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TB vaccine discovery paves path to end no. 1 killer of people living with HIV

Scientists at the University of Pittsburgh School of Medicine have discovered a tuberculosis (TB) vaccination strategy that could prevent the leading cause…

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Scientists at the University of Pittsburgh School of Medicine have discovered a tuberculosis (TB) vaccination strategy that could prevent the leading cause of death among people worldwide living with HIV.

Credit: University of Pittsburgh

Scientists at the University of Pittsburgh School of Medicine have discovered a tuberculosis (TB) vaccination strategy that could prevent the leading cause of death among people worldwide living with HIV.

The results, published this week in Nature Microbiology, showed that, when given intravenously, the only commercially available vaccine against TB successfully and safely prevents lung infection in monkeys infected with the simian, or primate, form of HIV, called SIV. This is despite the vaccine being contraindicated for people living with HIV.

“What is really exciting about this study is that, for the first time, we’re seeing complete protection from TB in a model of HIV. This hasn’t been shown before,” said lead author Dr. Erica Larson, research assistant professor in Pitt’s Department of Microbiology and Molecular Genetics. “This shows that there’s potential to protect people living with HIV against TB.”

One in three people living with HIV die of TB, which is caused by a bacterium called M. tuberculosis that usually attacks the lungs. It is the world’s second-leading infectious killer after COVID-19. About 1.6 million people die of TB annually, including almost 200,000 people living with HIV, according to the World Health Organization.

Bacille Calmette-Guérin (BCG) is a vaccine against TB that has been around for 100 years and is among the most widely used vaccines in the world. It is made of a live, but weakened, form of M. bovis, a bacteria closely related to M. tuberculosis. BCG is mostly given to infants and children via injection into the skin, but it offers minimal protection from M. tuberculosis, particularly against infection of the lungs.

In a landmark study published in Nature in 2020, a team of scientists at Pitt and National Institutes of Health showed that when monkeys are given the BCG vaccine intravenously — injected directly into a vein — it is highly protective against TB, including lung infections.

The new study builds on these findings.

“We almost didn’t do this study with this vaccine out of fear that the vaccine itself would cause serious disease in these immunocompromised animals,” said senior author Dr. Charles Scanga, research associate professor in Pitt’s Department of Microbiology and Molecular Genetics. “BCG is a live bacteria. It is safe for people with healthy immune systems, but HIV suppresses immunity, and even weakened bacteria can be fatal.”

With the encouraging results from the previous Nature paper, the team decided to go forward with the experiment. But they did something unique. About three weeks after vaccination, they gave the monkeys antibiotics to kill all the live attenuated bacteria in the vaccine. Their hope was that the BCG had enough time to stimulate the immune system to protect against a real TB infection, but not enough time for the weakened bacteria in the vaccine to cause disease in the immunocompromised monkeys.

The gamble paid off. Not only did none of the animals get sick from the BCG vaccine but, most importantly, 75% of the monkeys with SIV that were vaccinated intravenously and then given antibiotics a few weeks later went on to successfully fight off TB infections. Intravenous BCG vaccination also protected all the monkeys without an SIV infection. The only animals in which the vaccine did not work to prevent TB were those that had the worst SIV disease, likely because the SIV had already wiped out the immune cells, meaning there were none left for the vaccine to train to fight TB.

The scientists note that it isn’t going to be practical — especially in low- and middle-income countries — to give this vaccine intravenously to people with HIV and then expect them to come back in a few weeks to take antibiotics to prevent the BCG vaccine from causing disease. They plan to test the safety of intravenous BCG without using any antibiotics, as well as testing new BCG vaccines in development that self-destruct before that can cause disease in immunocompromised people, yet are still able to prevent TB.

“TB is rampant in parts of the world where there isn’t a really good public health infrastructure,” said Scanga, who is also a member of Pitt’s Center for Vaccine Research. “Unfortunately, those are also places where HIV goes undiagnosed or untreated and spreads. So, epidemiologically, TB and HIV go hand-in-hand. Prevention in the form of a realistic TB vaccination strategy is going to be key to saving hundreds of thousands of lives each year. And I’m hopeful that our study is a big step in that direction.”


