r /> and female patients aged 18 to 65 and suffering from mild to moderate perennial allergic rhinitis due
to house dust mite allergy. Upon entry into the study, the allergic status of the individual
participants was recorded by the conjunctival provocation test, a commonly used allergy test. The
study participants were randomized into 4 treatment groups with 10 patients each and received 6
weekly subcutaneous injections of either i) 300 ?g CYT003-QbG10 alone, ii) 300 ?g CYT003-QbG10
plus a low dose of house dust mite allergen extract (designated CYT005-AllQbG10), iii) a low dose of
house dust mite allergen extract alone, or iv) placebo. The house dust mite allergen dose
administered in treatment arms ii) and iii) was 10-times lower than that usually applied in
conventional desensitization therapy. Two weeks after the last dose, the allergic status of the
patients was again assessed by the conjunctival provocation test, which served as the primary
efficacy parameter of the study. All 40 patients were included into the analysis.

About CYT003-QbG10
CYT003-QbG10 is an immunotherapeutic product in development for the treatment of allergy, asthma
and atopic dermatitis. It consists of the ImmunodrugTM QbG10 which is comprised of the virus-like
particle Qb filled with a synthetic immunostimulatory DNA sequence called G10. CYT003-QbG10 is
designed as a disease-modifying treatment and aims to induce a potent Th1 type immune response
in order to suppress an “allergic” Th2 type immune response. An earlier, open-label phase IIa study
with CYT003-QbG10 combined with an allergen extract of house dust mites at a standard dose
showed excellent long-term efficacy in patients allergic to dust mites. Furthermore, a placebocontrolled
phase IIa study with CYT003-QbG10 showed significant improvement of allergy symptoms
in hay fever patients. CYT003-Qb
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