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. 1999 Apr 26;1999(2):CD001526. doi: 10.1002/14651858.CD001526

Iversen 1990.

Methods Multicenter 
 Randomization: Stratified by participating center, local block randomization 
 Double‐blinded: no 
 Withdrawals documented: partial 
 Intention‐to‐treat analysis (ITT): yes
Participants Geographic setting: Denmark 
 Number enrolled: 264 
 Number randomized, control: 133 
 Number analyzed,control: 133 
 Number randomized, treatment: 129 
 Number analyzed, treatment: 129 
 Median/mean age control group: 72 
 Median/mean age treatment group: 72
Interventions Control: total or subcapsular bilateral orchiectomy 
 Treatment: goserelin 3.6 mg sc plus flutamide 750 mg 
 Median time to follow‐up: 57 months 
 Lost to follow‐up: NA
Outcomes Overall survival 
 Cancer‐specific survival 
 Progression‐related outcomes 
 Time to treatment failure 
 Adverse events
Notes Percentage M1 disease, control:89% 
 Percentage M1 disease, treatment: 93% 
 Percentage poorly differentiated tumor, control: 63% 
 Percentage poorly differentiated tumor, treatment: 50%
Risk of bias
Bias Authors' judgement Support for judgement
Allocation concealment (selection bias) Unclear risk B ‐ Unclear