Publications by authors named "Bestvina C"

Article Synopsis
  • Dual immune checkpoint blockade (ICB) using CTLA4 and PD-(L)1 inhibitors shows improved anti-tumor effectiveness and immune toxicity compared to PD-(L)1 inhibitors alone in advanced non-small-cell lung cancer (NSCLC) patients.
  • Patients with mutations in STK11 and/or KEAP1 genes benefit more from the combination treatment compared to those receiving only PD-(L)1 inhibitors, as shown in the POSEIDON trial.
  • The loss of KEAP1 serves as a strong predictor for the success of dual ICB, as it leads to a more favorable outcome by changing the tumor's immune environment to better engage CD4 and CD8 T cells for anti-tumor activity. *
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Background: For patients with metastatic non-small cell lung cancer (mNSCLC), next-generation sequencing (NGS) biomarker testing has been associated with a faster time to appropriate targeted therapy and more comprehensive testing relative to polymerase chain reaction (PCR) testing. However, the impact on payer costs and clinical outcomes during patients' treatment journeys has not been fully characterized.

Objective: To assess the costs and clinical outcomes of NGS vs PCR biomarker testing among patients with newly diagnosed de novo mNSCLC from a US payers' perspective.

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Background: Immunotherapy in combination with chemotherapy is first-line treatment for patients with extensive-stage small-cell lung cancer (ES-SCLC). Growing evidence suggests that radiation, specifically stereotactic body radiation therapy (SBRT), may enhance the immunogenic response as well as cytoreduce tumor burden. The primary objective of the study is to determine the progression free survival for patients with newly diagnosed ES-SCLC treated with combination multisite SBRT and chemo-immunotherapy (carboplatin, etoposide, and durvalumab).

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Background: Stereotactic body radiotherapy (SBRT) is safe and effective for treatment of extracranial metastatic disease, but its safety when combined with immune checkpoint inhibitors (ICI) has not yet been comprehensively reported. Here we report adverse events (AEs) associated with combined SBRT and ICI using prospectively-collected data on patients in three trials investigating multi-site SBRT combined with ICI.

Methods: Patients were included from three prospective trials of ICI (pembrolizumab; nivolumab/urelumab or nivolumab/cabiralizumab; nivolumab/ipilimumab) with SBRT to 1-4 sites.

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Introduction: To date, lung cancer is one of the most lethal diagnoses worldwide. A variety of lung cancer treatments and modalities are available, which are generally presented during the patient and doctor consultation. The implementation of decision tools to facilitate patient's decision-making and the management of their healthcare process during medical consultation is fundamental.

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Article Synopsis
  • - The study investigates whether pathologic complete response (pCR) and major pathologic response (MPR) can reliably predict event-free survival (EFS) and overall survival (OS) in neoadjuvant trials for non-small cell lung cancer (NSCLC).
  • - A total of seven clinical trials involving 2385 patients were analyzed, demonstrating a strong correlation between pCR/MPR and 2-year EFS, but weaker associations with OS.
  • - The conclusion suggests that while pCR and MPR are good indicators of EFS, their predictive value for OS is less clear; further research is needed for more accurate data and understanding of patient outcomes.
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Aims: To assess US payers' per-patient cost of testing associated with next-generation sequencing (NGS) versus polymerase chain reaction (PCR) biomarker testing strategies among patients with metastatic non-small cell lung cancer (mNSCLC), including costs of testing, delayed care, and suboptimal treatment initiation.

Methods: A decision tree model considered biomarker testing for genomic alterations using either NGS, sequential PCR testing, or hotspot panel PCR testing. Literature-based model inputs included time-to-test results, costs for testing/medical care, costs of delaying care, costs of immunotherapy [IO]/chemotherapy [CTX] initiation prior to receiving test results, and costs of suboptimal treatment initiation after test results (i.

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Introduction: Targeting the tumor microenvironment may enhance response to immunotherapy (immune checkpoint inhibitors) and improve outcomes for patients. This study tested the safety and efficacy of vorolanib, a novel tyrosine kinase inhibitor of vascular endothelial growth factor, platelet-derived growth factor, and c-KIT, in combination with programmed cell death protein 1 blockade using nivolumab for refractory thoracic malignancies.

Methods: This single-arm multicenter study enrolled patients with extensive-stage SCLC, thymic carcinoma, and NSCLC, either naive or had progressed on previous chemotherapy or immune checkpoint inhibitors (either primary or acquired resistance).

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Purpose: Stereotactic body radiation therapy (SBRT) safely and effectively controls liver metastases (LMs), but its safety and efficacy when combined with immune checkpoint inhibitors (ICIs) are not well characterized. This analysis of 3 phase 1 trials of combination SBRT and ICI evaluates whether LM-SBRT increases the risk for hepatotoxicity when combined with ICI and explores efficacy endpoints.

Methods And Materials: Data were analyzed from 3 phase 1 trials of combination SBRT and ICI for patients with metastatic solid tumors conducted between 2016 and 2020.

