Imaging Study of a TROP2 Binder in Metastatic UC, HR+ and HER2- Breast Cancer, TNBC, and NSCLC

June 22, 2026 updated by: RayzeBio, Inc.

A Phase 0 Imaging Study to Assess the Feasibility, Biodistribution, and Dosimetry of a Trophoblast Cell Surface Antigen 2 (TROP2) Binder in Metastatic Urothelial Cancer (UC), Hormone Receptor-Positive (HR+) and Human Epidermal Growth Factor Receptor 2-Negative (HER2-) Breast Cancer, Triple-Negative Breast Cancer (TNBC), and Non-Small-Cell Lung Cancer (NSCLC)

This imaging study aims to assess the feasibility, biodistribution, and dosimetry of a TROP2 binder in subjects with metastatic UC, HR+ and HER2- breast cancer, TNBC, or NSCLC.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

40

Phase

  • Early Phase 1

Contacts and Locations

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

Study Contact

Study Locations

  • New Zealand
      • Christchurch, New Zealand
        • Research Facility
        • Contact:
          • Site Contact

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:

  • Are at least 18 years old at the time of signing the informed consent form (ICF)
  • Have biopsy proven metastatic UC, HR+ and HER2- breast cancer, TNBC, or NSCLC

Exclusion Criteria:

  • TROP2-targeting antibody-drug conjugates (ADCs) such as sacituzumab govitecan or datopotamab deruxtecan, should be discontinued at least 90 days prior to administration of RYZ211 and RYZ212
  • For Women of Childbearing Potential: Are pregnant or breastfeeding

Note: Additional criteria may apply and will be assessed by the study site

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: RYZ211/212
Diagnostic test: RYZ211/212
Imaging Agent

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To evaluate the biodistribution of RYZ211 (68Ga-RAYZ-2453) in subjects with metastatic UC, HR+ and HER2- breast cancer, TNBC, or NSCLC
Time Frame: Study duration (1 year)
To evaluate the biodistribution of RYZ211 using SUV (mean, maximum, and peak) of critical organs (blood pool, salivary glands, thyroid, pancreas, liver, kidney [cortex], bone) and tumors; tumor-to-normal organ tracer uptake ratios in subjects with metastatic UC, HR+ and HER2- breast cancer, TNBC, or NSCLC
Study duration (1 year)
To evaluate the long biodistribution and radiation absorbed doses in critical organs and tumors, and the effective dose of RYZ212 (177Lu-RAYZ-2453) in subjects with metastatic UC, HR+ and HER2- breast cancer, TNBC, or NSCLC
Time Frame: Study duration (1 year)
To evaluate the long biodistribution and radiation absorbed doses in critical organs and tumors, and the effective dose of RYZ212 by using calculated mean TIAC (MBq · h/MBq), radiation absorbed dose coefficients (mGy/MBq) and absorbed dose (Gy) to critical organs (salivary glands, thyroid, pancreas, liver, kidneys, bone marrow), calculated mean TIAC (MBq · h/MBq) and radiation absorbed dose coefficients (mGy/MBq) and absorbed dose (Gy) to tumors, calculated whole-body effective dose (mSv/MBq)
Study duration (1 year)

Collaborators and Investigators

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

Sponsor

RayzeBio, Inc.

Investigators

  • Study Director: Freddy Escorcia, RayzeBio, Inc.
  • Study Director: Heying Duan, RayzeBio, Inc.

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 (Estimated)

June 1, 2026

Primary Completion (Estimated)

July 1, 2027

Study Completion (Estimated)

October 1, 2027

Study Registration Dates

First Submitted

June 22, 2026

First Submitted That Met QC Criteria

June 22, 2026

First Posted (Actual)

June 26, 2026

Study Record Updates

Last Update Posted (Actual)

June 26, 2026

Last Update Submitted That Met QC Criteria

June 22, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • RYZ211-001

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.

Clinical Trials on Breast Cancer

Clinical Trials on RYZ211/212

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Panama

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe