Geographic disparities in access to immunotherapy clinical trials for metastatic melanoma.

Survival outcomes for metastatic melanoma have drastically improved with the advent of immunotherapy. Access to ongoing immunotherapy clinical trials has become increasingly important to patients with advanced disease. We sought to quantify geographic disparities in access to these trials by U.S. division, region, urban/rural status, and median income. We searched ClinicalTrials.gov for interventional immunotherapy trials for metastatic melanoma from 2015 to 2021 and identified U.S. zip codes for each participating trial site. ArcGIS was used to calculate the one-way driving time from each zip code to the nearest treatment center. Melanoma burden in each zip code outside a 60 min driving radius was calculated by multiplying population by the corresponding state's cancer-specific mortality rate. χ2 tests were used to test for significance between census regions, divisions, and urban vs. rural zip codes, while logistic regression was used to quantify risk of poor access with median income. Across 148 trials, 4844 treatment centers were located in 1102 unique zip codes. 9010 zip codes were located greater than one-hour driving time from the nearest clinical trial. Southern regions were most likely to have poor access of all regions (p < 0.001), and rural status also significantly correlated with poor access (p < 0.001). For every $10,000 increase in median income, the likelihood of a zip code being within 60 min from a trial increased by 1.315. While immunotherapy continue to improve survival outcomes for metastatic melanoma, geographic access to clinical trials investigating these therapies remains a challenge for a significant proportion of the U.S. population.

Cosmetic dermatologic surgery fellowship websites and social media presence: Opportunities for improved applicant recruitment.

INTRODUCTION: The American Society for Dermatologic Surgery (ASDS) established a cosmetic dermatologic surgery fellowship in 2013. Programs often outline details of fellowships on their websites to help prospective applicants make informed decisions. Our primary goal was to evaluate the content quality of online information for all ASDS-accredited cosmetic dermatologic surgery fellowships on program websites and the ASDS website. Our secondary goal was to describe program activity on social media platforms as another avenue for applicant recruitment. METHODS: Program websites were assessed using an aggregate score from twenty-one standardized content quality variables. Social media activity on Facebook and Instagram from January 6 2021, to March 6, 2021, was categorized. RESULTS: Among 24 cosmetic dermatologic surgery fellowship programs, 23 had websites. Basic information was provided across most websites or the ASDS website (eg, address, 95.8%), but more qualitative variables like research opportunities or didactic schedule were not consistently reported. Most programs had highly active social media accounts (91.7% on Facebook and 79.2% on Instagram). CONCLUSION: There is a gap of information availability between the ASDS website and individual cosmetic dermatologic surgery fellowship websites. Increasing information availability may enhance the applicant recruitment process and serve as a low-cost intervention to ensure optimal fit.

Oncolytic Virotherapy for Melanoma Brain Metastases, a Potential New Treatment Paradigm?

INTRODUCTION: Melanoma brain metastases remain a devastating disease process with poor prognosis. Recently, there has been a surge in studies demonstrating the efficacy of oncolytic virotherapy for brain tumor treatment. Given their specificity and amenability to genetic modification, the authors explore the possible role of oncolytic virotherapy as a potential treatment option for patients with melanoma brain metastases. METHODS: A comprehensive literature review including both preclinical and clinical evidence of oncolytic virotherapy for the treatment of melanoma brain metastasis was performed. RESULTS: Oncolytic virotherapy, specifically T-VEC (Imlygic™), was approved for the treatment of melanoma in 2015. Recent clinical trials demonstrate promising anti-tumor changes in patients who have received T-VEC; however, there is little evidence for its use in metastatic brain disease based on the existing literature. To date, only two single cases utilizing virotherapy in patients with metastatic brain melanoma have been reported, specifically in patients with treatment refractory disease. Currently, there is not sufficient data to support the use of T-VEC or other viruses for intracranial metastatic melanoma. In developing a virotherapy treatment paradigm for melanoma brain metastases, several factors must be considered, including route of administration, need to bypass the blood-brain barrier, viral tumor infectivity, and risk of adverse events. CONCLUSIONS: Evidence for oncolytic virotherapy treatment of melanoma is limited primarily to T-VEC, with a noticeable paucity of data in the literature with respect to brain tumor metastasis. Given the promising findings of virotherapy for other brain tumor types, oncolytic virotherapy has great potential to offer benefits to patients afflicted with melanoma brain metastases and warrants further investigation.

Tumor primary site as a prognostic factor for Merkel cell carcinoma disease-specific death.

BACKGROUND: Merkel cell carcinoma (MCC) primary site has not been fully investigated as a potential prognostic factor. OBJECTIVE: To determine the incidence by tumor primary site of death due to MCC. METHODS: We undertook a retrospective analysis of the Survival, Epidemiology, and End Results database. MCC patients treated between 1973 and 2016 were grouped by tumor primary site and a competing risks analysis was performed to test the impact of primary site on disease-specific death. Cumulative incidence of Merkel cell carcinoma-specific mortality (CMMI) at 5 years was estimated for each primary site. RESULTS: Of 9407 MCC patients identified, 6305 (67.0%) had localized disease, 2397 (25.5%) had regional metastasis, and 705 (7.5%) had distant metastasis. Tumor primary site was predictive of CMMI and varied by stage at diagnosis. Tumors involving the scalp/neck carried the highest CMMI among localized MCC (26.0%). Tumors involving the lip had the highest CMMI among MCC with regional metastasis (56.7%) and distant metastasis (82.1%). LIMITATIONS: Tumor size data were missing for a large proportion of patients, precluding stratification by stage according to current American Joint Committee on Cancer guidelines. CONCLUSIONS: Probability of MCC disease-specific death varies by primary site. The primary site of the tumor may be useful as a prognostic indicator for MCC.

Sociodemographic factors associated with scabies in the inpatient setting.

Knowledge regarding the inpatient burden of scabies is limited, as previous studies have focused on epidemiologic trends in the outpatient setting. Using the National Inpatient Sample to identify sociodemographic factors associated with scabies in hospitalized patients, we found that patients who were aged 40-64, male, homeless, Medicaid-insured/uninsured, and admitted to hospitals in ZIP codes of the lowest income quartile were more likely to be diagnosed with scabies.