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Testing the Addition of an Anti-cancer Drug, Entinostat, to the Usual Chemotherapy and Immunotherapy Treatment (Atezolizumab, Carboplatin and Etoposide) for Previously Untreated Aggressive Lung Cancer That Has Spread

Malignant Solid Neoplasm Clinical Trial

Official title:
A Phase 1 Study of Entinostat in Combination With Atezolizumab / Carboplatin / Etoposide in Previously Untreated Extensive-Stage Small Cell Lung Cancer

Clinical Trial Summary

This phase I trial seeks to find out the best dose, possible benefits and/or side effects of entinostat in combination with atezolizumab, carboplatin and etoposide for the treatment of previously untreated aggressive lung cancer that has spread (extensive-stage small cell lung cancer). Entinostat and etoposide may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Immunotherapy with monoclonal antibodies, such as atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Carboplatin is a chemotherapy drug that attaches to deoxyribonucleic acid (DNA) and may kill tumor cells. Giving entinostat in combination with atezolizumab, carboplatin and etoposide may work better than atezolizumab, carboplatin and etoposide alone.

Clinical Trial Description

PRIMARY OBJECTIVES: I. To determine the maximum tolerated dose (MTD) of entinostat in combination with carboplatin, etoposide, and atezolizumab. II. To determine safety and tolerability of adding entinostat to carboplatin / etoposide / atezolizumab for extensive-stage small cell lung cancer (ES-SCLC). III. To determine the feasibility of administering entinostat concomitantly with atezolizumab, carboplatin, and etoposide as determined by the proportion of patients who receive 3 or more cycles of the combination. SECONDARY OBJECTIVES: I. To observe and record anti-tumor activity. II. To determine the proportion of patients who are alive and without disease progression at 9 months (9 month progression free survival [PFS]) after starting entinostat, carboplatin, etoposide, and atezolizumab. EXPLORATORY OBJECTIVES: I. To estimate the clinical activity of entinostat plus carboplatin/etoposide/atezolizumab as determined by response rate (RR), progression free survival (PFS), and overall survival (OS). II. To explore the prevalence of cyclic adenosine monophosphate (cAMP) response element binding protein (CREB) binding protein (CREBBP)/ histone acetyltransferase p300 (EP300) mutations in newly diagnosed ES-SCLC population. III. To explore the relationship between CREBBP/EP300 mutations and clinical outcomes. IV. To explore immune biomarkers that may predict response to atezolizumab and entinostat and changes in these biomarkers over the course of study treatment. V. To explore entinostat exposure-response relationships with toxicity and clinical outcomes (PFS and OS). VI. To evaluate baseline atezolizumab clearance as an early biomarker for OS and to assess the relationship between atezolizumab time-varying clearance, cachexia and clinical outcomes (PFS and OS). OUTLINE: This is a dose-escalation study of entinostat. INDUCTION THERAPY: Patients receive carboplatin intravenously (IV) over 30-60 minutes on day 1, etoposide IV over 60 minutes on days 1-3, atezolizumab IV over 30-60 minutes on day 1, and entinostat orally (PO) on days 1, 8, and 15. Treatment repeats every 21 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity. MAINTENANCE THERAPY: Patients receive atezolizumab IV over 30 minutes on day 1 and entinostat PO on days 1, 8, and 15. Treatment repeats every 21 days for up to 13 cycles in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at 30 days, every 3 months for 2 years, then every 6 months for 3 years. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04631029
Study type Interventional
Source National Cancer Institute (NCI)
Contact
Status Completed
Phase Phase 1
Start date April 27, 2021
Completion date July 11, 2023
View Details
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