\n<\/p>\n
Huntington\u2019s disease, a devastating degenerative illness that runs in families, has been treated successfully for the first time in a breakthrough gene therapy trial.<\/p>\n
The disease, caused by a single gene defect, steadily kills brain cells leading to dementia, paralysis and ultimately death. Those with a parent with Huntington\u2019s have a 50% chance of developing the disease, which until now has been incurable.<\/p>\n
The gene therapy slowed the progress of the disease by 75% in patients after three years.<\/p>\n
Prof Sarah Tabrizi, the director of University College London\u2019s Huntington\u2019s disease centre, who led the trial, said: \u201cWe now have a treatment for one of the world\u2019s more terrible diseases. This is absolutely huge. I\u2019m really overjoyed.\u201d<\/p>\n
The drug, which inactivates the mutant protein that causes Huntington\u2019s, is delivered to the brain in a single shot during a 12- to 20-hour surgical procedure, meaning that it will be expensive. The breakthrough is sending ripples of hope through the Huntington\u2019s community, many of whom have witnessed the brutal impact of the disease on family members.<\/p>\n
The first symptoms, which typically appear in your 30s or 40s, include mood swings, anger and depression. Later patients develop uncontrolled jerky movements, dementia and ultimately paralysis, with some people dying within a decade of diagnosis.<\/p>\n
With treatment, people will be able to work and live independently for significantly longer, Tabrizi said, and the dramatic impact of the therapy raises the possibility that it could prevent symptoms occurring if given at an earlier stage.<\/p>\n
It is estimated that there are between 6,000 and 10,000 people with Huntington\u2019s disease in the UK, and at least another 20,000 who are carriers of the faulty gene, meaning they are likely to develop it. However, only about a fifth of those in families affected by Huntington\u2019s choose to test for the gene because current treatments only help with symptoms rather than slowing the disease\u2019s relentless progression.<\/p>\n
\u201cNow I think many more people will come forward for the genetic test because there\u2019s a treatment,\u201d said Tabrizi.<\/p>\n
The mutant Huntington\u2019s gene contains instructions for cells to make a toxic version of a brain protein, called huntingtin. The therapy is delivered via a harmless virus that has been modified to deliver a specifically designed strand of DNA into neurons.<\/p>\n
To avoid adverse reactions, the virus is infused very slowly through a micro-catheter into two separate brain regions, a complex procedure that takes 12 to 20 hours. Once the DNA is delivered into the neurons, it instructs the cells to block the production of the toxic version of huntingtin.<\/p>\n
Results from the trial, involving 29 patients treated in the UK and US, have been released by the company uniQure, although the full details are yet to be published. Three years after treatment, those on the high dose of the drug had an average of 75% slowing of the progression of the disease, based on tests of motor function, cognition and the patients\u2019 experience of day-to-day life.<\/p>\n
There were also clear indicators in the brain that neurons were being spared, with levels of neurofilaments (a sign of cell death) being significantly lower in the treatment group.<\/p>\n
\u201cWe are incredibly excited about these topline results and what they may represent for individuals and families affected by Huntington\u2019s disease,\u201d said Walid Abi-Saab, the chief medical officer of uniQure, adding that the company hopes to submit the drug for approval in the US early next year.<\/p>\n","protected":false},"excerpt":{"rendered":"
Huntington\u2019s disease, a devastating degenerative illness that runs in families, has been treated successfully for the first time in a breakthrough gene therapy trial. The disease, caused by a single gene defect, steadily kills brain cells leading to dementia, paralysis and ultimately death. Those with a parent with Huntington\u2019s have a 50% chance of developing<\/p>\n","protected":false},"author":1,"featured_media":23489,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[55],"tags":[4391,1406,14329,10967,628,286,4050,2131],"class_list":{"0":"post-23488","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-social-issues","8":"tag-disease","9":"tag-gene","10":"tag-huntingtons","11":"tag-successfully","12":"tag-therapy","13":"tag-time","14":"tag-treated","15":"tag-trial"},"_links":{"self":[{"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/posts\/23488","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=23488"}],"version-history":[{"count":0,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/posts\/23488\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/media\/23489"}],"wp:attachment":[{"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=23488"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=23488"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=23488"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}