Development of FAPI PET as a Non-invasive Biomarker of Pulmonary Fibrogenesis

ConditionFibrosis Lung
Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorUniversity of Wisconsin, Madison

About this trial

The goal of this clinical trial is to gain more information about how fibroblast activation protein inhibitor (FAPI) binds to a certain type of cells in fibrotic lung tissue and how this information can be used to better diagnose and track fibrotic lung disease activity.

Participants will undergo up to 4 PET/MRI scans using the FAPI radiotracer.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age 18 years or older

Able and willing to provide informed consent

Group A: Clinically evaluated for need for initiation of new treatment (in patients not on current treatment), initiation of change in current treatment, or addition of new treatment (to any current treatment) in the setting of fibrotic hypersensitivity pneumonitis (HSP) or idiopathic pulmonary fibrosis (IPF), per standard of clinical care at UW Health.

Group B: Clinically evaluated and stable without need for initiation of new treatment (in patients not on current treatment), initiation of change in current treatment, nor addition of new treatment (to any current treatment) in the setting of fibrotic hypersensitivity pneu-monitis (HSP) or idiopathic pulmonary fibrosis (IPF), per standard of clinical care at UW Health.

Disqualifiers

Participant is unable or unwilling to provide informed consent

Participant is pregnant

Participant with contraindication(s) to or inability to undergo PET/MRI

Participants with contraindications to GBCA will be asked to undergo research imaging without the use of contrast. Contraindications may be severe kidney disease or previously documented GFR < 30 ml/min/1.73 m2

Trial design

Design model

Parallel

Treatments tested in this trial

  • FAPI tracer

    Drug

    radioactive substance called a "tracer" injected into the arm

  • PET/MRI

    Device

    positron emission tomography (PET) takes pictures of inside of the body

Treatment groups

50 Participants
are divided into 3 treatment groups
Group A: Group A - 3 scansExperimental treatment 2 interventions
Group B: Group B - 2 scansExperimental treatment 2 interventions
Group C: Group B CrossoverExperimental treatment 2 interventions

Trial outcomes

Primary outcomes

1

Change in FAPI uptake

FAPI uptake of fibrotic lesions as measured by Standardized Uptake Value (SUV). SUV quantifies the tracer uptake, helping to differentiate between normal and abnormal tissues and assess the extent of tumor activity.

Time frame
Baseline to 6 months

Secondary outcomes

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.