NCT06629233

Brief Summary

The goal of this interventional, prospective research on human bodily material is to discover new, cancer-specific molecular structures (i.e. glycopeptides) within surgically removed, estrogen receptor positive breast cancer tumors. The main goal it aims to achieve is: To discover tumor-specific targets, that allow the use of very potent immunotherapeutic drugs as treatment for solid tumors, such as estrogen receptor positive breast cancer. These new targets are very specific for cancer cells, meaning that virtually no healthy cells should be attacked by the treatment, resulting in less side effects. Participants will undergo standard of care treatment, comprising surgical removal of the breast tumor. Part of these tissues will be used for this clinical research.

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
36

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Sep 2024

Geographic Reach
1 country

2 active sites

Status
enrolling by invitation

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 25, 2024

Completed
9 days until next milestone

First Submitted

Initial submission to the registry

October 4, 2024

Completed
4 days until next milestone

First Posted

Study publicly available on registry

October 8, 2024

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

August 29, 2025

Status Verified

August 1, 2025

Enrollment Period

1.3 years

First QC Date

October 4, 2024

Last Update Submit

August 22, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Discovery of new, tumor-specific, glycopeptide epitopes.

    The discovery of new antigens, comprising both glycan and peptide (=glycopeptide), on the outside of the plasma membrane of the breast cancer cells. These antigens should be absent on healthy cells. These new, glycopeptide antigens can be used as target for immunotherapeutics against cancer.

    The patients are only involved during their standard of care surgery (one day). The discovered epitopes will not be shared with enrolled patients.

Study Arms (1)

Standard of care tumor resection

OTHER
Procedure: Tumor resection

Interventions

As the standard of care, estrogen receptor-positive breast tumors are surgically resected. From these resected tumors, small samples of both cancer tissue and healthy surrounding tissue will be analyzed using our patented Tn-Miner workflow to discover novel tumor-specific epitopes.

Standard of care tumor resection

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Female
  • Minimally 18 years old
  • Diagnosed with estrogen-receptor positive breast cancer
  • This must be a primary tumor

You may not qualify if:

  • Male
  • Younger than 18 years old
  • Previous history of other tumors

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

AZ Maria Middelares

Ghent, East-Flanders, 9000, Belgium

Location

University Hospital Ghent

Ghent, East-Flanders, 9000, Belgium

Location

MeSH Terms

Interventions

Transurethral Resection of Bladder

Intervention Hierarchy (Ancestors)

Urologic Surgical ProceduresUrogenital Surgical ProceduresSurgical Procedures, Operative

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
OTHER
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 4, 2024

First Posted

October 8, 2024

Study Start

September 25, 2024

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

August 29, 2025

Record last verified: 2025-08

Locations