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GSK (NYSE: GSK) gains EU clearance to offer RSV vaccine Arexvy to all adults 18+

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
6-K

Rhea-AI Filing Summary

GSK plc reports that its RSV vaccine Arexvy has been approved by the European Commission for expanded use in adults aged 18 years and older. The vaccine was previously authorised in the European Economic Area for preventing lower respiratory tract disease caused by RSV in adults 60 and over and in adults 50 to 59 at increased risk.

This broader indication means European countries can now make Arexvy available to all adults 18+, potentially addressing a substantial disease burden. In the European Union, an average of 158,000 adults aged 18 and over are hospitalised each year with RSV-related illness. GSK notes that RSV can worsen chronic conditions such as COPD, asthma and chronic heart failure and can lead to pneumonia, hospitalisation and death.

The company highlights that Arexvy combines a recombinant RSV glycoprotein F antigen with GSK’s AS01E adjuvant, and that its use should follow official recommendations since not all vaccinees may develop protective immunity. GSK is also seeking expanded indications for this RSV vaccine in other geographies, including the US and Japan.

Positive

  • European Commission approval expands Arexvy’s indication to all adults 18+, broadening potential use beyond previously approved higher‑risk and older age groups.
  • Addresses a significant disease burden, with an average of 158,000 adults 18+ hospitalised annually in the EU for RSV-related illness, highlighting substantial potential public health impact.

Negative

  • None.

Insights

EU approval broadens Arexvy’s addressable adult population and supports GSK’s RSV franchise.

The European Commission has approved Arexvy for adults aged 18 and older, expanding beyond prior labels limited to adults 60+ and 50–59 at increased risk. This turns a risk‑focused indication into a broad adult label, allowing European countries to offer the vaccine to the full adult population, subject to each market’s recommendations and policies. The move builds on Arexvy’s status as the first RSV vaccine authorised in the European Economic Area for prevention of RSV lower respiratory tract disease.

The filing cites an estimated average of 158,000 RSV‑related hospitalisations annually among adults 18+ in the EU, underscoring the potential public health relevance, especially given RSV’s ability to exacerbate COPD, asthma and chronic heart failure. The vaccine’s design, combining an RSVPreF3 antigen with the AS01E adjuvant, remains unchanged, and GSK cautions that not all recipients will mount a protective immune response.

GSK is also pursuing expanded indications in other key markets including the US and Japan, which, if granted, could further entrench its RSV position. Future disclosures in company filings may provide clarity on uptake patterns across adult age groups and how national recommendations in EU member states translate this broader authorization into real‑world vaccination programmes.

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
Form 6-K
 
REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934
 
 
 
For the month of January 2026
 
Commission File Number 001-15170
 
 
GSK plc
(Translation of registrant's name into English)
 
 
79 New Oxford Street, London, WC1A 1DG
(Address of principal executive office)
 
 
 
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
 
Form 20-F . . . .X. . . . Form 40-F . . . . . . . .
 
 
 
 
 Issued: 26 January 2026, London UK
 
GSK's RSV vaccine, Arexvy, receives European approval for expanded use in all adults 18 years and older
 
In the EU, an average of 158,000 adults are hospitalised with RSV-related illness every year[1]
 

 
GSK plc (LSE/NYSE: GSK) today announced that its adjuvanted recombinant respiratory syncytial virus (RSV) vaccine, Arexvy, has been approved by the European Commission* (EC) for use in adults aged 18 years and older. Arexvy was the first RSV vaccine authorised in the European Economic Area for the prevention of lower respiratory tract disease (LRTD) caused by RSV. It was previously approved in adults aged 60 years and above, as well as in those aged 50 to 59 years who are at increased risk for RSV disease. Today's updated indication now enables European countries to make the vaccine available to all adults aged 18 years and older.
 
Sanjay Gurunathan, GSK Head of Vaccines and Infectious Diseases Research and Development, said: "This approval helps protect all adults aged 18 and older in Europe against RSV, a potentially serious respiratory infection that can lead to significant illness, hospitalisation and even death, particularly for those with certain underlying health conditions. GSK is proud to expand prevention options against RSV across Europe."
 
In the European Union, an average of 158,000 adults aged 18 and over are hospitalised due to RSV infections each year.1 Compared to children, adults hospitalised for RSV are at a higher risk of severe complications, require more costly treatments, have a higher fatality rate, and their true number is likely underestimated due to lack of routine testing.[2],[3],[4],[5]
 
GSK continues to seek expanded indications for its RSV vaccine in other geographies including the US and Japan.
 
About GSK's RSV vaccine
Respiratory Syncytial Virus Vaccine, Adjuvanted, contains recombinant RSV glycoprotein F stabilised in the prefusion conformation (RSVPreF3). This antigen is combined with GSK's proprietary AS01E adjuvant.
 
The use of this vaccine should be in accordance with official recommendations. As with any vaccine, a protective immune response may not be elicited in all vaccinees.
 
The vaccine has been approved for the prevention of RSV-LRTD in individuals 60 years of age and older in more than 65 countries. In addition, it is approved for use in individuals aged 50-59 who are at increased risk for RSV disease due to certain underlying medical conditions in more than 60 countries, including the US and Japan.
 
Please refer to the Product Information (PI) for important dosage, administration and safety information in Europe via this link: http://www.ema.europa.eu/medicines/human//EPAR/arexvy
 
The GSK proprietary AS01 adjuvant system contains STIMULON QS-21 adjuvant licensed from Antigenics LLC, a wholly owned subsidiary of Agenus Inc. STIMULON is a trademark of SaponiQx Inc., a subsidiary of Agenus.
 
