Regulatory T-cells After Subcutaneous Immunotherapy

NCT ID: NCT01830673

Last Updated: 2014-07-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

68 participants

Study Classification

OBSERVATIONAL

Study Start Date

2011-10-31

Study Completion Date

2012-10-31

Brief Summary

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The primary endpoint was the induction of T-regulatory cells under s specific subcutaneous immunotherapy (SCIT). Patients suffering from grass pollen allergy (relevant clinical symptomes during the pollen season, Skin Prick test diamter \>4mm or RAST class II or higher) were included. The patients were allocated to three study groups:

Group 1: during and directly after SCIT (after completion the 2nd or 3rd year of treatment) Group 2: completed SCIT more then three years ago Group 3: Patients with clinically relevant grass pollen allergy without SCIT.

The investigators analyzed the lung function parameters, exhaled NO (eNO) and asked the patients to record symptoms during the adjacent pollen season. A blood sample was drawn to analyze the amount of TH1 and TH2 and regulatory T-cells, inflammatory markers(IL-2, IL-5, IL-10, IL-12/23, TNF-alpha, IFN-gamma) and blocking antibodies (IgG, IgG4).

Detailed Description

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Conditions

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Grass Pollen Allergy Specific Immunotherapy

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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under SIT

patients completed second or third year of SIT. We include the patients directly after last SIT vaccination.

No interventions assigned to this group

after SIT

Patients completed three years of SIT for at least three years. We included them as a follow up.

No interventions assigned to this group

no SIT

These patients were determined randomly. They have a clinically relevant grass pollen allergy. They never had a SIT.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* informed consent,
* clinically relevant grass pollen allergy,
* age \> 6 and \< 28

Exclusion Criteria

* severe unstable asthma,
* regular ingestion of antihistamine,
* systemic steroid therapy,
* lung funtcion VC \< 70%,
* FEV1 \< 65%
Minimum Eligible Age

7 Years

Maximum Eligible Age

28 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Johann Wolfgang Goethe University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Dr. med. Martin Rosewich

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Stefan Zielen, Prof.

Role: STUDY_DIRECTOR

Johann Wolfgang Goethe University Hospital

Locations

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Johann Wolfgang Goethe-university

Frankfurt/M, Hesse, Germany

Site Status

Countries

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Germany

References

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Zielen S, Kardos P, Madonini E. Steroid-sparing effects with allergen-specific immunotherapy in children with asthma: a randomized controlled trial. J Allergy Clin Immunol. 2010 Nov;126(5):942-9. doi: 10.1016/j.jaci.2010.06.002. Epub 2010 Jul 10.

Reference Type BACKGROUND
PMID: 20624650 (View on PubMed)

Martin M, Michalek SM, Katz J. Role of innate immune factors in the adjuvant activity of monophosphoryl lipid A. Infect Immun. 2003 May;71(5):2498-507. doi: 10.1128/IAI.71.5.2498-2507.2003.

Reference Type BACKGROUND
PMID: 12704121 (View on PubMed)

Drachenberg KJ, Heinzkill M, Urban E, Woroniecki SR. Efficacy and tolerability of short-term specific immunotherapy with pollen allergoids adjuvanted by monophosphoryl lipid A (MPL) for children and adolescents. Allergol Immunopathol (Madr). 2003 Sep-Oct;31(5):270-7. doi: 10.1016/s0301-0546(03)79195-2.

Reference Type BACKGROUND
PMID: 14572416 (View on PubMed)

Rosewich M, Schulze J, Eickmeier O, Telles T, Rose MA, Schubert R, Zielen S. Tolerance induction after specific immunotherapy with pollen allergoids adjuvanted by monophosphoryl lipid A in children. Clin Exp Immunol. 2010 Jun;160(3):403-10. doi: 10.1111/j.1365-2249.2010.04106.x. Epub 2010 Mar 16.

Reference Type BACKGROUND
PMID: 20345983 (View on PubMed)

Rosewich M, Schulze J, Fischer von Weikersthal-Drachenberg KJ, Zielen S. Ultra-short course immunotherapy in children and adolescents during a 3-yrs post-marketing surveillance study. Pediatr Allergy Immunol. 2010 Feb;21(1 Pt 2):e185-9. doi: 10.1111/j.1399-3038.2009.00953.x. Epub 2009 Dec 8.

Reference Type BACKGROUND
PMID: 20003062 (View on PubMed)

Other Identifiers

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FRA-2012-SCIT

Identifier Type: -

Identifier Source: org_study_id

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