NCT00975429

Study Using WST11 in Patients With Localized Prostate Cancer

Vascular-Targeted Photodynamic Therapy Using WST11 in Patients With Localized Prostate Cancer

• Status: Completed
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 86 (actual)
• Sponsor: Steba Biotech S.A. · Academic / Other
• Sex: Male
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

The aim of this trial is to determine the optimal treatment conditions to achieve prostate cancer tumour ablation and to assess the effects of WST11-mediated Vascular-Targeted Photodynamic therapy (VTP) treatment in patients with localized prostate cancer. The secondary objectives are to assess the safety and quality of life following WST11-mediated VTP treatment,to assess the effects,safety and quality of life following a second WST11-mediated VTP treatment; and to explore optimisation techniques to reduce the duration of the VTP procedure.

Detailed description

This trial is designed as a multicentre, phase II, open-labeled, multi-arm, single intravenous (IV) dose study. The patient is to receive general anesthesia. WST11-mediated VTP will consist of the combination of a single IV administration of WST11 at doses of 4 or 6 mg/kg using 753nm laser light at a fixed power (150 mW/cm or 200 mW/cm or 250 mW/cm ) and light energy (200 J/cm or 300J/cm) delivered through transperineal interstitial optical fibers. The fibers are introduced into transparent needles that are positioned in the prostate under ultra sound guidance. The tumour location is established using transrectal biopsy and MR imaging. The number of fibers and the total light energy will be adapted to each patient based on a treatment planning proposed by treatment planning group.

Conditions

• Prostate Cancer

Interventions

Type	Name	Description
DRUG	WST11	The WST11-mediated VTP procedure will consist of a single IV administration of WST11 at a dose of 4mg/kg using a 753nm laser light at a fixed power (150mW/cm or 200mW/cm or 250mW/cm) and light energy (200J/cm or 300J/cm) delivered through transperineal interstitial optical fibers. The fibers are introduced into transparent needles that are positioned in the prostate under ultra sound image guidance. The tumour location is established using transrectal biopsy and MR imaging. The number of fibers and the total light energy will be adapted to each patient based on a treatment planning proposed by treatment planning group.
DRUG	WST11	The WST11-mediated VTP procedure will consist of a single IV administration of WST11 at a dose of 6mg/kg in patients using a 753nm laser light at a fixed power (150mW/cm or 200mW/cm or 250mW/cm ) and light energy (200J/cm or 300J/cm) delivered through transperineal interstitial optical fibers. The fibers are introduced into transparent needles that are positioned in the prostate under ultra sound image guidance. The tumour location is established using transrectal biopsy and MR imaging. The number of fibers and the total light energy will be adapted to each patient based on a treatment planning proposed by treatment planning group.

Timeline

• Start date: 2009-09-01
• Primary completion: 2011-12-01
• Completion: 2012-08-01
• First posted: 2009-09-11
• Last updated: 2015-04-28

Locations

7 sites across 3 countries: France, Netherlands, United Kingdom