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CompletedNCT01438463Updated May 29, 2013

PURETHAL® Mites Dose Range Finding Study in Patients With Persistent Allergic Rhinitis/Rhinoconjunctivitis

A Phase 2 interventional study of Placebo and PURETHAL Mites 6,667 AU/ml in Allergic Rhinitis and Allergic Rhinoconjunctivitis, sponsored by HAL Allergy. Completed at 35 sites in 5 countries. Open to participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2013-05-29.

Sponsored by HAL Allergy · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
290
Allocation
Randomized
Ages
18 Years to 60 Years
Sex
All
01

Study summary

The objective of the present study is to characterize the dose-response relationship of PURETHAL® Mites with a nasal provocation test in order to support the optimal dose in terms of clinical efficacy and safety.

For this purpose 5 groups of 50 patients, suffering from rhinitis or rhinoconjunctivitis due to House Dust Mite Allergy will be treated during 1 year. Before start, after 6 months of treatment and at the end of the study patients will be subjected to a nasal provocation test.

02

Conditions studied

  • Allergic Rhinitis
  • Allergic Rhinoconjunctivitis

Keywords

  • non-seasonal allergy
  • house dust mite
  • immunotherapy
  • dose response
03

In context

Rhinitis

1,105 studies on the registry are indexed under Rhinitis; 65 are open to participants now.

This study's enrollment of 290 is above the median of 89 across 906 interventional studies indexed under Rhinitis.

Browse Rhinitis studies →

Lead sponsor

HAL Allergy is the lead sponsor of 15 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Signed informed consent
  • Patients (male or female) must be ≥ 18 and ≤ 60 years at screening
  • Patients with allergic rhinitis or rhinoconjunctivitis for at least 1 year; allergic symptoms related to HDM, with or without concomitant clinically stable controlled mild to moderate asthma (according to GINA classification)
  • Patients with a history of concomitant asthma should have a FEV1 > 70% at inclusion. Patients without a history of asthma should have a FEV1 > 70% or a PEF > 80%.
  • Positive SPT to HDM D. pter and/or D. far
  • Serum specific IgE-test (ssIgE) level for HDM D. pter or D. far at screening
  • Positive nasal provocation test for HDM extract at screening

Exclusion criteria

Exclusion Criteria:

  • Current clinically relevant symptoms of seasonal rhinitis/rhinoconjunctivitis caused by other allergen(s) than HDM (with a demonstrated positive SPT for this allergen) at the time of inclusion
  • Patients sensitized to animals should not be included if they are symptomatic upon exposure and regularly exposed to animals
  • Completed allergen-specific immunotherapy (SCIT or SLIT) with HDM within the last 5 years
  • Completed unsuccessful allergen-specific immunotherapy (SCIT or SLIT) within the past 5 years
  • Allergen-specific immunotherapy (SCIT or SLIT) with other allergens than HDM during the study period
  • Any vaccination one week before start of therapy and during the up-dosing phase
  • Any anti-IgE therapy within the last 6 months prior to inclusion and during study
  • Severe immune disorders (including auto-immune diseases) and/or diseases requiring immunosuppressive drugs
  • Active malignancies or any malignant disease in the past 5 years
  • A chronic or acute disease that in the opinion of the investigator might place the patient at an additional risk, including but not limited to the following: cardiovascular insufficiency, any severe or unstable lung diseases, endocrine disorders, clinically significant renal or hepatic diseases, or haematological disorders
  • Moderate to severe nasal obstructive diseases such as polyps, septal deviations etc.
  • Clinically significant chronic sinusitis or ocular infection
  • Diseases with a contra-indication for the use of adrenaline (e.g. hyperthyroidism, glaucoma)
  • Use of systemic corticosteroids within 4 weeks of screening
  • Treatment with systemic or local b-blockers
  • Participation in a clinical study with a new investigational drug within the last 3 months or a biological within the last 6 months prior to the study or during the study
  • Pregnancy, lactation or inadequate contraceptive measures (contraceptive measures considered as adequate include appropriate use of oral contraception, i.m. contraception or a contraceptive device)
  • Alcohol, drug, or medication abuse within the past year and during study
  • Any abnormal laboratory parameter at screening that in the opinion of the investigator is considered clinically relevant
  • Lack of co-operation or compliance
  • Severe psychiatric, psychological, or neurological disorders
  • Patients who are employees of the department, 1st grade relatives, or partners of the investigator
  • Expected changes in HDM exposure during the study (avoidance measures, move, etc.)
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
290 participants (actual)

Study arms

  • Placebo comparator
    placebo

    Biological: Placebo

  • Experimental
    PURETHAL Mites, 6,667 AU/ml

    Biological: PURETHAL Mites 6,667 AU/ml

  • Experimental
    PURETHAL Mites, 20,000 AU/ml

    Biological: PURETHAL Mites 20,000 AU/ml

  • Experimental
    PURETHAL Mites, 50,000 AU/ml

    Biological: PURETHAL Mites 50,000 AU/ml

  • Experimental
    PURETHAL Mites, 100,000 AU/ml

    Biological: PURETHAL Mites 100,000 AU/ml

Interventions

  • BiologicalPlacebo

    Increasing volumes of placebo, will be administered by subcutaneous injection (starting with 0.05 ml) at weekly intervals till the maintenance dose (0.5 ml) is reached. Subsequently, maintenance dosages, corresponding to 0.5 ml of placebo, are given at 4-weekly intervals.

