Enlli McAleese (@EnlliMcA) header
Enlli McAleese (@EnlliMcA) profile picture

Working on regulatory policy for equitable access to medicines. Previously regulatory director @1daysooner & regulatory policy @DHSCgovuk.

Joined June 2019
Photo by Enlli McAleese (@EnlliMcA)Photo by Enlli McAleese (@EnlliMcA)Photo by Enlli McAleese (@EnlliMcA)Photo by Enlli McAleese (@EnlliMcA)Photo by Enlli McAleese (@EnlliMcA)
It was a pleasure working with @asteriskmgzn on this piece, which looks at a case study where regulatory reliance works well. Thank you @chengela and @clarabcollier for making the editing process wonderful!
Zambia approved a new HIV drug in just 12 days, far outpacing the average of 4-7 years in sub-Saharan Africa. How did they do it? Most countries spend years reviewing drug applications that have already been approved by the FDA or EMA. Zambia decided to do things differently, building a system that treated prior approvals from trusted agencies as a starting point. @EnlliMcA dives into Zambia’s process, and what we can learn from their experience:
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We have two new updates to our dataset of all African National Medicines Regulatory Authorities! It now covers WHO Collaborative Registration Procedure (CRP) participation and Burkina Faso’s new agency, Faso FDA: ubiquitoushealth.org/researc…
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Timely @WorksInProgMag article in light of WHO’s ongoing public consultation on a proposed pilot for a Quality Assurance Mechanism for the assessment of Modified Mosquito Production. The public comment period is open until 30 October: extranet.who.int/prequal/vec…
There is no good reason for mosquitoes to exist in wealthy countries today. New technologies can get rid of the mosquito species that cause diseases like dengue, yellow fever, and malaria; and others can prevent them from carrying those diseases. worksinprogress.co/issue/mos… So why do mosquitoes still exist? In a new article for Works in Progress, Maya Rosen explains how state incapacity and risk aversion led to over a decade of delays and billions of unnecessary bites in the United States. Oxitec, for example, engineered an Aedes aegypti mosquito in such a way that its female offspring would die before adulthood. Through sustained releases, they showed they could reduce local mosquito populations by 80% or more, in field trials. They sought approval from the USDA in 2010, which then passed it to the FDA, which passed it to the EPA. In 2020, the EPA allowed them to conduct limited field trials in the Florida Keys. Two years ago, their experimental permit expired, and they still need another review before it can be used routinely. Their proposed field trial in California was withdrawn after public opposition. Another company, MosquitoMate, developed a technique involving Wolbachia, which also suppresses local mosquitoes. They then spent over fifteen years working through the system before finally receiving commercial registration nationwide in 2024. It seems that, sometimes, the barrier to getting rid of diseases isn’t technology at all. It’s policy and political will. New products shouldn’t get stuck in regulatory review for so long, especially if the delays are about basic questions like which agency has oversight over the product, rather than testing for safety. Though some of those uncertainties were being addressed, the broader changes haven’t materialized. After Biden’s 2022 executive order, the agencies planned to update how their coordinated framework was implemented. But Trump rescinded the order last year. Meanwhile, the EPA unit that reviews new mosquito control products is still a small office backlogged in reviewing a wide range of products. Mosquitoes are a policy choice. We can get rid of them. Will we choose to? worksinprogress.co/issue/mos…
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Enlli McAleese retweeted
Can we switch off diseases? siRNA drugs are, in my view and @JacobTref’s too, one of the most exciting developments in medicine. So we decided to do an episode! It’s a technology that can ‘silence’ harmful genes in the body. And there are lots of cases where you might want to silence genes: - Infectious diseases, where you can silence pathogen proteins or human proteins that pathogens depend on - Rare genetic diseases, where you can silence the production of mutated proteins - Cardiovascular diseases, by silencing proteins that raise cholesterol - Cancers, by silencing proteins that help tumour cells grow, survive, metabolize, metastasize, or resist treatment - and more! What’s even better is that siRNA drugs are: • Potentially tunable, meaning you could reduce the production of a protein, rather than silencing it entirely • Programmable, meaning you can quickly switch out which gene it targets by changing its sequence • Long-lasting: some drugs last for months, even half a year, with a single injection • Off-the-shelf: they typically don’t involve complicated surgeries or procedures, because of the way they’re delivered in the body Today, siRNA drugs are largely used to treat liver diseases, partly because that’s the easiest starting point. And they are extremely effective at it. One example is as a cholesterol drug: siRNAs can reduce PCSK9 levels by around 70%, reducing cholesterol levels by 50-60%, beyond the effect of statins. But we think it’s just a matter of time before they can be used to target other organs too. Will siRNA treat diseases of other organs? And what’s the catch? Listen to our latest episode of HARD DRUGS to find out! Chapters: 00:00 Introduction 09:58 siRNA trivia 28:14 The 20 year journey to make siRNA drugs 36:07 Which diseases could siRNA treat? 50:45 Programmable, long-lasting, scaleable drugs 54:32 The limits of siRNA 1:08:23 Conclusion
