A Pilot Monocenter Study to Assess Cellular and Soluble Biomarkers in Nasal Secretions

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: NCT00297843
Recruitment Status : Completed
First Posted : March 1, 2006
Last Update Posted : June 19, 2007
Information provided by:
Fraunhofer-Institute of Toxicology and Experimental Medicine

Brief Summary:

Allergic Rhinitis is an inflammatory disease which causes an influx of inflammatory cells and cytokines into the nasal mucosa. These biomarkers can also be found in the nasal secretions. The evaluation of these inflammatory biomarkers is of great interest as this could lead to a concept of measuring the efficacy of anti-allergic treatments by assessing the changes in nasal biomarkers after allergen challenge. To use this model as an assessment of pharmacodynamics it is crucial to evaluate the specificity and reproducibility of cellular and cytokine levels in the nasal secretions after allergen provocations.

In a 2 part repeated measurement design 20 patients with allergic rhinitis and 20 healthy subjects will undergo two 4-hour pollen exposures in an interval of 21 days.

The aim of this study is to explore the cellular and cytokine levels this allergen challenge will induce in nasal secretions and to assess if an increase in those inflammatory biomarkers is specific to the patient subgroup and whether the results are reproducible after the second allergen challenge.

Condition or disease Intervention/treatment
Seasonal Allergic Rhinitis Healthy Subjects Procedure: allergen challenge (grass pollen), nasal lavage

Study Type : Observational
Enrollment : 40 participants
Primary Purpose: Screening
Time Perspective: Cross-Sectional
Time Perspective: Prospective
Official Title: A Pilot Monocenter Study to Assess the Reproducibility and Specificity of Cellular and Soluble Biomarkers in Nasal Secretions in Patients With Allergic Rhinitis and Healthy Volunteers Following Pollen Exposure in the Fraunhofer Environmental Challenge Chamber (ECC)
Study Start Date : March 2006
Study Completion Date : May 2006

Resource links provided by the National Library of Medicine

Drug Information available for: Bee pollen

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 55 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Male and female subjects, aged 18-55 years.
  • Women will be considered for inclusion if they are: Not pregnant or nursing. Of non-child bearing potential (i.e. physiologically incapable of becoming pregnant, including any female who is pre-menarchial or post-menopausal with documented proof of hysterectomy or tubal ligation, or meet clinical criteria for menopause and have been amenorrhoeic for more than 1 year prior to the screening visit).Of childbearing potential and using an appropriate method of contraception (Oral contraceptive pill or double barrier).
  • FEV1 > 80% of predicted at screening.
  • Absence of any structural nasal abnormalities or nasal polyps on examination, a history of frequent nose bleeding or recent nasal surgery.
  • Absence of conditions or factors, which would make the subject unlikely to be able to stay in the Fraunhofer ECC for 4 hours.
  • Non smoker or smokers with a history of less than 10 pack years.
  • Able and willing to give written informed consent to take part in the study.
  • Available to complete all study measurements.
  • For subjects with allergic rhinitis:
  • History of allergic rhinitis to grass pollen and a positive skin prick test for Dactylis glomerata pollen at or within 12 months prior to the screening visit.
  • Subject must exhibit a moderate response upon 4.000 Dactylis glomerata pollen grains/m3 during 4 hours in the ECC on visit 2, which is defined as a Total Nasal Symptom Score of at least 6. (TNSS is the sum of obstruction, rhinorrhea, itch, and sneeze, each of which has been scored on a scale from 0 to 3).
  • Subjects with mild stable asthma that is controlled with occasional use of as-needed short-acting beta-agonists and associated with normal lung function may be included also.
  • Total Nasal Symptom Score (TNSS) of < 3 and a score < 2 for each symptom, i.e. obstruction, rhinorrhea, itch, and sneeze prior to entering the pollen chamber.
  • for healthy subjects:
  • No history of allergic rhinitis and a negative skin prick test including Dactylis glomerata at or within 12 months prior to the screening visit.
  • Total Nasal Symptom Score (TNSS) prior to and during pollen exposition of < 3 and a score < 2 for each symptom, i.e. obstruction, rhinorrhea, itch, and sneeze.
  • Absence of any respiratory disease

Exclusion Criteria:

  • History of a respiratory tract infection and/or exacerbation of asthma within 4 weeks before the informed consent and during the study.
  • Any history of life-threatening asthma, defined as an asthma episode that required intubation and/or was associated with hypercapnoea, respiratory arrest or hypoxic seizures.
  • Administration of oral, injectable or dermal corticosteroids within 8 weeks or intranasal and/or inhaled corticosteroids within 4 weeks of the screening visit.
  • Unable to abstain from other medications including non-steroidal anti-inflammatory drugs (NSAIDS), anti-depressant drugs, anti-histamines and anti-asthma, anti-rhinitis or hay fever medication (other than short acting inhaled beta-agonists) and paracetamol (up to 1g paracetamol per day is permitted for the treatment of minor ailments e.g. headache) for 1 week prior to screening and throughout the course of the study.
  • Past or present disease, which as judged by the investigator, may affect the outcome of this study. These diseases include, but are not limited to, cardiovascular disease, malignancy, hepatic disease, renal disease, haematological disease, neurological disease, endocrine disease or pulmonary disease (including but not confined to chronic bronchitis, emphysema, tuberculosis, bronchiectasis or cystic fibrosis).
  • Subject is undergoing allergen desensitisation therapy
  • There is a risk of non-compliance with study procedures

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): NCT00297843

Fraunhofer ITEM
Hannover, Germany, 30625
Sponsors and Collaborators
Fraunhofer-Institute of Toxicology and Experimental Medicine
Principal Investigator: Norbert Krug, MD Fraunhofer ITEM, Nikolai-Fuchs-Str. 1, 30625 Hannover, Germany

Publications automatically indexed to this study by Identifier (NCT Number): Identifier: NCT00297843     History of Changes
Other Study ID Numbers: 06/01 Nabio ITEM
First Posted: March 1, 2006    Key Record Dates
Last Update Posted: June 19, 2007
Last Verified: June 2007

Additional relevant MeSH terms:
Rhinitis, Allergic
Rhinitis, Allergic, Seasonal
Nose Diseases
Respiratory Tract Diseases
Respiratory Tract Infections
Otorhinolaryngologic Diseases
Respiratory Hypersensitivity
Hypersensitivity, Immediate
Immune System Diseases