Publications by authors named "Brent K Hollenbeck"

Importance: Active surveillance in men with less aggressive prostate cancer is inconsistently used despite clinical guidelines. Renumeration generally favors treatment over conservative management and may contribute to the variable adoption of active surveillance, which suggests that value-based payment incentives may promote guideline-concordant care.

Objective: To describe the adoption of active surveillance in low-risk prostate cancer, following the initiation of a novel payment incentive sponsored by a commercial payer to support its use.

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Introduction: Oral targeted therapies are a standard of care for men with advanced prostate cancer. However, these therapies are expensive, which may be a barrier to some, particularly the most economically disadvantaged. Through investment in programs to assist this population, savings generated from the 340B program have the potential to mitigate barriers to initiating treatment with targeted therapies in these men.

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Article Synopsis
  • - The study examines how hospital quality affects racial disparities in surgical outcomes for prostate, kidney, and bladder cancer among Black and White patients, using national Medicare data from 2017 to 2020.
  • - Results showed that as hospital quality improved, the gap in successful surgical outcomes between Black and White patients decreased, with a noted 5.7% reduction in disparities for every 0.1 increase in hospital quality.
  • - Additionally, Black patients were less likely to receive treatment at top-quality hospitals compared to their White counterparts (45.2% vs. 49.5%).
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Objective: To examine the relationship between market dynamics, in the form of commercial prices paid to urologists, and utilization of services, as measured by Medicare spending, in men with newly diagnosed prostate cancer.

Methods: We performed a retrospective national cohort study of Medicare beneficiaries with newly diagnosed prostate cancer between 2014 and 2019, with follow-up through 2020. The primary exposure was the commercial price index (ie, the ratio of commercial prices to Medicare prices for a common set of services performed by urologists).

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Background: For men with prostate cancer, there is substantial variation in the use of conservative management, such as active surveillance. Commercial prices, which vary across urology practices, may afford incentives that foster physician behaviors associated with utilization. Such behaviors may "spillover" to the Medicare population and affect quality.

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  • There is growing recognition that prostate cancer patients often have germline variants that can have significant implications for their health and that of their families, necessitating a deeper understanding of which individuals may carry these variants.
  • A study involving 505 prostate cancer patients was conducted, tracking various factors and evaluating the presence of pathogenic or likely pathogenic (P/LP) germline variants through genetic testing aligned with NCCN guidelines.
  • The study found that the occurrence of P/LP variants was similar across different age groups and clinical characteristics, with only the age at testing in metastatic patients showing a predictive association for these variants, indicating challenges in refining existing clinical guidelines.
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Background And Objective: Decipher is a tissue-based genomic classifier (GC) developed and validated in the post-radical prostatectomy (RP) setting as a predictor of metastasis. We conducted a prospective randomized controlled cluster-crossover trial assessing the use of Decipher to determine its impact on adjuvant treatment after RP.

Methods: Eligible patients had undergone RP within 9 mo of enrollment, had pT3-4 disease and/or positive surgical margins, and prostate-specific antigen <0.

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Introduction: The use of expensive oral targeted agents for advanced prostate cancer can be influenced by those who stand to gain from their use. The 340B drug pricing program allows eligible hospitals to purchase medications at steep discounts, generating millions of dollars in savings. The extent to which hospitals engage in higher-risk prescribing due to program incentives is unclear.

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Introduction: Metastatic castration-resistant prostate cancer (mCRPC) is a heterogeneous disease with prognoses varying from months to years at time of castration-resistant diagnosis. Optimal first-line therapy for those with different prognoses is unknown.

Methods: We conducted a retrospective cohort study of men in a national healthcare delivery system receiving first-line therapy for mCRPC (abiraterone, enzalutamide, docetaxel, or ketoconazole) from 2010 to 2017, with follow-up through 2019.

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Background: The use of androgen biosynthesis and second-generation androgen receptor inhibitors for advanced prostate cancer is increasing. Because these therapies alter the androgen pathway, they have been associated with cardiometabolic and neurocognitive toxicities. Although their safety profiles have been assessed in clinical trials, real-world data are limited.

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Introduction: Dual eligible beneficiaries are a vulnerable population who often experience inferior access to care and outcomes compared to non-dual eligible beneficiaries. The Oncology Care Model (OCM) is an alternative payment model that aims to improve coordination and quality of care in beneficiaries receiving chemotherapy and thus may improve care for dual eligible beneficiaries with cancer.

Methods: We used 100% Medicare claims data from 2014 through 2019 and included beneficiaries with bladder, breast, esophageal, colorectal, kidney, lung, pancreatic, or prostate cancer receiving chemotherapy.

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Objective: To assess textbook outcomes by hospital teaching status following major surgery for urologic cancers.

