Experimental drug offers hope for improving movement symptoms of Parkinson's

Experimental drug offers hope for improving movement symptoms of Parkinson's

Results from a study looking at an experimental drug to tackle the debilitating side effect of dyskinesia, have offered hope that it may have potential as a future treatment for people with Parkinson's. Research carried out by US biotech company Neurolixis with funding from Parkinson's UK, investigated the effect of the drug NLX-112 on dyskinesia, a common side effect experienced by people with Parkinson's who have been taking levodopa-based medications for several years. It causes involuntary movements that can affect various parts of the body, making everyday tasks impossible. The main medication available to manage dyskinesia is amantadine, which can have side effects and does not work for everyone. Around half (40 to 50 per cent) of all people with Parkinson's will experience dyskinesia after just five years of taking levodopa, and up to 80 per cent of people will experience it after ten years of taking the medication. NLX-112 works by targeting serotonin cells inside the brain which are believed to contribute to the development of dyskinesia, by releasing dopamine in an erratic manner. It aims to reduce dyskinesia by decreasing the amount of dopamine the cells release. In this study, NLX-112 was tested in marmosets with Parkinson's-like symptoms. The marmosets had developed the side effect of dyskinesia in response to levodopa treatment in a similar way to many people with Parkinson's. The study looked at the effect of NLX-112 both on its own and in combination with levodopa, to understand how it impacted both dyskinesia and Parkinson's symptoms. The results showed that NLX-112 successfully reduced dyskinesia and crucially, did not significantly reduce the effectiveness of levodopa, which many other similar drugs do. When NLX-112 was used on its own (without levodopa), it again improved movement problems. These promising results published online in Neuropharmacology , suggest that NLX-112 has potential as a future treatment for not only reducing dyskinesia, but also for improving the movement symptoms of Parkinson's. The one-year project was funded through the Parkinson's Virtual Biotech, led by charity Parkinson's UK, which is plugging the funding gap in drug development and fast-tracking the projects with the greatest scientific potential, to transform the lives of people with Parkinson's. Dr. Arthur Roach, Director of Research at Parkinson's UK, said: This promising research on NLX-112 offers hope that we can find a treatment that can tackle dyskinesia, which can make everyday tasks, such as eating, writing and walking, extremely difficult. People with Parkinson's tell us it is one of the most critical issues that impacts quality of life so we're delighted that this project is progressing so positively. With 145,000 people living with Parkinson's in the UK, we are desperately in need of a breakthrough treatment and we're committed to delivering one by 2024. It is vital we continue to work with biotech companies like Neurolixis to drive forward new treatments that may slow, stop or reverse Parkinson's and also those, like NLX-112, that could bring relief from symptoms or side effects." Adrian Newman-Tancredi, Ph.D., co-founder and Chief Executive Officer at Neurolixis, said: We are excited that NLX-112 has shown such positive results in reducing dyskinesia in marmosets. If the striking preclinical data are reproduced in clinical trials, NLX-112 could significantly alleviate the troubling dyskinesia that prevent many Parkinson's patients from performing routine daily tasks, thereby improving their quality of life. We are currently making plans and seeking funding to take NLX-112 into clinical trials and hope to be able to initiate these before the end of 2020. We're hugely grateful for the funding from the Parkinson's Virtual Biotech which has helped us complete the essential final experiments and preparations to get us to this crucial point." Related Stories



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