Weight-loss jabs for children ‘are effective and help prevent mealtime battles'

South Wales Guardian

13-05-2025

Experts at the European Congress on Obesity in Malaga, Spain, presented findings showing the drugs helped severely obese youngsters shed pounds on top of the diet and lifestyle plan they were already following.
Weight-loss jabs, also known as GLP-1 receptor agonists, work by reducing food cravings and are available on the NHS for adults with a high body mass index (BMI), or via private providers.
The National Institute for Health and Care Excellence (Nice) stopped its appraisal of semaglutide (Wegovy) for managing obesity in children aged 12 to 17 after the manufacturer, Novo Nordisk, said it was unable to provide an evidence submission.
However, specialist paediatric clinics can prescribe weight-loss injections if there is a proven clinical need.
Side-effects of weight-loss drugs include nausea, diarrhoea, stomach cramps and vision problems.
Dr Annika Janson, from Karolinska University Hospital in Sweden – who presented the new research, said: 'GLP-1 drugs are increasingly used to treat obesity in adults.
'They can also be used in children from the age of 12 and clinical trials have shown children lose 5%-16% of their body weight after a year of treatment.
'However, treating children in real-life situations has challenges that don't come up in research studies.
'Children have varying degrees of obesity, co-morbidities and complications and may have faced problems in supply of the drug, financing it or taking it.
'As a consequence, it is difficult to isolate the effect of adding GLP-1 drugs to the plethora of treatments that are already available.'
To address this question, Dr Janson and colleagues added GLP-1 receptor agonists to an existing treatment programme for child obesity.
The study involved 1,126 children (52% of them boys) aged up to 16 with severe obesity who were receiving intensive health behaviour and lifestyle treatment (IHBLT) at the National Childhood Obesity Centre in Stockholm.
IHBLT involves working with children, families and schools and looks at healthy foods, meal size, meal order, screen time, exercise and psychological wellbeing.
From 2023, GLP-1 drug liraglutide was included for around one in four patients. Later on, the drug semaglutide (Wegovy) was used.
While the reduction in BMI was similar between the groups until 2022, adding a weight loss jab had an additional effect.
Some 30% on liraglutide dropped enough weight to improve their health, compared with around 27% of those treated earlier on with no jab.
While the differences do not seem big, and not all children were taking the drug at all points, it suggests a trend, Dr Janson said. She said there were better later results with semaglutide.
'Only a fraction of the children had GLP-1 drugs and most of those who did started on them six to 12 months into the treatment programme. Longer-term treatment may lead to greater improvements in BMI,' she said.
'These are just early indications but it does look as if the average effect of being a patient at our clinic has improved after adding GLP-1 drugs to the toolbox.'
She added: 'Many children with severe obesity describe hunger and a strong appetite – both of which GLP-1 receptor agonists are known to help with.
'Results beyond obesity are also important. The families reported reduced conflicts around food and improved capacity for other lifestyle adaptations.
'It was easier to stick to meals and limit snacks. Portions could be down-sized. For some children, not being hungry all the time is a new feeling.
'GLP-1 receptor agonists are clearly beneficial to many children with severe obesity and, while they won't help in all cases, more children should have access to these important medications.'
A spokesman for Novo Nordisk said: 'Novo Nordisk did not submit evidence for a Nice appraisal for semaglutide and liraglutide for managing overweight and obesity in young people aged 12 to 17 years due to a lack of utility data and risk equations in linking weight loss in adolescents to long-term outcomes.
'As such, there are significant limitations in estimating the cost-effectiveness in this patient population, utility estimates that adequately capture the full impact on their quality of life, and not enough data to support an economic model that meets the Nice reference case.
'At this time, Novo Nordisk does not intend to make an evidence submission for the appraisal of semaglutide and liraglutide for managing overweight and obesity in young people aged 12 to 17 for the use in the NHS.
'We will continue to evaluate our evidence package in consideration of supporting any potential future submission for this patient group.'