • Investigador principal: Casper Jensen, MD, Lungemedicinsk Forskningsenhed (PLUZ), Institut for Regional Sundhedsforskning, Syddansk Universitet

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

1 de abril de 2026

Finalización primaria (Estimado)

15 de octubre de 2026

Finalización del estudio (Estimado)

15 de octubre de 2026

Fechas de registro del estudio

Enviado por primera vez

20 de marzo de 2026

Primero enviado que cumplió con los criterios de control de calidad

1 de junio de 2026

Publicado por primera vez (Actual)

4 de junio de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

4 de junio de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

1 de junio de 2026

Última verificación

1 de mayo de 2026

Más información

Términos relacionados con este estudio

Otros números de identificación del estudio

  • p-2024-17577

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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