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

1 juin 2026 mis à jour par: 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.

Aperçu de l'étude

Type d'étude

Interventionnel

Inscription (Estimé)

828

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

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

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

  • Adulte
  • Adulte plus âgé

Accepte les volontaires sains

Non

La description

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 d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation croisée
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Comparateur actif: 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.
Expérimental: 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.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Length of hospital stay (days)
Délai: 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)

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Correct pneumothorax subtype classification
Délai: 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
Délai: 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
Délai: 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)
Délai: 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)
Délai: 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
Délai: 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
Délai: Periprocedural
Chest tube size (French gauge, Fr) used for pleural effusion drainage
Periprocedural
Definitive cause for pleural effusion
Délai: 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
Délai: 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
Délai: 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.
Délai: 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.
Délai: 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
Délai: 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.

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Les enquêteurs

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

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

1 avril 2026

Achèvement primaire (Estimé)

15 octobre 2026

Achèvement de l'étude (Estimé)

15 octobre 2026

Dates d'inscription aux études

Première soumission

20 mars 2026

Première soumission répondant aux critères de contrôle qualité

1 juin 2026

Première publication (Réel)

4 juin 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

4 juin 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

1 juin 2026

Dernière vérification

1 mai 2026

Plus d'information

Termes liés à cette étude

Autres numéros d'identification d'étude

  • p-2024-17577

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

NON

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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