SpaceOAR® Hydrogel treatment

Giving you a better quality of life through safer prostate cancer radiotherapy. In collaboration with our technology partners Augmenix. We offer SpaceOAR® hydrogel as part of our standard treatment, where appropriate, to men diagnosed with prostate cancer.

What is SpaceOAR® Hydrogel?


SpaceOAR hydrogel is an option for men having radiotherapy for prostate cancer. It’s a water-based soft gel implant that temporarily creates a small gap between the prostate and the rectum. This gap protects the rectum from radiation exposure during prostate radiotherapy, meaning fewer side-effects.

What does SpaceOAR treatment involve?

The SpaceOAR hydrogel is injected before you start radiotherapy treatment, it is a once off procedure only. Once the gel is in place, most people can’t feel it.

What happens afterwards?

SpaceOAR hydrogel stays in place for around three months. After that, it’s naturally absorbed by the body.

What are the main benefits of treatment?

The gel pushes the rectum away from the prostate. This creates a protective gap that helps prevent damage to the rectum. The cancer cells can be accurately targeted while healthy tissue is protected, reducing many side-effects.

Who can benefit from SpaceOAR?

SpaceOAR hydrogel can be used with both internal and external radiotherapy. It’s been used during more than 17,000 procedures worldwide. But SpaceOAR isn’t for everyone. Your doctor is the best person to advise you on it.

Dr Philip Camilleri and Mr Simon Brewster talk about using hydrogel in their clinical practices.

SpaceOAR in use

The illustrations show the positioning of the SpaceOAR gel between the prostate and the rectum and the safe space created.

Is SpaceOAR safe?

SpaceOAR hydrogel has been shown in clinical studies to be safe and effective*. It’s also been approved by NICE. With the gel in place, your consultant can target your cancer while reducing the risks of side-effects compared to having radiotherapy without SpaceOAR.

You may notice some temporary discomfort at the injection site and feel full in the back passage. Both these feelings normally quickly pass. There is also a very small risk of infection that can be treated with antibiotics if required.

* (Reference: Mariados N and others. Int J Radiat Oncol Biol Phys 2015; 92:971-977)

Meet our doctors

Everything we do is focused on designing better care for our patients. With a network of 12 specialist oncology treatment centres across the UK, we provide the most up-to-date treatments and technology as standard.

We attract and retain some of the most experienced doctors in the country, who all have a passion for improving patient outcomes and specialise in the treatment of different types of cancer.

Meet our doctors

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17 Kings Hill Avenue, Kings Hill, West Malling, Kent, ME19 4UA


Little Aston Hall Drive, Sutton Coldfield, West Midlands, B74 3BF


The Park Cancer Centre, Sherwood Lodge Drive, Burntstump Country Park, Nottingham, NG5 8RX


Bartons Road, Havant, Hampshire, PO9 5NA


BMI St Martha Oncology Centre, 46 Harvey Road, Guildford, Surrey, GU1 3XL


Chalybeate Close (off Tremona Road), Southampton, SO16 6UY


Springfield Cancer Centre, Lawn Lane, Chelmsford, Essex, CM1 7GU


Unit 710, Centennial Park, Elstree, Borehamwood, Hertfordshire, WD6 3SZ


Sandy Lane West, Peters Way, Oxford, Oxfordshire, OX4 6LB

Milton Keynes

Sunrise Parkway, Linford Wood East, Milton Keynes, Buckinghamshire, MK14 6LS


The Oaks, Fordham Road, Newmarket, Suffolk, CB8 7XN


69 Alma Road, Windsor, Berkshire SL4 3HD