This phase II Expanded Lung-MAP treatment trial compares how well sacituzumab govitecan alone, ivonescimab alone, or sacituzumab govitecan in combination with ivonescimab works in treating patients with non-small cell lung cancer (NSCLC) that has come back after a period of improvement (recurrent) or is stage IV and has a change in at least 1 of these genes: ALK, EGFR, HER2 (ERBB2), MET, NTRK, RET, and ROS1. This type of gene change is called an actionable genomic alteration (AGA), which means certain treatments can target the change to fight the cancer. Sacituzumab govitecan is a monoclonal antibody, called sacituzumab, linked to a toxic drug called SN-38. Sacituzumab govitecan is a form of targeted therapy because it attaches to specific molecules (receptors) on the surface of tumor cells, known as TROP2 receptors, and delivers SN-38 to kill them. Ivonescimab is a bispecific antibody that can bind to two different antigens at the same time. It binds to programmed cell death protein 1 (PD1), a protein found on the surface of T cells (a type of white blood cell) and vascular endothelial growth factor (VEGF), a protein found on the surface of tumor cells. Ivonescimab may strengthen the immune system and interfere with the ability of tumor cells to grow and spread. Giving a combination of sacituzumab govitecan and ivonescimab work better than either drug alone, and sacituzumab govitecan alone, ivonescimab alone, or sacituzumab govitecan and ivonescimab together may work better than standard treatments at shrinking NSCLC with an AGA.
Participants must have been assigned to S1900N by the Southwest Oncology Group (SWOG) Statistics and Data Management Center (SDMC). Assignment to S1900N is determined by submission of documentation of NSCLC harboring an actionable genomic alteration (AGA) in the LUNGMAP protocol. AGA is defined in this protocol as an activating driver alteration with an approved targeted therapy for lung cancer in one of the following genes: ALK, EGFR, HER2 (ERBB2), MET, NTRK, RET, and ROS1.
Participants must have measurable disease documented by CT or MRI. The CT from a combined positron emission tomography (PET)/CT may be used to document only non-measurable disease unless it is of diagnostic quality. Measurable disease must be assessed within 28 days prior to randomization. Pleural effusions, ascites and laboratory parameters are not acceptable as the only evidence of disease. Non-measurable disease must be assessed within 42 days prior to randomization. All disease must be assessed and documented on the Baseline Tumor Assessment Form. Participants whose only measurable disease is within a previous radiation therapy port must demonstrate clearly progressive disease (in the opinion of the treating investigator) prior to randomization.
Participants must have a CT or MRI scan of the brain to evaluate for CNS disease within 42 days prior to randomization.
Participants with spinal cord compression or brain metastases must not have residual neurological dysfunction, unless no further recovery is expected, and the participant has been stable on weaning doses of corticosteroids (≤ 10 mg daily prednisone or equivalent) prior to randomization. Participants with spinal cord compression or brain metastases that require local treatment must have received local treatment to these metastases and remained clinically controlled and asymptomatic for at least 7 days following stereotactic radiation and/or 14 days following whole brain radiation, and prior to randomization.
None
Parallel
Biospecimen Collection
Procedure/SurgeryUndergo collection of blood samples
Computed Tomography
Procedure/SurgeryUndergo CT
Ivonescimab
Biological/VaccineGiven IV
Magnetic Resonance Imaging
Procedure/SurgeryUndergo MRI
Sacituzumab Govitecan
Biological/VaccineGiven IV
Progression-free survival (PFS) (Comparison between arms)
Will compare between participants randomized to the combination of sacituzumab govitecan plus ivonescimab (SG-I) and sacituzumab govitecan (SG) alone. The comparison of PFS will be done using a 1-sided 10% level log-rank test stratified by randomization stratification factors. Binary proportions along with 90% confidence intervals will be estimated for response to be consistent with 1-sided 5% level testing. With 35 participants per arm, binary proportions can be estimated to within 11% with 90% confidence. The distribution PFS will be estimated using the method of Kaplan-Meier. Comparisons of event time distributions between arms will be summarized by hazard ratios and 80% confidence intervals (consistent with 1-sided 10% level testing) from a Cox Proportional hazards model including the stratification factors.
PFS (Comparison between arms)
Will between participants randomized to SG-I and ivonescimab (I) alone. The comparison of PFS will be done using a 1-sided 10% level log-rank test stratified by randomization stratification factors. Binary proportions along with 90% confidence intervals will be estimated for response to be consistent with 1-sided 5% level testing. With 35 participants per arm, binary proportions can be estimated to within 11% with 90% confidence. The distribution PFS will be estimated using the method of Kaplan-Meier. Comparisons of event time distributions between arms will be summarized by hazard ratios and 80% confidence intervals (consistent with 1-sided 10% level testing) from a Cox Proportional hazards model including the stratification factors.
Response rate of SG against historical response rates (Single arm evaluation)
Within each treatment arm, the objective is to evaluate if response rates show activity beyond standard of care, which generally would be single agent chemotherapy or docetaxel combined with ramucirumab. With 35 eligible and evaluable participants per arm, the evaluation has 90% exact power to rule out a 10% response rate using a 1-sided 5% level test (the exact level is 5.1% based on design assumptions), if the true response rate were at least 29%. The observation of at least 7 participants with a response (a 20% response rate) would be considered evidence to rule out a 10% response rate.
Response rate of I against historical response rates (Single arm evaluation)
Within each treatment arm, the objective is to evaluate if response rates show activity beyond standard of care, which generally would be single agent chemotherapy or docetaxel combined with ramucirumab. With 35 eligible and evaluable participants per arm, the evaluation has 90% exact power to rule out a 10% response rate using a 1-sided 5% level test (the exact level is 5.1% based on design assumptions), if the true response rate were at least 29%. The observation of at least 7 participants with a response (a 20% response rate) would be considered evidence to rule out a 10% response rate.
Rate of dose-limiting toxicities among participants treated with SG-I in the safety run-in analysis population
Defined as treatment-related Grade 3 or higher non hematologic toxicity, treatment-related Grade 4 or higher hematologic toxicity, or any Grade of treatment-related toxicity that leads to drug discontinuation. Toxicities will be graded based on Common Terminology Criteria for Adverse Events (CTCAE).
Response rates
Will compare response rates between I with or without SG.
Response rates
Will compare response rates between SG with or without I.
Overall survival (OS)
Will compare between the SG-I and SG arms. The distribution of OS will be estimated using the method of Kaplan-Meier. Comparisons of event time distributions between arms will be summarized by hazard ratios and 80% confidence intervals (consistent with 1-sided 10% level testing) from a Cox Proportional hazards model including the stratification factors.
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SWOG Cancer Research Network
Lead sponsor
National Cancer Institute (NCI)
Collaborator
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