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UK scientists say pioneering research into cystic fibrosis has been delayed by funding problems caused by the economic downturn.

The researchers were hoping to begin a trial later this summer, using gene therapy to try to protect patients' lungs from potentially fatal damage.

They have been shortlisted for a prestigious award medical innovation.

The Cystic Fibrosis Trust says public donations for this type of work have fallen in the tough economic climate.

The Medical Futures Innovation Awards celebrate some of the best ideas for new treatments and help them attract funding.

But that is proving especially challenging at the moment.

The winners will be announced on Monday, but a team in the running, which is looking at pioneering gene therapy for cystic fibrosis (CF), says plans were in place to begin the world's biggest trial of its kind later this summer.

Funding Shortfall

But this has been put back while efforts continue to meet a shortfall of six million pounds.

The UK CF Gene Therapy Consortium has spent 10 years working on a novel way of treating the disease, which is caused by a faulty gene that controls the movement of salt and water through cells.

When this gene fails internal organs become clogged with sticky mucus which attracts infection. Most people with the disease die of chronic lung damage.

The scientists have developed a way of delivering droplets containing healthy genes into the lungs. They have completed initial safety trials, and say the early findings are "hugely encouraging".

However they say problems with funding mean the next trial to test clinical effectiveness will not get under way until March next year at the earliest.

Delay for patients

Professor Eric Alton, who is heading the research, says without further fresh backing the project could disintegrate.

"This project cannot be parked. If we do not get the funding patients will become more unwell. Some will die. A huge amount of hope and effort and science has been invested in this."

The consortium is talking to potential partners from the pharmaceutical industry and has applied for a grant from the National Institute for Health Research.

So far nearly all the £30m funding has come from the Cystic Fibrosis Trust. But the charity has seen a decline in annual public donations from about £10m in 2008, to about £8m now.

It is launching a fresh appeal targeting corporate and wealthy donors to try to meet the shortfall.

The charity's chief executive, Matthew Reed, says it would like to find a commercial partner.

"Cystic fibrosis undermines the quality and length of life This is a really significant moment in the history of the disease. We are very close to a clinical trial to test for efficacy. A lot of people are doing all they can to make it happen," he said.