UTI vaccines could prevent infection for nine years


Wednesday, 10 April, 2024

UTI vaccines could prevent infection for nine years

An oral spray-based vaccine could help prevent recurrent urinary tract infections (UTIs) for up to nine years — offering a potential alternative to antibiotic treatments, suggests latest research.

Clinicians at the UK’s Royal Berkshire Hospital studied the safety and effectiveness of the MV140 vaccine for recurrent UTIs in 89 patients, originally treated privately at The Urology Partnership Reading.

MV140 is a new vaccine for recurrent UTIs and is administered with two sprays of a pineapple-flavoured suspension under the tongue every day for three months. While researchers have previously studied MV140’s short-term safety and effectiveness, this was said to be the first long-term follow-up study to report globally.

Easy to administer

The researchers found that in both men and women with recurrent UTIs, 54% of study participants remained UTI-free for nine years after the vaccine, with no notable side effects reported. Their findings were presented at the European Association of Urology (EAU) Congress in Paris, with full results of the study expected to be published by the end of 2024.

Dr Bob Yang, Consultant Urologist at the Royal Berkshire NHS Foundation Trust, who co-led the research, said, “Before having the vaccine, all our participants suffered from recurrent UTIs, and for many women, these can be difficult to treat. Nine years after first receiving this new UTI vaccine, around half of the participants remained infection-free. Overall, this vaccine is safe in the long term and our participants reported having fewer UTIs that were less severe. Many of those who did get a UTI told us that simply drinking plenty of water was enough to treat it.

“This is a very easy vaccine to administer and could be given by GPs as a 3-month course. Many of our participants told us that having the vaccine restored their quality of life. While we’re yet to look at the effect of this vaccine in different patient groups, this follow-up data suggests it could be a game changer for UTI prevention if it’s offered widely, reducing the need for antibiotic treatments.”

In the original trial, patients were initially followed up for 12 months and data from the women in the cohort was published in BJU International in 2017. For their nine-year follow-up study, the researchers analysed data from the electronic health records of their original cohort. They interviewed participants about their experience of UTIs since receiving the vaccine and asked them about side effects.

Forty-eight participants remained entirely infection-free during the nine-year follow-up. The average infection-free period across the cohort was 54.7 months (four and a half years) — 56.7 months for women and 44.3 months, one year less, for men. 40% of participants reported having repeat doses of the vaccine after one or two years.

Long-term safety and effectiveness

Gernot Bonkat, Professor of Urology at the Alta Uro Medical Centre for Urology in Switzerland, and Chairman of the EAU Guidelines on Urological Infections, said, “These findings are promising. Recurrent UTIs are a substantial economic burden and the overuse of antibiotic treatments can lead to antibiotic-resistant infections. This follow-up study reveals encouraging data about the long-term safety and effectiveness of the MV140 vaccine. Further research into more complex UTIs is needed, as well as research looking at different groups of patients, so we can better optimise how to use this vaccine.

“While we need to be pragmatic, this vaccine is a potential breakthrough in preventing UTIs and could offer a safe and effective alternative to conventional treatments.”

Developed by the Spain-based pharmaceutical company Immunotek, MV140 contains four bacterial species in a suspension with water. It is available off-licence in 26 countries. Participants in the trial were all aged over 18 years and were UTI-free when they were initially offered the vaccine. None of the participants had other urinary abnormalities such as catheters, tumours or stones. The follow-up study included 72 women and 17 men and outcomes were self-reported.

Image credit: iStock.com/PrettyVectors

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