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Enlli McAleese retweeted
There is no good reason for mosquitoes to exist in wealthy countries today. New technologies can get rid of the mosquito species that cause diseases like dengue, yellow fever, and malaria; and others can prevent them from carrying those diseases. worksinprogress.co/issue/mos… So why do mosquitoes still exist? In a new article for Works in Progress, Maya Rosen explains how state incapacity and risk aversion led to over a decade of delays and billions of unnecessary bites in the United States. Oxitec, for example, engineered an Aedes aegypti mosquito in such a way that its female offspring would die before adulthood. Through sustained releases, they showed they could reduce local mosquito populations by 80% or more, in field trials. They sought approval from the USDA in 2010, which then passed it to the FDA, which passed it to the EPA. In 2020, the EPA allowed them to conduct limited field trials in the Florida Keys. Two years ago, their experimental permit expired, and they still need another review before it can be used routinely. Their proposed field trial in California was withdrawn after public opposition. Another company, MosquitoMate, developed a technique involving Wolbachia, which also suppresses local mosquitoes. They then spent over fifteen years working through the system before finally receiving commercial registration nationwide in 2024. It seems that, sometimes, the barrier to getting rid of diseases isn’t technology at all. It’s policy and political will. New products shouldn’t get stuck in regulatory review for so long, especially if the delays are about basic questions like which agency has oversight over the product, rather than testing for safety. Though some of those uncertainties were being addressed, the broader changes haven’t materialized. After Biden’s 2022 executive order, the agencies planned to update how their coordinated framework was implemented. But Trump rescinded the order last year. Meanwhile, the EPA unit that reviews new mosquito control products is still a small office backlogged in reviewing a wide range of products. Mosquitoes are a policy choice. We can get rid of them. Will we choose to? worksinprogress.co/issue/mos…
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Enlli McAleese retweeted
🇨🇩 #DRC: A research vaccination programme has been launched in Ituri for health workers and other frontline personnel at increased risk of #Ebola exposure. 20,000 doses of ERVEBO are planned as part of the #BRAVO study, led by @MinSanteRDC with scientific oversight from @inrb_kinshasa, implemented with @MSF and supported by @WHO, @AfricaCDC and other partners. The aim is to advance knowledge on the use of the vaccine against the Bundibugyo virus while helping protect those most exposed. The initiative is part of 70,000 doses of ERVEBO made available to the DRC to support the outbreak response and related research.
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Enlli McAleese retweeted
Happy Friday! Iʼve created a game for you to play! Will AI cure all diseases in 10 years? Inspired by bottlenecks discourse, I created a game to help build your intuitions. Play it here: game.clinicaltrialsabundance… Naturally, it’s bottle-themed with bubbles and there are leaderboards too.
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i really liked this piece by @EnlliMcA on how Zambia used regulatory reliance to approve a new HIV drug in just 12 days. it’s also a good reminder of why we should pay more attention to public institutions in LMICs. asteriskmag.com/issues/15/ho…
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Enlli McAleese retweeted
The clinical trials abundance blog has a new member! It's @EnlliMcA and she has a really cool new post today about a tool she built. It helps navigate the many regulatory pathways to get new drugs approved in lower and middle income countries. Those choices can affect whether countries get access to medicines at all, or how fast they get approved. This tool is meant to help drug developers, funders, researchers and policymakers aiming to navigate or improve drug approval pathways. clinicaltrialsabundance.blog…
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Enlli McAleese retweeted
We're back! Issue 2 launches with reader responses to issue 1: indevelopmentmag.com/letters… New articles start next week.
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The Democratic Republic of the Congo has approved the use of a new single-dose oral treatment for sleeping sickness, a potentially fatal disease which is endemic in several countries in Central and West Africa. ghtcoalition.org/blog/resear…
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Enlli McAleese retweeted
The Gates Foundation believes strong medical product regulators on the African continent will lead to greater access to lifesaving products. It's supporting both national regulators and the African Medicines Agency: devex.com/news/the-gates-fou…
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In light of current efforts towards a Bundibugyo Ebola vaccine, here's an overview of the approval pathway of the first Ebola vaccine against the Zaire strain, which may offer lessons for the current outbreak. open.substack.com/pub/enllim…
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