Evaluating Symptom Control in in Allergic Rhinitis at Three Years After Starting Immunotherapy

October 24, 2013 updated by: Universitaire Ziekenhuizen KU Leuven
Allergic rhinitis (AR) is defined as inflammation of the nasal mucosa after exposition to an allergen in sensitized patients. AR causes not only nasal symptoms such as sneezing, itchy nose, rhinorrhea and nasal obstruction, but also has a significant impact on quality of life. Symptom control and overall satisfaction in patients undergoing subcutaneous immunotherapy (SCIT) or sublingual immunotherapy (SLIT) on the long term has not yet been investigated so far.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
434

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Belgium
    • Vlaams-Brabant
      • Leuven, Vlaams-Brabant, Belgium, 3000
        • ORL
    • Vlaams-brabant
      • Leuven, Vlaams-brabant, Belgium, 3000
        • UZ Leuven

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

19 years to 59 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

patients who started immunotherapy

Description

Inclusion Criteria:

  1. Patients with at least 2 AR symptoms and a positive skin prick test for the 20 most prevalent inhalant allergens (house dust mites, grass pollen, tree pollen, animal dander, Alternaria, Penicillium and Cladosporium) in Belgium.
  2. Moderate/severe and/or persistent AR according to ARIA guidelines
  3. Age > 18 and < 60 years.
  4. Written informed consent
  5. Dutch, French or English speaking patients

Exclusion Criteria:

Exclusion criteria

  1. Age < 18 and > 60 years
  2. Patients with mild AR
  3. Patients not being able to give an informed consent
  4. Patients being enrolled in other clinical trials
  5. No knowledge of Dutch, French or English

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
control group
a control group of AR patients who visited the ear nose and throat (ENT) department of the University Hospitals Leuven in the same time period
patients having SCIT
patients who started immunotherapy at the Department of Allergology of the University Hospitals Leuven between November 2007 and February 2010.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Current Medication Use Three Years After Diagnosis of AR
Time Frame: 3 years after starting SCIT
Percentage patients in both groups that still use medication for their allergic rhinitis symptoms, 3 years after starting their therapy (non IT-group vs IT-group)
3 years after starting SCIT
Degree of Symptom Control 3 Years After IT or 3 Years After Medical Treatment With VAS of Total Nasal Symptom < 5/10 Defined as a Controlled Situation.
Time Frame: 3 years after diagnosis
Visual analogue scale (VAS) scores for TNS experienced during the last 4 weeks. Visual analog scales (VAS) have been used to rate the presence of symptoms or impairment of the daily activities. Patients had to answer each question by indicating a position with a vertical line between two endpoints, 0 cm for not bothersome versus 10 cm for extremely bothersome. In this way each question is scored between 0 and 10 points.
3 years after diagnosis

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percentage of Patients Having Controlled Allergic Rhinosinusitis (AR) Symptoms 3 Years After Starting Treatment
Time Frame: 3 years after starting SCIT
Based on the proposed cut-off value of VAS < 5/10 for total nasal symptoms (TNS), rhinitis was considered as being controlled in 69 IT patients (84%) versus 223 (63%) non-IT patients
3 years after starting SCIT
Percentage of Patients That Met ARIA Criteria for Mild AR Symtoms at a Mean Interval of 3 Years After Diagnosis
Time Frame: 3 years after diagnosis

ARIA classification of AR is made by duration and severity of AR symptoms. Here are calculated the number of patients having mild acute rhinitis.

Clinical practice guidelines such as the Allergic Rhinitis and its Impact on Asthma (ARIA) document focus on the quality of life as a principal consideration in assessment and treatment of AR
3 years after diagnosis

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Universitaire Ziekenhuizen KU Leuven

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 1, 2012

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2013

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2013

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 23, 2013

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 23, 2013

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 28, 2013

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
December 17, 2013

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 24, 2013

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2013

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 102012

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