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Friday, November 4, 2022

Lawmaker calls for new action to scrutinize cancer drug launch prices

 The Biden administration’s Inflation Reduction Act (IRA) is putting the reins on how fast drug prices in Medicare can rise without penalties, but it doesn’t control the sticker when a drug initially enters the market. Now, one lawmaker is calling for new measures to close that loophole.

In order to maximize the IRA’s power in lowering drug prices, “policymakers must focus on the next challenge: soaring launch prices,” Rep. Katie Porter of California said in a report released Wednesday. “Bringing down the prices of newly introduced drugs will make the IRA’s policies even more effective.”

Porter was one of the lawmakers who spearheaded the crackdown on Big Pharma’s price hikes in the IRA. Her new report (PDF) focuses on how launch prices of cancer drugs have changed over the years and how new legislation could target rising prices. Cancer is more common among older Americans and is therefore a key part in Medicare coverage, she noted.

Between 2017 and 2021, the inflation-adjusted launch prices for self-administered cancer drugs—which are typically covered under Medicare Part D—increased by 25.8%, according to Porter’s analysis. The average launch price of cancer drugs that are infused by healthcare professionals jumped even more—53%—in the past five years, Porter’s report shows.

The median launch price of self-administered oncology drugs in 2021 was $232,788, up from $188,842 in 2017, Porter's report found. During the same period, the average annual list price for infused cancer drugs rose to more than $283,000, from about $185,000.

Porter’s analysis mirrors findings from a recent IQVIA report, which showed that the number of new cancer drugs that cost more than $200,000 a year is growing fast. Those expensive therapies account for a third of the class in the past five years, versus just 2% in the five years leading up to 2016.

If the trend continues, the average cancer drug launch price will reach about $325,000 per year for self-administered products and more than $525,000 for infused meds by 2026, when Medicare will start to be able to negotiate drug prices under the IRA, Porter predicts.

In measures that are widely lamented by the biopharma industry, the IRA will give the HHS power to directly negotiate prices on drugs that cost Medicare the most, starting with 10 Part D therapies in 2026 and expanding to 20 Part B and Part D drugs in 2029. Among the 10 costliest Medicare Part D drugs in 2020, three were cancer therapies: Bristol Myers Squibb’s Revlimid, AbbVie and Johnson & Johnson’s Imbruvica, and Pfizer’s Ibrance.

But as Porter noted, among the top ten drugs by overall expenses, noncancer drugs such as diabetes and cardiovascular treatments on average reach more than 985,000 patients, compared with just above 30,000 for cancer drugs.

The new law also requires that drugmakers pay rebates if their Medicare prices rise faster than inflation.

“However, inflation rebates alone may not completely solve the problem of excessive drug prices if pharmaceutical manufacturers continue increasing the launch prices for new products,” Porter said in her report.

The biopharma industry has called the new measures “price controls.” Because the law gives small-molecule drugs a shorter, 9-year post-approval window before they can be considered for price negotiation, compared with 13 years for biologics, the industry has also argued that the IRA will hurt innovation, especially for small molecules, which are typically self-administered.

When the IRA was progressing through Congress, some industry experts noted that drugmakers could jack up launch prices to counteract the price-hike clause. But others disagreed, arguing that if biopharma companies could further raise list prices, they would have already done so.

Still, even if biopharma companies don't hit the gas on launch prices to counteract the IRA, the current trend itself is already alarming enough, Porter said.

“Unless Congress expands negotiation authority or reins in launch prices, it is possible that any savings achieved through limited price negotiation would be threatened by excessive launch prices for new drugs,” Porter said.

Regulating launch prices would be far more complicated than managing price increases. Many factors are at play in determining a drug’s price, such as addressable patient population, R&D costs and manufacturing complexity. On the flip side, the inflation rate can be a simple solution to monitoring incremental price jumps.

Porter proposes several measures to keep launch prices under control. Citing similar setups in the U.K., Germany and Switzerland, Porter recommends establishing a national drug pricing review board to suggest drug prices based on clinical benefits. Limiting the launch prices for drugs cleared under the accelerated approval pathway and tying government investments in R&D to price guarantees are also among her policy proposals for Congress.

https://www.fiercepharma.com/pharma/fix-ira-loophole-lawmaker-calls-new-action-scrutinize-cancer-drugs-launch-prices

CEOs of BioNTech, Bayer, Merck KGaA join German Chancellor in high-profile China visit

 


 In the first visit by a G7 leader to China since the pandemic started, German Chancellor Olaf Scholz has led a business delegation to the country. CEOs of biopharma titans Bayer, BioNTech and Merck KGaA are among the 12-person team of industry leaders to make the trip.

