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Study of the Bria-IMT Regimen and CPI vs Physicians' Choice in Advanced Metastatic Breast Cancer.

NCT06072612 · Status: RECRUITING · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 404

Last updated 2026-04-07

No results posted yet for this study

Summary

This is a multicenter randomized, open label study to evaluate overall survival with the Bria-IMT regimen in combination with Checkpoint Inhibitor \[Retifanlimab\], versus Treatment of Patients'/Physicians' Choice (TPC) in advanced metastatic or locally recurrent breast cancer (aMBC) patients with no approved alternative therapies available.

Conditions

Interventions

BIOLOGICAL

SV-BR-1-GM

SV-BR-1-GM is an experimental, allogeneic, whole cell breast tumor cell line stably transfected with the CSF2 gene (encoding GM-CSF) to secrete GM-CSF in vivo to consequently augment dendritic cell activity

DRUG

Cyclophosphamide

Cyclophosphamide is an alkylating agent with indications for treatment of malignant diseases including breast cancer. Cyclophosphamide (Cytoxan) 300 mg/m2 I.V., single dose, will be given to patients assigned to the SV-BR-1-GM. Cyclophosphamide will be administered 2-3 days prior to SV-BR-1-GM inoculations.

DRUG

Interferon infiltration of the inoculation site

Interferon is a cytokine released by cells to regulate immune responses to viral infections. For this study, 0.1 mcg Pegasys per injection site (x 4 injection sites) will be administered.

DRUG

Retifanlimab

Retifanlimab is a checkpoint inhibitor. A total dose of 375mg will be administered at first cycle on or about day +2 (+/-1d). In all other cycles, Retifanlimab is permitted to be administered between Day -2/-3 to Day 2±1 of the cycle based on the convenience of the patients and the clinical sites. However once the timing of the CPI is chosen for C1, it must be given on the same day thereafter throughout the trial.

DRUG

Treatment of Physician's Choice

Patients in the TPC arm of the study will be treated with one or a combination of the following: carboplatin, taxanes, capecitabine, gemcitabine, vinorelbine or eribulin in accordance with the investigators and institutional standard of care. For HER2+ patients, a HER2-targeted agent of the physician's choice can be part of TPC.

Sponsors & Collaborators

  • BriaCell Therapeutics Corporation

    lead INDUSTRY

Principal Investigators

  • Giuseppe Del Priore, MD MPH · BriaCell Therapeutics

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-12-05
Primary Completion
2027-12-31
Completion
2028-06-30
FDA Drug
Yes

Countries

  • United States

Study Locations

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Entities

Drugs
Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06072612 on ClinicalTrials.gov