SpaceIT Hydrogel System for Perirectal Spacing

NCT ID: NCT06451614

Last Updated: 2026-02-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

230 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-10-30

Study Completion Date

2028-03-31

Brief Summary

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To evaluate the safety and effectiveness of the SpaceIT™ Hydrogel System in patients undergoing External Beam Radiotherapy (EBRT) for the treatment of prostate cancer.

Detailed Description

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HYDROSPACE study is a prospective, randomized, multicenter study to evaluate the safety and effectiveness of SpaceIT in patients undergoing External Beam Radiotherapy (EBRT) for the treatment of prostate cancer.

Subjects randomized to the investigational arm will receive SpaceIT Hydrogel System

Subjects randomized to the control arm will receive a commercially marketed Boston Scientific perirectal hydrogel spacer, SpaceOAR System or SpaceOAR Vue Hydrogel

Conditions

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Prostate Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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SpaceIT Hydrogel System

Subjects randomized to the investigational arm will undergo a hydrogel procedure with the SpaceIT investigational device.

Group Type EXPERIMENTAL

SpaceIT Hydrogel System

Intervention Type DEVICE

SpaceIT Hydrogel System is intended to temporarily position the anterior rectal wall away from the prostate during radiotherapy for prostate cancer and in creating this space it is the intent of SpaceIT Hydrogel System to reduce the radiation dose delivered to the anterior rectum. The SpaceIT Hydrogel System is composed of a radiopaque, biodegradable material designed to maintain space for approximately 12 weeks and be absorbed in about 6 months, sufficient time to support the intended use.

SpaceIT has an iodinated PEG powder making it radiopaque.

Commercially available Boston Scientific Spacer

Subjects randomized to the control arm will undergo a hydrogel procedure with the Boston Scientific commercially available SpaceOAR or SpaceOAR VUE device.

Group Type ACTIVE_COMPARATOR

Commercially available Boston Scientific Spacer

Intervention Type DEVICE

Boston Scientific's commercially available SpaceOAR Hydrogel System or SpaceOAR Vue Hydrogel System is intended to temporarily position the anterior rectal wall away from the prostate during radiotherapy for prostate cancer and in creating this space it is the intent of SpaceOAR Hydrogel System or SpaceOAR Vue Hydrogel System to reduce the radiation dose delivered to the anterior rectum. SpaceOAR and SpaceOAR Vue are both perirectal spacers. SpaceOAR Vue specifically has an iodinated PEG powder making it radiopaque. SpaceOAR does not contain iodinated PEG powder and is not radiopaque. The SpaceOAR Hydrogel System or SpaceOAR Vue Hydrogel System maintains space during prostate radiotherapy treatment and is completely absorbed by the patient's body over time.

Interventions

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SpaceIT Hydrogel System

SpaceIT Hydrogel System is intended to temporarily position the anterior rectal wall away from the prostate during radiotherapy for prostate cancer and in creating this space it is the intent of SpaceIT Hydrogel System to reduce the radiation dose delivered to the anterior rectum. The SpaceIT Hydrogel System is composed of a radiopaque, biodegradable material designed to maintain space for approximately 12 weeks and be absorbed in about 6 months, sufficient time to support the intended use.

SpaceIT has an iodinated PEG powder making it radiopaque.

Intervention Type DEVICE

Commercially available Boston Scientific Spacer

Boston Scientific's commercially available SpaceOAR Hydrogel System or SpaceOAR Vue Hydrogel System is intended to temporarily position the anterior rectal wall away from the prostate during radiotherapy for prostate cancer and in creating this space it is the intent of SpaceOAR Hydrogel System or SpaceOAR Vue Hydrogel System to reduce the radiation dose delivered to the anterior rectum. SpaceOAR and SpaceOAR Vue are both perirectal spacers. SpaceOAR Vue specifically has an iodinated PEG powder making it radiopaque. SpaceOAR does not contain iodinated PEG powder and is not radiopaque. The SpaceOAR Hydrogel System or SpaceOAR Vue Hydrogel System maintains space during prostate radiotherapy treatment and is completely absorbed by the patient's body over time.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

Subjects must meet the following criteria to be eligible for participation in the study:

1. Age ≥18 years old
2. Subjects must have had pathologically confirmed (by routine hematoxylin and eosin \[H\&E\] staining) invasive adenocarcinoma of the prostate and planning to undergo EBRT
3. Subjects must meet ALL of the following:

1. Clinical stage T1-T2c (AJCC Ver. 8) tumor AND
2. Gleason Score 7 or less as determined from a biopsy taken within 12 months of the Baseline visit AND
3. Demonstrated blood prostate specific antigen (PSA) levels ≤20 ng/ml as measured within 6 months of the Baseline visit and prior to commencing androgen deprivation therapy (ADT)
4. Subject is able to provide written informed consent, approved by the appropriate Institutional Review Board/Ethics Committee/Research Ethics Board (IRB/EC/REB) of the respective clinical site