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Four burning questions about the future of the $16.5B Novo-Catalent deal

To build or to buy? That’s a classic question for pharma boardrooms, and Novo Nordisk is going with both.
Beyond spending billions of dollars to expand…

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To build or to buy? That’s a classic question for pharma boardrooms, and Novo Nordisk is going with both.

Beyond spending billions of dollars to expand its own production capacity for its weight loss drugs, the Danish drugmaker said Monday it will pay $11 billion to acquire three manufacturing plants from Catalent. It’s part of a broader $16.5 billion deal with Novo Holdings, the investment arm of the pharma’s parent group, which agreed to acquire the contract manufacturer and take it private.

It’s a big deal for all parties, with potential ripple effects across the biotech ecosystem. Here’s a look at some of the most pressing questions to watch after Monday’s announcement.

Why did Novo do this?

Novo Holdings isn’t the most obvious buyer for Catalent, particularly after last year’s on-and-off M&A interest from the serial acquirer Danaher. But the deal could benefit both Novo Holdings and Novo Nordisk.

Novo Nordisk’s biggest challenge has been simply making enough of the weight loss drug Wegovy and diabetes therapy Ozempic. On last week’s earnings call, Novo Nordisk CEO Lars Fruergaard Jørgensen said the company isn’t constrained by capital in its efforts to boost manufacturing. Rather, the main challenge is the limited amount of capabilities out there, he said.

“Most pharmaceutical companies in the world would be shopping among the same manufacturers,” he said. “There’s not an unlimited amount of machinery and people to build it.”

While Novo was already one of Catalent’s major customers, the manufacturer has been hamstrung by its own balance sheet. With roughly $5 billion in debt on its books, it’s had to juggle paying down debt with sufficiently investing in its facilities. That’s been particularly challenging in keeping pace with soaring demand for GLP-1 drugs.

Novo, on the other hand, has the balance sheet to funnel as much money as needed into the plants in Italy, Belgium, and Indiana. It’s also struggled to make enough of its popular GLP-1 drugs to meet their soaring demand, with documented shortages of both Ozempic and Wegovy.

The impact won’t be immediate. The parties expect the deal to close near the end of 2024. Novo Nordisk said it expects the three new sites to “gradually increase Novo Nordisk’s filling capacity from 2026 and onwards.”

As for the rest of Catalent — nearly 50 other sites employing thousands of workers — Novo Holdings will take control. The group previously acquired Altasciences in 2021 and Ritedose in 2022, so the Catalent deal builds on a core investing interest in biopharma services, Novo Holdings CEO Kasim Kutay told Endpoints News.

Kasim Kutay

When asked about possible site closures or layoffs, Kutay said the team hasn’t thought about that.

“That’s not our track record. Our track record is to invest in quality businesses and help them grow,” he said. “There’s always stuff to do with any asset you own, but we haven’t bought this company to do some of the stuff you’re talking about.”

What does it mean for Catalent’s customers? 

Until the deal closes, Catalent will operate as a standalone business. After it closes, Novo Nordisk said it will honor its customer obligations at the three sites, a spokesperson said. But they didn’t answer a question about what happens when those contracts expire.

The wrinkle is the long-term future of the three plants that Novo Nordisk is paying for. Those sites don’t exclusively pump out Wegovy, but that could be the logical long-term aim for the Danish drugmaker.

The ideal scenario is that pricing and timelines remain the same for customers, said Nicole Paulk, CEO of the gene therapy startup Siren Biotechnology.

Nicole Paulk

“The name of the group that you’re going to send your check to is now going to be Novo Holdings instead of Catalent, but otherwise everything remains the same,” Paulk told Endpoints. “That’s the best-case scenario.”

In a worst case, Paulk said she feared the new owners could wind up closing sites or laying off Catalent groups. That could create some uncertainty for customers looking for a long-term manufacturing partner.

