Allergic bronchopulmonary aspergillosis
ICD-10 B44.8 · ICD-11 CA82.4

Recurrent ABPA: What to Do When Initial Monotherapy Fails to Achieve Treatment Targets

Allergic bronchopulmonary aspergillosis follows a relapsing course in a subset of patients. When the first-line single-agent approach does not produce the expected clinical and serological improvement at 8–12 weeks, a structured next-line protocol addresses recurrent exacerbations.

Previous therapy & failure condition

Initial therapy with oral prednisolone (monotherapy) or oral itraconazole (monotherapy) did not achieve a good response at 8–12 weeks — defined as major improvement in symptoms and chest radiographs together with at least a 20% reduction in serum total IgE.

Next-line approach — partial overview

For recurrent ABPA exacerbations, the protocol moves to a combination of two oral agents given concurrently — a corticosteroid and an antifungal — each continued over a multi-month course. The complete regimen, including agents, dosing parameters, and the full management algorithm, is available in the structured protocol below.

Response targets A good response is assessed at 8–12 weeks and requires major improvement in symptoms (Likert score or VAS ≥50%) and chest radiographs, along with at least a 20% reduction in serum total IgE.
Instant Access to Structured Evidence-Based Regimens

References

DOI: 10.1183/13993003.00061-2024

A combination of oral prednisolone and itraconazole should be used for treating recurrent (≥2 in the last 1–2 years) ABPA exacerbations (LoC: 71.4%).

Frequent: oral glucocorticoids (4 months) and itraconazole (4 months)

A good response is indicated by a major improvement in symptoms (Likert score or VAS ≥50%) and chest radiographs, along with at least a 20% reduction in serum total IgE.

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