Exclusion Criteria

1. Prostate \> 80 cc
2. Subjects who are planning to undergo brachytherapy or focal boost
3. Subjects who have magnetic resonance imaging (MRI) evidence of gross posterior extracapsular extension (ECE) of the prostate cancer Note: MRI must be taken within 6 months prior to the Baseline visit
4. Subjects who have metastatic disease, other ongoing cancers which are being treated during the study or subjects for whom pelvic lymph node radiotherapy is planned
5. Subjects with any prior invasive solid tumor malignancy or hematologic malignancy (except non-melanomatous skin cancer) unless the subject has been disease free and treatment free for a minimum of 3 years
6. History of radical prostatectomy, other ablative anti-prostate cancer therapy (e.g., cryotherapy, high intensity focused ultrasound, irreversible electroporation) or previous pelvic irradiation (including prior prostate brachytherapy) at any time prior to screening
7. History of transurethral prostate surgery (e.g., Transurethral Needle Ablation (TUNA), Transurethral Microwave Therapy (TUMT), Transurethral Resection of the Prostate (TURP)) if performed within 1 year prior to screening
8. History of prior pelvic surgery requiring low anterior or abdominoperineal resections or rectal surgery
9. History of or current perirectal disease that may interfere with interpretation of study outcomes, including anal or perianal diseases such as fistula
10. Bleeding hemorrhoids requiring medical intervention within the prior three months
11. Diagnosed active bleeding disorder or a clinically significant coagulopathy, defined as PTT \> 70s or aPTT\>35s or INR \> 1.4, or platelet count \< 100,000 per mm3 Note: Subjects on anticoagulants may be included if the anticoagulant medication can be held for index procedure
12. Active inflammatory or infectious process involving the perineum, GI or urinary tract based on positive diagnosis or suspected diagnosis in the presence of fever \>38⁰ C, WBC \> 12,000/uL
13. Inability to undergo pelvic MRI or presence of implants causing severe artifact (e.g. bilateral arthroplasty) that interferes with imaging interpretation for this study at Investigator discretion
14. If a subject was enrolled in another investigational drug or device trial that had not completed the primary endpoint or that clinically interfered with this study
15. Unable to comply with the study requirements or follow-up schedule
16. Any condition the Investigator believed would interfere with the intent of the study or would make participation not in the best interest of the patient
17. Known PEG (polyethylene glycol) sensitivity or allergy
18. Known iodine sensitivity or allergy
19. ADT, if applicable, cannot or was not started 15-60 days prior to the pre-index procedure RT planning imaging and is planned to continue for a total planned duration greater than 6 months
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Boston Scientific Corporation

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Brian Baumann, MD

Role: PRINCIPAL_INVESTIGATOR

Springfield Clinic

Locations

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City of Hope

Duarte, California, United States

Site Status

Orange County Urology Associates

Laguna Hills, California, United States

Site Status

Ronald Reagan UCLA Medical Center

Los Angeles, California, United States

Site Status

Baptist Hospital of Miami

Miami, Florida, United States

Site Status

Orlando Health Cancer Institute

Orlando, Florida, United States

Site Status

Emory University Hospital

Atlanta, Georgia, United States

Site Status

Associated Urological Specialists

Chicago Ridge, Illinois, United States

Site Status

UroPartners

Glenview, Illinois, United States

Site Status

Springfield Clinic, LLC

Springfield, Illinois, United States

Site Status

University of Kansas Hospital

Kansas City, Kansas, United States

Site Status

Mary Bird Perkins Cancer Center

Baton Rouge, Louisiana, United States

Site Status

Integrated Medical Professionals

New York, New York, United States

Site Status

Perlmutter Cancer Center - NYU Langone

New York, New York, United States

Site Status

Memorial Sloan Kettering

New York, New York, United States

Site Status

Northwell Health

New York, New York, United States

Site Status

University Hospitals of Cleveland-Hospital

Cleveland, Ohio, United States

Site Status

Mercy Cancer Center Bon Secours Mercy Healt

Elyria, Ohio, United States

Site Status

MidLantic Urology

Bala-Cynwyd, Pennsylvania, United States

Site Status

Perelman Center for Advanced Medicine

Philadelphia, Pennsylvania, United States

Site Status

Gibbs Cancer Center and Research Institute

Greer, South Carolina, United States

Site Status

Midtown Urology Associates

Austin, Texas, United States

Site Status

University of Texas, Southwestern Medical Center

Dallas, Texas, United States

Site Status

Rio Grande Urology

El Paso, Texas, United States

Site Status

Houston Metro Urology

Houston, Texas, United States

Site Status

Evergreen Hospital Medical Center

Kirkland, Washington, United States

Site Status

University of Washington Medical Center-Hospital

Seattle, Washington, United States

Site Status

The Ottawa Hospital - General Campus

Ottawa, Ontario, Canada

Site Status

Sunnybrook Health Sciences Centre-Hospital

Toronto, Ontario, Canada

Site Status

Princess Margaret Cancer Centre

Toronto, Ontario, Canada

Site Status

Countries

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United States Canada

Other Identifiers

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U0755

Identifier Type: -

Identifier Source: org_study_id

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