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5T4 Targeting Nanobody Probe for PET Imaging in Solid Tumors

8. maj 2026 opdateret af: Peking University Cancer Hospital & Institute

Preparation of 5T4 Tumor Novel Target Nanobody PET Probe and Clinical Translation in Lung Cancer

This study aims to evaluate a novel 5T4 targeted nanobody PET imaging tracer, 68Ga-MY, for the detection and evaluation of solid tumors.

The 5T4 oncofoetal antigen is considered a valuable tumor-associated antigen, which is expressed in many different cancers, but is rarely expressed in normal adult tissues. And cell surface expression of 5T4 is an important property for antibody-targeted therapies. It has been shown that 5T4 is expressed on tumour-initiating cells (TICs) and associated with worse clinical outcome. Moreover, decreased adherence due to 5T4 expression may be associated with cancer spread.

In this single-center, open-label, self-controlled study, approximately 20 patients with suspected or confirmed solid tumors will undergo PET/CT imaging using 68Ga-MY. The imaging results will be compared with 18F-FDG. The study will assess tracer uptake in tumor lesions and compare diagnostic performance between imaging methods. The results may help determine whether 68Ga-MY PET/CT can improve tumor detection, staging, and clinical evaluation in patients with solid tumors.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

20

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

  • Kina
    • Beijing Municipality
      • Beijing, Beijing Municipality, Kina, 100142
        • Beijing Cancer Hospital
        • Kontakt:

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:

  1. Patients with solid tumors;
  2. Presence of measurable lesions on imaging examinations;
  3. Expected survival ≥12 weeks.

Exclusion Criteria:

  1. Severe hepatic or renal dysfunction;
  2. Women who are planning pregnancy, pregnant, or breastfeeding;
  3. Unable to remain in supine position for 30 minutes;
  4. Refusal to participate in this clinical study;
  5. Diagnosis of claustrophobia or other psychiatric disorders;
  6. Other conditions deemed by the investigator as inappropriate for participation in 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
Eksperimentel: 68Ga-MY PET Imaging
All study participants will be allocated to this arm (single-arm study).Study participants will undergo 68Ga-MY PET/CT scans.After the participant rests quietly for 40 minutes or 1 hour, whole-body imaging of the head and torso will be performed using a United Imaging uEXPLORER Whole-Body PET/CT scanner at 1 h, 2 h, and 3 h post-injection. The scan range will cover from the vertex to the upper third of the thighs. Participants who required a dynamic scan underwent a 40-min serial scan after injection of 68Ga-MY. PET/CT static imaging was performed at 2 h and 3 h after injection.
Medicin: 18F-FDG
Alle undersøgelsesdeltagere vil gennemgå én 18F-FDG PET/CT-scanning.
Medicin: 68Ga-MY
68Ga-MY is an investigational tracer, and all participants will undergo 68Ga-MY scanning.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Radiation Dosimetry of 68Ga-MY
Tidsramme: 1. From the start of drug administration to 14 days after injection 2.Dynamic PET/CT scanning from 0 to 40 minutes post-injection, followed by static scans at 1 hour, 2 hours, and 3 hours post-injection. 3.Prior to each patient injection.
Radiation Dosimetry Organ-absorbed doses (mGy/MBq) and effective dose (mSv/MBq) calculated from PET/CT data using OLINDA/EXM software based on the MIRD schema. Organs assessed include, but are not limited to, the liver, spleen, kidneys, lungs, heart, bone marrow, and urinary bladder.
1. From the start of drug administration to 14 days after injection 2.Dynamic PET/CT scanning from 0 to 40 minutes post-injection, followed by static scans at 1 hour, 2 hours, and 3 hours post-injection. 3.Prior to each patient injection.
Standardized Uptake Value (SUV)
Tidsramme: 1. From the start of drug administration to 14 days after injection 2.Dynamic PET/CT scanning from 0 to 40 minutes post-injection, followed by static scans at 1 hour, 2 hours, and 3 hours post-injection. 3.Prior to each patient injection.
Parameters of SUV The maximum standardized uptake value (SUVmax), mean standardized uptake value (SUVmean) and tumor/background ratio (SUVR) of 68Ga-MY in target lesions were observed. SUVR was calculated as the SUVmax of the target lesion divided by the SUVmean of the reference normal tissue.
1. From the start of drug administration to 14 days after injection 2.Dynamic PET/CT scanning from 0 to 40 minutes post-injection, followed by static scans at 1 hour, 2 hours, and 3 hours post-injection. 3.Prior to each patient injection.
The ratio of Tumor SUV to background SUV (SUVR)
Tidsramme: 1. From the start of drug administration to 14 days after injection 2.Dynamic PET/CT scanning from 0 to 40 minutes post-injection, followed by static scans at 1 hour, 2 hours, and 3 hours post-injection. 3.Prior to each patient injection
SUVR was calculated as the SUVmax of the target lesion divided by the SUVmean of the reference normal tissue.
1. From the start of drug administration to 14 days after injection 2.Dynamic PET/CT scanning from 0 to 40 minutes post-injection, followed by static scans at 1 hour, 2 hours, and 3 hours post-injection. 3.Prior to each patient injection

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Peking University Cancer Hospital & Institute

Efterforskere

  • Ledende efterforsker: Hua Zhu, Peking University Cancer Hospital & Institute

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. juni 2026

Primær færdiggørelse (Anslået)

30. juni 2027

Studieafslutning (Anslået)

30. december 2027

Datoer for studieregistrering

Først indsendt

20. april 2026

Først indsendt, der opfyldte QC-kriterier

8. maj 2026

Først opslået (Faktiske)

15. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

15. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

8. maj 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 2024YJZ64

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

In accordance with the ICMJE data-sharing guidelines and Chinese data-privacy laws, raw clinical and imaging data were not publicly available to prevent compromise of patient privacy. However, the corresponding author will share deidentified patient-level data, imaging parameters (SUV values), and study protocol details if reasonably requested by the requestor.

IPD-delingstidsramme

Data access will be granted through a secure data sharing agreement for a period of 3 years after publication.

IPD-delingsadgangskriterier

Applicants must provide a methodologically sound research plan and obtain approval from their institutional ethics committee.

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL
  • SAP
  • ICF

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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