Bayer’s Werner Baumann, BioNTech’s Ugur Sahin and Merck KGaA’s BelĂ©n Garijo joined Scholz on the one-day visit Friday. No major investment deals have come out of the high-profile trip.

The only notable agreement is that China will allow foreigners in the country to receive BioNTech’s COVID-19 vaccine Comirnaty. The vaccine is already being sold in China’s special districts of Hong Kong, Macau and Taiwan.

Scholz made the announcement during a joint press briefing with Chinese Premier Li Keqiang. Calling the agreement “a first step,” Scholz said he hopes the “circle of eligible persons can soon be widened” to make the BioNTech shot available to the general public, Reuters reports.

“We are committed to supply the people on the Chinese Mainland with our COVID-19 vaccine upon approval as part of our global supply strategy and long-term commitment to China, which is a strategically important market for us,” a BioNTech spokesperson said in a statement to Fierce Pharma.

BioNTech partnered with Fosun Pharma on Comirnaty in a pact signed in early 2020. Reports initially suggested that the shot would be approved in China last July at the latest. But China still hasn’t allowed a single foreign-made COVID shot for the mainland.

Last month, the Financial Times reported that Moderna’s negotiations to bring its mRNA vaccine to China had fallen through after the U.S. company refused to transfer its core intellectual property to the country. This revelation led to speculation that BioNTech might be facing a similar dilemma.

In a Friday statement, a BioNTech spokesperson declined to comment on details of potential or actual discussions Sahin would have during his visit in China. The company directed the question about COVID vaccine’s status to Chinese regulators.

As for Bayer and Merck KGaA, the two legacy German powerhouses were among the earliest life sciences companies to enter China, each with about a century of history operating in the country. Merck KGaA’s Garijo was leading the company’s biopharma division when the company made hefty investments in its Nantong pharma manufacturing facility near Shanghai in the 2010s.

Merck’s KGaA was also one of the few foreign biopharmas that significantly doubled down on Chinese operations during the pandemic. In April, the company’s life science CDMO business, MilliporeSigma, unveiled a plan to invest 100 million euros to expand its existing WuXi production site to significantly increase the biopharma's single-use assemblies and custom-design capabilities to support the production of COVID vaccines and other therapies.

The WuXi expansion runs alongside a separate commitment in which Merck KGaA plans to spend more than 1 billion Chinese yuan by 2025 on its electronic business in China.

Merck KGaA didn’t respond to a Fierce Pharma request for comment on Garijo’s China visit.

Meanwhile, Bayer is celebrating its 140th anniversary in China. The company’s pharma business recently took heavy hits from China’s volume-based procurement program and generics. The country’s price-cut scheme targeting off-patent drugs almost single-handedly dragged Bayer’s top-selling drug, blood thinner Xarelto, to a sales decline this year.

On the flip side, Bayer has introduced new therapies like Kerendia for chronic kidney disease and Verquvo for heart failure to China. The company’s partner Hua Medicine just received a first-in-class approval in China for diabetes drug dorzagliatin.

“We are convinced that the main issues of our time—from climate protection to food security—can only be solved through dialogue and collaboration with key global actors such as China,” a Bayer spokesperson said in a statement to Fierce Pharma. “We therefore welcome German government’s initiative to seek personal talks with the Chinese government, directly addressing the challenges that currently exist in the relationship with China.”

Commenting on Bayer’s participation in the annual China International Import Expo that’s slated to start Saturday in Shanghai, Baumann said Bayer has proudly been a part of China’s development and progress.

https://www.fiercepharma.com/pharma/ceos-biontech-bayer-merck-kgaa-join-german-chancellor-scholz-high-profile-china-visit

Pa. Taxpayers Have Paid $16 M For Childhood Sex Reassignment Treatments

 by Beth Brelje via The Epoch Times (emphasis ours),

Switching genders is expensive. But low-income children in Pennsylvania are covered under medical assistance through the Children’s Health Insurance Program (CHIP).

Pennsylvania taxpayers have unknowingly paid more than $16 million under Democrat Gov. Tom Wolf’s administration to fund sex reassignment and gender transition services for children.

Each year since 2015, when Wolf took office, state spending on childhood sex change treatments has increased, data obtained by the Pennsylvania Family Institute shows.

In 2015, Pennsylvania paid $78,000 for services related to sex reassignment for children under 18. In 2021, the state spent $3.9 million.

