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We plan to determine changes in the immune system during the allergic response to grass pollen allergens. We have chosen a particular element of the immune response, the immunoglobulin G4 (IgG4) as an indicator.
We hypothesize that treatment with Grazax will increase serum levels of Phleum pratense specific IgG4 and IgE, as well as reduce the cutaneous sensitivity of the early (IgE mediated) and late (cell mediated) allergic response.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 1 | Active Comparator |
| |
| 2 | Placebo Comparator |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| ALK Grass tablet | Biological |
|
| Measure | Description | Time Frame |
|---|---|---|
| Difference in serum leves of IgG4 | 6 months |
| Measure | Description | Time Frame |
|---|---|---|
| Changes in IgE level | 6 months | |
| Changes in cutaneous response | 6 months |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Pilar Rico, MD | Medical Director, ALK-Abello, S.A. | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hospital Clinico San Carlos | Madrid | Madrid | 28040 | Spain |
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| ID | Term |
|---|---|
| D006967 | Hypersensitivity |
| D012220 | Rhinitis |
| ID | Term |
|---|---|
| D007154 | Immune System Diseases |
| D012141 | Respiratory Tract Infections |
| D007239 | Infections |
| D009668 | Nose Diseases |
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| D012140 |
| Respiratory Tract Diseases |
| D010038 | Otorhinolaryngologic Diseases |