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Phase 2 Study in Adults Sensitized to Short Ragweed

Primary Purpose

Allergic Rhinitis

Status
Withdrawn
Phase
Phase 2
Locations
Study Type
Interventional
Intervention
Standardized Allergenic Extract, Short Ragweed (Ambrosia artemisiifolia)
Placebo
Sponsored by
Antigen Laboratories, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Allergic Rhinitis focused on measuring SLIT, Immunotherapy, Short ragweed, SAR, Seasonal allergic rhinitis

Eligibility Criteria

18 Years - 55 Years (Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria

  • Male and female patients between the ages of 18 and 55 years (inclusive.
  • Written informed consent to participate in the study.
  • Documented allergy to short ragweed pollen as demonstrated by a positive epicutaneous skin test (wheal >3 mm) and symptoms of allergic rhinitis during the two previous short ragweed seasons.
  • Female subjects of childbearing potential, defined as not surgically sterile or at least 2 years postmenopausal, must agree to use one of the following forms of contraception from screening through the 4 week follow-up period following the last dose of Clinical Trial Material (CTM): hormonal (oral, implant, or injection) begun >30 days prior to screening, barrier (condom, diaphragm with spermicide), Intrauterine Device (IUD), or vasectomized partner (6 months minimum).
  • No clinically significant abnormal findings on the physical examination, with the exception of head, eyes, ears, nose and throat (HEENT) findings consistent with allergic rhinitis, medical history, or clinical laboratory results during screening which, in the opinion of the Investigator, would jeopardize the safety of the subject or impact the validity of the study results

Exclusion Criteria:

  • Previous allergen immunotherapy (subcutaneous immunotherapy (SCIT), oral immunotherapy, sublingual immunotherapy (SLIT), or recombinant peptide) for short ragweed within 24 months of the Screening Visit.
  • History of severe allergic reaction requiring medical intervention.
  • Intolerance of or severe allergic reaction to previous immunotherapy (SCIT, oral immunotherapy, SLIT, or recombinant peptide).
  • Allergy to any of the non-antigen ingredients in the study drug formulation, including, but not limited to, Food, Drug and Cosmetic (FD&C) Yellow #5, sodium chloride, sodium bicarbonate, and glycerine.
  • History of asthma requiring daily medication.
  • Subjects receiving anti-IgE monoclonal antibodies.
  • Congenital immune deficiency or acquired immune suppression. Causes of acquired immune suppression may include, but are not limited to, systemic illnesses such as malignancy and infection, the use of medications such as corticosteroids and chemotherapeutic agents, and radiation therapy.
  • History of organ transplant, hematologic malignancy, autoimmune disease, myocardial infarction, or congestive heart failure.
  • History of clinically significant gastrointestinal, renal, hepatic, neurologic, hematologic, endocrine, oncologic, pulmonary, psychiatric, or cardiovascular disease, or any other condition which, in the opinion of the Investigator, would jeopardize the safety of the subject or impact the validity of the study results.
  • Inability or unwillingness to stop using drugs that may inhibit the wheal-and-flare reaction or rhinitic response prior to the study and for the duration of dosing CTM (with the exception of protocol-specified rescue medications provided by the study site for use after Study Day 0).
  • Inability or unwillingness to stop using drugs that may inhibit the ability to treat a severe allergic adverse event. This includes, but is not limited to: beta blockers such as atenolol (Tenormin), metoprolol (Lopressor, Toprol-XL) and propranolol (Inderal, Inderal LA) for 14 days prior to Study Day 0 and for the duration of the study
  • Female subjects who are trying to conceive, are pregnant, or are lactating.
  • Positive serum pregnancy test at screening or a positive human chorionic gonadotropin (HCG) urine test on Study Day 0 prior to administration of study drug for women of childbearing potential.
  • Positive blood screen for HIV, Hepatitis B surface antigen (HbSAg), or Hepatitis C.
  • History of alcohol or drug abuse within the year prior to the Screening Visit, or current evidence of substance dependence or abuse.
  • Participation in a clinical trial or receipt of a non-FDA approved therapy within 30 days prior to the Screening Visit.

Sites / Locations

    Arms of the Study

    Arm 1

    Arm 2

    Arm 3

    Arm Type

    Active Comparator

    Active Comparator

    Placebo Comparator

    Arm Label

    Dose Group A

    Dose Group B

    Placebo

    Arm Description

    Standardized Allergenic Extract, Short Ragweed (Ambrosia artemisiifolia)

    Standardized Allergenic Extract, Short Ragweed (Ambrosia artemisiifolia)

    Outcomes

    Primary Outcome Measures

    Average of Total Symptom Scores

    Secondary Outcome Measures

    Full Information

    First Posted
    April 29, 2008
    Last Updated
    January 8, 2014
    Sponsor
    Antigen Laboratories, Inc.
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    1. Study Identification

    Unique Protocol Identification Number
    NCT00670384
    Brief Title
    Phase 2 Study in Adults Sensitized to Short Ragweed
    Official Title
    A Phase 2 Randomized, Double-Blind, Placebo-Controlled, Parallel Group, Dose-Ranging Study of Sublingual Immunotherapy in Adults Sensitized to the Standardized Allergenic Extract, Short Ragweed (Ambrosia Artemisiifolia)
    Study Type
    Interventional

    2. Study Status

    Record Verification Date
    January 2014
    Overall Recruitment Status
    Withdrawn
    Why Stopped
    No funding.
    Study Start Date
    undefined (undefined)
    Primary Completion Date
    undefined (undefined)
    Study Completion Date
    undefined (undefined)

    3. Sponsor/Collaborators

    Responsible Party, by Official Title
    Sponsor
    Name of the Sponsor
    Antigen Laboratories, Inc.

