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AllergyPhase 3NCT01964768

Sensitivity and Specificity of 3 Solutions of Allergen Extract for Diagnosis by Skin Prick Testing

A Phase 3 study testing Skin prick-test in people with Allergy, run by Stallergenes Greer.

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 determine the sensitivity and specificity of three solutions of different allergen extracts for diagnosis by skin prick-test: 5 Grasses pollen, Birch pollen, Dermatophagoides pteronyssinus mite Read more about this study

Who is it for?
Ages 5 to 60 years
Conditions the study is for
Allergy
What is being tested?
Skin prick-test
How many people
324 participants
Where
No sites listed yet
Study dates
Dec 2010to Feb 2012
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 5 to 60 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Written informed consent to participate in the study
  • Male or female subjects aged 5-60 years inclusive
  • Female of childbearing potential must be on a reliable method of contraception and have a negative urine pregnancy test
  • Presence of a clinical history of allergy: seasonal or perennial rhinitis, conjunctivitis and/or asthma during grass or birch pollen seasons (at least two pollen seasons) and/or due to mite exposure (at least two years)
  • Subjects affiliated to a social security system

Who cannot join

  • Pregnant or breastfeeding women
  • Dermographism
  • Absence of cutaneous reactivity
  • Presence of cutaneous lesions on the forearms either preventing the performance of the test or potentially interfering with the interpretation of the test
  • Subjects presenting unstable asthma or poor general health condition
  • Subjects with past or current specific immunotherapy treatment for any of the 3 tested allergens (Grass, Birch pollens, D. pteronyssinus and/or D. farinae mites) in the previous 5 years
Show all 12Show fewer
  • Any oral antihistaminic treatment in the previous 3 days or 10 days in case of loratadine or desloratadine
  • Subjects on anti-IgE treatment
  • Subjects treated with beta-blockers and/or anti-depressives.
  • Subjects currently participating in another clinical trial or still in exclusion period for a previous clinical trial
  • Investigators, co-investigators, as well as their children or spouses and all the study collaborators
  • Subjects under protection of the courts, legal guardianship or legal trusteeship

About this study

Official title: Determination of Sensitivity and Specificity of Three Solutions of Allergen Extract (5 Grasses, Birch Pollens and Dermatophagoides Pteronyssinus Mites) for Diagnosis by Skin Prick Testing

A Phase III study to determine the sensitivity and specificity of three solutions of different allergen extracts for diagnosis by skin prick-test:

  • 5 Grasses pollen,
  • Birch pollen,
  • Dermatophagoides pteronyssinus mite
Conditions
Allergy
Being tested
Skin prick-test
Medical subject headings
Hypersensitivity

What participants receive

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

  • Skin prick-testOther

What is being measured

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

  1. Skin wheal measure for each tested solution. For each allergen tested, 2 variables, positive SPT and negative SPT were defined. A SPT reaction was considered positive when the mean wheal diameter was >3 mm. A SPT reaction ≤3 mm was considered negative.

    Measured: For each subject, the study consisted in one visit of about 60 minutes including skin prick-test and collection of blood sample for IgE determination.

Secondary outcomes (1)
  1. One of the secondary measurement was the wheal diameter for each allergen.

    Measured: SPT measurements were performed after the study visit, an expected average of 1 week.

Timeline

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

  1. First posted17 Oct 2013 (estimated)
  2. Study startDec 2010
  3. Primary completionJun 2011
  4. Study completionFeb 2012

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
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
324 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01964768
Sponsor's protocol ID
DG40.08
Status last verified
Oct 2013
First submitted
10 Oct 2013
Last updated
17 Oct 2013
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Skin prick-test in people with Allergy, run by Stallergenes Greer.

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 12 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 Oct 2013. 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. 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?

Skin wheal measure for each tested solution. For each allergen tested, 2 variables, positive SPT and negative SPT were defined. A SPT reaction was considered positive when the mean wheal diameter was >3 mm. A SPT reaction ≤3 mm was considered negative. (time frame: For each subject, the study consisted in one visit of about 60 minutes including skin prick-test and collection of blood sample for IgE determination.). 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 17 Oct 2013.

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Clinical Trial NCT01964768 | AzTrials