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CompletedNCT00118612Updated Feb 9, 2021

Different Doses of Tyrosine Adsorbed Tree Pollen Allergoid With Monophosphoryl Lipid A (MPL) in Patients Sensitized to Tree Pollen

A Phase 2 interventional study of Tree MATA MPL - Therapeutic Regimen and Tree MATA MPL - Intermediate dose in Type I Hypersensitivity, sponsored by Allergy Therapeutics. Completed at 1 site in Canada. Open to participants aged 18 Years to 50 Years. Per ClinicalTrials.gov, last updated 2021-02-09.

Sponsored by Allergy Therapeutics · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Sep 2005, 21 years 1 month ago, and no results have been posted to the registry.
Phase
Phase 2
Study type
Interventional
Enrollment
68
Allocation
Randomized
Ages
18 Years to 50 Years
Sex
All
01

Study summary

Allergen-specific immunotherapy (SIT), the administration of gradually increasing quantities of an allergen extract to an allergic patient, is a curative approach which directly treats the underlying allergic disease. Tree MATA MPL has been developed to provide pre-seasonal specific immunotherapy for patients with an allergy to tree pollen (hay fever).

The purpose of this double-blind Phase IIb study is to assess the tolerability and immunogenicity of different doses of Tree MATA MPL in volunteers allergic to birch, hazel and alder pollen.

Read the detailed description

Tree MATAMPL (tyrosine adsorbed tree pollen allergoid with monophosphoryl lipid A (MPL®)) has been developed to provide pre-seasonal specific immunotherapy for patients with proven type I hypersensitivity to cross-reacting tree pollens that cause rhinitis and/or conjunctivitis with or without mild to moderate asthma.

This was a phase IIb, double-blind, placebo-controlled study to assess the tolerability and immunogenicity of different doses of Tree MATA MPL in volunteers allergic to birch, hazel and alder pollen.

Sixty eight (68) volunteers were randomly assigned to one of three active treatments or placebo to receive up to 4 subcutaneous injections of either increasing doses of Tree MATAMPL or Placebo over 7 day (+1 day) interval.

The duration of the study from screening (Visit 1) to end of study (Visit 6, Post-Treatment Visit) was approximately 50 days.

02

Conditions studied

  • Type I Hypersensitivity

Keywords

  • Allergy
  • Specific Immunotherapy
  • Allergy Vaccination
  • Allergenicity
03

In context

Hypersensitivity, Immediate

82 studies on the registry are indexed under Hypersensitivity, Immediate; 7 are open to participants now.

This study's enrollment of 68 is close to the median of 70 across 66 interventional studies indexed under Hypersensitivity, Immediate.

Browse Hypersensitivity, Immediate studies →

Lead sponsor

Allergy Therapeutics is the lead sponsor of 27 studies on the registry; 1 is open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 2 (40%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients must have a positive skin prick test for birch and hazel and alder allergen.
  • Positive skin prick test to positive histamine control
  • Negative skin prick test to negative control
  • Specific IgE for birch as documented by radioallergosorbent or equivalent test with class ≥ 2
  • History of at least 1 season of moderate to severe seasonal rhinoconjunctivitis due to an IgE - mediated allergy to pollen from birch, hazel, and alder
  • Patients must score on the disease severity questionnaire as moderate or severe.
  • Males or non-pregnant, non-lactating females
  • Patients who are normally active and otherwise judged to be in good health
  • Patients must be willing and able to attend required study visits.
  • Patients must be able to follow instructions.
  • Patients must be willing and able to give written and must provide this consent.

Exclusion criteria

Exclusion Criteria:

