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Allergic RhinitisPhase 3LARbirchNCT03157505

Efficacy and Safety of Birch Pollen Immunotherapy in Local Allergic Rhinitis

A Phase 3 study testing Purethal Birch immunotherapy in people with Allergic Rhinitis and Allergic Reaction, run by Medical University of Silesia.

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

Local allergic rhinitis (LAR) is relatively new disease. The question of effect of allergen specific immunotherapy on LAR is open. The randomized, double blind placebo controlled trial of birch subcutaneous AIT on LAR were performed in twenty eight patients. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Allergic Rhinitis, Allergic Reaction
What is being tested?
Purethal Birch immunotherapy
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
78 participants
Where
No sites listed yet
Study dates
5 Jan 2014to 2 Mar 2017
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

  • well document symptoms of rhinitis during birch pollen season
  • positive nasal provocation test to birch
  • negative results of skin prick tests to inhalant allergen including: D. pteronyssius, D. farinae, grass pollen, birch, hazel, alder Alternaria, and cat.
  • negative results of serum total and allergen specific IgE against mentioned allergens.

Who cannot join

  • diagnosis of bronchial asthma, non-allergic rhinitis (especially senile or vasomotor rhinitis) and severe non-stable diseases. All subjects were required to abstain from anti-allergy drugs and glucocorticoid nasal drops for at least 6 weeks prior to the start of the study.

About this study

Local allergic rhinitis (LAR) is relatively new disease. The question of effect of allergen specific immunotherapy on LAR is open. The randomized, double blind placebo controlled trial of birch subcutaneous AIT on LAR were performed in twenty eight patients. The therapy was performed during 24 months in proportion 15 patients with AIT and 13 placebo. The primary endpoint was decreased of symptoms medication score (SMS). Additionally monitoring serum specific IgE, specific IgG4 and nasal specific IgE (nsIgE) to Bet v1 and parameters of safety and quality of life were provided.

Read the detailed description

Local allergic rhinitis (LAR) is still an under diagnosed and under treated disease. It is characterised by local production of IgE during natural exposure to aeroallergens. These patients have negative skin prick tests and serum-specific IgEs but have positive nasal provocation tests for aeroallergens. More than 50% of patients with chronic non-allergic rhinitis may have a problem with lack of LAR diagnosis. Misdiagnosis can lead to mistakes in the treatment as well as inefficiencies.

Besides on only local IgE-mediated reaction, allergen immunotherapy (AIT) could be a potential way of treatment such patients. However, there are only sufficient data that the AIT is effective in allergic rhinoconjunctivitis and asthma to pollens and house dust mites and some animal.

The aim of this study was to assess the safety and efficacy of AIT for birch pollen allergens in patients with local allergic rhinitis and a confirmed birch pollen allergy.

Being tested
Purethal Birch immunotherapy, Placebo and symptomatic treatment
Medical subject headings
Rhinitis, Allergic, Hypersensitivity

What participants receive

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

  • Purethal Birch immunotherapyDrug

    Also called allergen specific immunotherapy

    Purethal birch was administered as perennial therapy: 24 months

  • Placebo and symptomatic treatmentOther

    symptomatic treatment including: antihitamine drug, nasal dropps and placebo injection

Study groups in NCT03157505
Study groupRoleWhat they receive
Purethal Birch immunotherapyActive comparatorPurethat Birch intervention and symptomatic treatment for 24 months
Receives: Drug: Purethal Birch immunotherapy
placebo and symptomatic treatmentPlacebo comparatorplacebo intervention and symtomatic treatment during 24 months
Receives: Other: Placebo and symptomatic treatment

What is being measured

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

  1. area under the curve (AUC)

    area under the curve (AUC) for the combined symptom and medication scores (SMS)

    Measured: 24 months

Timeline

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

  1. First posted17 May 2017
  2. Study start5 Jan 2014
  3. Primary completion30 Dec 2016
  4. Study completion2 Mar 2017

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
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
78 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03157505
Sponsor's protocol ID
605060184JB
Acronym
LARbirch
Status last verified
May 2017
First submitted
15 May 2017
Last updated
17 May 2017
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Rondon C, Romero JJ, Lopez S, Antunez C, Martin-Casanez E, Torres MJ, Mayorga C, R-Pena R, Blanca M. Local IgE production and positive nasal provocation test in patients with persistent nonallergic rhinitis. J Allergy Clin Immunol. 2007 Apr;119(4):899-905. doi: 10.1016/j.jaci.2007.01.006. Epub 2007 Mar 2.

    PubMed 17337294
  • Bozek A, Kolodziejczyk K, Jarzab J. Efficacy and safety of birch pollen immunotherapy for local allergic rhinitis. Ann Allergy Asthma Immunol. 2018 Jan;120(1):53-58. doi: 10.1016/j.anai.2017.10.009.

    PubMed 29273130

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Purethal Birch immunotherapy in people with Allergic Rhinitis and Allergic Reaction, run by Medical University of Silesia.

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 1 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 17 May 2017. Status can change between updates, so confirm with the study contact before making plans.

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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

area under the curve (AUC) (time frame: 24 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03157505, which also lists 2 linked publications.

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 17 May 2017.

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