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AllergyPhase 2/3NCT00633919

Efficacy of SLITone in House Dust Mite Allergic Patients

A Phase 2/3 study testing SLITone(TM) Dermatophagoides mix, Salbutamol inhaler and Budesonide/formoterol inhaler in people with Allergy, run by ALK-Abelló A/S at 1 site in Spain.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This trial has been designed to evaluate the efficacy of specific immunotherapy with SLITone Dermatophagoides mix compared with placebo in subjects with house dust mite allergic asthma, based on asthma medication use during a period of 2 months with a high environmental exposure to mites (autumn 2008). Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Allergy
What is being tested?
SLITone(TM) Dermatophagoides mix, Salbutamol inhaler and Budesonide/formoterol inhaler
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
124 participants
Where
1 siteSpain
Study dates
Jul 2006to Feb 2009
Phase
Phase 2/3
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • A clinical history of house dust mite induced persistent mild to moderate. asthma, with or without concurrent rhinoconjunctivitis, of at least 1 year of evolution.
  • Demonstration of a positive specific serum IgE test to Dermatophagoides during the year prior to the screening visit (CAP Class 2 or higher or equivalent).
  • Positive Skin Prick Test response (wheal diameter ≥ 3 mm) to Dermatophagoides mix.
  • If pre-menopausal female of childbearing potential, the subject must test negative on standard urine pregnancy test.
  • Willingness to comply with this protocol.

Who cannot join

  • FEV1 < 70% of predicted value with appropriate medication.
  • Asthma controlled at randomization without need of inhaled corticosteroids or with a dose higher than 1000 µg/day of beclometasone or equivalent.
  • A clinical history of symptomatic perennial allergic asthma caused by allergens to which the subjects is regularly exposed (Alternaria, cat), other than house dust mites.
  • Chronic sinusitis.
  • Aspirin or sulfite intolerance.
  • Chronic obstructive pulmonary disease.
Show all 17Show fewer
  • Current severe atopic dermatitis.
  • Severe asthma.
  • Use of an investigational drug within 30 days prior to screening.
  • Previous immunotherapy with house dust mite allergens for at least 2 years within the previous 10 years.
  • At randomisation, current symptoms of, or treatment for, upper respiratory tract infection, acute sinusitis, acute otitis media or other relevant infectious process (se-rous otitis media is not an exclusion criterion).
  • Physical examination with clinically relevant findings.
  • Any of the following underlying conditions known or suspected to be present: Cystic fibrosis, malignancy, insulin-dependent diabetes, malabsorption or malnutrition, renal or hepatic insufficiency, chronic infection, drug dependency or alco-holism, ischaemic heart disease or angina requiring current daily medication or with any evidence of disease making implementation of the protocol or interpretation of the protocol results difficult or jeopardising the safety of the subject (e.g. clinically significant cardiovascular, serious immunopathologic, immunodeficiency whether acquired or not, hepatic, neurologic, psychiatric, endocrine, or other ma-jor systemic disease).
  • Immunosuppressive treatment.
  • A mental condition rendering the subject unable to understand the nature, scope and possible consequences of the trial, and/or evidence of an uncooperative attitude.
  • Unlikely to be able to complete the trial.
  • Unwillingness to comply with trial protocol regimen for asthma and/or rhinoconjunctivitis medication.

Trial locations and contacts

1 site in 1 country.

Spain1 site
  • Fernando Rodríguez

    Santander, Cantabria

Other trials in Spain

About this study

Official title: A Randomised, Double-blind, Placebo-controlled Trial Assessing the Efficacy of SLITone in House Dust Mite Allergic Patients

This trial has been designed to evaluate the efficacy of specific immunotherapy with SLITone Dermatophagoides mix compared with placebo in subjects with house dust mite allergic asthma, based on asthma medication use during a period of 2 months with a high environmental exposure to mites (autumn 2008).

Read the detailed description

This trial was conducted as a multi-centre, randomised, double-blind, parallel-group, placebo-controlled phase III trial, assessing the efficacy of SLITone Dermatophagoides mix in adults (18-65 years). 5 centres in Spain participated.

Subjects with house dust mite allergic asthma were randomised to receive either SLITone Dermatophagoides mix (active) or placebo treatment (1:1) for approximately 1 year. The trial duration was extended to 2 years. Administration was done sublingually (under the tongue) once daily preferably in the morning. A monodose container comprised the daily dose of 200 STU.

