Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2 Suppl 2
pubmed:dateCreated
1996-10-23
pubmed:abstractText
Experimental studies have shown that neoadjuvant androgen therapy dramatically reduces the rate of local recurrence after tumor excision. In the clinical setting, a 3-month course of neoadjuvant therapy before radical prostatectomy has been shown to significantly reduce positive margin rates, but follow-up is too short to assess the impact of such therapy on biochemical and clinical recurrence rates. A phase II study using an ultrasensitive assay showed that 8 months of neoadjuvant therapy were required before prostate-specific antigen (PSA) levels to reach their nadir in 84% of study participants. The positive margin rate in this study was substantially lower than those reported in the literature. Importantly, restaging of specimens after prostatic acid phosphatase (PAP) immunostaining did not upstage or increase positive margin rates. In addition, prolonged neoadjuvant therapy did not appear to result in progression of androgen-independent clones. A randomized phase III trial has been initiated to determine whether an 8-month course of neoadjuvant hormonal therapy is superior to a 3-month course in reducing positive margin rates and biochemical recurrences in patients with clinically confined prostate cancer.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1081-0943
pubmed:author
pubmed:issnType
Print
pubmed:volume
14
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
39-45; discussion 46-7
pubmed:dateRevised
2005-11-16
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Optimal duration of neoadjuvant androgen withdrawal therapy before radical prostatectomy in clinically confined prostate cancer.
pubmed:affiliation
Division of Urology, University of British Columbia, Vancouver Hospital, Canada.
pubmed:publicationType
Journal Article, Review