In this episode, we explore how individualised medicines are evolving from “n=1” treatments (a treatment effective for a single individual) into approaches that could transform care for many people living with rare conditions. Advances in genomic medicine are making it possible to design highly targeted treatments based on an individual’s genetic information. While these therapies may begin as bespoke solutions for a single patient, they can often be adapted, refined or reused to benefit others with similar conditions. While the research is evolving, the systems needed to deliver these treatments at scale are still catching up. From regulation to access, our guests discuss what needs to change to turn this potential into reality. Our host Sharon Jones, is joined by: Ana Lisa Tavares, Clinical Lead for Rare Disease Research at Genomics England Mel Dixon, Participant Panel member and CEO and Founder of Cure DHDDS If you enjoyed today’s conversation, please like and share wherever you listen to your podcasts. “However rare your condition is, someone has a right to have hope. Everybody should have a hope that we should be able to find a treatment.” You can download the transcript or read it below. Sharon: What if treatments once designed for just one person could now help many others? Thanks to advances in genomic medicine, regulations are changing and research is expanding. This opens up more options for treatments for rare conditions. But what does this mean and how close is real change? I'm Sharon Jones, and this is Behind the Genes. We look at how genomics is changing healthcare, covering everything from cutting-edge research to real-life stories. Individualised medicines are a fast-moving area, but there's still a big gap between scientific progress and what's actually happening to patients. You could call it the gap between hype and hope. Ana Lisa: However rare your condition is, someone has a right to have hope. Everybody should have a hope that we should be able to find a treatment. Sharon: Coming up, we'll hear from Ana Lisa Tavares, Clinical Lead for Rare Disease Research at Genomics England, and Consultant in Clinical Genetics at Cambridge University Hospital, as well as Mel Dixon, member of the Participant Panel at Genomics England and CEO and founder of Cure DHDDS. Mel opens this chat by explaining why developments in individualised healthcare really matter to her. Mel: This issue is really personal to me. I have three children, two of whom are affected with an ultra-rare DHDDS gene variant, for which there is currently no treatment. Their condition causes symptoms such as, well, it varies between mild to severe learning difficulties, seizures, tremors, and movement and coordination difficulties. But the, the most worrying thing for us was that this condition is actually also progressive. So over time it becomes more of a Parkinsonism and some patients experience dementia-like symptoms and psychosis. So for us to get a treatment that targets the genetic cause of, of their condition is, like, the most important thing in, in our lives. If we could intervene now, they could potentially, at the stage they're at, you know, live an independent life with, with some supports. But if the disease is left to progress, it would be a very different outcome for them. Sharon: I mean, that sounds so difficult and I can't even imagine how life is for you and your family. And I can see what is driving you to find anything to extend the life of your children and to give them that opportunity to, to have a better quality of life. And then Lisa. Ana Lisa: It's a huge burden for families to carry. And I think at the moment there's an additional layer of burden, which shouldn't fall on families, to feel like they need to forge a pathway for their child to have a chance of a treatment. That's, that's a lot to bear. Mel: I think as well, families feel they almost have to become mini scientists in their children's specific condition overnight, because you go to these appointments with the consultants and nobody's heard of the condition and they don't know, they just don't really know what to do with you. So they're asking you, you know, so tell me about this, this gene change. What, what does it do? What does it mean? So you have to become the mini professor in your child's condition to be able to advocate for them. We've had to really learn on our feet so that we're able to advocate and push for research into DHDDS, because without us doing it, nobody else was going to be. Sharon: Yeah. So that's, you know, that's partly what we're here and what this podcast is for, it's here to support families to, to understand this stuff. And Ana Lisa, can you just break it down to us, what is individualised medicines? Ana Lisa: An individualised medicine that's made for one individual person. In reality, sometimes there are other individuals that can also benefit from the same medicines, and sometimes actually, although the medicine is made for one specific person, it might be made using a strategy that other patients could also benefit from, either directly, exactly the same, even, or through tweaking them so that they could work for a different patient. In the context that they're most often referred to at the moment, they're therapies that are being made based on the genetic information about somebody. Sharon: Thank you. I mean, that sounds amazing. And now coming to you, Mel, what does receiving a diagnosis mean for a family? And how do you navigate the space between finally having answers and the reality that the treatment may not yet exist? Mel: So for us, I think, we went down the, the diagnostic route in the hope that we would be able to find a treatment for our children, or there would already be a treatment in place. But unfortunately when we got their diagnosis, we were told that their, their condition was ultra rare, neurodegenerative and also newly discovered. So there was, there was no treatment pathway and actually minimal research happening into it at the time. So it was frustrating, upsetting, um, and it felt like quite a hopeless situation at the start, but actually this was just over three years ago. And through a lot of proactiveness on our part in fundraising, we've been able to better understand the condition and we now have treatments in the pipeline. So in that three-year window, from there being nothing, we now have treatments both in terms of potential drug repurposing candidates and also, um, an individualised therapy called an ASO is also in development for them. So it was hard, but it's given huge benefit to us. Otherwise, we'd just be going, remaining going from specialist to specialist without having any answers or understanding why their symptoms were progressing. Sharon: I mean, that sounds really, really tough and you know, coming back to you, Ana Lisa, could you talk us through how genomics is changing the way we can treat rare conditions? You know, what types of individualised medicines now exist and how do they even work? Ana Lisa: Maybe I'll start with how some of these medicines are working. So with, without going into details, but the sort of principle that these medicines might be able to, to do something called gene editing. So our, our DNA, uh, the instruction manual is made up of genes and it's now can be possible scientifically to change even a single DNA letter code in somebody to try and ameliorate the symptoms of their rare condition. You know that's phenomenal scientific progress to be able to do that. I think a lot of people have heard about gene therapy, where one is trying to get into the body a gene or part of a gene that might be able to sort of replace the function of a gene that isn't working as it should. There are various other strategies. So our DNA is actually used to send messages to our body, if you like, to, to decode these instructions. And so there are medicines that target the next step in this process, the RNA, which are the ASO therapies that Mel was referring to earlier. And really what those are doing are either trying to correct for a protein in our body that isn't working as it should, or to try and get rid of one that shouldn't be there. And so they can act in different ways. And that's actually quite powerful, because you can, theoretically, use these strategies to correct for different genetic rare conditions. So I think going to the sort of first part of your question, maybe if I can phrase it as "directly at source". If you can go upstream and target in a very direct way the cause of a rare condition, then actually you might be able to apply those same principles to many different types of rare condition. We know that there are, you know, 8,000 as a very ballpark number of rare conditions, and it might be that these strategies could be used I don't want to say for all rare conditions, but for many rare conditions where we find the genetic cause, these strategies could collectively be a very powerful way to treat them. And traditionally we've had to understand all the underlying biology, find a druggable target, find a drug that could target that, that's safe, effective, et cetera. And that's a lot of work. And that's still very, very valuable. If we were going to do this for these thousands of conditions, it would probably take us hundreds to thousands of years, collectively. And these strategies provide a lot of hope for being able to do this in a, in a more efficient way, where we can actually use the information used to treat one rare condition and apply those learnings to another rare condition. Sharon : I mean, that's really helpful to understand. So if the science is there, why aren't more patients benefiting from it yet? You know, what's standing in the way from your perspective? Ana Lisa: That's a really good question, and it's complex because the, our whole ecosystem i