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AllergyPhase 3NCT00418379

Phase III Study to Assess the Long Term Efficacy, Carry-over Effect and Safety of 300 IR Sublingual Immunotherapy Tablets

A Phase 3 study testing 300 IR (4M) and 300 IR (2M) in people with Allergy, run by Stallergenes Greer at 1 site in France.

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

A phase III study to evaluate Long term efficacy , carry-over effect and safety of 300 IR sublingual Immunotherapy (SLIT) tablets in adults patients suffering from grass pollen rhinoconjunctivitis Read more about this study

Who is it for?
Ages 18 to 50 years
Conditions the study is for
Allergy
What is being tested?
300 IR (4M) and 300 IR (2M)
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
633 participants
Where
1 siteFrance
Study dates
Dec 2006to Sep 2011
Phase
Phase 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 50 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Male or female outpatients aged 18 to 50 years
  • Grass pollen-related allergic rhinoconjunctivitis for at least the last two pollen seasons
  • Positive SPT and specific IgE values of at least Class 2 for grass pollen allergens
  • A score of greater than or equal to 12 out of a possible 18 on the Retrospective Rhinoconjunctivitis Total Symptom Score (RRTSS)

Who cannot join

  • Patients with symptoms of rhinoconjunctivitis during the grass pollen season due to sensitisation to allergens other than grass pollen must not be included. Patients must be asymptomatic to all other allergens during the grass pollen season. Patients who have allergic rhinitis due to perennial allergen may not be included.
  • Asthma requiring treatment other than beta-2 inhaled agonists.
  • Patients who have received any desensitisation treatment for grass pollen or with any other allergen within the previous 5 years.

Trial locations and contacts

1 site in 1 country.

France1 site
  • DIDIER

    Toulouse, 31400

Other trials in France

About this study

Official title: A Randomised, Double-blind, Placebo-controlled, Multi-national, Multi-centre, Phase III Study to Assess the Long Term Efficacy, Carry-over Effect and Safety of Two Dosing Regimens of 300 IR Sublingual Immunotherapy (SLIT) Administered as Allergen-based Tablets Once Daily to Patients Suffering From Grass Pollen Rhinoconjunctivitis

A phase III study to evaluate Long term efficacy , carry-over effect and safety of 300 IR sublingual Immunotherapy (SLIT) tablets in adults patients suffering from grass pollen rhinoconjunctivitis

Conditions
Allergy
Being tested
300 IR (4M), 300 IR (2M), Placebo
Keywords
Sublingual immunotherapy, Grass pollen tablet, Allergic rhinoconjunctivitis
Medical subject headings
Hypersensitivity

What participants receive

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

  • 300 IR (4M)Drug

    Also called Sublingual immunotherapy tablet

    300 IR grass pollen allergen extract tablet starting 4 months before the pollen season

  • 300 IR (2M)Drug

    Also called Sublingual immunotherapy tablet

    300 IR grass pollen allergen extract tablet starting 2 months before the pollen season

  • PlaceboDrug

    Also called Sublingual placebo tablet

    Placebo tablet

Study groups in NCT00418379
Study groupRoleWhat they receive
300 IR (4M)Experimental300 IR grass pollen allergen extract tablet, treatment starting 4 months before the pollen season
Receives: Drug: 300 IR (4M)
300 IR (2M)Experimental300 IR grass pollen allergen extract tablet, treatment starting 2 months before the pollen season
Receives: Drug: 300 IR (2M)
PlaceboPlacebo comparatorPlacebo tablet
Receives: Drug: Placebo

What is being measured

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

  1. Average Adjusted Symptom Score (AAdSS)

    The Adjusted Symptom Score (AdSS) is a subject-specific symptom score which is adjusted for rescue medication use.

    Participants assessed daily, during the Year 3 pollen period while on treatment, 6 rhinoconjunctivitis symptoms (sneezing, rhinorrhea, nasal pruritus, nasal congestion, ocular pruritus and watery eyes) each symptom is scored as follows: 0: no symptoms, 1: mild symptoms, 2: moderate symptoms, 3: severe symptoms. The sum of the 6 symptoms is the Rhinoconjunctivitis Total Symptom Score (RTSS) (range 0-18). If the subject took rescue medication on a given day, the AdSS equals the RTSS of that day or the AdSS of the day before, whichever is higher. This adjustment applies to the day of rescue medication use and the following day. Like the RTSS, the AdSS ranges from 0 to 18. The lower the score, the better the outcome.

    Measured: Pollen period (average of 33.8 days) of Year 3

Timeline

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

  1. First posted4 Jan 2007 (estimated)
  2. Study startDec 2006
  3. Primary completionAug 2010
  4. Study completionSep 2011

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
Double blind
Who is masked
Participant, Investigator
Enrolment
633 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00418379
Sponsor's protocol ID
VO53.06
Status last verified
Apr 2016
First submitted
3 Jan 2007
Last updated
25 May 2016
Data monitoring committee
Yes

Publications

  • Didier A, Worm M, Horak F, Sussman G, de Beaumont O, Le Gall M, Melac M, Malling HJ. Sustained 3-year efficacy of pre- and coseasonal 5-grass-pollen sublingual immunotherapy tablets in patients with grass pollen-induced rhinoconjunctivitis. J Allergy Clin Immunol. 2011 Sep;128(3):559-66. doi: 10.1016/j.jaci.2011.06.022. Epub 2011 Jul 29.

    PubMed 21802126
  • Didier A, Malling HJ, Worm M, Horak F, Sussman G, Melac M, Soulie S, Zeldin RK. Post-treatment efficacy of discontinuous treatment with 300IR 5-grass pollen sublingual tablet in adults with grass pollen-induced allergic rhinoconjunctivitis. Clin Exp Allergy. 2013 May;43(5):568-77. doi: 10.1111/cea.12100.

    PubMed 23600548
  • Didier A, Malling HJ, Worm M, Horak F, Sussman GL. Prolonged efficacy of the 300IR 5-grass pollen tablet up to 2 years after treatment cessation, as measured by a recommended daily combined score. Clin Transl Allergy. 2015 May 22;5:12. doi: 10.1186/s13601-015-0057-8. eCollection 2015.

    PubMed 26097680

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing 300 IR (4M) and 300 IR (2M) in people with Allergy, run by Stallergenes Greer at 1 site in France.

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 3 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 25 May 2016. 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 France. 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?

Yes. Results are posted in the registry (first posted 25 May 2016). 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 Adjusted Symptom Score (AAdSS) (time frame: Pollen period (average of 33.8 days) of Year 3). 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 NCT00418379, which also lists 3 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 25 May 2016.

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