Quality of Life in Allergic Rhinoconjunctivitis Patients Treated With Dialyzable Leukocyte Extracts

DLE are heterogenous mixtures of peptides under 10 kilo Daltons (kDa) obtained after disruption of peripheral blood leukocytes from healthy human donors. DLE have been reported to improve clinical response in allergies, such as asthma and atopic dermatitis.

The therapeutic effect of DLE is related to an immune modulatory effect that changes innate signaling pathways, such as Toll Like Receptors, and Nuclear Factor -kappa B; production of cytokines might also be modified with the use of DLE, including Tumor Necrosis Factor a, Interleukin (IL)-6, and induction of Interferon-g secretion, driving immune response to a T-helper Th1 immune-regulatory response, and thus helping to reduce allergy symptoms.

Inclusion criteria

• Confirmed diagnosis of symptomatic seasonal or perennial allergic rhinitis
• Active rhinoconjunctivitis
• Six week standard treatment before inclusion
• Confirmation of an Immunoglobulin E-mediated response through previous positive skin or in vitro allergen testing

Exclusion criteria

• Other immunological immune-mediated diseases such as autoimmune diseases and cancer.
• Unstable chronic disease, such as diabetes, cardiac diseases, chronic kidney failure, chronic hepatic disease.