Good news for younger children suffering from the uncommon but debilitating gastrointestinal condition eosinophilic esophagitis (EoE): Data from this trial led to a January US Food and Drug Administration (FDA) approval of the anti-inflammatory biologic for patients aged 1-11 years weighing at least 15 kg.
In addition, the trial, published in The New England Journal of Medicine, found that a higher-exposure dupilumab regimen (approximating the trough concentration of a 300-mg dose administered once weekly versus every 2 weeks) improved key secondary end points, according to gastroenterologist Mirna Chehade, MD, MPH, AGAF, a professor of pediatrics at Icahn School of Medicine at Mount Sinai and Mount Sinai Kravis Children’s Hospital in New York City, and colleagues.
Dr. Mirna Chehade
In 2022, the FDA approved the drug for those aged 12 or older weighing at least 40 kg.
“Left untreated or inadequately treated, EoE can progress to esophageal narrowing and strictures, leading to increased risk of food impactions and the need for esophageal dilations,” Dr. Chehade said in an interview. “Therefore, it’s important that children with EoE have the FDA-approved treatment option based on our study that can address their underlying disease starting at a young age.”
She added that dupilumab has the exciting potential to transform the standard of care for many young children living with EoE. “There are, however, factors to consider before switching a child to dupilumab — all related to the child’s specific medical history and therefore the perceived potential benefits from the drug.”
Commenting on the study but not involved in it, Toni Webster, DO, a pediatric gastroenterologist at Cohen Children’s Medical Center in Queens, New York, and an assistant professor at the Zucker School of Medicine at Hofstra/Northwell in Hempstead, New York, said, “Like many allergic diseases, EoE is on the rise and, unfortunately, is affecting our children at alarming rates and at earlier ages. Given its efficacy and side-effect profile, dupilumab will vastly change our ability to treat EoE, especially for families who find diet and daily medication to be a challenge.”
Dr. Toni Webster
Dr. Webster noted that an elimination diet is a rigorous choice that is often difficult to navigate. And the oral administration of off-label choices, proton pump inhibitors, and swallowed topical steroids, as well as the newly FDA-approved oral budesonide therapy (Eohilia), may also be challenging because many children have precluding aversions to oral therapy. “Regardless of age, treatment choice for EoE should be a good fit that is a plausible addition to a family’s lifestyle,” she said.
Blocking interleukin 4 and interleukin 13 inflammatory pathways, dupilumab has shown efficacy in other atopic diseases such as eczema. It broadly inhibits most aspects of type 2 inflammation and that action is reflected in its histologic and transcriptomic effects in affected tissues, Dr. Chehade and associates explained.