Alpha Radiation Emitters Device (DaRT) for the Treatment of Non-Metastatic Locally Recurrent Prostate Cancer.

This study is a prospective multicenter, single arm, open label , interventional clinical study to assess the feasibility and safety of intratumoral Alpha DaRT seeds for the treatment of men with non metastatic locally recurrent prostate cancer. Diffusing Alpha emitters Radiation Therapy (DaRT). Treatment will be delivered through radioactive sources \[Ra-224 containing Stainless steel 316LVM tubes- (Alpha DaRT seeds)\] inserted into the tumors. The purpose of this study is to assess the feasibility and safety of intratumoral DaRT seeds implantation for the treatment of locally recurrent prostate cancer. The secondary objectives is 1. To evaluate feasibility of interstitial radiotherapy using DaRT seeds. Feasibility will be determined according to the rate of successful placement of DaRT seeds via imaging \[Timeframe: immediately following the insertion procedure 2. To assess the impact of DaRT seeds on patient reported quality of life.