FAPI PET for Lung Fibrosis

NCT ID: NCT05365802

Last Updated: 2025-07-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Clinical Phase

EARLY_PHASE1

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-11-16

Study Completion Date

2026-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This is a prospective exploratory biodistribution study in patients with interstitial lung disease (ILD).

The purpose of this research study is to determine where and to which degree the FAPI tracer (68Ga-FAPI-46) accumulates in normal and fibrotic lung tissues of patients with interstitial lung disease.

The study will include patients with interstitial lung disease who have or will initiate a new ILD medication OR will undergo tissue biopsy or surgery of the lung.

The study will include 30 patients, the upper limit for PET imaging studies conducted under the Radioactive Drug Research Committee (RDRC) purview.

Participants will be injected with up to 7 mCi of 68-GaFAPi and will undergo one PET/CT scan and one High Resolution CT of the lungs.

The study is sponsored by Ahmanson Translational Theranostic Division at UCLA.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

ILD is a group of respiratory diseases that affect the interstitium of the lungs. A major problem is the highly variable course of fibrosing ILD: some patients remain stable without treatment, and others progress rapidly despite pharmacotherapy.

Novel diagnostic approaches for risk stratification with more accurate prediction of the course of fibrosing ILD could potentially improve prognostication and ultimately lead to better survival in these patients.

Persistent activation and local accumulation of myofibroblasts is a common feature of fibrotic diseases. FAP is a promising target for molecular imaging of fibroblast activation and detection of sites of active tissue remodeling.

Small molecule inhibitors of FAP have been labeled with positron-emitting isotopes for PET imaging. 68Ga-FAPi-46 can serve as diagnostic biomarker in ILD.

In this study, the investigators will evaluate the 68Ga-FAPi-46 biodistribution in patients with ILD and observe the correlation of FAP expression and FAPi radiopharmaceutical uptake.

The primary objective of this study is to evaluate the biodistribution of the new FAP-targeted PET tracer, 68Ga-FAPi- 46, in patients with ILD.

OUTLINE:

1. Participants with Interstitial Lung Disease will be asked to undergo a 68Ga-FAPi-46 PET/CT and one High Resolution CT of the lungs
2. Patients will be followed until pathology is obtained during clinical care. (if undergoing surgery or biopsy)
3. Biodistribution results will be assessed comparing pathological findings and PET/CT results

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Interstitial Lung Disease Idiopathic Interstitial Pneumonias Drug-Induced Pneumonitis Hypersensitivity Pneumonitis Radiation Pneumonitis Pneumoconiosis Pulmonary Fibrosis

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NA

Intervention Model

SINGLE_GROUP

Single Group Assignment
Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

68Ga-FAPi-46

Patients receive 68Ga-FAPi-46 IV and undergo PET/CT scan over 20-50 minutes

Group Type EXPERIMENTAL

68Ga-FAPi-46

Intervention Type DRUG

Radiopharmaceutical will be administered via IV

Computed Tomography

Intervention Type PROCEDURE

As part of PET/CT scan

Positron Emission Tomography

Intervention Type PROCEDURE

As part of PET/CT scan

High Resolution Computed Tomography

Intervention Type PROCEDURE

Will be conducted immediately after FAPI PET/CT

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

68Ga-FAPi-46

Radiopharmaceutical will be administered via IV

Intervention Type DRUG

Computed Tomography

As part of PET/CT scan

Intervention Type PROCEDURE

Positron Emission Tomography

As part of PET/CT scan

Intervention Type PROCEDURE

High Resolution Computed Tomography

Will be conducted immediately after FAPI PET/CT

Intervention Type PROCEDURE

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

Gallium-68-FAPi-46 CT scan PET scan

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Patients with ILD confirmed by CT at time of staging
* Patients who have initiated or will initiate a new ILD medication with 3 months of enrollment OR Patients who are scheduled to undergo tissue biopsy or surgery of the lung
* Patients are ≥ 18 years old at the time of the radiotracer administration
* Patient can provide written informed consent

Exclusion Criteria

* Patient is pregnant or nursing
* Patients with active infectious lung disease
* Patients not expected to comply with the protocol requirements, not able to understand or follow trial procedures
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

University of California, Los Angeles

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Jeremie Calais

Clinical Research Director, Ahmanson Translational Theranostics

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Jeremie Calais, MD

Role: PRINCIPAL_INVESTIGATOR

Clinical Research Director, Ahmanson Translational Theranostics

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

UCLA / Jonsson Comprehensive Cancer Center

Los Angeles, California, United States

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

United States

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Stephanie Lira

Role: CONTACT

3102067372

Contreras M Maria, BS

Role: CONTACT

3102067372

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

IRB21-000678

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

FAPI-74 PET/CT in Adults With Fibrosis
NCT06413355 RECRUITING PHASE1
68Ga-FAPi-46 PET/CT Scan in Imaging Patients With Sarcoma
NCT04457258 ACTIVE_NOT_RECRUITING EARLY_PHASE1
68Ga-FAPI PET/CT in Malignant Tumors
NCT05034146 RECRUITING NA
68-Ga-FAPI PET Imaging in Malignancy
NCT04023240 WITHDRAWN PHASE2
Ga-68 FAPI PET Before Immunotherapy
NCT06451536 RECRUITING NA