Abstract
Polymerized allergoids coupled to nonoxidized mannan (PM-allergoids) are novel allergen preparations used for immunotherapy. To evaluate PM-allergoids as an alternative immunotherapy for dogs with canine atopic dermatitis (cAD) associated with serological responses to Dermatophagoides farinae allergens. Sixteen dogs with history and clinical signs of cAD; positive on serum allergen specific IgE testing to D. farinae. Twelve dogs were, in addition, positive to Acarus siro and/or Lepidoglyphus destructor. A prospective pilot study with no control group. PM-allergoids were administered by subcutaneous injection over a 10 month period. A pruritus Visual Analog Scale (pVAS) and medication scores were evaluated. Adverse reactions were recorded. The median value of the pVAS of the dogs decreased from 0.6 to 0.2 with a median of 67% improvement over the first three months (P<0.0001). The individual improvement for each dog was greater than 60%. No major adverse effects were observed. Allergen-specific immunotherapy using an allergoid coupled to nonoxidized mannan may be an effective alternative for the management of cAD.
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