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Article Synopsis
  • Current treatment options for RAS-mutant metastatic colorectal cancer have limited effectiveness, prompting a study on the combination of sotorasib (a KRAS-G12C inhibitor) and panitumumab (an EGFR inhibitor) to potentially improve outcomes.
  • This phase 1b substudy, part of the CodeBreaK 101 protocol, involved 48 patients and focused on the safety and efficacy of this drug combination in chemotherapy-refractory cases.
  • Results showed a 30% objective response rate and a median overall survival of 15.2 months, indicating the combination has acceptable safety and promising efficacy in this challenging patient population.*
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Background: Patients with thoracic malignancies who develop COVID-19 infection have a higher hospitalization rate compared to the general population and to those with other cancer types, but how this outcome differs by race and ethnicity is relatively understudied.

Methods: The TERAVOLT database is an international, multi-center repository of cross-sectional and longitudinal data studying the impact of COVID-19 on individuals with thoracic malignancies. Patients from North America with thoracic malignancies and confirmed COVID-19 infection were included for this analysis of racial and ethnic disparities.

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Article Synopsis
  • Numerous recent clinical trials have examined the use of neoadjuvant immune checkpoint inhibitors (ICIs) over the past five years, highlighting the need for clear trial endpoints.
  • Complete pathologic response is a useful indicator for some cancers like breast and bladder cancer, but its relevance in non-small-cell lung cancer (NSCLC) is still being debated.
  • The review discusses different types of endpoints—medical (survival and drug effectiveness) and surgical (surgery-related factors)—as well as exploratory endpoints like circulating tumor DNA clearance to enhance ongoing clinical research.
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Background: Chronic lung disease is a proposed risk factor for immune checkpoint inhibitor pneumonitis (ICI-pneumonitis); however, data is sparse regarding the impact of pre-existing lung disease and baseline chest imaging abnormalities on the risk of developing ICI-pneumonitis.

Methods: We conducted a retrospective cohort study of patients with ICI treatment for cancer from 2015 to 2019. ICI-pneumonitis was determined by the treating physician with corroboration via an independent physician review and exclusion of alternative etiologies.

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Targeted therapies have revolutionized the treatment for many patients with non-small cell lung cancer (NSCLC). Multiple new oral targeted therapies have been approved in the last decade; however, their overall efficacy may be reduced by poor adherence, treatment interruptions, or dose reductions due to adverse events. Most institutions lack standard monitoring protocols for toxicities from these targeted agents.

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Utilizing targeted therapy against activating mutations has opened a new era of treatment paradigms for patients with advanced non-small cell lung cancer (NSCLC). For patients with -mutated cancers, EGFR inhibitors, including the third-generation tyrosine kinase inhibitor (TKI) osimertinib, significantly prolong progression-free survival and overall survival, and are the current standard of care. However, progression after EGFR inhibition invariably occurs, and further study has helped elucidate mechanisms of resistance.

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Article Synopsis
  • A study analyzed 424 patients with KRASG12C-mutant non-small cell lung cancer (NSCLC) and identified key genomic alterations (in KEAP1, SMARCA4, and CDKN2A) that lead to worse outcomes with KRASG12C inhibitors (KRASG12Ci).
  • These alterations allowed researchers to classify patients into different prognostic groups, indicating nearly 50% of those who experienced early disease progression.
  • The research suggests potential pathways not only associated with poor response (like PI3K/AKT/MTOR) but also hints that certain DNA damage response issues might improve KRASG12Ci effectiveness, paving the way for personalized treatment strategies.
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Background: On May 28, 2021, the United States Food and Drug Administration (FDA) granted accelerated approval to sotorasib for second-line or later treatment of patients with locally advanced or metastatic KRAS G12C mutant non-small cell lung cancer (NSCLC). This was the first FDA-approved targeted therapy for this patient population. Due to a paucity of real world data describing clinical outcomes in patients with locally advanced or metastatic KRAS G12C mutated NSCLC in the second-line or later, we sought to compile a large, academic medical center-based historical dataset to clarify clinical outcomes in this patient population.

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Background: Serclutamab talirine (Ser-T, formerly ABBV-321) is an antibody-drug conjugate consisting of an antibody (AM-1-ABT-806) directed against activated epidermal growth factor receptor (EGFR) and a pyrrolobenzodiazepine dimer. We investigated Ser-T monotherapy in a phase I, first-in-human, dose-escalation, and dose-expansion study in patients with advanced solid tumors associated with EGFR overexpression.

Methods: Eligible patients (≥18 years) had advanced, histologically confirmed solid tumors associated with EGFR overexpression (centralized testing).

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Purpose: Molecular factors predicting relapse in early-stage non-small-cell lung cancer (ES-NSCLC) are poorly understood, especially in inoperable patients receiving radiotherapy (RT). In this study, we compared the genomic profiles of inoperable and operable ES-NSCLC.

Materials And Methods: This retrospective study included 53 patients with nonsquamous ES-NSCLC (stage I-II) treated at a single institution (University of Chicago) with surgery (ie, operable; n = 30) or RT (ie, inoperable; n = 23) who underwent tumor genomic profiling.

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Article Synopsis
  • A randomized phase I clinical trial in non-small cell lung cancer (NSCLC) reveals that concurrent treatment with radiotherapy and ICB is more effective than sequential treatment, especially in patients with immunologically cold, highly aneuploid tumors.
  • The study suggests that instead of enhancing the immune response, radiotherapy alone actually reduces certain immune signatures, and proposes using tumor aneuploidy as a biomarker for personalizing NSCLC treatment.
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