Correction to: Orphanet J Rare Dis (2021) 16:86 https://doi.org/10.1186/s13023-020-01658-4

Following the publication of the original article [1] the authors informed us of an error in the second paragraph under ‘Study population’ of the ‘Results’ section.

The paragraph should read:

“Half of the patients in the study (n = 64, 50.8%) were participants in the double-blind COMPACT study, thus were using C1-INH(SC) prophylaxis prior to continuing into the open-label study (Table 1). An additional 15 patients (11.9%) were using other forms of HAE prophylaxis (intravenous C1-INH [C1-INH[IV)] or oral danazol) within the 3-month period prior to the open-label study”.

The original article has already been updated as above.