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Clinical Trial Summary

This phase I trial studies the effect of SGT-53, carboplatin, and pembrolizumab in treating patients with triple negative inflammatory breast that has spread to other parts of the body (metastatic). SGT-53 is a gene therapy that changes the deoxyribonucleic acid (DNA) of patients' tumor cells to make it easier for the immune system to recognize them. SGT-53 targets the TP53 gene, which is frequently mutated in IBC cells. Chemotherapy drugs, such as carboplatin, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving SGT-53, pembrolizumab, and carboplatin may help the control the disease in patients with triple negative inflammatory breast cancer.


Clinical Trial Description

PRIMARY OBJECTIVES: I. To assess feasibility of transferrin receptor-targeted liposomal p53 cDNA (SGT-53) with carboplatin and pembrolizumab in metastatic triple negative inflammatory breast cancer (IBC) with a Combined Positive Score of >=10 in PD-L1 expression, as measured by rate of successful administration. II. To assess preliminary activity of SGT-53 with carboplatin and pembrolizumab in metastatic triple negative IBC with a Combined Positive Score of >= 10 in PD-L1 expression, as measured by clinical benefit rate (complete response [CR] + partial response [PR] + stable disease [SD] >= 6 months using Response Evaluation Criteria in Solid Tumors [RECIST] criteria version [v] 1.1). SECONDARY OBJECTIVE: I. To assess the safety and tolerability of the combination of SGT-53 with carboplatin and pembrolizumab in patients with metastatic triple negative IBC with a Combined Positive Score of >= 10 in PD-L1 expression, as measured by Common Terminology Criteria for Adverse Events (CTCAE) v 5.0. OUTLINE: Patients receive SGT-53 intravenously (IV) over 90-120 minutes on days 1, 8, and 15, pembrolizumab IV over 30 minutes on day 3, and carboplatin IV over 30-60 minutes on day 3. Treatment repeats every 21 days for up to 35 cycles in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at 28 days, every 3 months for 2 years, and then every 6 months for 5 years from the start of study treatment. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05093387
Study type Interventional
Source Northwestern University
Contact
Status Withdrawn
Phase Phase 1
Start date November 10, 2022
Completion date November 10, 2022

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