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About
This phase I trial tests the safety, side effects, and best dose of carfilzomib in combination with sotorasib in treating patients with KRAS G12C-mutated non-small cell lung cancer (NSCLC) that may have spread from where it first started to nearby tissue, lymph nodes, or distant parts of the body (advanced) or that has spread from where it first started (primary site) to other places in the body (metastatic). Carfilzomib is a drug that binds to and inhibits the activity of the protein complex that is responsible for degrading other damaged or unneeded proteins. The inhibition of this protein by carfilzomib can then cause tumor growth inhibition and cell death. Sotorasib is a drug that binds to and inhibits the activity of the KRAS G12C mutant. This may inhibit growth in KRAS G12C-expressing tumor cells. Combining carfilzomib and sotorasib may be a safe and effective treatment option for patients with KRAS G12C-mutated advanced or metastatic NSCLC.
Full description
PRIMARY OBJECTIVES:
I. Determine the maximum tolerated dose (MTD) and the recommended phase II dose (RP2D) of the combination of carfilzomib and sotorasib in KRAS G12C mutated NSCLC following progression on KRAS inhibitor.
II. Describe the safety of the combination of carfilzomib and sotorasib in KRAS G12C mutated NSCLC following progression on KRAS inhibitor.
SECONDARY OBJECTIVES:
I. Describe clinical responses at all dose levels, including the recommended dose level using Response Evaluation Criteria in Solid Tumors (RECIST) version (v)1.1.
II. Describe other efficacy endpoints, including progression-free survival (PFS), duration of response (DOR), and overall survival (OS) at the recommended dose level.
EXPLORATORY OBJECTIVES:
I. Evaluate the pharmacokinetics of the combination of carfilzomib and sotorasib.
II. Explore biomarkers of response and resistance through tumor biopsies and circulating tumor deoxyribonucleic acid (ctDNA).
OUTLINE: This is a dose-escalation study of carfilzomib in combination with (fixed-dose) sotorasib.
Patients receive carfilzomib intravenously (IV) over 30 minutes on days 1, 2, 8, 9, 15, and 16 of each cycle and sotorasib orally (PO) once daily (QD) on days 1-28 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients also undergo echocardiography (ECHO) at screening and undergo computed tomography (CT) or magnetic resonance imaging (MRI) and collection of blood samples at screening and on study. Patients may undergo optional biopsies on study.
After completion of study treatment, patients are followed up at 30 days.
Enrollment
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Inclusion criteria
Documented informed consent of the participant and/or legally authorized representative
Age: ≥ 18 years
Eastern Cooperative Oncology Group (ECOG) ≤ 2
Histologically confirmed NSCLC that is metastatic or advanced. The tumor must exhibit evidence of KRASG12C mutation which is determined by either a Clinical Laboratory Improvement Act (CLIA) certified ctDNA assay or by a CLIA certified tumor tissue assay
Measurable disease by RECIST v1.1
Failed prior KRAS inhibitor
Fully recovered from the acute toxic effects (except alopecia) from prior anti-cancer therapy
Patients with known history or current symptoms of cardiac disease, or history of treatment with cardiotoxic agents, should have a clinical risk assessment of cardiac function using the New York Heart Association Functional Classification. To be eligible for this trial, patients should be class 2B or better
Patients with new or progressive brain metastases (active brain metastases) or leptomeningeal disease are eligible if the treating physician determines that immediate central nervous system (CNS) specific treatment is not required and is unlikely to be required during the first cycle of therapy
Absolute neutrophil count (ANC) ≥ 1,500/mm^3 (performed within 14 days prior to day 1 of protocol therapy)
Hemoglobin (Hb) ≥ 9 g/dL (performed within 14 days prior to day 1 of protocol therapy)
Platelets ≥ 100,000/mm^3 (performed within 14 days prior to day 1 of protocol therapy)
Total bilirubin ≤ 1.5 x upper limit of normal (ULN) (unless has Gilbert's disease) (performed within 14 days prior to day 1 of protocol therapy)
Aspartate aminotransferase (AST) ≤ 3 x ULN (or ≤ 5 x ULN in the setting of liver metastatic disease) (performed within 14 days prior to day 1 of protocol therapy)
Alanine aminotransferase (ALT) ≤ 5 x ULN (or ≤ 5 x ULN in the setting of liver metastatic disease) (performed within 14 days prior to day 1 of protocol therapy)
Creatinine clearance of ≤ 1.5 x ULN or glomerular filtration rate (GFR) ≥ 60 mL/min/1.73 m^2 (performed within 14 days prior to day 1 of protocol therapy)
Women of childbearing potential (WOCBP): negative urine or serum pregnancy test (performed within 14 days prior to day 1 of protocol therapy)
Agreement by females and males of childbearing potential to use an effective method of birth control or abstain from heterosexual activity for the course of the study through at least 120 days after the last dose of protocol therapy.
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15 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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