Are shareholders and regulators happy? 

The pandemic was a wild ride for Catalent’s stock, with shares surging from about $40 to $140 and then crashing back to earth. The $63.50 share price for the takeover is a happy ending depending on the investor.

On that point, the investing giant Elliott Investment Management is satisfied. Marc Steinberg, a partner at Elliott, called the agreement “an outstanding outcome” that “clearly maximizes value for Catalent stockholders” in a statement.

Elliott helped kick off a strategic review last August that culminated in the sale agreement. Compared to Catalent’s stock price before that review started, the deal pays a nearly 40% premium.

Alessandro Maselli

But this is hardly a victory lap for CEO Alessandro Maselli, who took over in July 2022 when Catalent’s stock price was north of $100. Novo’s takeover is a tacit acknowledgment that Maselli could never fully right the ship, as operational problems plagued the company throughout 2023 while it was limited by its debt.

Additional regulatory filings in the next few weeks could give insight into just how competitive the sale process was. William Blair analysts said they don’t expect a competing bidder “given the organic investments already being pursued at other leading CDMOs and the breadth and scale of Catalent’s operations.”

The Blair analysts also noted the companies likely “expect to spend some time educating relevant government agencies” about the deal, given the lengthy closing timeline. Given Novo Nordisk’s ascent — it’s now one of Europe’s most valuable companies — paired with the limited number of large contract manufacturers, antitrust regulators could be interested in taking a close look.

Are Catalent’s problems finally a thing of the past?

Catalent ran into a mix of financial and operational problems over the past year that played no small part in attracting the interest of an activist like Elliott.

Now with a deal in place, how quickly can Novo rectify those problems? Some of the challenges were driven by the demands of being a publicly traded company, like failing to meet investors’ revenue expectations or even filing earnings reports on time.

But Catalent also struggled with its business at times, with a range of manufacturing delays, inspection reports and occasionally writing down acquisitions that didn’t pan out. Novo’s deep pockets will go a long way to a turnaround, but only the future will tell if all these issues are fixed.

Kutay said his team is excited by the opportunity and was satisfied with the due diligence it did on the company.

“We believe we’re buying a strong company with a good management team and good prospects,” Kutay said. “If that wasn’t the case, I don’t think we’d be here.”

Amber Tong and Reynald Castañeda contributed reporting.

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Petrina Kamya, Ph.D., Head of AI Platforms at Insilico Medicine, presents at BIO CEO & Investor Conference

Petrina Kamya, PhD, Head of AI Platforms and President of Insilico Medicine Canada, will present at the BIO CEO & Investor Conference happening Feb….

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Petrina Kamya, PhD, Head of AI Platforms and President of Insilico Medicine Canada, will present at the BIO CEO & Investor Conference happening Feb. 26-27 at the New York Marriott Marquis in New York City. Dr. Kamya will speak as part of the panel “AI within Biopharma: Separating Value from Hype,” on Feb. 27, 1pm ET along with Michael Nally, CEO of Generate: Biomedicines and Liz Schwarzbach, PhD, CBO of BigHat Biosciences.

Credit: Insilico Medicine

Petrina Kamya, PhD, Head of AI Platforms and President of Insilico Medicine Canada, will present at the BIO CEO & Investor Conference happening Feb. 26-27 at the New York Marriott Marquis in New York City. Dr. Kamya will speak as part of the panel “AI within Biopharma: Separating Value from Hype,” on Feb. 27, 1pm ET along with Michael Nally, CEO of Generate: Biomedicines and Liz Schwarzbach, PhD, CBO of BigHat Biosciences.

The session will look at how the latest artificial intelligence (AI) tools – including generative AI and large language models – are currently being used to advance the discovery and design of new drugs, and which technologies are still in development. 

The BIO CEO & Investor Conference brings together over 1,000 attendees and more than 700 companies across industry and institutional investment to discuss the future investment landscape of biotechnology. Sessions focus on topics such as therapeutic advancements, market outlook, and policy priorities.