About RSV in adults
RSV is a common contagious virus affecting the lungs and breathing passages and impacts an estimated 64 million people of all ages globally every year.[6] Adults can be at increased risk for RSV disease due to certain chronic conditions, immune compromised status or advanced age.[7] RSV can exacerbate certain chronic conditions, including COPD, asthma and chronic heart failure, and can lead to severe outcomes such as pneumonia, hospitalisation and death.7
 
 
About GSK
GSK is a global biopharma company with a purpose to unite science, technology and talent to get ahead of disease together. Find out more at www.gsk.com.
 
GSK enquiries
 
 
 
Media:
Tim Foley
+44 (0) 20 8047 5502
(London)
 
Simon Moore
+44 (0) 20 8047 5502
(London)
 
Alison Hunt
+1 540 742 3391
(Washington DC)
 
 
 
 
Investor Relations:
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+44 (0) 7831 826 525
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James Dodwell
+44 (0) 20 8047 2406
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Mick Readey
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Frannie DeFranco
+1 215 751 3126
(Philadelphia)
 
Cautionary statement regarding forward-looking statements
GSK cautions investors that any forward-looking statements or projections made by GSK, including those made in this announcement, are subject to risks and uncertainties that may cause actual results to differ materially from those projected. Such factors include, but are not limited to, those described in the "Risk Factors" section in GSK's Annual Report on Form 20-F for 2024, and GSK's Q3 Results for 2025.
 
Registered in England & Wales:
No. 3888792
 
Registered Office:
79 New Oxford Street
London
WC1A 1DG
 
 
Note:
*The European Commission approves medicines for European Union member states and for the European Economic Area (EEA) countries Iceland, Norway and Liechtenstein.
 
 
References: 
_______________________________________
 
[1] Osei-Yeboah R, et al. Estimation of the Number of Respiratory Syncytial Virus-Associated Hospitalizations in Adults in the European Union. J Infect Dis. 2023;228(11):1539-1548.
[2] Niekler P, et al. Hospitalizations due to respiratory syncytial virus (RSV) infections in Germany: a nationwide clinical and direct cost data analysis (2010-2019). Infection. 2024;52(5):1715-1724.
[3] Günen H, et al. Key Challenges to Understanding the Burden of Respiratory Syncytial Virus in Older Adults in Southeast Asia, the Middle East, and North Africa: An Expert Perspective. Adv Ther. 2024;41(11):4312-4334.
[4] Alfano F, et al. Respiratory Syncytial Virus Infection in Older Adults: An Update. Drugs Aging. 2014;41:487-505.
[5] Grace M, et al. Economic burden of respiratory syncytial virus infection in adults: a systematic literature review. J Med Econ. 2023;26(1):742-759.
[6] National Institute of Allergy and Infectious Diseases, Respiratory Syncytial Virus (RSV). Available at: https://www.niaid.nih.gov/diseases-conditions/respiratory-syncytial-virus-rsv. Last accessed January 2026.
[7] Falsey, AR et al. Respiratory syncytial virus infection in elderly and high-risk adults, in New Engl J Med 2005; 352:1749-59. doi: 10.1056/NEJMoa043951.
 
 
 
 
SIGNATURES
 
 
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorised.
 
GSK plc
 
(Registrant)
 
 
Date: January 26, 2026
 
 
 
 
By:/s/ VICTORIA WHYTE
--------------------------
 
 
 
Victoria Whyte
 
Authorised Signatory for and on
 
behalf of GSK plc


FAQ

What did GSK (GSK) announce about its RSV vaccine Arexvy in this 6-K?

GSK announced that the European Commission has approved its RSV vaccine Arexvy for use in all adults aged 18 years and older. Previously, the vaccine was authorised in the European Economic Area only for adults 60+ and adults 50–59 who are at increased risk for RSV disease.

How does the new European approval change Arexvy’s indicated population?

Arexvy’s indication has expanded from older and higher‑risk adults to all adults 18 years and older in the European Union and European Economic Area. This updated label allows European countries to make the vaccine available to the full adult population, according to their official recommendations.

How large is the RSV disease burden in European adults mentioned by GSK?

GSK cites research estimating that in the European Union an average of 158,000 adults aged 18 and over are hospitalised each year due to RSV infections. The company notes that adults hospitalised for RSV face higher risks of severe complications, more costly treatments and higher fatality rates than children.

In which other countries is GSK seeking expanded indications for Arexvy?

GSK states that it continues to seek expanded indications for its RSV vaccine in other geographies, including the United States and Japan. The vaccine is already approved for prevention of RSV lower respiratory tract disease in adults 60+ in more than 65 countries and in adults 50–59 at increased risk in more than 60 countries, including the US and Japan.

What is the composition of GSK’s RSV vaccine Arexvy?

Arexvy is described as a Respiratory Syncytial Virus Vaccine, Adjuvanted. It contains a recombinant RSV glycoprotein F antigen stabilised in the prefusion conformation (RSVPreF3), combined with GSK’s proprietary AS01E adjuvant system. GSK notes that, as with any vaccine, a protective immune response may not be elicited in all vaccinees.

Why does GSK emphasize RSV risk in adults in this disclosure?

GSK highlights that RSV affects an estimated 64 million people of all ages globally every year and that adults can be at increased risk due to chronic conditions, immune compromise or advanced age. RSV can worsen COPD, asthma and chronic heart failure and lead to pneumonia, hospitalisation and death, underlining the rationale for vaccination in adults.

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