The Pennsylvania Department of Human Services (PA DHS) provided data to the Pennsylvania Family Institute through a Right to Know request seeking records reflecting the amount of money Pennsylvania has spent for minors through CHIP to receive “services related to sex reassignment and transition related services and drugs, from 2015 to present.”

“This level of state-endorsed harm upon children is reprehensible,” Alexis Sneller of the Pennsylvania Family Institute said in a statement. “While we knew the Wolf administration was funding services related to these irreversible procedures on minors, now seeing the exact numbers–millions spent towards these detrimental acts—is still shocking.”

Taxpayer Funded Treatments

The data includes basic codes and descriptions for each treatment, but it’s unclear how many treatments were used for each patient, so the total number of minors who received the medications and procedures is unknown.

Treatments listed in the data include androgenic agents, which are used in the transition from female to male; and estrogenic agents, which are feminizing hormones powerful enough to cause a male to develop breasts.

Some girls were given Yuvafem, a vaginal insert tablet used to reduce symptoms of menopause, and Estring, another menopause insert in the form of a flexible ring that continuously releases estrogen. The Estring safety indications include a warning that using the product may increase the chance of developing dementia, and that estrogens should be used at the lowest dose possible and only for as long as needed.

Many treatments are hormones in the form of gels, creams, patches, and pills normally used for women in menopause and post-menopause. Others are testosterone replacements, normally used in men who don’t make enough on their own.

All are being prescribed for off-label use.

“Since no drugs are specifically for sex reassignment or transition related services, pharmacy claims were only included where the recipient had a previous gender identity disorder diagnosis or personal history of sex reassignment diagnosis within the specified service dates,” the PA DHS said in a note included in the answer to the Right to Know request. “Data is limited to recipients aged 18 and younger.”

The data is from Jan. 1, 2015, to Oct. 21, 2022.

Homeless Kids Get Gender Treatment

During a Pennsylvania House Health Committee hearing, Children’s Hospital of Philadelphia’s (CHOP) gender clinic co-founder Nadia Dowshen testified that her clinic receives referrals from foster care and homeless shelters.

We’re really getting referrals from a variety of resources,” Dowshen testified. “We’re getting a lot more referrals from institutions and other youth serving professionals working with youth in other capacities, sometimes from within the foster care system, or the mental health system, or through homeless shelters for youth who are in need of support.”

In another presentation, Dowshen praised Dr. Rachel Levine, calling the former Pennsylvania secretary of health “a wonderful advocate … doing amazing work to make sure young people have coverage of these medications.”

Levine is a transgender individual who served in Pennsylvania until President Joe Biden appointed Levine as assistant secretary of the U.S. Department of Health and Human Services. Levine is a former professor of pediatrics and psychiatry at the Penn State College of Medicine and a longtime advocate of “gender affirming care,” which includes puberty blockers, hormone treatments, and surgeries with life-altering consequences for children and adolescents who want to change their bodies and live as the opposite sex.

https://www.zerohedge.com/medical/pennsylvania-taxpayers-have-paid-16-million-childhood-sex-reassignment-treatments

Florida medical boards vote to ban gender-affirming care for transgender youth

 Florida’s medical boards on Friday finalized a rule to ban gender-affirming health care including puberty blockers, hormone therapy and surgeries for transgender youth as treatment for gender dysphoria.

Members of the Florida Board of Medicine and the state Board of Osteopathic Medicine at Disney Springs in Lake Buena Vista, Fla., voted to adopt a rule preventing minors from accessing gender-affirming care despite guidance from leading medical organizations that the treatment is medically necessary.

The new decision will not apply to transgender youth already receiving treatment.

The two boards, however, did disagree on whether nonsurgical treatments for gender dysphoria may continue through Institutional Review Board-approved clinical trials. While the Board of Osteopathic Medicine approved the rule, the state Board of Medicine rejected the proposal.

Most public testimony opposed the adoption of the new rule, though members of the public acknowledged that they were not expecting their positions to be taken seriously by the boards in what LGBTQ advocates have likened to a kangaroo court and called a “sham” hearing.

“I know you guys aren’t gonna listen to anything I say, which is why we didn’t email you. We didn’t waste our time,” Sarah Parker, president of the group Women’s Voices of Southwest Florida, said during the meeting.

Parker spent the remainder of her allotted time reading off contributions made by each board member – all of whom have been appointed by Gov. Ron DeSantis (R) – to the governor’s campaign and political committee. The contributions totaled more than $80,000, according to a Tampa Bay Times analysis.

