Characterizing Spondyloarthritis With 68Ga-FAPI PET/CT

NCT ID: NCT05999643

Last Updated: 2023-08-21

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

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-07-01

Study Completion Date

2025-08-01

Brief Summary

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To evaluate the potential usefulness of 68Ga-FAPI PET/CT for the diagnosis, inflammation evaluation and prognosis prediction in spondyloarthritis.

Detailed Description

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Spondyloarthritis (SpA) is a chronic inflammatory rheumatic disease characterized by inflammatory back pain, enthesitis, dactylitis, and the formation of syndesmophytes, all of which significantly affect a patient's healthy functioning and general quality of life. Prevalence of underlying malignancy is high in patients with SpA. Radiographic sacroiliitis became a crucial finding in the diagnosis and classification of patients.

68Ga-FAPI has been developed as tracers specific for fibroblast-activation protein (FAP), which is overexpressed in activated fibroblasts in various type of cancers and autoimmune diseases, such as rheumatoid arthritis, IgG4-related diseases and interstitial lung diseases.

Recently the investigators have published articles of the application of 68Ga-FAPI in IgG4-related disease and rheumatoid arthritis, which showed it was more sensitive than FDG in detecting a certain type of inflammation. Increased 68Ga-FAPI Uptake in ankylosing spondylitis in a patient with rectal cancer has also been reported in a case report, indicating the potential utility of FAP-targeted PET/CT imaging for diagnosis and disease assessment in spondyloarthritis.

Thus, this prospective study is going to investigate utility of 68Ga-FAPI PET/CT in diagnosis of spondyloarthritis as well as inflammation assessment in joints including the sacroiliac (SI) joints, spine and peripheral joints. Also, this study aims to investigate potential utility of 68Ga-FAPI PET/CT in predicting treatment response and disease prognosis such as formation of syndesmophytes and erosive changes.

Conditions

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Spondyloarthritis Axial Spondyloarthritis Ankylosing Spondylitis

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Inject 68Ga-FAPI and then perform PET/CT scan.

Inject 68Ga-FAPI and then perform PET/CT scan

Group Type EXPERIMENTAL

Drug: 68Ga-FAPI

Intervention Type DIAGNOSTIC_TEST

Intravenous injection of one dosage of 111-185 MBq (3-5 mCi) 68Ga-FAPI. Tracer doses of 68Ga-FAPI will be used to image SpA lesions in SI joints, spine, musculoskeletal and the extra-articular involvement by PET/CT.

Interventions

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Drug: 68Ga-FAPI

Intravenous injection of one dosage of 111-185 MBq (3-5 mCi) 68Ga-FAPI. Tracer doses of 68Ga-FAPI will be used to image SpA lesions in SI joints, spine, musculoskeletal and the extra-articular involvement by PET/CT.

Intervention Type DIAGNOSTIC_TEST

Other Intervention Names

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68Ga-fibroblast activating protein inhibitors

Eligibility Criteria

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Inclusion Criteria

1. A diagnosis of SpA according to the ASAS (Assessment of Spondyloarthritis International Society) classification criteria for SpA.
2. Adult men or women 18 and ≤ 65 years of age at the time of signing the informed consent (ICF).
3. participants who were able to provide informed consent (signed by participant or legal representative) and assent according to the guidelines of the Clinical Research Ethics Committee.

Exclusion Criteria

1. Pregnancy;
2. Breastfeeding;
3. known allergy against FAPI;
4. any medical condition that in the opinion of the investigator may significantly interfere with study compliance.
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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The First Affiliated Hospital of Xiamen University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Guixiu Shi, PhD

Role: STUDY_DIRECTOR

The First Affiliated Hospital of Xiamen University

Locations

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The first affiliated hospital of Xiamen University

Xiamen, Fujian, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Yuan Liu, MD

Role: CONTACT

86 0592-2137749

Haojun Chen, PhD

Role: CONTACT

86 0592-2137166

Facility Contacts

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Qiuwan Wu, PhD

Role: primary

86 0592-2137507

References

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Chen Y, Yu L, Chen S, Liu W, Han H, Pang Y, Lin Q, Li Y, Chen L, Cai J, Zhao L, Sun L, Shi G, Chen H, Liu Y. Fibroblast activation protein-targeted PET/CT with 68Ga-FAPI-46 for evaluation of structural damage and inflammation in axial spondyloarthritis: a prospective study. Eur J Nucl Med Mol Imaging. 2025 Oct;52(12):4661-4673. doi: 10.1007/s00259-025-07310-2. Epub 2025 May 1.

Reference Type DERIVED
PMID: 40310563 (View on PubMed)

Other Identifiers

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FAPI in SpA

Identifier Type: -

Identifier Source: org_study_id

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