Illustration: John Spooner

One of the joys for those who work in the health services area is bringing relief to patients from chronic conditions.

And as the level of desperation rises, some patients will pay over the odds for treatment, pursing unproven options in the hope of some improvement in their condition. And where there is unmet demand, supply soon steps in to fill the gap.

Last year, there was intense global media attention on stem cell treatments following a paralysed patient in Poland who walked after a cell transplant, a project involving Polish and UK researchers.

Stem cells may well offer significant potential promise for patients in a range of treatments. But to date, much of that optimism has run well ahead of the reality.

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Clinical trials to ensure the efficacy and safety of medical treatments is slow and laborious, taking several years, at the very least, to verify the merits of a treatment before then seeking approvals to offer the treatment to patients.

But for those searching for a stem cell treatment in Australia, there is a loophole: a referral from your doctor is often all it takes to get access, even though there is scant proof that the patient benefits.

Clearly, some patients so badly want to believe the treatment is good for them that this will override the necessary caution.

Much of this activity is taking place in private clinics, although sharemarket investors, too, have stem cell groups they can invest in.

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Optimism on stem cells, ahead of reality