Comparative Real World Effectiveness of SQ Sublingual Immunotherapy (SLIT)-Tablets vs. Controls in Allergic Rhinitis and Asthma

Asthma Clinical Trial

Official title:

Comparative Real World Effectiveness of SQ Sublingual Immunotherapy (SLIT)-Tablets vs. Controls in Allergic Rhinitis and Asthma - Outcomes From a Multinational Register Study

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT05476484
• Other study ID #: NI-X-05
• Status: Active, not recruiting
• Start date: April 1, 2022
• Est. completion date: June 2024

Study information

• Verified date: July 2023
• Source: ALK-Abelló A/S
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

To assess the impact of SQ SLIT-tablets (SQ Grass SLIT-tablet and SQ HDM SLIT-tablet) in Danish and Swedish allergic rhinitis (AR) patients, with or without asthma, between 2007-2020.

Description:

Allergic rhinitis (AR) is an inflammatory disorder, characterised by pruritus, sneezing, rhinorrhoea, and nasal congestion. It is one of the most common disorders worldwide, with an estimated global prevalence of 10-30%. AR is a chronic and progressive disease, as the underlying respiratory allergy can progress into allergic asthma. The prevalence of asthma in patients with AR is high and estimated between 10-40%. The presence of AR commonly exacerbates asthma, increasing the risk of asthma exacerbations, emergency visits and hospitalisations for asthma. Recently, the high-quality retrospective cohort REACT study (ClinicalTrial.gov: NCT04125888) found that allergy immunotherapy (AIT) was associated with long-term reduction in AR medication use as well as significant reductions in both controller and reliever asthma medication and concurrent lower risk of asthma exacerbation and pneumonia in subjects with pre-existing asthma. The SQ sublingual immunotherapy (SLIT)-tablets have robust evidence from randomised controlled trials (RCTs), but real-world evidence (RWE) is needed to complement the findings from RCTs by looking at e.g. longer time horizons and broader patient populations. As the REACT study was not designed to specifically look at evidence-based AIT treatments like the SQ SLIT-tablets, the real-world effectiveness of SQ SLIT tablets remain to be further elucidated.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 49844
• Est. completion date: June 2024
• Est. primary completion date: June 2024
• Accepts healthy volunteers: No
• Gender: All
• Age group: 5 Years and older

Eligibility

Inclusion Criteria:

AR-patients identified by dispensations of prescribed AR medications and/or ICD10-codes of AR in specialty care

For the SQ SLIT-tablet cohort:

• at least 2 dispensings within 365 days of SQ SLIT-tablets (ATC: V01AA02 and V01AA03)

For the control cohort:

• unexposed subjects will be identified from the study population of AR-patients that may be eligible to receive SQ SLIT-tablets, but have not dispensed a prescription of SQ SLIT-tablets during the index year of the case or prior to that year

Exclusion Criteria:

• allergy immunotherapy treatment with grass or HDM allergens prior to the index event

Related Conditions & MeSH terms

• Allergic Rhinitis
• Allergy
• Asthma
• Rhinitis
• Rhinitis, Allergic

Intervention

Drug:
• SQ SLIT-tablet
SQ grass SLIT-tablet and/or SQ house dust mite SLIT-tablet

Locations

Country	Name	City	State
Denmark	ALK	Hørsholm	Copenhagen

Sponsors (2)

Lead Sponsor	Collaborator
ALK-Abelló A/S	Quantify Research

Country where clinical trial is conducted

Denmark, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Health care resource utilisation assessed by ambulatory care visits		From pre-index to follow-up year(s), assessed from 2005 and up to 2021
Other	Health care resource utilisation assessed by hospitalisations		From pre-index to follow-up year(s), assessed from 2005 and up to 2021
Other	Health care resource utilisation assessed by cost		From pre-index to follow-up year(s), assessed from 2005 and up to 2021
Primary	Symptom-relieving medication use for allergic rhinitis	Overall number of prescriptions and by individual drug classes	From pre-index to follow-up year(s), assessed from 2005 and up to 2021
Secondary	Medication use for asthma	Overall number of prescriptions and by individual drug classes	From pre-index to follow-up year(s), assessed from 2005 and up to 2021
Secondary	Asthma disease severity assessed by reliever and controller medication prescriptions and hospitalisations due to asthma		From pre-index to follow-up year(s), assessed from 2005 and up to 2021
Secondary	Lower airway infections assessed by prescriptions of antibiotics and diagnosis codes for pneumonia		From pre-index to follow-up year(s), assessed from 2005 and up to 2021