DeSantis has been a vocal critic of gender-affirming health care for minors and said in August that physicians who provide gender-affirming care to transgender youth are “disfiguring” children and should be sued.

Nikole Parker, the director of transgender equality at Equality Florida, an LGBTQ poltical advocacy organization, said in a statement following Friday’s vote that board members in approving the rule have put “toxic politics over people’s health and wellbeing.”

“With young lives on the line, another state agency has placed the political ambitions of Ron DeSantis over its duty to protect Floridians,” Parker said. In April, Florida’s Health Department released guidance that said gender-affirming health care including social transition should not be accessible to youth under 18.

That guidance was used by the state’s Agency for Health Care Administration (AHCA) to enact a rule in August that prohibits transgender Floridians from using Medicaid to cover the cost of puberty blockers, hormones, gender-affirming surgeries or “any other procedures that alter primary or secondary sexual characteristics” when those procedures are used to treat gender dysphoria.

Similar policies in other states including Arkansas and Alabama have been blocked by court orders.

Once the rules finalized Friday are posted online, an additional hearing may be requested, which LGBTQ advocacy groups including Equality Florida have indicated they will petition for. 

If that request is denied, a 21-day period will begin in which members of the public can submit written comments before a final, procedural vote by both medical boards.

https://thehill.com/blogs/blog-briefing-room/news/3720315-florida-medical-boards-vote-to-ban-gender-affirming-care-for-transgender-youth/

Blood vessel genes play critical role in motor neuron development

 When neurons involved in movement -- called motor neurons -- form, they must build connections that reach from the brain, brainstem, or spinal cord all the way to the head, arms, or the tips of the toes. How neurons navigate these systems and "decide" where and how to grow has largely been a mystery.

Now, a new collaborative study between Salk Institute scientists and colleagues at the San Raffaele Scientific Institute in Italy show how blood vessel genes play a critical role in motor neuron development by telling blood vessels to get out of the way.

The findings, published October 7, 2022 in the journal Neuron, provide a new understanding of how a "push-pull" relationship with blood vessels -- in which growing neurons both attract blood vessels to them while also pushing them out of the way -- guides the growth and development of motor neurons and, potentially, a wide variety of cell types throughout the body. The discovery also has implications for understanding diseases in which motor neuron connections are destroyed, such as amyotrophic lateral sclerosis (ALS) or spinal muscular atrophy (SMA).

"This discovery reveals a set of molecular and cellular interactions that had not been understood before," says co-corresponding author Samuel Pfaff, professor in the Gene Expression Laboratory and holder of the Benjamin H. Lewis Chair at Salk. "Our discovery of how these genes regulate blood vessel growth and neuron development has implications that range from understanding how other brain circuits form to even understanding how cancer cells interact with their environment."

Motor neuron connections are formed during fetal development. This process of wiring the nervous system is exquisitely precise, with cells making trillions of connections that reach throughout the body. And yet the genetic process that directs this development is still poorly understood.

Prior research has focused on the role of specific genes directly related to motor neurons and how they grow. But for this study, scientists took a bigger-picture approach, looking at genes both within and outside of the nervous system.

The researchers randomized genetic mutations in mice and closely examined the animals' developing motor neurons. To their surprise, they found that the mice whose motor neurons were not growing correctly had mutations that affected not the nervous system but the vascular system, which includes blood vessels.

In healthy mice, motor neurons can grow out from the spinal cord and navigate through surrounding tissues to reach distant muscle groups. However, the scientists observed that in the mice with vascular mutations, the motor neurons seemed to get stuck behind a barrier of blood vessels. They found that the mutation had affected the blood vessels' ability to sense the approaching neurons and get out of the way.

"There is a collision between growing axons and vascular cells," says co-corresponding author Dario Bonanomi, group leader for molecular neurobiology at the San Raffaele Scientific Institute in Milan, Italy, and formerly of Salk. "When you take this receptor away from the blood vessel cells, the motor axons collide with blood vessels, and their progress toward the muscles is impaired and blocked."

The finding illuminates the delicate dance of developing neurons, which need to attract blood vessels to fuel their growth, while also repelling them to move out of the way. It's relevant to addressing the hurdles that must be overcome in the development of motor neuron "replacement therapy" using stem cells, a potential treatment for diseases where motor neurons degenerate, including ALS and SMA.

In the future, the scientists plan to examine the "crosstalk" between nerves and blood vessels in other contexts, as well as how the nervous and vascular systems respond to stroke, brain injuries, and degenerative diseases like ALS and SMA.

