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Allergic RhinoconjunctivitisPhase 3QUESTNCT04176185

A Research Study in Chinese People With Allergy to House Dust Mites, Using an Environmental Exposure Chamber

A Phase 3 study testing Sublingual allergy immunological tablet in people with Allergic Rhinoconjunctivitis, run by ALK-Abelló A/S at 2 sites in 2 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This trial evaluates the efficacy and safety of HDM SLIT-tablet in treatment of HDM AR. The efficacy is evaluated using an environmental exposure chamber (EEC). Subjects will be randomised to receive treatment with HDM SLIT-tablet and placebo 1:1. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Allergic Rhinoconjunctivitis
What is being tested?
Sublingual allergy immunological tablet
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
80 participants
Where
2 sitesin 2 countries
Study dates
4 Nov 2019to 19 Jan 2022
Phase
Phase 3
Are there results?
None posted in the registry

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female Chinese subjects aged ≥18 years
  • A clinical history of HDM AR/C with or without asthma
  • Positive SPT and IgE to Der p or Der f at screening
  • A TNSS of at least 6 of 12 within the first 2 hours of the screening EEC session prior to randomisation

Who cannot join

  • Sensitised and regularly exposed perennial or seasonal allergens
  • Asthma requiring treatment with high-dose ICS
  • Reduced lung function
  • Has a nasal condition that could confound the efficacy or safety assessment
  • A relevant history of systemic allergic reaction

Trial locations and contacts

2 sites in 2 countries.

2 sites in 2 countries

Austria1 site
  • Vienna Challenge Chamber

    Vienna, 1150

Other trials in Austria

China1 site
  • Tongren Hospital

    Beijing

Other trials in China

About this study

Official title: A Phase III Trial Evaluating the Efficacy and Safety of the House Dust Mite (HDM) Sublingual Immunotherapy (SLIT)-Tablet in Adult Chinese Subjects With HDM Allergic Rhinitis/Rhinoconjunctivitis Using an Environmental Exposure Chamber

This trial evaluates the efficacy and safety of HDM SLIT-tablet in treatment of HDM AR. The efficacy is evaluated using an environmental exposure chamber (EEC). Subjects will be randomised to receive treatment with HDM SLIT-tablet and placebo 1:1.

Read the detailed description

This trial is a 24 weeks, randomised, parallel-group, double-blind, placebo-controlled phase III trial. Approximately 202 subjects will be randomised (1:1) to receive treatment with HDM SLIT-tablet or placebo. The trial will be conducted in China, with subjects recruited and treated in China. Two EEC assessments (baseline and end of treatment) will take place at a validated EEC facility in Austria.

The primary objective is to demonstrate the efficacy of the HDM SLIT-tablet (12 SQ-HDM) once daily compared to placebo in the treatment of HDM AR nasal symptom determined during the EEC session at week 24.

Being tested
Sublingual allergy immunological tablet, Placebo
Keywords
House Dust Mite, Allergic rhinitis, Allergic conjunctivitis, China, Environmental exposure chamber
Medical subject headings
Rhinitis, Allergic, Conjunctivitis, Allergic

What participants receive

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

  • Sublingual allergy immunological tabletBiological

    Also called 12 SQ HDM SLIT-tablet, Acarizax

    For daily administration (1 tablet per day)

  • PlaceboOther

    Also called Placebo sublingual tablet

    For daily administration (1 tablet per day)

Study groups in NCT04176185
Study groupRoleWhat they receive
ActiveExperimentalHDM SLIT-tablet once daily for approximately 24 weeks
Receives: Biological: Sublingual allergy immunological tablet
PlaceboPlacebo comparatorPlacebo tablet once daily for approximately 24 weeks
Receives: Other: Placebo

What is being measured

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

  1. Total Nasal Symptom Score (TNSS)

    Primary endpoint, average TNSS during the EEC session at week 24, defined as the average of all TNSS observed in the last 4 hours of the EEC session at week 24. Measured on a scale of 0 (no symptoms) to 12 (severe symptoms).

    Measured: Last 4 hours of the EEC session at week 24

Secondary outcomes (1)
  1. Total Symptom Score (TSS)

    Key secondary endpoint, average TSS during the EEC session at week 24, defined as the sum of the Total Ocular Symptom Score (TOSS) and TNSS observed in the last 4 hours of the EEC session at week 24. Measured on a scale of 0 (no symptoms) to 18 (severe symptoms).

    Measured: Last 4 hours of the EEC session at week 24

Timeline

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

  1. First posted25 Nov 2019
  2. Study start4 Nov 2019
  3. Primary completion17 Dec 2019
  4. Study completion19 Jan 2022

Why it stopped: COVID-19

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Parallel assignment
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04176185
Sponsor's protocol ID
MT-16
Acronym
QUEST
Status last verified
Feb 2021
First submitted
25 Oct 2019
Last updated
30 Jun 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Sublingual allergy immunological tablet in people with Allergic Rhinoconjunctivitis, run by ALK-Abelló A/S at 2 sites in 2 countries.

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 4 inclusion and 5 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: stopped early, as of the sponsor's last update on 30 Jun 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Austria, China. 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 phase mean?

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?

The study was stopped early (reason given: COVID-19). Results are not available in the source record.

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?

Total Nasal Symptom Score (TNSS) (time frame: Last 4 hours of the EEC session at week 24). 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 30 Jun 2022.

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