  • BiologicalPURETHAL Mites 6,667 AU/ml

    Increasing dosages, corresponding to increasing volumes of drug solution (starting with 0.05 ml), will be administered by subcutaneous injection at weekly intervals till the maintenance dose (0.5 ml) is reached. Subsequently, maintenance dosages, corresponding to 0.5 ml of drug solution, are given at 4-weekly intervals.

  • BiologicalPURETHAL Mites 20,000 AU/ml

    Increasing dosages, corresponding to increasing volumes of drug solution (starting with 0.05 ml), will be administered by subcutaneous injection at weekly intervals till the maintenance dose (0.5 ml) is reached. Subsequently, maintenance dosages, corresponding to 0.5 ml of drug solution, are given at 4-weekly intervals.

  • BiologicalPURETHAL Mites 50,000 AU/ml

    Increasing dosages, corresponding to increasing volumes of drug solution (starting with 0.05 ml), will be administered by subcutaneous injection at weekly intervals till the maintenance dose (0.5 ml) is reached. Subsequently, maintenance dosages, corresponding to 0.5 ml of drug solution, are given at 4-weekly intervals.

  • BiologicalPURETHAL Mites 100,000 AU/ml

    Increasing dosages, corresponding to increasing volumes of drug solution (starting with 0.05 ml), will be administered by subcutaneous injection at weekly intervals till the maintenance dose (0.5 ml) is reached. Subsequently, maintenance dosages, corresponding to 0.5 ml of drug solution, are given at 4-weekly intervals.

06

What researchers measure

Primary outcomes

  1. Sensitivity to House Dust Mite (HDM) allergen assessed by a Nasal Provocation Test

    Time frame: 12 months

Secondary outcomes

  1. Sensitivity to HDM allergen assessed by a Nasal Provocation Test

    Time frame: 6 months

  2. Average Adjusted daily Symptom Score (AAdSS)

    Time frame: last 2 months of treatment

  3. Peak Nasal Inspiratory Flow (PNIF)

    Time frame: at each visit during 1 year treatment

  4. Specific serum IgE, IgG, and IgG4 immunoglobulin concentrations to house dust mite

    Time frame: 6 and 12 months treatment

  5. Local and systemic reactions after injection as a measure of Safety and Tolerability

    Time frame: 24 hours after each injection during 1 year treatment

07

Study locations

35 sites
  • Univ.-Klinik für Dermatologie und Venerologie
    Innsbruck, A-6020, Austria
  • Universitätsklinik für Hals -, Nasen - und Ohrenheilkunde
    Innsbruck, A-6020, Austria
  • UZ Gent
    Gent, B-9000, Belgium
  • UZ Leuven campus Sint Rafaël
    Leuven, B-3000, Belgium
  • CHU de Liège
    Liège, B-4000, Belgium
  • HNO-Praxis Dr. Hippke
    Berlin, D-13057, Germany
  • Universitätsklinikum Bonn
    Bonn, D-53127, Germany
  • HNO-Praxis
    Chemnitz, D-09130, Germany
  • Gemeinschaftspraxis Pneumologie und Allergologie Dr. Hans-Christian Blum
    Dortmund, D-44263, Germany
  • HNO-Praxis Dr. U. Thieme
    Duisburg, D-47051, Germany
  • Medizinisches Versorgungszentrum
    Düren, D-52351, Germany
  • Universitätsklinikum Erlangen
    Erlangen, D-91052, Germany
  • HNO Gemeinschaftspraxis
    Göttingen, D-37073, Germany
  • Pneumologische Praxis Hannover Nordstadt
    Hannover, D-30167, Germany
  • HNO Gemeinschaftspraxis
    Heidelberg, D-69126, Germany
  • HNO-Praxis
    Jülich, D-52428, Germany
  • POIS Leipzig GbR
    Leipzig, D-04357, Germany
  • CRS Clinical Research Services Mannheim GmbH
    Mannheim, D-68167, Germany
  • CRS Clinical Research Services Möchengladbach GmbH
    Mönchengladbach, D-41061, Germany
  • Gemeinschaftspraxis HNO/Allergologie
    München, D-80331, Germany
  • Klinikum der Universität München
    München, D-80337, Germany
  • Pneumologie Odeonsplatz
    München, D-80539, Germany
  • HNO-Praxis
    Pirna, D-01796, Germany
  • Praxisgemeinschaft Reiber & Partner
    Schorndorf, D-73614, Germany
  • Universitätsklinikum Stuttgart
    Stuttgart, D-70374, Germany
  • Hautarztpraxis
    Stuttgart, D-70499, Germany
  • Zentrum für Rhinologie und Allergologie
    Wiesbaden, D-65183, Germany
  • EB FlevoResearch
    Almere, NL-1311 RL, Netherlands
  • Allergologie Praktijk Arnhem (APA)
    Arnhem, NL-6824 BJ, Netherlands
  • Albert Schweitzer (Amstelwijck)
    Dordrecht, NL-3317 NM, Netherlands
  • QPS Onderzoekskliniek Universitair Medisch Centrum Groningen
    Groningen, NL-9713 GZ, Netherlands
  • St. Elisabethziekenhuis
    Tilburg, NL-5022 GC, Netherlands
  • Hospital Clinico Barcelona
    Barcelona, 08036, Spain
  • Hospital Universitario Germans Trios i Pujol
    Barcelona, 08916, Spain
  • Hospital Universitari Politecnic La Fe
    Valencia, 46026, Spain
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 29, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01438463
Lead sponsor
HAL Allergy
Responsible party
Sponsor
First posted
Sep 22, 2011
Start date
Sep 2011
Primary completion
May 2013
Completion
May 2013
Last update
May 29, 2013

Study contacts

Claus Bachert, PhD, MD
study chair · University Gent, Belgium

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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