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An Open-Label, Multi-Center, Phase IIa Trial of PRX302 Treatment of Patients With Locally Recurrent Prostate Cancer After Primary Radiation Therapy

Primary Purpose

Locally Recurrent Prostate Cancer

Status
Completed
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
PRX302
Sponsored by
Sophiris Bio Corp
About
Eligibility
Locations
Outcomes
Full info

About this trial

This is an interventional treatment trial for Locally Recurrent Prostate Cancer focused on measuring prostate cancer, locally recurrent, PRX302

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)MaleDoes not accept healthy volunteers

Inclusion Criteria:

  • Completed a full course of radiation therapy for prostate cancer at least 2 years before enrollment.
  • Biochemical failure at screening as determined by either the ASTRO or the Phoenix definitions.
  • At least 5 available PSA readings after completion of radiation therapy and prior to screening.
  • PSA level of not greater than 10 ng/mL.
  • PSA doubling time of at least 9 months at screening.
  • Biopsy-proven recurrent localized prostate cancer.
  • Tumor stage T1C to T2C.
  • Prostate volume estimated at 40 mL or less as determined by TRUS.
  • ECOG performance score 0 to 2.
  • Serum testosterone of at least 1 ng/dL.

Exclusion Criteria:

  • Prior history of metastatic prostate cancer.
  • Salvage external beam therapy and/or salvage brachytherapy prior to enrollment.
  • Biological, immunological, chemotherapeutic treatment or cryotherapy after completing radiation.
  • Androgen ablation therapy within 12 months prior to enrollment.
  • Recurrence of prostate cancer within 18 months of definitive primary radiotherapy.
  • Other medication for prostate cancer.
  • Presence of active malignancy other than prostate cancer.
  • Treatment with other investigational therapies within 12 months prior to enrolment.
  • Presence of a chronic indwelling Foley catheter for obstructive uropathy.
  • Previous transurethral resection of the prostate (TURP), transurethral resection of the bladder neck, photo-selective vaporization of the prostate (PVP) or other resection surgery in the urinary tract.
  • Previous treatment with PRX302.
  • Any evidence of metastatic disease on bone scan, CT or magnetic resonance imaging (MRI) within 3 months prior to enrollment.

Sites / Locations

  • Urology San Antonio
  • Scott & White Memorial Hospital

Outcomes

Primary Outcome Measures

PSA levels, PSA doubling time, PSA velocity and tumor burden assessment by biopsy compared to screening.

Secondary Outcome Measures

Safety and tolerability of PRX302.

Full Information

First Posted
May 26, 2008
Last Updated
October 27, 2009
Sponsor
Sophiris Bio Corp
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1. Study Identification

Unique Protocol Identification Number
NCT00686088
Brief Title
An Open-Label, Multi-Center, Phase IIa Trial of PRX302 Treatment of Patients With Locally Recurrent Prostate Cancer After Primary Radiation Therapy
Official Title
An Open-Label, Multi-Center, Phase IIa Trial of PRX302 Treatment of Patients With Locally Recurrent Prostate Cancer After Primary Radiation Therapy
Study Type
Interventional

2. Study Status

Record Verification Date
September 2009
Overall Recruitment Status
Completed
Study Start Date
February 2008 (undefined)
Primary Completion Date
September 2009 (Actual)
Study Completion Date
September 2009 (Actual)

3. Sponsor/Collaborators

Name of the Sponsor
Sophiris Bio Corp

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
The purpose of this study is to determine the therapeutic activity of different concentrations of PRX302 at increasing volumes and/or number of deposits per gram of prostate. Therapeutic activity will be determined based on changes in PSA levels, PSA velocity, PSA doubling time and tumor burden following treatment.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Locally Recurrent Prostate Cancer
Keywords
prostate cancer, locally recurrent, PRX302

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
30 (Anticipated)

8. Arms, Groups, and Interventions

Intervention Type
Drug
Intervention Name(s)
PRX302
Intervention Description
Determination of the therapeutic activity of different concentrations of PRX302 at increasing volumes and/or number of deposits per gram of prostate.
Primary Outcome Measure Information:
Title
PSA levels, PSA doubling time, PSA velocity and tumor burden assessment by biopsy compared to screening.
Time Frame
Day 45 and Day 180
Secondary Outcome Measure Information:
Title
Safety and tolerability of PRX302.
Time Frame
12 months.

10. Eligibility

Sex
Male
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Completed a full course of radiation therapy for prostate cancer at least 2 years before enrollment. Biochemical failure at screening as determined by either the ASTRO or the Phoenix definitions. At least 5 available PSA readings after completion of radiation therapy and prior to screening. PSA level of not greater than 10 ng/mL. PSA doubling time of at least 9 months at screening. Biopsy-proven recurrent localized prostate cancer. Tumor stage T1C to T2C. Prostate volume estimated at 40 mL or less as determined by TRUS. ECOG performance score 0 to 2. Serum testosterone of at least 1 ng/dL. Exclusion Criteria: Prior history of metastatic prostate cancer. Salvage external beam therapy and/or salvage brachytherapy prior to enrollment. Biological, immunological, chemotherapeutic treatment or cryotherapy after completing radiation. Androgen ablation therapy within 12 months prior to enrollment. Recurrence of prostate cancer within 18 months of definitive primary radiotherapy. Other medication for prostate cancer. Presence of active malignancy other than prostate cancer. Treatment with other investigational therapies within 12 months prior to enrolment. Presence of a chronic indwelling Foley catheter for obstructive uropathy. Previous transurethral resection of the prostate (TURP), transurethral resection of the bladder neck, photo-selective vaporization of the prostate (PVP) or other resection surgery in the urinary tract. Previous treatment with PRX302. Any evidence of metastatic disease on bone scan, CT or magnetic resonance imaging (MRI) within 3 months prior to enrollment.
Facility Information:
Facility Name
Urology San Antonio
City
San Antonio
State/Province
Texas
ZIP/Postal Code
78229
Country
United States
Facility Name
Scott & White Memorial Hospital
City
Temple
State/Province
Texas
ZIP/Postal Code
76508
Country
United States

12. IPD Sharing Statement

Learn more about this trial

An Open-Label, Multi-Center, Phase IIa Trial of PRX302 Treatment of Patients With Locally Recurrent Prostate Cancer After Primary Radiation Therapy

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