January 14, 2026

Rethinking “steroid-resistant” childhood nephrotic syndrome

For many families who face childhood nephrotic syndrome, hearing the term “steroid-resistant” can be daunting. This label is often associated with a more challenging disease journey and future kidney health concerns. However, new research out of the Hospital for Sick Children (SickKids) in Toronto shows that this is not always the case, especially when considering overall treatment response.

Using medical records for over 1,100 children with nephrotic syndrome, researchers challenged conventional definitions related to nephrotic syndrome management. They sought to examine how these labels relate to real long-term kidney health outcomes.

They found that most children responded well to conventional steroid treatment. However, of those who were labelled ‘steroid-resistant’, nearly three quarters responded well to alternative treatment strategies.

More importantly, children who responded to any effective treatment had positive long-term kidney outcomes. In fact, none of the children who were labelled ‘steroid-resistant’ and went into remission after an alternative therapy developed chronic kidney disease within the study period.

Taken as a whole, this study highlights that response to any treatment is more valuable than labels of resistance to specific therapies.

By focusing on overall treatment response rather than steroid sensitivity alone, clinicians can provide patients and families more accurate and helpful information. For patients and their families navigating these diagnoses, this research provides some reassurance that ‘steroid-resistant’ doesn’t necessarily link directly to poorer kidney health. Instead, it suggests a need to change treatment strategies.

As nephrotic syndrome care continues to evolve, this work supports a more nuanced, outcome-focused approach that centres patient’s long-term kidney health and overall wellbeing.

This research was supported by The Kidney Foundation of Canada.