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A randomised, parallel-group, double-blind, placebo-controlled, multicentre Phase III trial assessing the pharmacodynamic efficacy and safety of an intraseasonal short-time updosing schedule for Alutard SQ - Intraseasonal short-time updosing for Alutard SQ

A randomised, parallel-group, double-blind, placebo-controlled, multicentre Phase III trial assessing the pharmacodynamic efficacy and safety of an intraseasonal short-time updosing schedule for Alutard SQ - Intraseasonal short-time updosing for Alutard SQ

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2007-000921-23-DE
Enrollment
Unknown
Registered
2007-04-24
Start date
2008-01-31
Completion date
Unknown
Last updated
2014-01-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Grass pollen induced allergic rhinoconjunctivitis requiring treatment during the grass pollen season. MedDRA version: 9.1 Level: LLT Classification code 10001728 Term: Allergic rhinoconjunctivitis

Interventions

Trade Name: ALK-depot SQ 200 Gräsermischung und Roggen Pharmaceutical Form: Injection* Other descriptive name: 6 grass mix and rye pollen allergen Concentration type: equal Concentration number: 1.000

Sponsors

ALK-SCHERAX Arzneimittel GmbH
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Inclusion criteria: Male and female patients 18-65 years of age who have given informed consent, with the following selection criteria: • A clinical history of grass pollen induced allergic rhinoconjunctivitis of two years or more requiring treatment during the grass pollen season • Positive Skin Prick Test (SPT) response to grass pollen Phleum pratense (wheal diameter = 3 mm) currently performed or not older than 60 days before V1 • If pre-menopausal female of childbearing potential, the subject must test negative on standard urine pregnancy test and must be willing to practice appropriate contraceptive methods for the duration of the trial. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: • Not controlled or severe bronchial asthma • Anamnestically known high degree of sensitivity against grass pollen • Previous treatment by immunotherapy with grass pollen allergen or any other allergen within the previous 5 years • Autoimmune disorders • Exclusion criteria in accordance with contraindications in the SPC of Alutard SQ 6 grass mix + rye (secale) (= ALK-depot SQ Gräsermischung und Roggen).

Design outcomes

Primary

MeasureTime frame
Main Objective: The primary objective of the trial is to demonstrate the pharmacodynamic efficacy of specific immunotherapy with intraseasonal updosing compared to placebo in subjects with grass pollen induced rhinoconjunctivitis, based on IgX, i.e.: To demonstrate a lower level of IgX at Visit 9, approximately 9 weeks after start of updosing (i.e. approximately 2 weeks after the 8th injection), as compared to placebo. ;Secondary Objective: The secondary objectives of the trial are: ? To demonstrate the pharmacodynamic efficacy of specific immunotherapy with intraseasonal updosing compared to placebo with respect to 1. IgX measured at Visits 6 and 7 2. IgG4 measured at Visits 6, 7, and 9, i.e.: To demonstrate a lower level of IgX at Visits 6 and 7, approximately 1 and 3 weeks after start of updosing, as compared to placebo. AND To demonstrate a higher level of IgG4 at Visits 6, 7, and 9 approximately 1, 3, and 9 weeks after start of updosing, as compared to placebo. ? To demonstrate a lower nasal reactivity against challenge with Phleum pratense measured at study end with the titrated nasal provocation test as compared to placebo. ? To demonstrate a lower skin reactivity against challenge with Phleum pratense measured at study end with the titrated skin prick test as compared to placebo.;Primary end point(s): Immunological changes from baseline in spec. IgX against Phleum pratense after 9 weeks.

Countries

Germany

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026