Insilico Medicine is a leading, clinical stage AI-driven drug discovery company that has raised over $400m in investments since it was founded in 2014. Dr. Kamya leads the development of the Company’s end-to-end generative AI platform, Pharma.AI from Insilico’s AI R&D Center in Montreal. Using modern machine learning techniques in the context of chemistry and biology, the platform has driven the discovery and design of 30+ new therapies, with five in clinical stages – for cancer, fibrosis, inflammatory bowel disease (IBD), and COVID-19. The Company’s lead drug, for the chronic, rare lung condition idiopathic pulmonary fibrosis, is the first AI-designed drug for an AI-discovered target to reach Phase II clinical trials with patients. Nine of the top 20 pharmaceutical companies have used Insilico’s AI platform to advance their programs, and the Company has a number of major strategic licensing deals around its AI-designed therapeutic assets, including with Sanofi, Exelixis and Menarini. 

 

About Insilico Medicine

Insilico Medicine, a global clinical stage biotechnology company powered by generative AI, is connecting biology, chemistry, and clinical trials analysis using next-generation AI systems. The company has developed AI platforms that utilize deep generative models, reinforcement learning, transformers, and other modern machine learning techniques for novel target discovery and the generation of novel molecular structures with desired properties. Insilico Medicine is developing breakthrough solutions to discover and develop innovative drugs for cancer, fibrosis, immunity, central nervous system diseases, infectious diseases, autoimmune diseases, and aging-related diseases. www.insilico.com 


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Another country is getting ready to launch a visa for digital nomads

Early reports are saying Japan will soon have a digital nomad visa for high-earning foreigners.

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Over the last decade, the explosion of remote work that came as a result of improved technology and the pandemic has allowed an increasing number of people to become digital nomads. 

When looked at more broadly as anyone not required to come into a fixed office but instead moves between different locations such as the home and the coffee shop, the latest estimate shows that there were more than 35 million such workers in the world by the end of 2023 while over half of those come from the United States.

Related: There is a new list of cities that are best for digital nomads

While remote work has also allowed many to move to cheaper places and travel around the world while still bringing in income, working outside of one's home country requires either dual citizenship or work authorization — the global shift toward remote work has pushed many countries to launch specific digital nomad visas to boost their economies and bring in new residents.

Japan is a very popular destination for U.S. tourists. 

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This popular vacation destination will soon have a nomad visa

Spain, Portugal, Indonesia, Malaysia, Costa Rica, Brazil, Latvia and Malta are some of the countries currently offering specific visas for foreigners who want to live there while bringing in income from abroad.

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With the exception of a few, Asian countries generally have stricter immigration laws and were much slower to launch these types of visas that some of the countries with weaker economies had as far back as 2015. As first reported by the Japan Times, the country's Immigration Services Agency ended up making the leap toward a visa for those who can earn more than ¥10 million ($68,300 USD) with income from another country.

The Japanese government has not yet worked out the specifics of how long the visa will be valid for or how much it will cost — public comment on the proposal is being accepted throughout next week. 

That said, early reports say the visa will be shorter than the typical digital nomad option that allows foreigners to live in a country for several years. The visa will reportedly be valid for six months or slightly longer but still no more than a year — along with the ability to work, this allows some to stay beyond the 90-day tourist period typically afforded to those from countries with visa-free agreements.

'Not be given a residence card of residence certificate'

While one will be able to reapply for the visa after the time runs out, this can only be done by exiting the country and being away for six months before coming back again — becoming a permanent resident on the pathway to citizenship is an entirely different process with much more strict requirements.

"Those living in Japan with the digital nomad visa will not be given a residence card or a residence certificate, which provide access to certain government benefits," reports the news outlet. "The visa cannot be renewed and must be reapplied for, with this only possible six months after leaving the countr

The visa will reportedly start in March and also allow holders to bring their spouses and families with them. To start using the visa, holders will also need to purchase private health insurance from their home country while taxes on any money one earns will also need to be paid through one's home country.

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