SpaceOAR System Pivotal Study

Boston Scientific

Status and phase: Completed; Phase 3

Conditions: Prostate Cancer

Treatments: Device: SpaceOAR System

Study type: Interventional

Funder types: Industry

Identifiers

NCT01538628

AGX-11-001-US

Details and patient eligibility

About

Evaluate the safety of the SpaceOAR System when the hydrogel is injected between the rectum and prostate in men undergoing radiation therapy (IG-IMRT)

Full description

The purpose of this study is to evaluate the safety of the SpaceOAR System when the hydrogel is injected between the rectum and prostate in men undergoing radiation therapy (IG-IMRT) and to evaluate whether use of the SpaceOAR hydrogel results in a reduction of radiation exposure to the anterior rectum.

Enrollment: 222 patients

Sex: Male

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Subjects greater than 18 years old
• Subjects must have pathologically confirmed invasive adenocarcinoma of the prostate and must be planning to undergo IMRT
• Subjects must have clinical stage T1 or T2 as determined from a biopsy taken within 6 months of the baseline/screening visit with Gleason Score less than or equal to 7
• Subjects Screening/Baseline laboratory testing must meet the following laboratory value criteria: PSA less than or equal to 20 ng/mL,hematocrit greater than 30%,serum creatinine less than 2.0 mg/dl, serum AST and ALT less than 2.5 times upper limit of institution normal, and serum bilirubin less than 2.0 mg/dl
• Subject or authorized representative, has been informed of the nature of the study and has provided written informed consent, approved by the appropriate Institutional Review Board (IRB) of the respective clinical site

Exclusion criteria

• Prostate greater than 80cc documented within 3 months preceding the Screening/Baseline visit
• Subjects with extracapsular extension of the prostate cancer, with greater than 50% of the number of biopsy cores positive for cancer, metastatic disease, other ongoing cancers which will be treated during the study, or subjects for whom pelvic lymph node radiotherapy is planned
• Subjects with any prior invasive malignancy (except non-melanomatous skin cancer) unless the subject has been disease free for a minimum of 5 years.
• Subjects who are indicated for androgen deprivation therapy or who have been treated with androgen therapy within the prior 3 months.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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222 participants in 2 patient groups

SpaceOAR

Experimental group

Description:

Men meeting the study eligibility criteria will be scheduled for fiducial marker placement using a transperineal approach with ultrasound guidance. Following successful fiducial marker placement, subjects will be randomized (2:1) to the treatment group or control group. Subjects randomized to the treatment group will undergo placement of 10 mL of SpaceOAR hydrogel

Treatment:

Device: SpaceOAR System

Control

No Intervention group

Description:

Men meeting the study eligibility criteria will be scheduled for fiducial marker placement using a transperineal approach with ultrasound guidance. Following successful fiducial marker placement, subjects will be randomized (2:1) to the treatment group or control group. Subjects randomized to the control group will not receive injection of the SpaceOAR hydrogel.