SpaceOAR® Hydrogel treatment

We believe you deserve the best and that’s why we offer SpaceOAR® Hydrogel free of charge as part of your treatment.


Why SpaceOAR® Hydrogel?

SpaceOAR® Hydrogel reduces the radiation exposure to the rectum during treatment meaning fewer side effects and better quality of life.

What does SpaceOAR® Hydrogel treatment involve?

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

How is SpaceOAR® Hydrogel injected?

Injecting SpaceOAR® Hydrogel is a minimally invasive procedure that takes around 30 minutes.

Our urologists use a needle to insert the gel between the prostate and the rectum. The water-soluble gel stays in position during the radiotherapy treatment cycle (four to seven weeks).

The procedure is performed at one of our national partner hospitals as a day case by urologists in the GenesisCare network. We have a national network of partner hospitals and also work in partnership with Nuffield Health, the largest not-for-profit UK healthcare organisation, to offer you the nearest local hospital for your procedure.

You’ll receive your radiotherapy at your local GenesisCare centre.

What happens afterwards?

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

How does it work?

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.

Is SpaceOAR® Hydrogel safe?

SpaceOAR® Hydrogel has been shown in clinical studies to be safe and effective*. It also received positive guidance from the National Institute of Clinical Excellence (NICE) in 2017. With the gel in place, your consultant can target your cancer while reducing the risks of side-effects compared to having radiotherapy without SpaceOAR® Hydrogel.

You may notice some temporary discomfort at the injection site and feel full in the back passage. Both these feelings normally pass quickly. 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)

How SpaceOAR® Hydrogel works

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


SpaceOAR - GenesisCare

Without SpaceOAR® Hydrogel


SpaceOAR | GenesisCare

With SpaceOAR® Hydrogel

Who can benefit from SpaceOAR® Hydrogel?

SpaceOAR® Hydrogel can be used with both internal and external radiotherapy. It’s been used during more than 17,000 procedures worldwide. But SpaceOAR® Hydrogel 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 SpaceOAR® Hydrogel in their clinical practices.

Make an enquiry about SpaceOAR® Hydrogel

Whether you’re in need of treatment or would like more information please complete our enquiry form and we will get back to you – usually within 24 hours.

Make an enquiry

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Little Aston Hall Drive, Sutton Coldfield, B74 3BF

+44 (0)121 353 3055


300 Park Avenue, Aztec West, Bristol, BS32 4SY

01454 456500


The Oaks, Fordham Road, Newmarket, CB8 7XN

+44 (0)1223 907 600


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

+44 (0)1245 987 901

Cromwell Hospital

164-178 Cromwell Rd, Kensington, London SW5 0TU, UK

020 7460 5626


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

+44 (0)208 236 9040


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+44 (0)1483 806 000


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+44 (0)1732 207 000

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+44 (0)1865 237 700


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+44 (0)23 9248 4992


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+44 (0)238 076 4961


69 Alma Road, Windsor, SL4 3HD

+44 (0)1753 418 444