Methods: We used 100% national Medicare Provider Analysis and Review files from 2017-2020 to assess rates of textbook outcomes in patients undergoing bladder (ie, radical cystectomy), kidney (ie, radical or partial nephrectomy), and prostate (ie, radical prostatectomy) surgery for genitourinary malignancies. The extent of integration of learners into each hospital's workforce-defined as major, minor, and non teaching hospitals-was the primary exposure.

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Cancer treatment has become increasingly expensive, partially due to the use of specialty drugs. The costs of these drugs are often passed down to patients, who may face the consequences of paying for more than they can afford, leading to financial toxicity. The 340B drug pricing program is a health care policy that may provide an opportunity to mitigate the financial consequences of cancer care.

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Article Synopsis
  • Some men with prostate cancer take a treatment called androgen deprivation therapy (ADT), but it can be used too much, which can cause health problems like diabetes and weak bones.
  • We did a study to understand why some doctors overuse ADT and how to stop it, using different theories and surveys to gather information from urologists.
  • From our survey, we found that some doctors are less likely to stop giving ADT unnecessarily, and that better communication and teamwork might help reduce its overuse.
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Introduction: Expensive oral specialty drugs for advanced prostate cancer can be associated with treatment disparities. The 340B program allows hospitals to purchase medications at discounts, generating savings that can improve care of the socioeconomically disadvantaged. This study assessed the effect of hospital 340B participation on advanced prostate cancer.

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The Medicare Shared Savings Program (MSSP) is an alternative payment model launched in 2012, creating Accountable Care Organizations (ACOs) to improve quality and lower costs for Traditional Medicare patients. Most MSSP participants were expected to shift from bearing no financial risk to a 2-sided risk model (ie, bonus if spending reduced below historical benchmarks, penalty if not), yet fewer than 20% did. Therefore, in 2019, the Centers for Medicare and Medicaid Services launched the Pathways to Success program, which required shifting to a 2-sided model within 12 months.

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Objective: To examine the effect of urologist participation in value-based payment models on the initial management of men with newly diagnosed prostate cancer.

Methods: Medicare beneficiaries with prostate cancer diagnosed between 2017 and 2019, with 1 year of follow-up, were assigned to their primary urologist, each of whom was then aligned to a value-based payment model (the merit-based incentive payment system [MIPS], accountable care organization [ACO] without financial risk, and ACO with risk). Multivariable mixed-effects logistic regression was used to measure the association between payment model participation and treatment of prostate cancer.

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Background: Urologists practicing in single-specialty groups with ownership in radiation vaults are more likely to treat men with prostate cancer. The effect of divestment of vault ownership on treatment patterns is unclear.

Methods: A 20% sample of national Medicare claims was used to perform a retrospective cohort study of men with prostate cancer diagnosed between 2010 and 2019.

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Introduction: Some worry that physician practices acquired by private equity may increase the use of services to maximize revenue. We assessed the effects of private equity acquisition on spending, use of treatment, and diagnostic testing in men with prostate cancer.

Methods: We used a 20% sample of national Medicare claims to perform a retrospective cohort study of men with prostate cancer diagnosed from 2014 through 2019.

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Objective: To examine survival and disease control outcomes, including metastasis-related survival outcomes, in a large contemporary cohort of patients undergoing radical prostatectomy for localized prostate cancer.

Methods: We conducted a retrospective study of men with localized prostate cancer treated with radical prostatectomy from 2005 to 2015 with follow-up through 2019 in the Veterans Health Administration. We defined biochemical recurrence (BCR) as a prostate-specific antigen ≥0.

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Introduction: Private equity is increasingly engaged in the acquisition of urology practices. The implications of strategies to enhance practice value deployed by these firms for patients are unclear.

Methods: We conducted a retrospective study of urologist performance in the MIPS (Merit-based Incentive Payment System) program for 2017 to 2020 using national Medicare data from the Quality Payment Program file.

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Introduction: We performed a study to evaluate the association between urologist performance in the Merit-Based Incentive Payment System (MIPS), and quality and spending for prostate cancer care.

Methods: Medicare beneficiaries with prostate cancer diagnosed between 2017 and 2019 were assigned to their primary urologist. Associated MIPS scores were identified and categorized based on thresholds for payment adjustment as low (worst), moderate, and high (best).

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Article Synopsis
  • The study investigates how in-office dispensing of oral targeted agents by urologists affects access to medications for men with advanced prostate cancer, particularly focusing on Black men who are often undertreated.
  • Using a large dataset from Medicare, the researchers compared prescription rates for these agents before and after the adoption of dispensing practices in urology settings.
  • The results showed that in-office dispensing significantly increased prescription fills for these medications, indicating an improved access model without racial disparities.
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Introduction: Biomarkers for prostate cancer, such as multiparametric MRI (mpMRI) and tissue-based genomics, are increasingly used for treatment decision-making. Using biomarkers indiscriminately and thus ignoring competing risks of mortality may lead to treatment in some men who derive little clinical benefit. We assessed the relationship between urology practice use of biomarkers and subsequent treatment in men with newly diagnosed prostate cancer.

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