Clinical trial Recruiting at 1 site Phase 3 Interventional Ages 18 to 99 Women only

Evaluating Somatostatin Receptor Expression in Metastatic Breast Cancer Patients

Official title: Evaluation of Somatostatin Receptor Expression in PET 68Ga-DOTATOC in Patients Followed for Metastatic Breast Cancer

Run by University Hospital, Grenoble · NCT06611891 · Data updated 2026-11-12

This study is testing if a special type of PET scan can help women with metastatic breast cancer see how their cancer is spreading and what treatment options might work best for them.

More Breast Cancer Metastatic trials

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years to 99 Years
SexWomen only
Enrollment25 (estimated)
SponsorUniversity Hospital, Grenoble
Academic / other
Locations1 site (Grenoble)
StatusRecruiting
StartedJanuary 6, 2025
Main results expectedOctober 2025
Study endsOctober 2026
Registry record updatedMarch 4, 2025
Trial IDNCT06611891 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are women over 18 with metastatic breast cancer who have completed at least one line of systemic therapy and have identifiable metastatic lesions.

Probably not a fit

Patients with other active neoplastic diseases or those who are minors will 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 interventional study aims to evaluate somatostatin receptor expression using PET scans with 68Ga-DOTATOC in women diagnosed with metastatic breast cancer. It is a prospective, monocentric, non-controlled, and open-label study that includes patients who have undergone at least one line of systemic therapy. The study focuses on assessing the feasibility of using 68Ga-DOTATOC PET scans to identify and evaluate metastatic lesions in patients with specific receptor profiles. The goal is to improve understanding of metastatic breast cancer progression and treatment options.

Why it matters

Potential benefit: If successful, this study could enhance the ability to identify and target metastatic breast cancer lesions, potentially leading to improved treatment outcomes.

How similar studies have gone: While the use of 68Ga-DOTATOC PET scans has been validated in neuroendocrine tumors, its application in metastatic breast cancer is relatively novel and untested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age over 18
* Patients with metastatic breast cancer who have completed at least one first line of systemic therapy for metastatic breast cancer
* Patient labeled on the primary lesion ER+HER2- (20)
* Presence of metastatic liver and bone lesions identifiable with 18F-FDG PET-Scan
* Presence of at least 10 identifiable secondary lesions in 18F-FDG PET-Scan
* No therapeutic change between 18F-FDG PET-Scan and 68Ga-DOTATOC PET-Scan.
* Performing the PET scan with 68Ga-DOTATOC within a maximum of 21 days after the 18F-FDG PET-Scan
* Person affiliated to or benefiting from social security
* Person who has given written informed consent

Exclusion Criteria:

* Patients followed or with history of other active neoplastic pathology (including neuroendocrine tumor)
* Known allergy to 68Ga-DOTATOC or its excipients
* Subject refusing to sign the consent to participate
* Minor subject
* Subject excluded from another study
* Persons referred to Articles L1121-5 to L1121-8 of the Public Health Code (CSP)
* Subject cannot be contacted in case of emergency

Where it's running

  • CHU Grenoble Alpes
    Grenoble, France
    Recruiting

Study contacts

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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.