Skip to content

Rheumatoid interstitial lung disease in Canterbury New Zealand

Rheumatoid interstitial lung disease in Canterbury New Zealand

Status
Completed
Phases
Unknown
Study type
Observational
Source
ANZCTR
Registry ID
ACTRN12619001310156
Enrollment
1930
Registered
2019-09-25
Start date
2019-10-01
Completion date
2023-01-30
Last updated
2025-09-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Rheumatoid interstitial lung disease is a serious extra-articular manifestation of rheumatoid arthritis. To date there is little known about rheumatoid interstitial lung disease in New Zealand. The number of persons with rheumatoid arthritis in Canterbury is also unknown. The overarching aim of this project is to investigate the frequency of rheumatoid interstitial lung disease in Canterbury, and to determine risk factors and outcomes related to this disease and to compare them to international cohorts.

Interventions

Retrospective audit of medical records of persons aged 18 years of age and older in the region of the Canterbury District Health Board (CDHB), held at Canterbury District Health Board as well as private rheumatology providers in Canterbury, between 1/1/2006-31/12/2008 and between 1/1/2011–31/12/2013.

Sponsors

University of Otago
Lead SponsorUniversity

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Individuals will be classified as having RA if they meet the 2010 American College of Rheumatology/European Alliance of Associations for Rheumatology (previously known as European League Against Rheumatism) Rheumatoid Arthritis Classification Criteria. Individuals will be classified as having probable or definite RA-ILD if they meet pre-specified criteria: Probable ILD: Chest radiograph/chest CT evidence of ILD AND Treating physician diagnosis of ILD, Definite ILD: Chest radiograph/chest CT consistent with ILD AND 1 of: Diagnosis of ILD by a respiratory physician OR Presence of 2 longitudinal CT studies documenting the persistence of a diffuse interstitial pulmonary process consistent with reported interstitial pneumonia patterns in RA OR Lung biopsy consistent with ILD

Exclusion criteria

Individuals who do not meet the classification criteria for RA. Individuals who did not live in the region of the Canterbury District Health Board during the study periods.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 12, 2026