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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03375775
Other study ID # DNR 2015/3:8 EPN Stockholm
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date May 1, 2017
Est. completion date January 31, 2022

Study information

Verified date April 2022
Source Karolinska Institutet
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The objective is to prospectively explore associations between immunological parameters in blood and clinical effect of subcutaneous immunotherapy (SCIT) in children with severe allergy towards pollen. Half of the children will receive SCIT while the other half will start SCIT after the study is finished. Clinical evaluations of symptoms and an immunological survey will be performed before start of SCIT and after one year of treatment. Some of the immunological parameters will also be checked after 6 months of treatment


Description:

Before start of SCIT, with Alutard pollenextract/s from " Allergologisk Laboratorium Köbenhavn" (ALK), and after one year of treatment, immunoglobulin E (IgE)-antibody levels towards the crude allergen and important allergen components in birch and grasspollen (timothy) will be measured in blood. While IgE- antibodies are considered to be an indicator of allergy IgG- and IgG4-antibodies are considered to be "blocking" antibodies in IgE-mediated allergy. Therefore the investigators will measure the IgG- and IgG4-antibody levels to crude allergens and applicable allergen components before start, when maintenance dose is reached (after 6 months) and after one year of treatment. In order to evaluate quality of life, a validated form (DISABKIDS) will be used. Symptom score will be rated by a validated form (LILA). The need for medication to treat allergic rhinitis and asthma will be assessed using questionnaires. A conjunctival provocation with the applicable allergen(s) will be performed before start of SCIT and after one year of treatment.


Recruitment information / eligibility

Status Completed
Enrollment 40
Est. completion date January 31, 2022
Est. primary completion date January 31, 2022
Accepts healthy volunteers No
Gender All
Age group 6 Years to 18 Years
Eligibility Inclusion Criteria: - Seasonal Rhinoconjunctivitis caused by grass and/or birch pollen allergy - Insufficient clinical effect of symptomatic treatment (antihistamine, nasal corticosteroids) - IgE antibodies to grass and/or birch pollen antigens Exclusion Criteria: - severe comorbidity, severe asthma, pregnancy

Study Design


Intervention

Drug:
Subcutaneous immunotherapy with ALK Alutard birch or ALK Alutard timothy
According to standardized clinical protocol
Other:
No immunotherapy, symptomatic treatment
These patients will only receive symptomatic treatment for their allergic rhinoconjunctivitis.

Locations

Country Name City State
Sweden Karolinska University Hospital Stockholm

Sponsors (1)

Lead Sponsor Collaborator
Karolinska Institutet

Country where clinical trial is conducted

Sweden, 

References & Publications (6)

Borres MP, Ebisawa M, Eigenmann PA. Use of allergen components begins a new era in pediatric allergology. Pediatr Allergy Immunol. 2011 Aug;22(5):454-61. doi: 10.1111/j.1399-3038.2011.01197.x. Review. — View Citation

Burks AW, Calderon MA, Casale T, Cox L, Demoly P, Jutel M, Nelson H, Akdis CA. Update on allergy immunotherapy: American Academy of Allergy, Asthma & Immunology/European Academy of Allergy and Clinical Immunology/PRACTALL consensus report. J Allergy Clin — View Citation

Fauquert JL, Jedrzejczak-Czechowicz M, Rondon C, Calder V, Silva D, Kvenshagen BK, Callebaut I, Allegri P, Santos N, Doan S, Perez Formigo D, Chiambaretta F, Delgado L, Leonardi A; Interest Group on Ocular Allergy (IGOA) from the European Academy of Aller — View Citation

Kiotseridis H, Cilio CM, Bjermer L, Aurivillius M, Jacobsson H, Tunsäter A. Swedish translation and validation of the Pediatric Allergic Disease Quality of Life Questionnaire (PADQLQ). Acta Paediatr. 2011 Feb;100(2):242-7. doi: 10.1111/j.1651-2227.2010.02 — View Citation

Schmid JM, Würtzen PA, Dahl R, Hoffmann HJ. Pretreatment IgE sensitization patterns determine the molecular profile of the IgG4 response during updosing of subcutaneous immunotherapy with timothy grass pollen extract. J Allergy Clin Immunol. 2016 Feb;137( — View Citation

Schmidt S, Debensason D, Mühlan H, Petersen C, Power M, Simeoni MC, Bullinger M; European DISABKIDS Group. The DISABKIDS generic quality of life instrument showed cross-cultural validity. J Clin Epidemiol. 2006 Jun;59(6):587-98. Epub 2006 May 2. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Response to a Conjunctival Allergen Challenge Change in the dose of allergen needed to elicit a clinical response following ocular administration of the allergen Before treatment and after 12,24 and 36 months
Secondary PADQLQ (pediatric allergic disease quality of life questionnaire) in Swedish LILA Includes 26 questions regarding allergic symptoms scored from 0 (no symptoms) to 6 (very severe symptoms) during pollen season. Difference in change of total score between intervention and control group will be assessed Baseline and after 12,24 and 36 months of immunotherapy
Secondary Questionnaire regarding use of pharmacologic treatment for allergy and asthma during pollen season Frequency of use of 8 different drugs will be scored from 0(never) to 5 (daily). Difference in change of total score between intervention and control group will be assessed Baseline and after 12,24 and 36 months of immunotherapy
Secondary Questionnaire regarding quality of life DISABKIDS, a european quality of life questionnaire used in children with chronic diseases consisting of 37 quality of life questions with answers rated from ever (0=best) to never (5= worst). Difference in change of total score between intervention and control group will be assessed Baseline and after 12,24 and 36 months of immunotherapy
Secondary Change in level of IgE-antibodies Difference in change between intervention and control group will be assessed Baseline and after 12,24 and 36 months of immunotherapy
Secondary Change in level of IgG-antibodies Difference in change between intervention and control group will be assessed Baseline and after 12,24 and 36 months of immunotherapy
Secondary Change in level of IgG4-antibodies Difference in change between intervention and control group will be assessed Baseline and after 12,24 and 36 months of immunotherapy
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