Other authors included Neal D. Amin of Salk; Luis F. Martins, Ilaria Brambilla, Alessia Motta, Stefano de Pretis, Ganesh Parameshwar Bhat, Aurora Badaloni, and Chiara Malpighi of the San Raffaele Scientific Institute in Italy; Fumiyasu Imai and Yutaka Yoshida of the Burke Neurological Institute in New York; and Ramiro D. Almeida of the University of Coimbra in Portugal.

This work was funded by the European Research Council (grant 335590), the Giovanni Armenise-Harvard Foundation Career Development Award, the Howard Hughes Medical Institute Investigator Award, the National Institute of Neurological Disorders and Stroke (RO1 NS123160-01), the Sol Goldman Charitable Trust, and the Benjamin H. Lewis Chair in Neuroscience.


Story Source:

Materials provided by Salk InstituteNote: Content may be edited for style and length.


Journal Reference:

  1. Luis F. Martins, Ilaria Brambilla, Alessia Motta, Stefano de Pretis, Ganesh Parameshwar Bhat, Aurora Badaloni, Chiara Malpighi, Neal D. Amin, Fumiyasu Imai, Ramiro D. Almeida, Yutaka Yoshida, Samuel L. Pfaff, Dario Bonanomi. Motor neurons use push-pull signals to direct vascular remodeling critical for their connectivityNeuron, 2022; DOI: 10.1016/j.neuron.2022.09.021

New weapon against antibiotic-resistant bacteria

 The over-use of antibiotics has pushed bacteria to develop resistance mechanisms to this type of treatment. This phenomenon, known as antibiotic resistance, is now considered by the WHO as one of the greatest threats to health. The lack of treatment against multi-resistant bacteria could bring us back to a time when millions of people died of pneumonia or salmonella. The bacterium Klebsiella pneumoniae, which is very common in hospitals and particularly virulent, is one of the pathogens against which our weapons are becoming blunt. A team from the University of Geneva (UNIGE) has discovered that edoxudine, an anti-herpes molecule discovered in the 60s, weakens the protective surface of Klebsiella bacteria and makes them easier to eliminate for immune cells. These results can be read in the journal PLOS One.

Klebsiella pneumoniae causes many respiratory, intestinal and urinary tract infections. Due to its resistance to most common antibiotics and its high virulence, some of its strains can be fatal for 40% to 50% of infected people. There is an urgent need to develop new therapeutic molecules to counter it. "Since the 1930s, medicine has relied on antibiotics to get rid of pathogenic bacteria," explains Pierre Cosson, professor in the Department of Cell Physiology and Metabolism at the UNIGE Faculty of Medicine, who led this research. "But other approaches are possible, among which trying to weaken the bacteria's defence system so that they can no longer escape the immune system. This avenue seems all the more promising as the virulence of Klebsiella pneumoniae stems largely from its ability to evade attacks from immune cells."

An amoeba as a model

To determine whether or not the bacteria were weakened, the UNIGE scientists used an experimental model with surprising characteristics: the amoeba Dictyostelium. This single-cell organism feeds on bacteria by capturing and ingesting them, using the same mechanisms that immune cells use to kill pathogens. "We genetically modified this amoeba so that it could tell us whether the bacteria it encountered were virulent or not. This very simple system then enabled us to test thousands of molecules and identify those that reduced bacterial virulence," explains Pierre Cosson.

Weakening the bacteria without killing them

Developing a drug is a long and expensive process, with no guarantee of results. The UNIGE scientists therefore opted for a quicker and safer strategy: reviewing existing drugs to identify possible new therapeutic indications. The research team evaluated the effect on Klebsiella pneumoniae of hundreds of drugs already on the market, with a wide range of therapeutic indications. A drug developed to combat herpes, edoxudine, proved particularly promising.

"By altering the surface layer that protects the bacteria from their external environment, this pharmacological product makes it vulnerable. Unlike an antibiotic, edoxudine does not kill the bacteria, which limits the risk of developing resistance, a major advantage of such an anti-virulence strategy," says the researcher.

Although the effectiveness of such a treatment in human beings has yet to be confirmed, the results of this study are encouraging: edoxudine acts even on the most virulent strains of Klebsiella pneumoniae, and at lower concentrations than those prescribed to treat herpes. "Sufficiently weakening the bacteria without killing them is a subtle strategy, but one that could prove to be a winner in the short and long terms," concludes Pierre Cosson.


