Real-world treatment utilization in adults with chronic inflammatory demyelinating polyneuropathy in the United States

Background: Management of chronic inflammatory demyelinating polyneuropathy (CIDP) is challenged by heterogeneity in severity, comorbidities, potential adverse effects, and treatment accessibility. This study aimed to elucidate treatment utilization among patients with CIDP in the United States (US) to identify potential unmet needs. Methods: Adult patients with CIDP were identified using Komodo Health's Healthcare Map™ (January 2016-December 2020). Descriptive statistics related to utilization of CIDP treatments over 1-year post-index were analyzed. Among patients who used immunoglobulin (Ig), chronic Ig users were defined as patients with ≥8 Ig courses, and intermittent Ig users as patients with 60 mg/day oral steroids on average over the 1-year post-index continued to use concomitant CIDP treatment, most commonly Ig. Conclusion: Steroids and Ig were mainstay treatments among patients with CIDP. A substantial proportion of Ig users were chronic users who also received other CIDP therapies, with steroids being most common. This suggests a potentially pronounced burden among patients treated with frequent Ig and steroids.