Abstract:
UNLABELLED:The response of non-muscle-invasive bladder cancer (NMIBC) to intravesical immunotherapy with bacillus Calmette-Guérin (BCG) depends on adequate stimulation of an immune response. Although BCG has been used for decades, we lack tools to accurately predict response in individual patients. To address this deficiency, we initiated a clinical trial in patients with intermediate- and high-risk NMIBC. BCG was administered according to the Southwest Oncology Group protocol. Urine samples were collected for cytokine assay at baseline, immediately before and after BCG instillation at 6 wk, and immediately before and after the third BCG instillation of the first maintenance course. Levels of 12 cytokines were measured, and changes from baseline were calculated after treatment. A total of 130 patients were enrolled. Increases in single cytokines correlated with recurrence, but the best predictor of recurrence was changes in a combination of cytokines. A nomogram (CyPRIT) constructed using urinary levels of nine inducible cytokines (IL-2, IL-6, IL-8, IL-18, IL-1ra, TRAIL, IFN-γ, IL-12[p70], and TNF-α) predicted the likelihood of recurrence with 85.5% accuracy (95% confidence interval 77.9–93.1%).” This cytokine panel and nomogram have potential for identifying patients at risk of tumor recurrence during BCG treatment to guide modification of the dose and duration of BCG immunotherapy. TRIAL REGISTRATION:Clinicaltrials.gov NCT01007058.
journal_name
Eur Uroljournal_title
European urologyauthors
Kamat AM,Briggman J,Urbauer DL,Svatek R,Nogueras González GM,Anderson R,Grossman HB,Prat F,Dinney CPdoi
10.1016/j.eururo.2015.06.023subject
Has Abstractpub_date
2016-02-01 00:00:00pages
197-200issue
2eissn
0302-2838issn
1873-7560pii
S0302-2838(15)00526-6journal_volume
69pub_type
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