Publications by authors named "Sumit A Shah"

Introduction: Vaginal cancer is a rare yet aggressive cancer, with unmet need for novel therapeutics.

Case Presentation: In this case report, we present a patient with advanced stage, HPV-positive vaginal cancer who demonstrated clinical, radiological, and molecular response to combination treatment of antibody-drug conjugate enfortumab vedotin (EV) with pembrolizumab.

Conclusion: This is the first reported response to this combination therapy in vaginal cancer in the literature.

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Purpose: Patients with cancer face increasing difficulty securing access to timely, quality oncologic care. A virtual consultation program at a tertiary academic center could eliminate physical barriers while providing treatment recommendations that could be executed locally.

Methods: We evaluated an to increase access to expert care via a cloud-based platform through Included Health.

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Enfortumab vedotin (EV) is used as monotherapy or combined with pembrolizumab in advanced urothelial carcinoma (aUC), but biomarker data associated with EV outcomes are limited. We identified 170 patients in the UNITE study who received EV monotherapy and had molecular biomarker data available. Outcomes for groups with and without a particular biomarker were compared using logistic regression (unadjusted) for the objective response rate (ORR), and a log-rank test and Cox proportional-hazard models (CPHMs) for progression-free survival (PFS) and overall survival (OS) from EV initiation.

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  • A study examined outcomes of cancer patients who got COVID-19, focusing on those with and without existing cardiovascular disease (CVD) or risk factors (CVRF).
  • The research found that over half of the 10,876 patients had CVD/CVRF, which linked to more severe COVID-19 symptoms and complications.
  • Notably, patients without recent cancer treatment experienced worse COVID-19 severity related to CVD/CVRF compared to those under active treatment.
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Introduction: COVID-19 particularly impacted patients with co-morbid conditions, including cancer. Patients with melanoma have not been specifically studied in large numbers. Here, we sought to identify factors that associated with COVID-19 severity among patients with melanoma, particularly assessing outcomes of patients on active targeted or immune therapy.

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Background: Renal cell carcinoma (RCC) subtypes differ in molecular characteristics and prognosis. We investigated the associations of RCC subtype with patient demographics, comorbidity, and neighborhood socioeconomic status (nSES).

Methods: Using linked California Cancer Registry and Office of Statewide Health Planning and Development data, we identified history of hypertension, diabetes, and kidney disease prior to RCC diagnosis in Asian/Pacific Islander, non-Latino Black, Latino, and non-Latino White adults diagnosed with their first pathologically confirmed RCC from 2005 through 2015.

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  • Cytokine storms caused by COVID-19 can lead to severe health issues, particularly in cancer patients undergoing immunotherapy due to heightened immune responses.
  • A study involving over 12,000 cancer patients aimed to explore how baseline immunosuppression and immunotherapy affect the severity of COVID-19 and the likelihood of cytokine storms.
  • Results indicated no significant differences in COVID-19 severity or cytokine storm occurrence among patients receiving immunotherapy compared to those not receiving any cancer treatment prior to their COVID-19 diagnosis.
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  • * Data from the COVID-19 and Cancer Consortium indicates that those treated for B-lymphoid malignancies within the past year have a greater severity of COVID-19 compared to those who were not recently treated.
  • * The study highlights the need for tailored strategies to protect this vulnerable group of patients, as recent treatment appears to be a key factor in increased COVID-19 risk.
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  • The study investigates the frequency and outcomes of coinfections in cancer patients who also have COVID-19, a group at high risk for such infections.
  • Among 8,765 patients analyzed, 16.6% developed coinfections, predominantly bacterial, with specific risk factors identified such as age, sex, and existing health conditions.
  • Co-occurrence of bacterial and fungal infections significantly increased the 30-day mortality rates, highlighting the severe impact of these coinfections in this vulnerable population.
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  • The COVID-19 pandemic has affected cancer patients differently across various regions in the U.S., showing that these patients are at a higher risk for severe COVID-19 complications.
  • This study tracked and analyzed COVID-19 outcomes among cancer patients diagnosed between March and November 2020 across different U.S. census divisions, focusing on factors that may influence their health outcomes.
  • Results indicated significant variability in 30-day mortality rates among cancer patients in different centers, ranging from 5.2% to 26.6%, suggesting that geographic location and healthcare center characteristics play a crucial role in these outcomes.
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  • - This study analyzes the efficacy of enfortumab vedotin (EV) for treating advanced urothelial cancer (aUC) in patients not previously well represented in clinical trials, focusing on real-world experiences from a retrospective study called UNITE.
  • - The results from 304 patients indicated a 52% overall response rate to EV monotherapy, with similar responses in various patient subsets, including those with significant comorbidities that were often excluded from clinical trials.
  • - Overall survival was about 14.4 months, showing that EV can be effective even for patients with variant histology or specific genetic alterations, aligning with earlier clinical trial findings.
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Background: Patient reported outcomes (PROs) have been associated with improved symptom management and quality of life in patients with cancer. However, the implementation of PROs in an academic clinical practice has not been thoroughly described. Here we report on the execution, feasibility and healthcare utilization outcomes of an electronic PRO (ePRO) application for cancer patients at an academic medical center.