Story Source:

Materials provided by UniversitĂ© de GenèveNote: Content may be edited for style and length.


Journal Reference:

  1. Estelle Ifrid, Hajer Ouertatani-Sakouhi, Tania Jauslin, Sebastien Kicka, Gianpaolo Chiriano, Christopher F. Harrison, Hubert Hilbi, Leonardo Scapozza, Thierry Soldati, Pierre Cosson. 5-ethyl-2’-deoxyuridine fragilizes Klebsiella pneumoniae outer wall and facilitates intracellular killing by phagocytic cellsPLOS ONE, 2022; 17 (10): e0269093 DOI: 10.1371/journal.pone.0269093

Potential secret to viral resistance

 Scientists from Trinity College Dublin have unearthed a secret that may explain why some people are able to resist viral infections, having screened the immune systems of women exposed to hepatitis C (HCV) through contaminated anti-D transfusions given over 40 years ago in Ireland.

The extraordinary work, just published in the journal Cell Reports Medicine, has wide-ranging implications from improving our fundamental understanding of viral resistance to the potential design of therapies to treat infected people.

Between 1977 and 1979 in Ireland, several thousand  were exposed to the hepatitis C virus through contaminated anti-D, which is a medication made using plasma from donated blood and given to Rhesus negative women who are pregnant with a Rhesus positive fetus. The medication prevents the development of antibodies that could be dangerous in subsequent pregnancies. Some of the anti-D used during the 1977–79 period was contaminated with hepatitis C.

From this outbreak, three groups of people were identifiable: those who were chronically infected; those who cleared the infection with an antibody response; and those who appeared protected against infection without making antibodies against hepatitis C.

Cliona O'Farrelly, professor of comparative immunology in Trinity's School of Biochemistry and Immunology, is the senior author of the research article. Cliona, who is based in the Trinity Biomedical Sciences Institute, said, "We hypothesized that women who seemed to resist HCV infection must have an enhanced innate immune response, which is the ancient part of the immune system that acts as a first line of defense.

"To test this we needed to make contact with women exposed to the virus over forty years ago and ask them to help us by allowing us to study their immune systems to hunt for scientific clues that would explain their differing responses.

"After a nationwide campaign over 100 women came forward and we have gained some unique and important insights. That so many women—many of whom have lived with medical complications for a long time—were willing to help is testament to how much people want to engage with science and help pursue research with the potential to make genuine, positive impacts on society. We are deeply grateful to them."

The scientists ultimately recruited almost 40 women from the resistant group, alongside 90 women who were previously infected.

In collaboration with the Institut Pasteur in Paris they then invited almost 20 women in each group to donate a  that they stimulated with molecules that mimic viral infection and lead to activation of the innate immune system.

Jamie Sugrue, Ph.D. Candidate in Trinity's School of Biochemistry and Immunology, is first author of the research article. He said, "By comparing the response of the resistant women to those who became infected, we found that resistant donors had an enhanced type I interferon response after stimulation. Type I interferons are a key family of antiviral immune mediators that play an important role in defense against viruses including hepatitis C and SARS-CoV-2, or COVID-19.

"We think that the increased type I interferon production by our resistant donors, seen now almost 40 years after the original exposure to hepatitis C, is what protected them against infection.

"These findings are important as resistance to infection is very much an overlooked outcome following viral outbreak, primarily because identifying resistant individuals is very difficult—since they do not become sick after viral exposure, they wouldn't necessarily know that they were exposed. That's why cohorts like this, though tragic in nature, are so valuable—they provide a unique opportunity to study the response to viral infections in an otherwise healthy population."

The lab's efforts are now focused on leveraging these biological findings to unpick the genetics of viral resistance in the HCV donors. Their work on HCV resistance has already helped ignite international interest in resistance to other , including SARS-CoV-2, the virus that causes COVID-19.

The O'Farrelly lab has expanded its search for virus-resistant individuals by joining in the COVID human genetic effort (www.COVIDhge.com) and by recruiting members of the public who have been heavily exposed to SARS-CoV-2 but never developed an infection (www.viralresistanceproject.com).

More information: Cliona O'Farrelly, Enhanced TLR3 responsiveness in hepatitis C virus resistant women from the Irish anti-D cohort, Cell Reports Medicine (2022). DOI: 10.1016/j.xcrm.2022.100804www.cell.com/cell-reports-medi … 2666-3791(22)00363-9
https://medicalxpress.com/news/2022-11-team-uncovers-potential-secret-viral.html