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Induction of Immunogenicity With Different Doses of TreeMATA in Subjects Allergic to Tree Pollen

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00113750
Recruitment Status : Completed
First Posted : June 13, 2005
Last Update Posted : June 17, 2010
Information provided by:
Allergy Therapeutics

Brief Summary:
Tree MATA (modified pollen allergen tyrosine adsorbate) has been developed to provide pre-seasonal specific immunotherapy for patients with hypersensitivity to tree (birch, alder, and hazel) pollen. Different doses of Tree MATA will be administered and immunological changes following this treatment will be assessed.

Condition or disease Intervention/treatment Phase
Type I Hypersensitivity Biological: TreeMATA MPL Phase 2

Detailed Description:

Tree MATA MPL has been developed to provide pre-seasonal specific immunotherapy for patients with proven type I hypersensitivity to tree (birch, alder, and hazel) pollen.

The tree pollen extract is modified with glutaraldehyde to produce the active ingredient, an allergoid. This modification reduces the reactivity of the extract with IgE antibody, thus reducing the risk of side effects. However, a simultaneous reduction in other important immunological properties, such as IgG and T cell reactivities, is not seen.

MPL (Monophosphoryl Lipid A), a purified, detoxified glycolipid derived from the cell wall of Salmonella minnesota, is included in the product formulation as an adjuvant to increase the immunogenic effect of the product and to enhance the switch from an allergen-specific TH2 to a TH1-like T cell profile.

The purpose of this study is to assess specific immunological changes (IgG, IgG1, IgG4 and IgE) in allergic subjects following 2 subcutaneous injections of different doses of study medication (Tree MATA) or placebo administered 3 weeks apart. The immunological changes will be used to assess the performance of the R7 IgG reactivity assay over a range of clinically efficacious doses.

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Study Type : Interventional  (Clinical Trial)
Enrollment : 70 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single
Primary Purpose: Treatment
Official Title: A Multicenter, Single-Blind, Placebo-Controlled, Phase 2 Study to Evaluate the Induction of Immunogenicity With Different Doses of Tree MATA in Subjects Allergic to Tree Pollen
Study Start Date : July 2005
Study Completion Date : December 2005

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Allergy

Primary Outcome Measures :
  1. Post-injection antibody response to birch

Secondary Outcome Measures :
  1. Adverse Events (AEs)
  2. Clinical laboratory evaluations
  3. Vital signs

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 50 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Females of childbearing potential may enter the study if they have a negative urine pregnancy test and they have been practicing adequate contraception for 3 months prior to the study and continue to do so during the study
  • History of at least 1 season of moderate to severe seasonal rhinoconjunctivitis without bronchial asthma due to an IgE mediated allergy to pollen from trees
  • Positive skin prick test to birch, hazel and alder pollen allergen extract
  • Positive skin prick test to positive histamine control
  • Negative skin prick test to negative control
  • Specific IgE for birch with class >= 2
  • Moderate/severe allergy symptoms in the past tree season
  • Spirometry at Screening demonstrates FEV1 >= 80% predicted and FEV1/FVC >= 70%.

Exclusion Criteria:

  • History or presence of acute or subacute atopic dermatitis, chronic dermatitis, urticaria factitia, or urticaria due to physical/chemical influence or any other skin conditions which might interfere with the interpretation of skin prick test results
  • Visual inspection of the forearms indicates potential problems with the conduct or interpretation of the screening skin prick tests
  • History of bronchial asthma, COPD, or other chronic condition of the lower respiratory tract
  • History or presence of diabetes, cancer or any clinically significant cardiac, metabolic, renal, hepatic, gastrointestinal, dermatologic, venereal, hematologic, neurologic or psychiatric diseases or disorders
  • Any clinically significant abnormal laboratory value at Visit 1
  • Clinically relevant sensitivity to any common perennial allergen: house dust mites, molds, or epithelia. Subjects may be enrolled in the study if they test positive, but have no current symptoms to perennial allergens
  • Clinically relevant sensitivity to summer/autumn flowering plants and grasses: Grass pollen mix, rye, plantain, orache, nettle, mugwort, bermuda grass, and ragweed. Subjects may be enrolled in the study if they test positive, but have no current symptoms to these summer/autumn allergens.
  • History of auto-immune diseases or rheumatoid diseases
  • Subject not allowed to receive adrenalin
  • Subject has disorder of tyrosine metabolism
  • Subject with diseases interfering with the immune response and have received medication, which could influence the results of this study
  • Subject has acute or chronic infection
  • History of anaphylaxis
  • History of angioedema
  • History of hypersensitivity to the excipients of the study medication
  • History of immunotherapy with tree allergen extracts
  • Current therapy with ß-blockers
  • Currently receiving anti-allergy medication or other medications with antihistaminic activity
  • Subject has a positive screening test to drugs of abuse at Visit 1
  • Subject received investigational medication in a clinical research trial within the last 3 months
  • Subject cannot communicate reliably with the Investigator or who are not likely to cooperate with the requirements of the study
  • Subject is pregnant or lactating
  • Use of prohibited medications or inadequate washout periods prior to screening

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00113750

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United States, California
Southern California Research
Mission Viejo, California, United States, 92691
San Jose Clinical Research, Inc.
San Jose, California, United States, 95128
United States, Georgia
Rx Research
Woodstock, Georgia, United States, 30188
United States, Iowa
Iowa Clinical Research Corporation
Iowa City, Iowa, United States, 52240
United States, New Jersey
The Medical Center at Teaneck
Teaneck, New Jersey, United States, 07666
United States, Oregon
Clinical Research Institute of Southern Oregon, PC
Medford, Oregon, United States, 97504
United States, Pennsylvania
Asthma and Allergy Research Associates
Upland, Pennsylvania, United States, 19013
United States, Washington
Bellingham Asthma, Allergy & Immunology Clinic
Bellingham, Washington, United States, 98225
A.S.T.H.M.A., Inc.
Seattle, Washington, United States, 98105
Pulmonary Consultants
Tacoma, Washington, United States, 98405
Sponsors and Collaborators
Allergy Therapeutics
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Study Chair: Karl Jürgen Fischer von Weikersthal-Drachenberg, MD Allergy Therapeutics
Layout table for additonal information Identifier: NCT00113750    
Other Study ID Numbers: TreeMATAMPL201
First Posted: June 13, 2005    Key Record Dates
Last Update Posted: June 17, 2010
Last Verified: June 2010
Keywords provided by Allergy Therapeutics:
Specific Immunotherapy
Additional relevant MeSH terms:
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Hypersensitivity, Immediate
Immune System Diseases