Skip to content

Safety and Efficacy of an Allergen Vaccine in Grass-Pollen Allergy

Safety, Immunogenicity and Clinical Efficacy of an Allergen Vaccine (CYT005-AllQbG10) in Subjects With Seasonal Rhinoconjunctivitis Due to Grass-Pollen Allergy

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00293904
Enrollment
36
Registered
2006-02-20
Start date
2006-02-28
Completion date
2007-02-28
Last updated
2007-09-20

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

Conditions

Hypersensitivity

Keywords

Allergy, Grass Pollen, Systemic Immunotherapy

Brief summary

The purpose of this study is to evaluate whether the use of a specific immunomodulatory principle (QbG10) together with conventional grass pollen allergen leads to a more rapid and more pronounced decrease of sensitivity against pollen than with the grass pollen allergen alone

Interventions

BIOLOGICALCYT005-AllQbG10

Sponsors

Cytos Biotechnology AG
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* 18 to 65 years of age * Mild to moderate seasonal allergic rhinoconjunctivitis due to sensitization against grass pollen as evident from history (≥ 2 years), and positive nasal provocation test (NPT) and positive skin prick test (SPT, wheal ≥ 3mm larger than diluent) to grass pollen extract * Female participants must meet one of the following criteria: No reproductive potential due to menopause (one year without menses, in case of doubts serum FSH will be determined and must be \>40 U/mL), hysterectomy, bilateral oophorectomy, or tubal ligation. Patient agrees to consistently practice an effective and accepted method of contraception throughout the duration of the study and for 1 additional months after the last immunization (hormone-based, or intrauterine device, or double barrier contraception, i.e. condom + diaphragm, condom or diaphragm + spermicidal gel or foam) * Written informed consent * Patient is willing and able to comply with all trial requirements

Exclusion criteria

* Additional allergies (seasonal or perennial) of which the symptoms overlap temporally with the screening and treatment period * Contraindication to Allergen Preparation * Contraindication for Nasal Provocation Test * Contraindication for Skin Prick Test * Actual significant obstructive pulmonary disorder (FEV1\< 70%) * Pharmacological treatment that could affect allergic sensitivity during the trial * Presence or history of significant cardiovascular, renal, pulmonary, endocrine, autoimmune, neurological, and psychiatric disease as judged by the investigator * Serum test positive for HIV, HBV, or HCV * Current diagnosis or history of malignancy; presence of suspicious lymphadenopathy or splenomegaly on physical examination * Pregnancy or lactation * Blood donation within 30 days before enrolment * History of abuse of alcohol or other recreational drugs * Specific immunotherapy against pollen allergy within the last two years * Intake of an investigational drug within three month before enrolment * Intake of contraindicated medicaments for SIT as Betablockers, ACE/ATII Inhibitors

Design outcomes

Primary

MeasureTime frame
Nasal Provocation Tests

Secondary

MeasureTime frame
Allergy and Medication Questionnaires

Countries

Switzerland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026