Conclusions
Sustained clinical efficacy is achieved 10 years after completion of depigmented‐polymerized HDM, however, these findings were observed only if patients are treated for at least 3 years.Patients included in a double‐blind placebo‐controlled AIT study with dpg‐pol HDM allergen extract were reviewed at completion of the perennial treatment and 10‐year follow‐up (10y‐FU). Sustained clinical efficacy is achieved 10 years after completion of depigmented‐polymerized HDM, however, these findings were observed only if patients are treated for at least 3 years.