New research, led by the Centre for Eye Research Australia and the University of Melbourne, published in Gene Therapy, reveals the results of the first national survey asking Australians living with inherited retinal disease (IRD) and their carers about their knowledge and views on gene therapy.
IRD is the umbrella term for a broad group of genetic eye conditions – including retinitis pigmentosa and Stargardt’s disease – that causes progressive vision loss and blindness. They are the most common cause of blindness in working-age Australians, affecting more than 13,000 people nationally.
The new study, led by Associate Professors Heather Mack and Lauren Ayton, provides new insight into patients’ knowledge of emerging gene therapies, the methods used, their willingness to undergo future treatments, and their views on the potential costs and logistics.
Associate Professor Ayton said: “Until recently, someone diagnosed with an IRD would be told their condition was incurable and advised to prepare for a life of progressive, irreversible vision loss. But rapid advances in gene therapy are for the first time offering the potential of treatments that will stall, or even reverse vision loss. There is now an approved gene therapy for a rare form of retinitis pigmentosa and there are multiple clinical trials of gene therapies for other genetic eye conditions underway around the world. It’s essential that patients have the information they need to make informed choices in the future.”
An estimated five per cent of Australians with IRD, almost 700 people, completed the survey. Key findings included:
Associate Professor Mack said the findings demonstrated the need for continuing targeted education about the outcomes and risks of gene therapy and the difference between clinical research and approved treatments. “Education of both patients and eye care professionals will be critical to fill knowledge gaps and a lack of confidence in understanding treatment options,’’ she said. “This will require continually evolving education of both potential recipients of gene therapy and eye care providers as new technologies and treatments are rolled out.’’