PET Imaging of Systemic Sclerosis Using FDG and 68Ga-DOTA-Siglec-9 (SYSPET)

December 2, 2024 updated by: Turku University Hospital

PET Imaging of Systemic Sclerosis Using 18F-FDG and 68Ga-DOTA-Siglec-9

This study evaluates the potential of positron emission tomography (PET)/computed tomography (CT) imaging to monitor disease activity in patients with systemic sclerosis (SSc). PET/CT imaging will focus on two pathological features of SSc, i.e. metabolic activity evaluated by glucose analog 18F-FDG, and expression of inflammation-inducible vascular adhesion protein 1 (VAP-1) evaluated by 68Ga-DOTA-Siglec-9 tracer.

Study Overview

Status

Enrolling by invitation

Conditions

Detailed Description

In patients with systemic sclerosis (SSc), the quantitative assessment of disease activity is still difficult. Identification of patients who unlikely respond to therapy before or early in a course of the treatment could reduce morbidity and produce cost-savings. This project will evaluate the potential of advanced functional imaging techniques to monitor disease activity. Functional imaging will focus on two pathological features of SSc, i.e. metabolic activity evaluated by glucose analog 18F-FDG positron emission tomography (PET)/computed tomography (CT), and expression of inflammation-inducible vascular adhesion protein 1 (VAP-1) evaluated by new 68Ga-DOTA-Siglec-9 tracer. If successful, the resulting techniques may prove invaluable as tools in the clinical practice and in drug research aiming to find new targets to the treatment of SSc.

Study Type

Observational

Enrollment (Estimated)

10

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Finland
      • Turku, Finland
        • Turku University Hospital, Turku PET Centre

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

Patients of Turku University Hospital or Kuopio University Hospital with active systemic sclerosis.

Description

Inclusion Criteria:

  • Adults with active systemic sclerosis (SSc).
  • Onset of SSc (defined as first non-Raynaud symptom) not more than 5 years ago.
  • Clinically active disease with proximal nailfold capillary abnormalities detected with videocapillaroscopy and/or raised inflammatory markers (CRP or ESR).

Exclusion Criteria:

  • Underage, pregnant, breastfeeding, handicapped or prisoner
  • History of or current inflammatory joint disease or autoimmune disease other than SSc.
  • History of treatment with, prior to this study, immunosuppressives or disease-modifying anti-rheumatic drugs (DMARDs) such as methotrexate, leflunomide, azathioprine, mycophenolate, cyclophosphamide or biologic agents such as anti-TNF inhibitors, abatacept, or rituximab. Hydroxychloroquine is allowed in the history (≥3 months prior to PET study).
  • Intra-articular or parenteral corticosteroids ≤4 weeks prior to PET/CT study.
  • Prostanoids or other vasoactive treatments like phosphodiesterase-5 inhibitors or endothelin receptor antagonists ≤4 weeks prior to PET/CT study (the use of calcium channel inhibitors is allowed).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Detection of inflammation in PET/CT images
Time Frame: Day 1
Standardized uptake value of PET tracer at the sites of inflammation
Day 1

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Turku University Hospital

Collaborators

Kuopio University Hospital

Investigators

  • Principal Investigator: Anne Roivainen, Turku University Hospital, Turku PET Centre

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

November 29, 2021

Primary Completion (Estimated)

December 31, 2025

Study Completion (Estimated)

December 31, 2026

Study Registration Dates

First Submitted

October 25, 2021

First Submitted That Met QC Criteria

October 25, 2021

First Posted (Actual)

November 5, 2021

Study Record Updates

Last Update Posted (Actual)

December 4, 2024

Last Update Submitted That Met QC Criteria

December 2, 2024

Last Verified

December 1, 2024

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2110/2021

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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