    4. Oversight

    Data Monitoring Committee
    No

    5. Study Description

    Brief Summary
    The purpose of this study is to identify an effective dose of allergen-specific immunotherapy for short ragweed (Ambrosia artemisiifolia) administered by an oral/sublingual route.

    6. Conditions and Keywords

    Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
    Allergic Rhinitis
    Keywords
    SLIT, Immunotherapy, Short ragweed, SAR, Seasonal allergic rhinitis

    7. Study Design

    Primary Purpose
    Treatment
    Study Phase
    Phase 2
    Interventional Study Model
    Parallel Assignment
    Masking
    ParticipantInvestigatorOutcomes Assessor
    Allocation
    Randomized
    Enrollment
    0 (Actual)

    8. Arms, Groups, and Interventions

    Arm Title
    Dose Group A
    Arm Type
    Active Comparator
    Arm Description
    Standardized Allergenic Extract, Short Ragweed (Ambrosia artemisiifolia)
    Arm Title
    Dose Group B
    Arm Type
    Active Comparator
    Arm Description
    Standardized Allergenic Extract, Short Ragweed (Ambrosia artemisiifolia)
    Arm Title
    Placebo
    Arm Type
    Placebo Comparator
    Intervention Type
    Biological
    Intervention Name(s)
    Standardized Allergenic Extract, Short Ragweed (Ambrosia artemisiifolia)
    Intervention Description
    Sublingual drops
    Intervention Type
    Biological
    Intervention Name(s)
    Placebo
    Intervention Description
    Sublingual drops
    Primary Outcome Measure Information:
    Title
    Average of Total Symptom Scores
    Time Frame
    20 weeks

    10. Eligibility

    Sex
    All
    Minimum Age & Unit of Time
    18 Years
    Maximum Age & Unit of Time
    55 Years
    Accepts Healthy Volunteers
    No
    Eligibility Criteria
    Inclusion Criteria Male and female patients between the ages of 18 and 55 years (inclusive. Written informed consent to participate in the study. Documented allergy to short ragweed pollen as demonstrated by a positive epicutaneous skin test (wheal >3 mm) and symptoms of allergic rhinitis during the two previous short ragweed seasons. Female subjects of childbearing potential, defined as not surgically sterile or at least 2 years postmenopausal, must agree to use one of the following forms of contraception from screening through the 4 week follow-up period following the last dose of Clinical Trial Material (CTM): hormonal (oral, implant, or injection) begun >30 days prior to screening, barrier (condom, diaphragm with spermicide), Intrauterine Device (IUD), or vasectomized partner (6 months minimum). No clinically significant abnormal findings on the physical examination, with the exception of head, eyes, ears, nose and throat (HEENT) findings consistent with allergic rhinitis, medical history, or clinical laboratory results during screening which, in the opinion of the Investigator, would jeopardize the safety of the subject or impact the validity of the study results Exclusion Criteria: Previous allergen immunotherapy (subcutaneous immunotherapy (SCIT), oral immunotherapy, sublingual immunotherapy (SLIT), or recombinant peptide) for short ragweed within 24 months of the Screening Visit. History of severe allergic reaction requiring medical intervention. Intolerance of or severe allergic reaction to previous immunotherapy (SCIT, oral immunotherapy, SLIT, or recombinant peptide). Allergy to any of the non-antigen ingredients in the study drug formulation, including, but not limited to, Food, Drug and Cosmetic (FD&C) Yellow #5, sodium chloride, sodium bicarbonate, and glycerine. History of asthma requiring daily medication. Subjects receiving anti-IgE monoclonal antibodies. Congenital immune deficiency or acquired immune suppression. Causes of acquired immune suppression may include, but are not limited to, systemic illnesses such as malignancy and infection, the use of medications such as corticosteroids and chemotherapeutic agents, and radiation therapy. History of organ transplant, hematologic malignancy, autoimmune disease, myocardial infarction, or congestive heart failure. History of clinically significant gastrointestinal, renal, hepatic, neurologic, hematologic, endocrine, oncologic, pulmonary, psychiatric, or cardiovascular disease, or any other condition which, in the opinion of the Investigator, would jeopardize the safety of the subject or impact the validity of the study results. Inability or unwillingness to stop using drugs that may inhibit the wheal-and-flare reaction or rhinitic response prior to the study and for the duration of dosing CTM (with the exception of protocol-specified rescue medications provided by the study site for use after Study Day 0). Inability or unwillingness to stop using drugs that may inhibit the ability to treat a severe allergic adverse event. This includes, but is not limited to: beta blockers such as atenolol (Tenormin), metoprolol (Lopressor, Toprol-XL) and propranolol (Inderal, Inderal LA) for 14 days prior to Study Day 0 and for the duration of the study Female subjects who are trying to conceive, are pregnant, or are lactating. Positive serum pregnancy test at screening or a positive human chorionic gonadotropin (HCG) urine test on Study Day 0 prior to administration of study drug for women of childbearing potential. Positive blood screen for HIV, Hepatitis B surface antigen (HbSAg), or Hepatitis C. History of alcohol or drug abuse within the year prior to the Screening Visit, or current evidence of substance dependence or abuse. Participation in a clinical trial or receipt of a non-FDA approved therapy within 30 days prior to the Screening Visit.

    12. IPD Sharing Statement

    Learn more about this trial

    Phase 2 Study in Adults Sensitized to Short Ragweed

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