The Apex of Spacing
Whole-gland spacing for prostate cancer radiation therapies
About
Lift your patients to the apex of care with the first non-hydrogel spacer for modern prostate cancer radiation treatments.
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Creates Uniform Space
The BioProtect Balloon Spacer has been shown to create consistent and symmetric whole-gland spacing with minimal variability along the midline.1,2
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Positions Predictably. Fills Adaptively.
With a preshaped balloon visible on ultrasound, MRI, and CT,3 BioProtect’s saline-filling technology enables controllable space creation.
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Protects Quality of Life
BioProtect demonstrated reduced long-term rectal and urinary toxicity versus control in preliminary data.4* Patients reported improved quality of life with significant benefits across bowel, urinary, and sexual domains over 48 months.4*
The BioProtect Balloon Spacer
Proven to Perform. Ready for SBRT.
- Song, Daniel et al. “Prospective, Randomized Controlled Pivotal Trial of Biodegradable Balloon Rectal Spacer for Prostate Radiation Therapy.” International journal of radiation oncology, biology, physics vol. 120,5 (2024): 1410-1420. doi:10.1016/j.ijrobp.2024.07.2145
- Kos, Michael et al. “Multicenter, dual fractionation scheme, single core lab comparison of rectal volume dose reduction following injection of two biodegradable perirectal spacers.” Journal of applied clinical medical physics vol. 24,10 (2023): e14086. doi:10.1002/acm2.14086
- BioProtect Balloon Implant™ System 510(k) K222972, August 2023.
- Song Daniel et al. “Long-term toxicity and patient-reported quality of life after prostate IMRT with or without biodegradable balloon rectal spacer: analysis of a pivotal randomized trial.” Abstract presented at: American Society for Radiation Oncology (ASTRO) 67th Annual Meeting; 2025; San Francisco, CA.
- Tward, Jonathan. “Comparison of Perirectal Spacer Placement Quality during the Learning Curve for 3 FDA approved Products”. Abstract presented at: American Society for Radiation Oncology (ASTRO) 66th Annual Meeting; 2024; Washington, DC.
- Ng, Victor C et al. “Separation Effect of Biodegradable Balloon Spacer on Rectal Dose from Apex to Base in Prostate Cancer SBRT”. Abstract presented at: American Society for Radiation Oncology (ASTRO) 67th Annual Meeting; 2025; San Francisco, CA.
*Preliminary data are from a conference abstract; not yet peer-reviewed; values and follow-up may change upon publication.
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Caution: Federal (USA) law restricts this device to sale by or on the order of a licensed health care professional.
The information contained herein is provided for information purposes only and is not intended to replace discussions with a healthcare provider. The products discussed herein may have different product labelling in different countries. The BioProtect Balloon Implant™ System is intended to temporarily position the anterior rectal wall away from the prostate during radiotherapy for prostate cancer. In creating this space, the BioProtect Balloon Implant™ System intends to reduce the radiation dose delivered to the anterior rectum. The BioProtect Balloon Implant™ System is a balloon made of a biodegradable material that maintains that space for the entire course of prostate radiotherapy treatment and is completely absorbed by the patient’s body over time.