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[18F]F-DED PET Imaging of Reactive Astrocytes in Multiple Sclerosis

NCT07805473 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2026-09-04

No results posted yet for this study

Summary

Despite significant advancements in multiple sclerosis (MS) treatment over the past decade, a specific imaging biomarker for predicting disease progression remains lacking. This project is conducted as a non-therapeutic clinical trial with an investigational medicinal product and aims to validate PET imaging with the radiotracer \[18F\]fluorodeprenyl-D2 (\[18F\]F-DED) as a diagnostic tool for detecting chronic active lesions in MS and to evaluate its potential as a predictor of disease progression. Chronic astrocyte activation plays a key role in MS pathology, yet current imaging techniques, such as MRI, have limited sensitivity in identifying chronic neuroinflammation. By leveraging PET imaging with \[18F\]F-DED, which specifically targets activated astrocytes, this study seeks to provide a more precise assessment of chronic inflammatory lesions in MS patients. The project will follow a cross-sectional and longitudinal design: O1) To validate the ability of \[18F\]F-DED PET to identify chronic active lesions by comparing PET findings with MRI markers, including paramagnetic rings (PRLs) and determine its diagnostic accuracy; O2) To explore the relationship between astrocyte-targeted PET imaging and blood-based biomarkers of astrogliosis ; O3) To assess the predictive value of PET-detected chronic inflammation in disease progression over a three-year follow-up period through regression analysis, integrating clinical parameters such as disability progression (EDSS scores), relapse rates, and MRI changes. A total of 30 MS patients will be recruited from the MS Unit of Hospital del Mar and undergo PET and MRI imaging, following a single intravenous administration of the investigational radiotracer \[18F\]F-DED, together with MRI imaging with advanced image fusion techniques ensuring precise lesion localization. Machine learning models will be applied to imaging and clinical data to identify biomarkers associated with MS progression. By improving diagnostic accuracy and predicting disease evolution, this clinical trial aims to enhance patient stratification and treatment personalization.

Conditions

Interventions

DRUG

[18F]fluorodeprenyl-D2

Participants will receive a single intravenous administration of \[18F\]fluorodeprenyl-D2 (\[18F\]F-DED) at a dose of 200 ± 25 MBq, followed by PET/CT imaging to assess reactive astrocytes in multiple sclerosis lesions.

Sponsors & Collaborators

  • Parc de Salut Mar

    lead OTHER

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-12-01
Primary Completion
2029-12-01
Completion
2029-12-01

Countries

  • Spain

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07805473 on ClinicalTrials.gov