18F-S2P PET Imaging in the Evaluation of Large Artery Atherosclerosis
8. september 2026 opdateret af: First Affiliated Hospital of Zhejiang University
A Prospective Clinical Study of 18F-S2P-Targeted STAB2 Receptor PET Imaging in the Diagnosis of Large Artery Atherosclerosis
The aim of this study is to evaluate the lesion detection performance and safety of 18F-S2P positron emission tomography (PET) in patients with large-artery atherosclerosis.
Studieoversigt
Status
Ikke rekrutterer endnu
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
Atherosclerotic lesions contain macrophages expressing stabilin-2 (STAB2), which can be targeted by 18F-S2P.
However, conventional vascular imaging modalities mainly reflect the anatomical characteristics of atherosclerotic lesions and have limited ability to assess plaque inflammatory activity, which may affect the identification and risk evaluation of vulnerable plaques.
In addition, routine vascular imaging lacks specific molecular biomarkers for evaluating plaque inflammation.
18F-S2P is a novel 18F-labeled peptide tracer targeting STAB2.
Preclinical data suggest that 18F-S2P has favorable biodistribution and lesion-targeting properties, with no apparent toxicity observed in animal studies.
Patients can undergo PET imaging 0.5 hours after injection without special preparation.
Our study will assess the safety profile, image quality, and lesion detection performance of 18F-S2P.
Patients with clinically suspected large-artery atherosclerosis will be enrolled in this study.
Undersøgelsestype
Interventionel
Tilmelding (Anslået)
200
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiekontakt
- Navn: Dilibire Adili
- Telefonnummer: 86 19916941901
- E-mail: 12418731@zju.edu.cn
Studiesteder
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Zhejiang, Kina
- The First Affiliated Hospital of Zhejiang University school of medicine
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Kontakt:
- Dilibire Adili
- Telefonnummer: 86 19916941901
- E-mail: 12418731@zju.edu.cn
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Kontakt:
- Xinhui Su
- Telefonnummer: 86 13806071262
- E-mail: suxinhui@zju.edu.cn
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Ingen
Beskrivelse
Inclusion Criteria
- Aged 40 to 80 years old;
- Clinically suspected large artery atherosclerosis;
- Able to understand and comply with all study requirements;
- Participants aged ≥65 years with full civil capacity may sign informed consent independently; those with limited civil capacity shall sign the informed consent together with their legal guardians.
Exclusion Criteria
- Pregnant or breastfeeding female patients;
- Patients with severe claustrophobia, radiophobia, mental disorders or primary emotional disorders;
- Abnormal laboratory indicators at screening: hemoglobin (Hb) <10 g/dL, white blood cell (WBC) <3×10^9/L, platelet (PLT) <90×10^9/L, or creatinine clearance (CrCl) <40 mL/min;
- Subjects received ionizing radiation outside this trial within the past year leading to an annual radiation exposure exceeding 50 mSv;
- Subjects received any investigational drugs or devices with unconfirmed safety/efficacy within one month before enrollment;
- Any condition judged by the principal investigator that may bring potential harm to participants during the trial.
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Diagnostisk
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
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Eksperimentel: 18F-S2P PET/CT in Large-Artery Atherosclerosis
Each patient receives a single intravenous injection of 18F-S2P 3.7 MBq/kg and undergoes PET/CT scan after 30 min post-injection.
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Patients with large-artery atherosclerosis receive 3.7 MBq/kg of 18F-S2P intravenously followed by PET/CT after 30 min of injection.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Sensitivity of 18F-S2P PET/CT
Tidsramme: through study completion, an average of 1 year
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Sensitivity of 18F-S2P PET/CT for detecting inflammatory atherosclerotic plaques in patients with large-artery atherosclerosis
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through study completion, an average of 1 year
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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18F-S2P PET performance compared with conventional imaging
Tidsramme: up to 24 months
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Imaging performance of 18F-S2P PET/CT compared with carotid ultrasound
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up to 24 months
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18F-S2P PET performance compared with conventional imaging
Tidsramme: up to 24 months
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Imaging performance of 18F-S2P PET/CT compared with magnetic resonance angiography (MRA)
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up to 24 months
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Quantitative uptake parameters of 18F-S2P in atherosclerotic plaques
Tidsramme: through study completion, 3-4 years
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Evaluate 18F-S2P uptake parameters within atherosclerotic lesions
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through study completion, 3-4 years
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Anslået)
1. september 2026
Primær færdiggørelse (Anslået)
1. september 2029
Studieafslutning (Anslået)
1. september 2031
Datoer for studieregistrering
Først indsendt
24. august 2026
Først indsendt, der opfyldte QC-kriterier
8. september 2026
Først opslået (Faktiske)
11. september 2026
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
11. september 2026
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
8. september 2026
Sidst verificeret
1. september 2026
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
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- S2P-AS
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