Subjects were kept in asthma control during the entire trial (2 years). Except for during 2 evaluation periods of 2 months in autumn 2007 and autumn 2008, subjects used the medications prescribed by their physician. During the 2 evaluation periods of 2 months in autumn 2007 and autumn 2008, subjects used provided and standardised rhinoconjunctivitis and asthma medications. The asthma medication use was to reflect the subject's asthma status. This was done by treatment with a low maintenance dose of control medication supplemented with rescue medication as needed.

Rhinoconjunctivitis medication during the 2 evaluation periods in autumn 2007 and autumn 2008; to standardise the medication used to relieve rhinoconjunctivitis symptoms, subjects were provided with the following free medications as needed:

  • Desloratadine tablet (5 mg per tablet; anti-histamine; Aerus®)
  • Budesonide nasal spray (64 µg per puff; inhaled corticosteroid)
  • Prednisone tablet (5 mg per tablet; oral corticosteroid)

Subjects were instructed to use this medication instead of their usual medication during the 2 evaluation periods in autumn 2007 and autumn 2008, and to record the used medication and symptoms in the daily diary.

Asthma medication during the evaluation period in autumn 2007; prior to the 2 months evaluation period in autumn 2007, the asthma control medication use was interrupted to obtain a medication-free period. Subjects were provided with the following free medications to standardise the treatment used to relieve asthma symptoms:

  • Salbutamol inhaler (200 µg per puff; a short acting β2-agonist; Ventilastin®).
  • Budesonide/formoterol inhaler (80/4.5 µg per inhalation; a combination of inhaled corticosteroids and long acting β2-agonist; Symbicort®).
  • Prednisone tablet (5 mg per tablet; oral corticosteroid).

Subjects were instructed to use this medication instead of their usual medication during the evaluation period in autumn 2007 as follows:

They were to use salbutamol inhaler as asthma rescue medication until they either:

  • needed more than 4 inhalations of salbutamol per day for 2 consecutive days
  • suffered from nocturnal asthma forcing them to wake up
  • suffered from exercise-induced dyspnoea doing ordinary tasks In these cases, subjects were to contact the investigator to determine the amount of budesonide/formoterol to use as daily asthma control medication. The budesonide/formoterol inhaler was thereafter to be used as rescue medication as needed instead of salbutamol. Prednisone could be used as a last option.

Asthma medication during the evaluation period in autumn 2008: At the 2 months evaluation period in autumn 2008, subjects were maintained at a low dose of budesonide/formoterol (daily asthma control medication) and they used the budesonide/formoterol inhaler as rescue medication as needed. Prednisone could be used as a last option.

Asthma medication used during the evaluation periods in autumn 2007 and autumn 2008 were recorded in a daily diary.

One primary efficacy endpoint and 16 secondary efficacy endpoints were assessed; the result of the primary efficacy endpoint, 3 secondary endpoints and adverse event reportings are posted here. None of the other secondary endpoints demonstrated a difference between treatment groups.

Conditions
Allergy
Being tested
SLITone(TM) Dermatophagoides mix, Placebo, Salbutamol inhaler, Budesonide/formoterol inhaler, Prednisone tablet
Keywords
House dust mites, Sublingual immunotherapy, Allergy, Allergic asthma
Medical subject headings
Hypersensitivity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SLITone(TM) Dermatophagoides mixBiological

    Sublingual immunotherapy with SLITone Dermatophagoides mix (200 STU) once daily for 2 years

  • PlaceboBiological

    Sublingual immunotherapy once daily for 2 years

  • Salbutamol inhalerDrug

    Also called Ventilastin

    200 µg per puff; a short acting beta2-agonist (please refer to the 'detailed description' for details on the use)

  • Budesonide/formoterol inhalerDrug

    Also called Symbicort

    80/4.5 µg per inhalation; a combination of inhaled corticosteroids and long acting beta2-agonist (please refer to the 'detailed description' for details on the use)

  • Prednisone tabletDrug

    5 mg per tablet; oral corticosteroids (please refer to the 'detailed description' for details on the use)

  • Desloratadine tabletDrug

    Also called Aerus

    5 mg per tablet: anti-histamine (please refer to the 'detailed description' for details on the use)

  • Budesonide nasal sprayDrug

    64 µg per puff; inhaled corticosteroid (please refer to the 'detailed description' for details on the use)

