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Allergy DesensitizationNCT01914029

Immunological Mechanisms of Allergy Immunotherapy

An observational study of Allergy Desensitization, run by Rambam Health Care Campus at 1 site in Israel.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The purpose of the study is to add to the knowledge of mechanisms of immune health. Parameters of the immune system will be followed over time in volunteers allergic to dust mites and bee sting after receiving immunization therapy. This information will be compared to healthy volunteers without allergy. Read more about this study

Who is it for?
Ages 18 to 45 years
Conditions the study is for
Allergy Desensitization
How many people
70 participants
Where
1 siteIsrael
Study dates
Aug 2013to Jul 2016
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 45 years
  • All sexes
  • No healthy volunteers
  • Adult

Study population: 10 volunteers will be enrolled in each group. The study will include seven treatment groups and one control, total number of participants is 80

Who may be able to join

  • Diagnosis of allergic rhinitis and evidence of specific immunoglobulin E antibodies to house dust mite.
  • Or A history of a bee sting event that resulted in a systemic allergic reaction with evidence of bee venom-specific immunoglobulin E by skin testing 18-45 years, inclusive at time of initial enrollment General good health and ambulatory at time of enrollment Willing and able to sign Informed Consent Available for follow-up for the planned duration of the study Acceptable medical history by screening evaluation and brief clinical assessment
  • -

Who cannot join

  • Allergy to multiple allergens Active systemic or serious concurrent illness, including febrile illness on the day of blood withdrawal History of immunodeficiency Known or suspected impairment of immunologic function, including, but not limited to clinically significant liver disease, diabetes mellitus treated with insulin, moderate to severe renal disease, blood pressure >150/95 at screening, or any other chronic disorder which, in the opinion of the investigator, might jeopardize volunteer safety or compliance with the protocol.
  • Chronic Hepatitis B or C. Recent or current use of immunosuppressive medication, including glucocorticoids (corticosteroid nasal sprays are permissible).
  • Malignancy, other than squamous cell or basal cell skin cancer (includes solid tumors such as breast cancer or prostate cancer with recurrence in the past year, and any hematologic cancer such as leukemia).
  • Autoimmune disease (including rheumatoid arthritis treated with immunosuppressive medication such as Plaquenil, methotrexate, prednisone, Enbrel) which, in the opinion of the investigator, might jeopardize volunteer safety or compliance with the protocol.
  • History of blood dyscrasias, renal disease, or hemoglobinopathies requiring regular medical follow up or hospitalization during the preceding year Use of any anti-coagulation medication such as Coumadin or Lovenox, or anti-platelet agents such as aspirin, Plavix, Aggrenox. May be acceptable after review by investigator.
  • Receipt of blood or blood products within the past 6 months Medical or psychiatric condition or occupational responsibilities that preclude subject compliance with the protocol History of Guillain-Barré Syndrome
  • -

Trial locations and contacts

1 site in 1 country.

Israel1 site, 1 recruiting
  • Immunology Clinic Rambam Medical Center

    Haifa, 31096

    Eduardo Shahar, Dr., ed_shahar@rambam.health.gov.il

    Recruiting

Other trials in Israel

About this study

The purpose of the study is to add to the knowledge of mechanisms of immune health. Parameters of the immune system will be followed over time in volunteers allergic to dust mites and bee sting after receiving immunization therapy. This information will be compared to healthy volunteers without allergy. We aim to bring new understanding of immune processes by this comparison.

Read the detailed description

The process of immunization as a treatment for allergic disease brings about changes that are not all well understood and the understanding about them is developing constantly. In our study we plan to check a large number of immunological parameters to broaden the scope of knowledge of evaluating individuals for immune health across multiple sub fields of medicine and for advancing a basic understanding of immune cell signaling.

The study will involve 70 participants between ages 18-45 of both sexes. Persons enrolled to the study will have been diagnosed with allergic rhinitis caused by dust mite or persons who developed a systemic reaction following bee sting who are candidates to be treated by immunization.

After verification of diagnosis of allergic condition and decision to start immunizations, blood samples will be drawn from participants before immunization weekly for 24 weeks. Blood samples will be analyzed in order to identify immune cell subset differences that change in response to allergy immunotherapy. Comparisons will be made of baseline and stimulation-induced status of protein phosphorylation individuals over the time-series course in which they receive allergy immunotherapy to pinpoint molecular mechanisms underlying desensitization. Evaluations will be made of cellular mechanisms of allergy immunotherapy by comparing over time and between groups, through serum cytokine profiling and blood gene expression of individuals undergoing allergy immunotherapy shots.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Immunological changes within allergic desensitization treatment

    1. Phenotype changes in time of immune cell subsets count, and relative abundance.
    2. Compare the baseline and stimulation-induced status of protein phosphorylation individuals over the time-series course in which they receive allergy immunotherapy and pinpoint molecular mechanisms underlying desensitization.
    3. Evaluate cellular mechanisms of allergy immunotherapy by comparing over time and between groups, through serum cytokine profiling and blood gene expression of individuals undergoing allergy immunotherapy shots.

    Measured: 1. Immunological changes from baseline to 4 months

Secondary outcomes (1)
  1. Allergen Immunotherapy

    Compare the baseline and stimulation-induced status of protein phosphorylation individuals over the time-series course in which they receive allergy immunotherapy and pinpoint molecular mechanisms underlying desensitization.

    Measured: participants will be followed weekly for 4 months and once a month afterwards for a year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Aug 2013 (estimated)
  2. Study startAug 2013
  3. Primary completionJul 2014 (estimated)
  4. Study completionJul 2016 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
70 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01914029
Sponsor's protocol ID
0032-13-RMB CTIL
Status last verified
Aug 2013
First submitted
6 Jun 2013
Last updated
27 Aug 2013
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Allergy Desensitization, run by Rambam Health Care Campus at 1 site in Israel.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 27 Aug 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Israel. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Eduardo Shahar, Dr. (972-4-8543580, ed_shahar@rambam.health.gov.il), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Immunological changes within allergic desensitization treatment (time frame: 1. Immunological changes from baseline to 4 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Aug 2013.

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