Is Tezepelumab effective to treat HES with cardiac involvement?

Question

Hello doctor,

I was diagnosed with hypereosinophilic syndrome (HES), and my recent echocardiogram showed signs of eosinophilic myocarditis. My doctor suggested starting Tezspire to help control my eosinophil levels and reduce inflammation. How effective is Tezspire in treating HES with cardiac involvement, and are there any risks of worsening heart inflammation? Would I need additional monitoring, such as cardiac MRIs or blood eosinophil counts, while on this medication? Are there alternative treatments that might be more effective in my case?

Please help.

Answer 1

Hello,

Welcome to icliniq.com.

I understand your concern.

Cardiac involvement in hypereosinophilic syndrome (HES) is a recognized complication. Here are a few things one needs to know:

Treatment typically involves corticosteroids and monoclonal antibodies, such as Tezepelumab (Tezspire).
While specific research on Tezepelumab's efficacy in HES patients with cardiac manifestations is limited, its mechanism of action is reducing eosinophil activity and subsequent inflammation and fibrosis. It suggests potential therapeutic benefits.
Patient monitoring during treatment usually includes serial eosinophil counts and echocardiograms to assess cardiac function. Cardiac magnetic resonance imaging (cMRI) may be performed to evaluate the extent of cardiac involvement, inflammation, and fibrosis when further detailed imaging is warranted.
Corticosteroids often induce clinical improvement in HES. Monoclonal antibodies like Tezepelumab may be employed to achieve further therapeutic gains. In refractory cases, interleukin inhibitors may be considered as an alternative or adjunctive therapy.

I hope this has helped you.

Please feel free to reach out to me again if you have further queries.

Thank you.