Patients who had previously been treated with docetaxel had a higher incidence of grade @-@ thrombocytopenia with radium-@ than with placebo ( @ -LSB- @ % -RSB- of @ patients vs five -LSB- @ % -RSB- of @ patients ) , whereas the incidence was similar between treatment groups among patients with no previous docetaxel use ( seven -LSB- @ % -RSB- of @ patients vs one -LSB- @ % -RSB- of @ patients ) .