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NCT07374172Active, not recruiting

SADT in COPD and Oscillometry in Obstructive Airway Disease in Primary Care. The SCOOP-study

Source: ClinicalTrials.gov · Last updated 28 Jan 2026

Brief summary (registry, in English)

Rationale: The Small Airways are a major site of obstruction in many respiratory diseases, including COPD. More insight into a diagnosis of Small Airways Dysfunction (SAD) in patients with COPD is clinically valuable as it might enable tailored pharmacotherapy. Currently, methods to diagnose SAD in COPD are not standardized and are not available in routine clinical practice. The Small Airways Dysfunction Tool (SADT) was developed to identify patients with asthma and SAD. Initially, the SADT included a comprehensive 63-item questionnaire. The number of items has been reduced to a SADT-asthma (SADT a) questionnaire and key patient and disease characteristics for it to be feasible and implementable in clinical practice. Although there are many similarities between asthma and COPD, there might be differences in clinical characteristics and responses to small airways dysfunction between the two diseases. The current study aims to adapt the original 63-item SADT questionnaire for dedicated use in COPD by reducing the number of items, and identifying COPD-SAD-specific items, to enhance its efficiency in identifying SAD when combined with key patient and disease characteristics in individuals with COPD (SADT-c). In addition, a comparison of diagnostic accuracy of spirometry and oscillometry will be made by interpretations by a panel of experts to provide a triage diagnosis. The previously developed machine learning AC/DC tool will be used to explore its diagnostic accuracy using oscillometry and spirometry results. This can contribute to standardizing oscillometry in clinical practice.

Status (registry)
Active, not recruiting
Study type
Observational
Enrollment
108 (actual)
First submitted
15 Jan 2026
Start date
1 May 2024
Primary completion date
1 Aug 2025
Lead sponsor
General Practitioners Research Institute
Diseases
Asthma, COPD
NCT number
NCT07374172

What you commit to

  • Study type: Observational
  • Participants enrolled: 108
  • From 1 May 2024 to the primary completion date, 1 Aug 2025
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Other

  • Inability to understand and sign the written informed consent form.

Who the study is looking for

  • Suspected of having COPD, asthma or ACO as indicated by the referring GP OR a previous diagnosis of COPD

Age in the registry: 35 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Primary care sites across the Netherlands
Coordinator of this site? Confirm its status
GroningenNetherlandsUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.