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An observational study to determine biomarkers for prognosis of lung lesions in patients with polymyositis/dermatomyositis complicated by interstitial lung disease

An observational study to determine biomarkers for prognosis of lung lesions in patients with polymyositis/dermatomyositis complicated by interstitial lung disease - PM/DM-ILD biomarkers study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000046198
Enrollment
125
Registered
2021-12-01
Start date
2021-12-15
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Polymyositis/dermatomyositis complicated with interstitial lung disease (PM/DM-ILD)

Interventions

None listed

Sponsors

Nagasaki University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Patients diagnosed with PM/DM according to the criteria of the Ministry of Health, Labour and Welfare, Bohen and Peter criteria, or Sontheimer's Clinically amyopathic dermatomyositis (CADM), or patients with positive myositis-specific autoantibodies 2) Patients with ILD 3) Patients who are 20 years of age or older at the time of obtaining consent. 4) Patients planning to receive immunosuppressive therapy or receiving corticosteroids only within 8 weeks. 5) Patients with fibrotic lung disease that affects lung capacity by more than 10% on high-resolution CT. 6) Patients with FVC more than 50% of predicted and DLCO of 20-89% predicted. 7) ability and willingness to provide written informed consent and comply with the requirements of the study protocol.

Exclusion criteria

Exclusion criteria: 1) Patients who have received oral corticosteroids for more than 8 weeks prior to obtaining consent. 2) Patients with malignant tumors. 3) Patients who are using or have used an anti-fibrotic therapy. 4) Patients who have undergone more than lobectomy. 5) Other patients deemed inappropriate by the investigator.

Design outcomes

Primary

MeasureTime frame
Search for biomarkers associated with change in high-resolution CT fibrosis volume and FVC change at 52 weeks from baseline

Secondary

MeasureTime frame
FVC at baseline assessment, 26 weeks, and 52 weeks 5% or more deterioration in relative change in %FVC at 52 weeks 5% or more improvement in relative change in %FVC at 52 weeks 10% or more deterioration in relative change in %FVC at 52 weeks 10% or more improvement in relative change in %FVC at 52 weeks Lung fibrosis score at baseline assessment and at 52 weeks

Countries

Japan

Contacts

Public ContactTakashi Igawa

Nagasaki University Graduate School of Biomedical Sciences Department of Immunology and Rheumatology

tk-igawa@nagasaki-u.ac.jp095-819-7262

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026