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Pilot Study of [68Ga]Ga-ABY-025 Imaging in Patients Undergoing Treatment With HER2-targeted Therapy

Pilot Study of [68Ga]Ga-ABY-025 Imaging in Patients Undergoing Treatment With HER2-targeted Therapy

Status
Recruiting
Phases
Early Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06828588
Enrollment
30
Registered
2025-02-14
Start date
2026-04-16
Completion date
2029-12-01
Last updated
2026-05-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HER2, HER2 + Breast Cancer, HER2 + Gastric Cancer, Squamous Cell Carcinoma of Head and Neck, Esophageal Squamous Cell Carcinoma, HER 2 Low-expressing Breast Cancer, Locally Advanced Cancer, Metastatic Cancer

Keywords

HER2, cancer, advanced cancer, metastatic, IHC, FISH, trastuzumab, T-DM1, Pertuzumab, Margetuximab, Neratinib, Lapatinib, Tucatinib, Everolimus

Brief summary

The purpose of this study is to determine if the radiotracer, \[68Ga\]Ga-ABY-025, used for PET imaging can help us better identify and visualize lesions or tumors, in patients who are receiving standard of care therapy HER2+ cancers.

Detailed description

This study will assess a dose of ABY-025 followed by a tracer dose of \[68Ga\]Ga-ABY-025 in subjects with HER2+ solid cancers, or HER2+ or low breast cancer undergoing or planning to undergo treatment with standard-of-care HER2-targeted therapy for an FDA-approved indication. The study drug will be administered and \[68Ga\]Ga-ABY-025 PET/CT scan will be obtained the same day after injection of study drug. Patients will have a follow visit 2-7 days post injection of the study drug. Additionally, subjects will undergo standard of care evaluation of their advanced disease per the discretion of their treating physician.

Interventions

DRUG[68Ga]Ga-ABY-025

Subjects receive a tracer dose of \[68Ga\]Ga-ABY-025 and will receive a PET/CT scan a few hours after the injection.

Sponsors

Vanderbilt-Ingram Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Age ≥ 18 years. 2. Patients with unresectable locally advanced or metastatic cancer who are eligible for standard of care treatment with HER2-targeted therapy per the discretion of their treating physician for an FDA-approved indication. Patients who are planning to start HER2-targeted therapy at the time of study enrollment. Patients who have recently begun HER2 treatment and have received no more than 6 cycles will be eligible for enrollment. 3. Must have a previous biopsy demonstrating HER2 expression in at least one lesion (HER2+ solid cancer, or breast cancer patients who are HER2+ or HER2-low) as defined by IHC and FISH studies or with HER2 amplification as defined by a liquid biopsy that was done as standard of care testing for the patient's cancer type. 4. Measurable disease on CT, FDG-PET, or MRI imaging for RECIST evaluation; patient must have measurable disease outside the liver. 5. Life expectancy of at least 6 months. Patients with brain metastases are permitted to enroll in this study.

Exclusion criteria

1. Measurable sites of disease only in the liver. 2. Inability to comply with study procedures. 3. Hypersensitivity or allergy to any component of \[68Ga\]Ga-ABY-025. 4. Pregnant or breastfeeding. 5. HER2-negative cancers that have no FDA approved indication for treatment with HER2-directed therapy. 6. Inability to lie flat for 30 minutes during an imaging session. 7. Medical or psychiatric co-morbidities that, in the opinion of the treating physician, would prevent the patient from successfully participating in the study.

Design outcomes

Primary

MeasureTime frameDescription
Determine safety of [68Ga]Ga-ABY-025 PET by assessing for adverse events following the injection and PET imaging.up to 21± 14 days from second administration of [68Ga]Ga-ABY-025. Assessments will be performed as part of the routine standard of care for patients undergoing HER2-targeted anti-cancer treatment.Outcome Measure: After study enrollment, subjects will receive \[68Ga\]Ga-ABY-025 infusion and undergo PET/CT scan. Patients will be immediately assessed for adverse events within the first 30 minutes of infusion and 2-7 days post-infusion from the study coordinator. Adverse events will be monitored up to 21±14 days following the infusion of study drug. Repeat infusion and imaging will be obtained either at the time of treatment discontinuation or at 12 months from study consent and will have the same safety monitoring parameters. While there are expected adverse events related to anti-cancer therapy, we will specifically be reporting adverse events that are "definitely related" or "probably related" to the study agent.

Countries

United States

Contacts

CONTACTMakenna Brown
makenna.l.brown@vumc.org+1 (615)421-4370

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 9, 2026