Budapest Post

Cum Deo pro Patria et Libertate
Budapest, Europe and world news

Moderna flu vaccine delivers mixed results in trial, shares fall

Moderna flu vaccine delivers mixed results in trial, shares fall

Moderna Inc. on Thursday said its closely watched experimental messenger RNA-based influenza vaccine generated a strong immune response against A strains of the flu but failed to show it was at least as effective as an approved vaccine versus less prevalent influenza B.
The results dashed investor hopes that the company might plug its COVID franchise decline, sending Moderna’s shares down more than 6 percent in after-hours trading.

Moderna, whose only marketed product is its COVID-19 shot, has high hopes for its flu vaccine and aims to grab large portions of the respiratory syncytial virus (RSV) and seasonal flu markets with new mRNA vaccines.

The company said its vaccine, called mRNA-1010, generated a stronger immune response for the A/H3N2 and A/H1N1 strains than the marketed vaccine it was tested against in a trial of 6,102 adults aged 18 and over across Argentina, Australia, Colombia, Panama and the Philippines during flu season there.

It failed to meet its goal of non-inferiority compared to the conventional vaccine for the B/Victoria and B/Yamagata-lineage strains, the drugmaker said.

Cowen analyst Tyler Van Buren said investors had hoped Moderna would replace its COVID revenue with RSV and flu vaccine income, especially after it delivered positive RSV vaccine efficacy results in January.

“But to fill that big COVID decline, you need RSV and flu. The efficacy results could tell a different story when they come out, but there was no doubt that the most recent vaccine data was a mixed bag,” he said.

He said physicians and patients might be put off by Moderna’s flu vaccine’s results for Influenza B and the high rate of side effects.

The US company said it has already updated mRNA-1010 in a way it believes will improve immune responses against Influenza B and will test those changes.

“We have always said our goal is to produce a flu vaccine, and then to iterate it, and to fine tune it over time to really make it exceptional,” Chief Medical Officer Paul Burton said in an interview.

Dr. David Boulware, an infectious disease specialist at the University of Minnesota Medical School, said he was not overly concerned about the immune response versus Influenza B.

Boulware said the immune response against the A strains demonstrated that the vaccine probably worked and Moderna’s tweaks to the vaccine are likely to improve the response against the B strains.

“I consider it pretty positive,” he said.

Seventy percent of those who received Moderna’s shot reported mostly mild adverse reactions compared to 48 percent for the conventional flu vaccine. Pain and swelling at the injection site as well as headaches and fatigue were among the most commonly reported side effects.

The company also has an ongoing late-stage efficacy study on the mRNA-1010 flu vaccine, which could have data within weeks.

If that trial reads out soon, Burton said he hopes to have the data prepared and sent to regulators in the first half of this year, which could allow them to review it as soon as late 2023 or early 2024.

The flu, an infection of the nose, throat and lungs, kills 290,000 to 650,000 people worldwide annually.
AI Disclaimer: An advanced artificial intelligence (AI) system generated the content of this page on its own. This innovative technology conducts extensive research from a variety of reliable sources, performs rigorous fact-checking and verification, cleans up and balances biased or manipulated content, and presents a minimal factual summary that is just enough yet essential for you to function as an informed and educated citizen. Please keep in mind, however, that this system is an evolving technology, and as a result, the article may contain accidental inaccuracies or errors. We urge you to help us improve our site by reporting any inaccuracies you find using the "Contact Us" link at the bottom of this page. Your helpful feedback helps us improve our system and deliver more precise content. When you find an article of interest here, please look for the full and extensive coverage of this topic in traditional news sources, as they are written by professional journalists that we try to support, not replace. We appreciate your understanding and assistance.
Newsletter

Related Articles

0:00
0:00
Close
Severe Heatwave Claims 2,300 Lives Across Europe
Declining Beer Consumption Signals Cultural Shift in Germany
Emails Leaked: How Passenger Luggage Became a Side Income for Airport Workers
Polish MEP: “Dear Leftists - China is laughing at you, Russia is laughing, India is laughing”
Western Europe Records Hottest June on Record
BRICS Expands Membership with Indonesia and Ten New Partner Countries
Elon Musk Founds a Party Following a Poll on X: "You Wanted It – You Got It!"
China’s Central Bank Consults European Peers on Low-Rate Strategies
France Requests Airlines to Cut Flights at Paris Airports Amid Planned Air Traffic Controller Strike
Poland Implements Border Checks Amid Growing Migration Tensions
Emirates Airline Expands Market Share with New $20 Million Campaign
Amazon Reaches Milestone with Deployment of One Millionth Robot
Yulia Putintseva Calls for Spectator Ejection at Wimbledon Over Safety Concerns
House Oversight Committee Subpoenas Former Jill Biden Aide Amid Investigation into Alleged Concealment of President Biden's Cognitive Health
Amazon Reaches Major Automation Milestone with Over One Million Robots
Extreme Heat Wave Sweeps Across Europe, Hitting Record Temperatures
Meta Announces Formation of Ambitious AI Unit, Meta Superintelligence Labs
Robots Compete in Football Tournament in China Amid Injuries
China Unveils Miniature Insect-Like Surveillance Drone
Marc Marquez Claims Victory at Dutch Grand Prix Amidst Family Misfortune
Germany Votes to Suspend Family Reunification for Asylum Seekers
Budapest Pride Parade Draws 200,000 Participants Amid Government Ban
Southern Europe Experiences Extreme Heat
Xiaomi's YU7 SUV Launch Garners Record Pre-Orders Amid Market Challenges
Jeff Bezos and Lauren Sanchez's Lavish Wedding in Venice
Russia Launches Largest Air Assault on Ukraine Since Invasion
Massive Anti-Government Protests Erupt in Belgrade
Iran Executes Alleged Israeli Spies and Arrests Hundreds Amid Post-War Crackdown
Hungary's Prime Minister Criticizes NATO's Role in Ukraine
EU TO HUNGARY: LET THEM PRIDE OR PREP FOR SHADE. ORBÁN TO EU: STAY IN YOUR LANE AND FIX YOUR OWN MESS.
Hungarian Scientist to Conduct 30 Research Experiments on the International Space Station
NATO Members Agree to 5% Defense Spending Target by 2035
NATO Leaders Endorse Plan for Increased Defence Spending
U.S. Crude Oil Prices Drop Below $65 Amid Market Volatility
International Astronaut Team Launched to Space Station
Macron and Merz: Europe must arm itself in an unstable world
Germany and Italy Under Pressure to Repatriate $245bn of Gold from US Vaults
Iran Intensifies Crackdown on Alleged Mossad Operatives After Sabotage Claims
Trump Praises Iran’s ‘Very Weak’ Response After U.S. Strikes and Presses Israel to Pursue Peace
Oil Prices Set to Surge After US Strikes Iran
BA and Singapore Airlines Cancel Dubai Flights Amid Middle East Tensions
Trump Faces Backlash from MAGA Base Over Iran Strikes
Meta Bets $14 B on Alexandr Wang to Drive AI Ambitions
FedEx Founder Fred Smith, ‘Heart and Soul’ of the Company, Dies at 80
Chinese Factories Shift Away from U.S. Amid Trump‑Era Tariffs
Pimco Seizes Opportunity in Japan’s Dislocated Bond Market
Labubu Doll Drives Pop Mart to Status as China’s Most Valuable Toy Maker
Global Coal Demand Defies Paris Accord Goals
United States Conducts Precision Strikes on Iran’s Nuclear Sites
US strikes Iran nuclear sites, Trump says
×