Victor Cohen

Victor Cohen


Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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20 October 2021 in Current Oncology
Verified
Journal Article
Open access
PDF file
GKGoulnar Kasymjanova
Goulnar Kasymjanova
AAAksa Anwar
Aksa Anwar
Victor CohenVictor Cohen
Victor Cohen
KSKhalil Sultanem
Khalil Sultanem
CPCarmela Pepe
Carmela Pepe
Jason AgulnikJason Agulnik
Jason Agulnik
The large burden of COVID-19 on health care systems worldwide has raised concerns among medical oncologists about the impact of COVID-19 on the diagnosis and treatment of lung cancer patients. In this retrospective cohort study, we investigated the impact of COVID-19 on lung cancer diagnosis and treatment before and during the COVID-19 era. New lung cancer diagnoses decreased by 34.7% during the pandemic with slightly more advanced stages of disease, there was a significant increase in the utilization of radiosurgery as the first definitive treatment, and a decrease in both systemic treatment as well as surgery compared to the pre-COVID-19 era. There was no significant delay in starting chemotherapy and radiation treatment during the pandemic compared to pre-COVID-19 time. However, we observed a delay to lung cancer surgery during the pandemic time. COVID-19 seems to have had a major impact at our lung cancer center on the diagnoses and treatment patterns of lung cancer patients. Many oncologists fear that they will see an increase in newly diagnosed lung cancer patients in the coming year. This study is still ongoing and further data will be collected and analyzed to better understand the total impact of the COVID-19 pandemic on our lung cancer patient population.

21 July 2014 in Frontiers in Oncology
Verified
Journal Article
Open access
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KEKhashayar Esfahani
Khashayar Esfahani
JAJason Scott Agulnik
Jason Scott Agulnik
Victor CohenVictor Cohen
Victor Cohen
The identification of oncogenic driver driver mutations in non-small cell lung cancer has led to a paradigm shift and the development of specific molecular treatments. Tumors harboring a rearranged EML4-ALK fusion oncogene are highly sensitive to therapy with ALK-targeted inhibitors. Crizotinib is the first approved treatment for advanced lung tumors containing this genetic abnormality. In this mini review, we discuss the existing data on crizotinib as well as ongoing trials involving this medication. A brief overview of the known resistance mechanisms to criztotinib will also be presented followed by a summary of the ongoing trials involving next-generation ALK inhibitors or other targeted therapies in patients with ALK+ NSCLC.

1 March 2016 in Lung Cancer: Targets and Therapy
Verified
Journal Article
Open access
PDF file
Victor CohenVictor Cohen
Victor Cohen
KEKhashayar Esfahani
Khashayar Esfahani
Lung cancer remains the most lethal cancer, with over 160,000 annual deaths in the USA alone. Over the past decade, the discovery of driver mutations has changed the landscape for the treatment of non-small-cell lung cancer (NSCLC). Targeted therapies against epidermal growth factor receptor (EGFR) or anaplastic lymphoma kinase (ALK) have now been approved by the Food and Drug Administration as part of the standard first-line treatment of NSCLC. Despite good initial responses, most patients develop resistance within 8–12 months and have disease progression.

20 November 2024 in Current Oncology
Verified
Journal Article
Open access
PDF file
SCSara Friday Cohen
Sara Friday Cohen
DCDiane Cruiziat
Diane Cruiziat
JNJeremy Naimer
Jeremy Naimer
Victor CohenVictor Cohen
Victor Cohen
GKGoulnar Kasymjanova
Goulnar Kasymjanova
Jason AgulnikJason Agulnik
Jason Agulnik
Background: Immunotherapy with ICIs has revolutionized the treatment for NSCLC. The impact of sex on treatment outcomes remains unclear. The aim of this study was to evaluate sex-related differences in immunotherapy outcomes in a real-world population of NSCLC patients. Methods: Demographics, clinical, pathological characteristics, and treatment-related variables were analyzed to understand the differences in efficacy and safety outcomes in relation to sex. Results: 174 advanced NSCLC patients receiving first-line ICIs, either alone or in conjunction with chemotherapy, were included. No differences based on gender were observed in PFS and OS. Prognostic factors for OS and PFS included liver metastases and CRP levels at treatment discontinuation (TD). IrAE-related TD occurred at a significantly higher rate in females. GI toxicity, including hepatitis and colitis, was predominantly observed in females, whereas pneumonitis was the most frequent irAE leading to TD in males. Conclusions: Despite no significant differences based on gender being observed in survival outcomes, our study showed that female patients with advanced NSCLC receiving ICIs are at a substantially greater risk of severe symptomatic irAEs and TD. This finding indicates that broad-based sex differences could potentially exist and emphasizes the need for further investigations into the role played by gender in immunity and cancer immunotherapy treatment.

14 November 2022 in Current Oncology
Verified
Journal Article
Open access
PDF file
GKGoulnar Kasymjanova
Goulnar Kasymjanova
ARAngelo Rizzolo
Angelo Rizzolo
CPCarmela Pepe
Carmela Pepe
JFJennifer Jennifer Friedmann
Jennifer Jennifer Friedmann
DSDavid Small
David Small
Jason AgulnikJason Agulnik
Jason Agulnik
Background: We have recently reported a 35% drop in new lung cancer diagnoses and a 64% drop in lung cancer surgeries during the first year of the pandemic. Methods: The target population was divided into three cohorts: pre-COVID-19 (2019), first year of COVID-19 (2020), and second year of COVID-19 (2021). Results: The number of new lung cancer diagnoses during the second year of the pandemic increased by 75%, with more than 50% being in the advanced/metastatic stage. There was a significant increase in cases with multiple extrathoracic sites of metastases during the pandemic. During the first year of the pandemic, significantly more patients were treated with radiosurgery compared to the pre-COVID-19 year. During the second year, the number of radiosurgery and surgical cases returned to pre-COVID-19 levels. No significant changes were observed in systemic chemotherapy and targeted therapy. No statistical difference was identified in the mean wait time for diagnosis and treatment during the three years of observation. However, the wait time for surgery was prolonged compared to the pre-COVID-19 cohort. Conclusions: The significant drop in new diagnoses of lung cancer during the first year of the pandemic was followed by an almost two-fold increase in the second year, with the increased rate of metastatic disease with multiple extra-thoracic site metastases. Limited access to surgery resulted in the more frequent use of radiosurgery.