Study groups in NCT00633919
Study groupRoleWhat they receive
ActiveActive comparatorSLITone Dermatophagoides Mix
Receives: Biological: SLITone(TM) Dermatophagoides mix; Drug: Salbutamol inhaler; Drug: Budesonide/formoterol inhaler; Drug: Prednisone tablet; Drug: Desloratadine tablet; Drug: Budesonide nasal spray
PlaceboPlacebo comparatorSLITone Placebo
Receives: Biological: Placebo; Drug: Salbutamol inhaler; Drug: Budesonide/formoterol inhaler; Drug: Prednisone tablet; Drug: Desloratadine tablet; Drug: Budesonide nasal spray

What is being measured

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

  1. Average Daily Asthma Medication Score During a 2-months Evaluation Period in Autumn 2008

    Scoring per inhalation/tablet: 1-2 inhalations twice daily of salbutamol (200 ug per inhalation), 2 scores; 1-2 inhalation twice daily of budesonide/formoterol 80 (4.5 ug per inhalation), 4 scores; 1 inhalation twice daily of budesonide/formoterol 160 (4.5 ug per inhalation), 8 scores; up to 10 tablets once daily of prednisone (5 mg), 1.6 scores. The total maximum daily scores were 40.

    The daily score for each medication step was calculated by multiplying the score per inhalation/tablet with the number of inhalations/tablets used (entered as units in the daily diary by the subject).

    Measured: 8 weeks

Secondary outcomes (4)
  1. Average Daily Asthma Medication Score During a 2-months Evaluation Period in Autumn 2007

    Scoring per inhalation/tablet: 1-2 inhalations twice daily of salbutamol (200 ug per inhalation), 2 scores; 1-2 inhalation twice daily of budesonide/formoterol 80 (4.5 ug per inhalation), 4 scores; 1 inhalation twice daily of budesonide/formoterol 160 (4.5 ug per inhalation), 8 scores; up to 10 tablets once daily of prednisone (5 mg), 1.6 scores. The total maximum daily scores were 40.

    The daily score for each medication step was calculated by multiplying the score per inhalation/tablet with the number of inhalations/tablets used (entered as units in the daily diary by the subject).

    Measured: 8 weeks

  2. Global Evaluation of Efficacy by Subject at the End of The Evaluation Period in 2008

    The treatment efficacy was rated by subjects at the end of the evaluation period in autumn 2008. Subjects rated their asthma symptoms in comparison to previous autumn using the categories: "much worse", "worse", "the same", "better", or "much better".

    The categories "much better" or "better" were grouped as "improved". The categories "the same", "worse" or "much worse" were grouped as "not improved".

    Measured: 8 weeks

  3. Global Evaluation of Efficacy by Investigator at the End of the Evaluation Period in Autumn 2008

    The treatment efficacy was rated by investigators at the end of the evaluation period in autumn 2008. Investigators rated the asthma symptoms in comparison to when subjects entered the trial, using the categories: "much worse", "worse", "the same", "better", or "much better".

    The categories "much better" or "better" were grouped as "improved". The categories "the same", "worse" or "much worse" were grouped as "not improved".

    Measured: 8 weeks

  4. Global Evaluation of Efficacy by Subject and Investigator at the End of the Evaluation Period in Autumn 2007

    The treatment efficacy was rated by both subject and investigator at the end of the evaluation period in autumn 2007. Subjects rated their asthma symptoms in comparison to previous autumns and investigators rated the asthma symptoms in comparison to when subjects entered the trial, using the categories: "much worse", "worse", "the same", "better", or "much better".

    The categories "much better" or "better" were grouped as "improved". The categories "the same", "worse" or "much worse" were grouped as "not improved".

    Measured: 8 weeks

Timeline

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

  1. First posted12 Mar 2008 (estimated)
  2. Study startJul 2006
  3. Primary completionDec 2008
  4. Study completionFeb 2009

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
124 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00633919
Sponsor's protocol ID
E02/04/SLIT1-M
Other IDs
EudraCT - 2005-004731-21
Status last verified
Jun 2011
First submitted
4 Mar 2008
Last updated
8 Jun 2011
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing SLITone(TM) Dermatophagoides mix, Salbutamol inhaler and Budesonide/formoterol inhaler in people with Allergy, run by ALK-Abelló A/S at 1 site in Spain.

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 5 inclusion and 17 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: finished, as of the sponsor's last update on 8 Jun 2011. 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 Spain. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 21 Feb 2011). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Average Daily Asthma Medication Score During a 2-months Evaluation Period in Autumn 2008 (time frame: 8 weeks). 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 8 Jun 2011.

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