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Background: Though testicular cancer is the most common cancer in young men, there is a paucity of epidemiologic studies examining sociodemographic disparities in adjuvant therapy and outcomes. We examined the associations of sociodemographic factors with retroperitoneal lymph node dissection (RPLND) and survival among patients with nonseminomatous germ cell tumors (NSGCTs).

Methods: Within the Surveillance Epidemiology and End Results database (2005-2015), we identified 8,573 patients with nonseminomatous germ cell tumors.

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Purpose: The response to the COVID-19 pandemic has affected the management of patients with cancer. In this pooled retrospective analysis, we describe changes in management patterns for patients with cancer diagnosed with COVID-19 in two academic institutions in the San Francisco Bay Area.

Materials And Methods: Adult and pediatric patients diagnosed with COVID-19 with a current or historical diagnosis of malignancy were identified from the electronic medical record at the University of California, San Francisco, and Stanford University.

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Cancer patients frequently develop tumor and treatment-related complications, leading to diminished quality of life, shortened survival, and overutilization of emergency department and hospital services. Outpatient oncology treatment has potential to leave cancer patients unmonitored for long periods while at risk of clinical deterioration which has been exaggerated during the COVID19 pandemic. Visits to cancer clinics and hospitals risk exposing immunocompromised patients to infectious complications.

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  • * Hydroxychloroquine combined with other drugs increased mortality compared to alternative treatments or no treatment, while remdesivir showed a trend towards reduced mortality that wasn't statistically significant.
  • * Treatment receipt was influenced by factors like baseline COVID-19 severity and revealed disparities, such as Black patients being less likely to receive remdesivir than white patients, emphasizing the need for more inclusive trials.
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Background: Data on patients with COVID-19 who have cancer are lacking. Here we characterise the outcomes of a cohort of patients with cancer and COVID-19 and identify potential prognostic factors for mortality and severe illness.

Methods: In this cohort study, we collected de-identified data on patients with active or previous malignancy, aged 18 years and older, with confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection from the USA, Canada, and Spain from the COVID-19 and Cancer Consortium (CCC19) database for whom baseline data were added between March 17 and April 16, 2020.

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Purpose: Hispanic men in the USA experience the second-highest incidence rate of testicular germ cell tumors (TGCTs), behind non-Hispanic (NH) White men, and have experienced steep increases in TGCT in recent decades. It is unknown whether increases in incidence differ according to neighborhood sociodemographic factors.

Methods: We conducted a population-based study of n = 3759 Hispanic and n = 8469 NH White men (n = 12,228 total) diagnosed with TGCT in California during the three most recent pericensal periods.

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Background: Cabozantinib is approved for patients with metastatic renal cell carcinoma on the basis of studies done in clear-cell histology. The activity of cabozantinib in patients with non-clear-cell renal cell carcinoma is poorly characterised. We sought to analyse the antitumour activity and toxicity of cabozantinib in advanced non-clear-cell renal cell carcinoma.

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Purpose: To evaluate the safety, pharmacokinetics, and pharmacodynamics of Hu5F9-G4 (5F9), a humanized IgG4 antibody that targets CD47 to enable phagocytosis.

Patients And Methods: Adult patients with solid tumors were treated in four cohorts: part A, to determine a priming dose; part B, to determine a weekly maintenance dose; part C, to study a loading dose in week 2; and a tumor biopsy cohort.

Results: Sixty-two patients were treated: 11 in part A, 14 in B, 22 in C, and 15 in the biopsy cohort.

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The NCCN Clinical Practice Guidelines in Oncology recommend definitive therapy for all men with high-risk localized prostate cancer (PCa) who have a life expectancy >5 years or who are symptomatic. However, the application of these guidelines may vary among ethnic groups. We compared receipt of guideline-concordant treatment between Latino and non-Latino white men in California.

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