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A Single-Center Evaluation of the Pattern of Allergic Signs and Symptoms During 4 Weeks in Ragweed Season

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: September 23, 2009
Last Update Posted: September 23, 2009
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.
Information provided by:
ORA, Inc.
The study was designed to evaluate the pattern of seasonal allergic signs and symptoms consistent with ongoing ocular allergic inflammation during ragweed season. It was hypothesized that a pattern of ongoing ocular allergic inflammation existed in certain subjects.

Allergic Conjunctivitis

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective

Further study details as provided by ORA, Inc.:

Primary Outcome Measures:
  • Diary Data [ Time Frame: 4 weeks ]

Enrollment: 34
Study Start Date: August 2008
Study Completion Date: September 2009
Primary Completion Date: September 2008 (Final data collection date for primary outcome measure)
Detailed Description:
Subjects who had a positive skin test to ragweed within 24 months of Visit 1 were instructed to complete a diary, which assessed their allergic signs and symptoms 3 times a day for 4 weeks. During the in-office visits, subjects were asked to completed a quality of life questionnaire, as well as a retrospective and/or prospective eye allergy questionnaire.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
A community sample of subjects with allergic conjunctivitis and at least 18 years of age were enrolled into the study.

Inclusion Criteria:

  • Subjects must:

    1. be willing and able to read, sign, and date the informed consent and HIPAA documents prior to initiation of Visit 1 procedures or exams;
    2. be at least 18 years of age;
    3. be willing to avoid disallowed medication, such as anti-allergy therapies
    4. have a positive history of ocular allergies and a positive skin test reaction to ragweed within the past 24 months;
    5. have a calculated logMAR visual acuity score using the ETDRS Chart of 0.60 or better in each eye at Visit 1;

Exclusion Criteria:

  • Subjects may not:

    1. have preauricular lymphadenopathy or any ocular condition that could affect study parameters (particularly, clinically significant blepharitis, follicular conjunctivitis and iritis);
    2. have had any ocular infection within the last 30 days;
    3. have a positive diagnosis of moderate to severe dry eye syndrome (i.e., requiring daily use of artificial tears);
    4. wear contact lenses to each office visit; Note: Subjects will be allowed to use cold compresses.
  Contacts and Locations
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 ClinicalTrials.gov identifier (NCT number): NCT00982163

United States, Massachusetts
ORA, Inc.
North Andover, Massachusetts, United States, 01845
Sponsors and Collaborators
ORA, Inc.
Principal Investigator: H. Jerome Crampton, M.D. ORA, Inc.
  More Information

Responsible Party: Paul Gomes, Ophthalmic Research Associates
ClinicalTrials.gov Identifier: NCT00982163     History of Changes
Other Study ID Numbers: 08-003-26
First Submitted: September 22, 2009
First Posted: September 23, 2009
Last Update Posted: September 23, 2009
Last Verified: September 2009

Additional relevant MeSH terms:
Conjunctivitis, Allergic
Conjunctival Diseases
Eye Diseases
Hypersensitivity, Immediate
Immune System Diseases