Evaluating a new imaging technique for lung disease linked to connective tissue disorders

Clinical Study of 18F Labeled Probe Targeting Fibroblast Activating Protein and Integrin avβ3 (FAPI-RGD) in Interstitial Lung Disease Associated With Connective Tissue Disease

Sichuan Provincial People's Hospital · NCT06143540

This study is testing a new imaging method to see if it can help doctors better understand lung disease in people with connective tissue disorders.

Quick facts

Study typeObservational
Enrollment30 (estimated)
Ages18 Years and up
SexAll
SponsorSichuan Provincial People's Hospital (other)
Locations1 site (Chengdu, Sichuan)
Trial IDNCT06143540 on ClinicalTrials.gov

What this trial studies

This observational study aims to assess the clinical utility of 18F-FAPI-RGD PET/CT imaging in patients with interstitial lung disease associated with connective tissue diseases. Participants will undergo a clinical evaluation followed by a PET/CT examination using the 18F-FAPI-RGD tracer, which targets specific proteins related to lung inflammation and fibrosis. The study will analyze the correlation between imaging results and various clinical parameters, including lung function and laboratory indicators.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and above who have been diagnosed with or are highly suspected of having interstitial lung disease associated with connective tissue diseases.

Not a fit: Patients who are pregnant, breastfeeding, or have other significant respiratory diseases or abnormal cardiopulmonary function may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve the diagnosis and management of interstitial lung disease in patients with connective tissue disorders.

How similar studies have performed: While the use of PET imaging in lung diseases is established, the specific application of 18F-FAPI-RGD in this context is novel and has not been extensively tested in prior studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age 18 and above
* Patients who have been diagnosed with, or are clinically highly suspected of ILD
* Patients who have been diagnosed with, or are clinically highly suspected of CTD-ILD

Exclusion Criteria:

* Pregnant or breastfeeding
* Patients with tumor, other respiratory diseases, and lung surgery
* Abnormal cardiopulmonary function or mental state, unable tolerate PET/CT

Where this trial is running

Chengdu, Sichuan

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Interstitial Lung Disease

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.