Trial to prevent Group B Strep

5th November 2019

We’ve welcomed a landmark clinical trial aiming to improve the prevention of potentially life-threatening infection caused by group B Streptococcus in newborn babies in the UK

Trial to prevent Group B Strep

*UPDATE: We are pleased that the Government has now announced this trial has been given ethical approval and participants will be recruited starting Spring 2020. We will continue to follow process of the trial with great interest*

Group B Strep is the most common cause of life-threatening infection in newborn babies, causing pneumonia, meningitis and sepsis.

The £2.8 million National Institute for Health Research (NIHR) funded study will measure the effectiveness of two tests to identify group B Strep bacteria in late pregnancy or labour compared with the current approach of identifying pregnant women with ‘risk factors’ for their newborn developing the infection.

The trial will involve 80 hospitals in England, Wales and Scotland and the results will inform future pregnancy care policy in the UK.

A devastating disease

Dr Tom Nutt, our chief executive, said: “Group B Strep can be a devastating disease, as Daisey-May’s story below illustrates. Finding the best way to prevent this in the future is a very welcome step. We're pleased to see this programme getting underway and will follow its progress with interest.”

The UK currently does not routinely test pregnant women for group B Strep and uses a ‘risk-based’ prevention strategy. There is ongoing debate as to which prevention strategy would be better for the UK. This ground-breaking trial should resolve this debate.

The bacteria are present in about one in five pregnant women, usually causing no harm to the carrier, but may be passed unknowingly from a mother to her baby around birth. In the vast majority of cases babies will be unaffected, but one in 1,750 newborn babies will develop a group B Strep infection. One in 19 of these babies will die and one in 14 survivors will be left with long-term disability. It can be especially dangerous to babies born preterm. 

Group B Strep infections in newborn babies can usually be prevented by giving antibiotics (usually penicillin) through a vein to women during labour, which reduces the risk by up to 90 per cent.

Rise in cases

Since 2000, there has been a rise of almost a third (31 per cent) in the rate of group B Strep infections in babies under three months of age, despite ‘risk-based’ prevention guidelines being introduced in 2003. Research has shown that the current approach is not very accurate. Sixty five per cent of UK newborn babies who develop group B Strep infections have mothers who had no risk factors and 70 per cent of women who do have risk factors do not actually carry the bacteria and are therefore unnecessarily given antibiotics.

The trial will look at the effectiveness of two different tests – a lab-based test at 35 to 37 weeks of pregnancy, compared with a ‘bedside test’ at the start of labour.  It is known that some women who test positive for group B Strep in pregnancy will not still carry the bacteria by the time they give birth. The work is being led by Dr Kate Walker, Clinical Assistant Professor of Obstetrics, and Professor Jane Daniels, Professor of Clinical Trials at the University of Nottingham’s School of Medicine, and includes researchers from the Universities of Nottingham, Warwick, Lancaster and City of London, and the charities, National Childbirth Trust (NCT) and Group B Strep Support.

Campaigning for 20 years

The charity, Group B Strep Support, has been campaigning for better prevention of this infection for over 20 years. Founder and Chief Executive, Jane Plumb MBE, said: “The current UK policy on group B Strep is not working. The number of babies suffering group B Strep infections has risen not fallen despite the introduction of the risk-based prevention strategy in 2003. 

“After routine testing was introduced in the United States, the rate dropped by over 80 per cent and their rate of early-onset GBS infections (those in the first six days of life) is now less than half that of the UK. If the rate was reduced in the UK in the same way, we could prevent group B Strep infections in approximately 350 babies every year, saving 15 babies’ lives and protecting another 15 from life-changing disability. The results of this important trial will drive improvements in UK policy and lead to fewer babies and their families suffering the trauma that group B Strep infection can bring.”

Daisey-May’s story

Bethany Foss had not heard of group B Strep when she was admitted to the Royal Devon and Exeter Hospital to give birth. Bethany believes her daughter’s future would have been very different if she had been tested for group B Strep. Bethany’s daughter, Daisey-May Moore, was born on 30 October 2018 at 38 weeks, weighing 5lb 6oz. It soon became clear that she was seriously ill.

Bethany said: “Daisey-May seemed absolutely fine at first and was with me on the ward, but after 24 hours I noticed that she was grunting when she breathed. Soon after, I was told she had group B Strep septicaemia and meningitis and to prepare for the worst. It was the worst time of our lives. We were in total shock and disbelief as to how our baby could have been born so normal and perfect, then in the space of 24 hours be so near to death. 

“We ended up being moved to a different hospital, which was better equipped, but that was hard for us as we were then even further away from our other two children (Noah, 3, and Leo, 2).  Every day felt like a miracle and eventually they stabilised Daisey-May enough to take her off her ventilator and to everyone’s amazement she started breathing."

“We know from an MRI scan that Daisey-May’s brain has been very badly damaged. We don’t know yet how she will be affected in the future and what she will and won’t be able to do. She also has epilepsy and is on three different medications to control her seizures,” Bethany continued."

Daisey-May was in hospital for three weeks altogether, coming home on 25 November 2018, where she is now being looked after by her parents with the help of specialist care.

“We’re grateful for every day with Daisey-May, and everything she does is amazing, but we’d not heard of group B Strep until Daisey-May’s birth, despite her being our third child. I was never offered information or a test for group B Strep when I was pregnant, whereas this would have been done automatically in most developed countries. The whole experience has been highly traumatic. Nobody should have to have discussions about their new baby’s life when the infection they’re suffering from could so easily have been prevented,” continued Bethany.

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