  • Acute or subacute atopic dermatitis and/or urticaria factitia and/or urticaria due to physical or chemical influence and/or chronic dermatitis
  • Moderate to severe asthma
  • Visual inspection of the forearms indicates potential problems with the conduct or interpretation of the skin prick test; both forearms must be available for testing.
  • History or presence of diabetes, cancer or any cardiac, metabolic, renal, or hematologic diseases or disorders
  • Recent clinically significant history of hepatic, gastrointestinal, dermatologic, venereal, neurologic or psychiatric diseases or disorders
  • Any clinically significant abnormal laboratory value at Visit 1
  • Perennial allergens: clinically relevant sensitivity to house dust mites, molds, and epithelia
  • Patient has clinically relevant sensitivity to the following summer/autumn season flowering plants: plantain, orache, nettle, mugwort, Parietaria judaica, Bermuda grass, or ragweed.
  • Secondary alteration at the affected organ
  • History of diseases and/or rheumatoid diseases
  • Patient is taking ß-blockers for any indication including eye drops
  • Patient who is not allowed to receive adrenalin
  • Patients in whom tyrosine metabolism is disturbed
  • Presence of a disease with a pathogenesis interfering with the immune response and patient has received medication which could influence the results of this study
  • Acute or significant chronic infection
  • History of anaphylaxis
  • Documented history of angioedema
  • to in the study medications
  • Previous or current immunotherapy with comparable tree allergen extracts
  • Currently using anti-allergy medication and other drugs with antihistaminic activity
  • Patients currently participating in a clinical trial or who have been exposed to study medication within the last 30 days
  • Patients who cannot communicate reliably with the Investigator or who are not likely to cooperate with the requirements of the study
  • Patient is pregnant or planning pregnancy and/or lactating
  • Patient has received treatment with preparation containing MPL during the past 12 months
  • Concurrent use of any prohibited medication(s), as listed in the study protocol, or inadequate washout of any medication
  • Any systemic disorder that could interfere with the evaluation of the study medication(s)
  • Clinical history of drug or alcohol abuse, at the Investigator's discretion, that would interfere with the patient's participation in the study
  • Study site staff or immediate relatives of study site staff or other individuals who would have access to the clinical study protocol
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
68 participants (actual)

Study arms

  • Experimental
    Therapeutic Regimen

    Biological: Tree MATA MPL - Therapeutic Regimen

  • Experimental
    Intermediate dose

    Biological: Tree MATA MPL - Intermediate dose

  • Experimental
    Low dose

    Biological: Tree MATA MPL - Low dose

  • Placebo comparator
    Placebo

    Biological: Placebo

Interventions

  • BiologicalTree MATA MPL - Therapeutic Regimen

    600, 1600, 4000, 4000 SU/0.5 mL

  • BiologicalTree MATA MPL - Intermediate dose

    300, 600, 1600, 1600 SU/0.5 mL

  • BiologicalTree MATA MPL - Low dose

    300, 300, 300, 300 SU/0.5 mL

  • BiologicalPlacebo

    L-tyrosine 2% w/v , 4 injections

06

What researchers measure

Primary outcomes

  1. Immunological response to the three Tree MATA MPL treatment arms compared to placebo (birch specific)

    Efficacy was assessed based on the immunological differences between the three Tree MATA MPL treatment arms compared to placebo with respect to immunoglobulins (specific IgG, specific IgG1, specific IgG4, and specific IgE) for birch, alder, and hazel.

    Time frame: Up to two approximately 2 months

Secondary outcomes

  1. Tolerability of individual subcutaneous doses

    Time frame: Up to two approximately 2 months

  2. Tolerability of the cumulative subcutaneous doses

    Time frame: Up to two approximately 2 months

  3. safety laboratory evaluation - clinical chemistry

    Time frame: Up to two approximately 2 months

  4. safety laboratory evaluation - hematology

    Time frame: Up to two approximately 2 months

  5. safety laboratory evaluation - urinalysis

    Time frame: Up to two approximately 2 months

  6. Vital signs

    Time frame: Up to two approximately 2 months

  7. Physical examinations

    Abnormal physical examination findings were summarized by clinical significance(CS or NCS) using frequencies and percentages of patients for each body system and overall

    Time frame: Up to two approximately 2 months

  8. 12-Lead ECGs

    QRS duration, PR interval, QT interval, and QTc

    Time frame: Up to two approximately 2 months

  9. number of adverse events

    Time frame: Approximately 2 months

  10. number of adverse reactions

    Time frame: Up to two approximately 2 months

  11. immunological response to the three Tree MATA MPL treatment arms compared to placebo (alder and hazel specific)

    Time frame: Up to two approximately 2 months

07

Study locations

1 site
  • Allied Research International Inc.
    Mississauga, Ontario L4W 1N2, Canada
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 9, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00118612
Responsible party
Sponsor
First posted
Jul 12, 2005
Start date
Jul 7, 2005
Primary completion
Sep 15, 2005
Completion
Sep 15, 2005
Last update
Feb 9, 2021

Study contacts

Deepen Patel, MD
principal investigator · Allied Research International Inc.

Oversight

FDA-regulated drug
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Feb 2021. You cannot join it, but the record below documents what was studied.

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