NCT01490411

Dose Range Finding Study With rBet v1-FV - in Adult Patients With Birch Pollen-Allergic Seasonal Rhinoconjunctivitis

A Randomized, Double Blind, Placebo-Controlled, Parallel Group Study to Investigate the Relative Efficacy and Safety of Immunotherapy With rBet v1-FV Compared to Placebo in Birch Pollen-Allergic Patients With IgE-Mediated Seasonal Allergic Rhinoconjunctivitis

• Status: Completed
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 37 (actual)
• Sponsor: Allergopharma GmbH & Co. KG · Industry
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study is to find out if rBet v1-FV works to relieve Seasonal Allergic Rhinitis symptoms compared to Placebo (an inactive substance that looks like rBet v1-FV and also contains Aluminum Hydroxide but does not contain the experimental drug). rBet v1-FV is a vaccine that works by exposing your immune system to something that resembles birch. This vaccine may help to lessen your allergy symptoms during the natural birch season.

Detailed description

Type I allergy is an immune-disorder which stems from the formation of IgE antibodies against proteins and glycoproteins from plants, insects, animals and fungi, most of which are normally considered harmless. The cross-linking of specific IgE antibodies on effector cells by allergens activates an immunological cascade leading to the symptoms of Type I allergy including rhinitis, conjunctivitis, asthma, and anaphylactic shock. Allergic Rhinitis is the most common chronic atopic disease and is associated with considerable cost and co-morbidity. Seasonal allergic rhinitis (SAR), triggered by pollen from trees, grasses and weeds, is characterized by sneezing, nasal congestion, nasal itching, rhinorrhea, and pruritic, watery, red eyes. Recombinant preparations offer various advantages over those based on natural allergen extracts. Recombinant proteins can be produced in highly purified forms of pharmaceutical quality; proteins are molecularly defined thus ensuring product consistency and minimising problems related to allergen extract standardisation; preparations only include those proteins that are considered relevant for specific immunotherapy; the risk of contamination with other allergenic material is excluded; the whole production process can be designed to exclude any risk factors for the introduction of infectious agents; the relative dosages of individual components of a final preparation can be optimised to favour better clinical efficacy. Allergy vaccination (AV) mediates the immune response to allergen exposure by altering the TH2 response in favour of a TH1 T-cell response, increasing IgG production and decreasing the production of inflammatory cytokines. rBet v1-FV is an AV designed to enhance beneficial immune responses. The investigational product has demonstrated efficacy and good tolerability in one previous pivotal Phase III and two previous Phase II studies.

Conditions

• Allergic Rhinoconjunctivitis

Interventions

Type	Name	Description
DRUG	Placebo	The drug tested in this study (rBet v1-FV) was given as a subcutaneous (just under the skin) injection. Patients received at least 10 injections of Placebo or rBet v1-FV, administered in increasing doses weekly for 10 weeks, up to one of the maximum concentrations.
BIOLOGICAL	rBet v1-FV	The drug tested in this study (rBet v1-FV) was given as a subcutaneous (just under the skin) injection. Patients received at least 10 injections of Placebo or rBet v1-FV, administered in increasing doses weekly for 10 weeks, up to one of the maximum concentrations.
BIOLOGICAL	rBet v1-FV	The drug tested in this study (rBet v1-FV) was given as a subcutaneous (just under the skin) injection. Patients received at least 10 injections of Placebo or rBet v1-FV, administered in increasing doses weekly for 10 weeks, up to one of the maximum concentrations.
BIOLOGICAL	rBet v1-FV	The drug tested in this study (rBet v1-FV) was given as a subcutaneous (just under the skin) injection. Patients received at least 10 injections of Placebo or rBet v1-FV, administered in increasing doses weekly for 10 weeks, up to one of the maximum concentrations.
BIOLOGICAL	rBet v1-FV	The drug tested in this study (rBet v1-FV) was given as a subcutaneous (just under the skin) injection. Patients received at least 10 injections of Placebo or rBet v1-FV, administered in increasing doses weekly for 10 weeks, up to one of the maximum concentrations.

Timeline

• Start date: 2010-10-01
• Primary completion: 2011-04-01
• Completion: 2011-09-01
• First posted: 2011-12-13
• Last updated: 2014-01-24

Locations

1 site across 1 country: Germany