Clinical trial Recruiting at 1 site Phase1; Phase2 Interventional Ages 18 and up

Imaging HER2-low breast cancers using a specialized PET scan

Official title: HER2-PET Imaging Using 89Zr-trastuzumab in Low HER2-expressing (HER2-low) Breast Cancers

Run by Centre de recherche du Centre hospitalier universitaire de Sherbrooke · NCT06732336 · Data updated 2026-11-12

This study is testing a new type of PET scan that uses a special version of a breast cancer drug to see if it can better find HER2-low breast cancers that might have been missed before.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment40 (estimated)
SponsorCentre de recherche du Centre hospitalier universitaire de Sherbrooke
Academic / other
Drugs / interventionstrastuzumab, immunotherapy, pertuzumab, chemotherapy
Locations1 site (Sherbrooke, Quebec)
StatusRecruiting
StartedDecember 1, 2024
Main results expectedMarch 31, 2027
Study endsMarch 31, 2027
Registry record updatedMarch 31, 2026
Trial IDNCT06732336 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 18 and older with HER2-low metastatic breast cancer.

Probably not a fit

Patients who are pregnant, breastfeeding, or have significant hepatic or renal disorders may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial aims to evaluate the diagnostic potential of a new imaging technique that utilizes a radiolabeled version of the anti-HER2 antibody trastuzumab to detect HER2-low expressing breast cancers. The approach combines this imaging with existing FDG PET scans to improve the identification of metastatic breast cancer cases that may have previously been classified as HER2-negative. By focusing on HER2-low status, which has gained relevance due to recent advancements in immunotherapy, the study seeks to enhance the accuracy of cancer detection and treatment planning. Participants will undergo PET imaging with 89Zr-trastuzumab to assess its effectiveness in identifying these cancers.

Why it matters

Potential benefit: If successful, this study could lead to improved diagnostic accuracy for patients with HER2-low breast cancers, potentially guiding more effective treatment options.

How similar studies have gone: Other studies have shown promise in targeting HER2+ lesions with similar imaging techniques, indicating a potential for success in this novel approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* HER2-low metastatic breast cancer;
* At least 18 years-old ;
* Able to stay in supine position for at least 30 minutes;
* Written inform consent.

Exclusion Criteria:

* Pregnancy or concomitant breast feeding;
* Hepatic disorders such as cirrhosis, hepatitis, or any other liver condition judged as significant by the treating physician and that could impair the biliary excretion of 89Zr-trastuzumab;
* Renal disorders considered significant by the treating physician and that could impair the normal elimination of 89Zr-trastuzumab;
* Known hypersensitivity or allergy to trastuzumab, desferrioxamine, or any constituents of 89Zr-trastuzumab.

Where it's running

  • Centre de recherche du CHUS
    Sherbrooke, Quebec, Canada
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.