J

J. Erik Busby

Emory University

Publishes on Bladder and Urothelial Cancer Treatments, Prostate Cancer Diagnosis and Treatment, Prostate Cancer Treatment and Research. 46 papers and 2.7k citations.

46Publications
2.7kTotal Citations

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Prostate Cancer
James L. Mohler, Robert R. Bahnson, Barry Boston et al.|Journal of the National Comprehensive Cancer Network|2010
Cited by 902Open Access

In the late 1980s and early 1990s, the number of newly diagnosed prostate cancers in the United States increased dramatically, surpassing lung cancer as the most common cancer in men. For example, the percentage of patients with low-risk disease has increased (45.3% in 1999-2001 vs. 29.8% in 1989-1992; P < .0001). In 2009, an estimated 192,280 new cases were diagnosed and prostate cancer was expected to account for 25% of new cancer cases in men. 1 Fortunately, the age-adjusted death rates from prostate cancer have also declined (-4.1% annually from 1994 to 2001).

Can Urinary PCA3 Supplement PSA in the Early Detection of Prostate Cancer?
John T. Wei, Ziding Feng, Alan W. Partin et al.|Journal of Clinical Oncology|2014
Cited by 274Open Access

PURPOSE: Given the limited sensitivity and specificity of prostate-specific antigen (PSA), its widespread use as a screening tool has raised concerns for the overdiagnosis of low-risk and the underdiagnosis of high-grade prostate cancer. To improve early-detection biopsy decisions, the National Cancer Institute conducted a prospective validation trial to assess the diagnostic performance of the prostate cancer antigen 3 (PCA3) urinary assay for the detection of prostate cancer among men screened with PSA. PATIENTS AND METHODS: In all, 859 men (mean age, 62 years) from 11 centers scheduled for a diagnostic prostate biopsy between December 2009 and June 2011 were enrolled. The primary outcomes were to assess whether PCA3 could improve the positive predictive value (PPV) for an initial biopsy (at a score > 60) and the negative predictive value (NPV) for a repeat biopsy (at a score < 20). RESULTS: For the detection of any cancer, PPV was 80% (95% CI, 72% to 86%) in the initial biopsy group, and NPV was 88% (95% CI, 81% to 93%) in the repeat biopsy group. The addition of PCA3 to individual risk estimation models (which included age, race/ethnicity, prior biopsy, PSA, and digital rectal examination) improved the stratification of cancer and of high-grade cancer. CONCLUSION: These data independently support the role of PCA3 in reducing the burden of prostate biopsies among men undergoing a repeat prostate biopsy. For biopsy-naive patients, a high PCA3 score (> 60) significantly increases the probability that an initial prostate biopsy will identify cancer.

Prostate Cancer, Version 3.2012 Featured Updates to the NCCN Guidelines
James L. Mohler, Andrew J. Armstrong, Robert R. Bahnson et al.|Journal of the National Comprehensive Cancer Network|2012
Cited by 254Open Access

The NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) for Prostate Cancer provide multidisciplinary recommendations for the clinical management of patients with prostate cancer. These NCCN Guidelines Insights highlight notable recent updates. Abiraterone acetate is a first-in-class hormonal agent that represents a new standard of care for patients with metastatic castration-recurrent prostate cancer who have previously received docetaxel (category 1 recommendation). Abiraterone acetate also received category 2B recommendations in the prechemotherapy setting for asymptomatic patients or symptomatic patients who are not candidates for docetaxel. The NCCN Prostate Cancer Panel also added new indications for existing agents, including the option of sipuleucel-T as second-line therapy. In addition, brachytherapy in combination with external beam radiation therapy with or without androgen deprivation therapy is now an alternative for patients with high-risk localized tumors or locally advanced disease.

Neoadjuvant Chemotherapy Followed by Aggressive Surgical Consolidation for Metastatic Penile Squamous Cell Carcinoma
Carlos E. Bermejo, J. Erik Busby, Philippe E. Spiess et al.|The Journal of Urology|2007
Cited by 174

PURPOSE: Combination chemotherapy for advanced penile cancer can produce partial response rates of up to 64%. Complete responses are rare, suggesting a need for adjunct therapies to facilitate cure. We evaluated patients with metastases who underwent surgical consolidation after responding to chemotherapy. MATERIALS AND METHODS: We reviewed the records of 59 patients with advanced penile carcinoma treated from 1985 to 2000 and identified 10 treated with surgical consolidation after demonstrating a stable, partial or complete response to chemotherapy. Presenting tumor burden included pelvic and inguinal metastases. Surgical outcomes and survival were assessed. RESULTS: After chemotherapy 4 patients had a complete response, 1 had a partial response and 5 had stable disease. Three major perioperative complications, including postoperative bleeding, an episode of acute renal failure and deep venous thrombosis in 1 patient each, and 4 minor complications, including skin breakdowns in 3 and wound seroma in 1, occurred. Three cases were rendered pN0. All 3 patients received ifosfamide, paclitaxel and cisplatin chemotherapy. Seven patients had 3 or fewer metastatic lymph nodes following surgery, of whom 4 showed no disease and 3 died. All 3 patients with greater than 3 metastatic lymph nodes died. For all patients the 5-year actuarial survival rate was 40% with a median survival of 26 months. Patients with 3 or fewer and greater than 3 positive nodes had a median survival of 48 and 23 months, respectively (p = 0.116). CONCLUSIONS: Select patients with metastatic penile cancer that shows disease stabilization or a response to chemotherapy should be considered for surgical consolidation to extend survival.

Nephroureterectomy for treating upper urinary tract transitional cell carcinoma: time to change the treatment paradigm?
Gordon Brown, J. Erik Busby, Christopher G. Wood et al.|British Journal of Urology|2006
Cited by 130

OBJECTIVE: To evaluate factors associated with disease recurrence and survival in patients undergoing nephroureterectomy for upper urinary tract transitional cell carcinoma (UUT-TCC) in one centre over an 18-year period. PATIENTS AND METHODS: The records of patients who had a nephroureterectomy for UUT-TCC at our institution from 1986 to 2004 were reviewed for clinical, pathological and treatment period data. Cox's proportional hazards regression model was used to test the statistical significance of several potential prognostic factors for recurrence and survival. RESULTS The median overall duration of follow-up was 2.5 years for 184 patients. Significant prognosticators for disease-specific survival (DSS) by univariate analysis were tumour stage (P < 0.01), tumour grade (P < 0.01), node-positive disease (P < 0.01), multifocality (P = 0.03), previous cystectomy (P < 0.01) and synchronous bilateral UUT-TCC (P = 0.02). On multivariate analysis, only tumour stage (P = 0.03) and grade (P = 0.01) correlated with DSS. The median recurrence-free survival duration was 2.4 years. In 44 patients, the disease recurred outside the bladder; 15 (8.2%) had local recurrence, 20 (10.9%) distant metastasis, and nine (4.9%) both local and distant recurrence. Bladder tumours occurred in 40 (26.1%) patients with no previous cystectomy. The evaluation of treatment outcome during three periods of the study showed no significant effect on DSS. CONCLUSION: Tumour stage and grade correlated with DSS in this cohort, with no improvement in outcome over the 18-year period assessed. Patients with high-stage and high-grade disease continue to fare poorly, suggesting a need for changing the treatment protocol. Judiciously applying a multimodal approach to the management of high-risk patients by incorporating neoadjuvant chemotherapy and surgical resection might provide, for the first time, the opportunity to improve patient outcome.