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CompletedNCT00133159Updated May 18, 2021

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

A Phase 2 interventional study of Grass MATAMPL in Type I Hypersensitivity, sponsored by Allergy Therapeutics. Completed at 3 sites in Canada. Open to participants aged 18 Years to 50 Years. Per ClinicalTrials.gov, last updated 2021-05-18.

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

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. GrassMATAMPL has been developed to provide pre-seasonal specific immunotherapy for patients with an allergy to grass pollen (hay fever). The purpose of this double-blind Phase IIb study is to assess the tolerability and immunogenicity of different doses of GrassMATAMPL in volunteers allergic to grasses and rye pollen.

02

Conditions studied

  • Type I Hypersensitivity

Keywords

  • Allergy
  • Specific Immunotherapy
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

  • positive skin prick test for grass and rye allergen
  • Specific IgE for grass and rye 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 grass and rye
  • Males or non-pregnant, non-lactating females who are or naturally or surgically sterile. Females of have a confirmed absence of pregnancy according to a negative urine pregnancy test and must be using an acceptable method.
  • Spirometry at Screening demonstrates >= 80% predicted and FEV1/FVC >= 70%

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
  • Patient has 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, hematologic diseases or disorders
  • Recent clinically significant history (within 2 years) of hepatic gastrointestinal, dermatologic, venereal, neurologic or psychiatric diseases or disorders
  • Any clinically significant (as determined by the investigator) abnormal laboratory value
  • Perennial allergens: clinically relevant sensitivity against house dust mites, molds, and epithelia
  • Patient has clinically relevant sensitivity against the following summer/autumn season flowering plants: plantain, orache, nettle, mugwort, Bermuda grass, or ragweed.
  • Secondary alteration at the affected organ
  • History of diseases and/or rheumatoid diseases
  • Patient is taking b-blockers
  • 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
  • Documented evidence of acute or significant chronic infection
  • History of anaphylaxis
  • Documented history of angioedema
  • to in the study medications
  • Previous or current immunotherapy with comparable grass/rye 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
  • Patient is pregnant or planning pregnancy and/or lactating
  • Patient has received treatment with preparation containing MPL® during the past 12 months
  • Any systemic disorder that could interfere with the evaluation of the study medication(s)
  • Clinical history of drug or alcohol abuse that would interfere with the patient's participation in the study
Terms in these criteria, in plain language(8)

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.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

FEV1

From a breathing test (spirometry): how much air you can blow out in the first second. Often given as a percentage of what is expected for your age, height and sex.

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
Double
Enrollment
68 participants

Interventions

  • BiologicalGrass MATAMPL
06

What researchers measure

Primary outcomes

  1. immunological response to the three GrassMATAMPL treatment arms compared to placebo (grass specific)

Secondary outcomes

  1. tolerability of different subcutaneous doses

  2. tolerability of the cumulative subcutaneous doses

  3. clinical chemistry and hematology

  4. number of adverse events

  5. number of adverse reactions

  6. immunological response to the three GrassMATAMPL treatment arms compared to placebo (rye specific)

07

Study locations

3 sites
  • Allied Research International Inc.
    Mississauga, Ontario L4W 1N2, Canada
  • Mississauga, Ontario L5B 1N1, Canada
  • Ottawa Allergy Research Corporation
    Ottawa, Ontario K1Y 4G2, Canada
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Sep 2005 to primary completion in Nov 2005, 1 month.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 22, 2005
First posted
Aug 23, 2005
StartActual
Sep 12, 2005
Primary completionActual
Nov 8, 2005
CompletionActual
Nov 8, 2005
Last update
May 18, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 18, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00133159
First posted
Aug 23, 2005
Start date
Sep 12, 2005
Primary completion
Nov 8, 2005
Completion
Nov 8, 2005
Last update
May 18, 2021

Study contacts

Kemi Oluwayi, MD
study chair · Allergy Therapeutics
View the source record on ClinicalTrials.gov ↗

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

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