Clinical Study of 68Ga-labeled Novel Nectin-4 Bicyclic Peptide PET/CT for Imaging of Solid Tumors With High Nectin-4 Expression

December 21, 2025 updated by: The First Affiliated Hospital of Soochow University
Tumors are one of the major diseases threatening human health, among which solid tumors account for a considerable proportion. Nectin-4, as an important cell adhesion molecule, shows a highly expressed state in various solid tumors. In triple-negative breast cancer, the high expression rate of Nectin-4 can reach more than 50%, and it is closely associated with tumor invasion, metastasis and poor prognosis. Relevant studies have shown that the five-year survival rate of triple-negative breast cancer patients with high expression of Nectin-4 is significantly lower than that of patients with low expression. In urothelial carcinoma, the positive expression rate of Nectin-4 is also relatively high, reaching 40%-60%, and it is a highly potential target for tumor treatment and diagnosis. Its abnormal expression in solid tumors has opened up a new direction for the early diagnosis and targeted therapy of tumors. However, at present, the precise diagnosis and effective treatment of solid tumors with high expression of Nectin-4 still face many challenges. There is an urgent need for new technologies and methods to improve the diagnosis and treatment level in order to improve the prognosis of patients. Therefore, this study aims to develop a method targeting the Nectin4 bicyclic peptide to achieve non-invasive visualization of Nectin4 expression in tumors. This approach may also contribute to the formulation and optimization of clinical treatment strategies

Study Overview

Status

Enrolling by invitation

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

10

Phase

  • Not Applicable

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

  • China
    • Jiangsu
      • Suzhou, Jiangsu, China, 215000
        • The First Affiliated Hospital of Soochow University

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • 1. Age: 18 to 75 years old (including the boundary value), gender not limited. 2. Solid tumors (such as urothelial carcinoma, breast cancer, lung cancer, etc.) that have been pathologically diagnosed with high expression of Nectin-4 within one month before imaging.

    3. At least one evaluable tumor lesion (primary or metastatic) exists. 4. Voluntarily sign the informed consent form and be able to cooperate with the research process.

    5.ECOG score: 0 to 2 points, expected survival period: ≥6 months.

Exclusion Criteria:

  • 1. Combined with other active malignant tumors (excluding non-melanoma skin cancer or carcinoma in situ).

    2. Severe heart, liver and kidney insufficiency (such as ALT/AST >3 times ULN, creatinine clearance rate <30 mL/min).

    3. Uncontrolled systemic infections or immune system diseases. 4. Pregnant or lactating women, or patients of childbearing age who have not taken effective contraceptive measures.

    5. Previously received Nectin-4 targeted therapy (such as Enfortumab vedotin).

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

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 68Ga-Nectin4 bicyclic peptide PET/CT imaging
Diagnostic test: Immunohistochemistry
Nectin4 Immunohistochemistry testing

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
PET/CT imaging SuV value
Time Frame: 0-45 minutes, 60 minutes
0-45 minutes, 60 minutes

Collaborators and Investigators

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

Sponsor

The First Affiliated Hospital of Soochow University

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)

July 3, 2025

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2026

Study Registration Dates

First Submitted

December 21, 2025

First Submitted That Met QC Criteria

December 21, 2025

First Posted (Actual)

January 6, 2026

Study Record Updates

Last Update Posted (Actual)

January 6, 2026

Last Update Submitted That Met QC Criteria

December 21, 2025

Last Verified

December 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2025-68Ga-Nectin-4-peptide 02

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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