Subcutaneous Immunotherapy in Patients Sensitized to Phleum Pratense
Allergic Rhinoconjunctivitis
About this trial
This is an interventional treatment trial for Allergic Rhinoconjunctivitis focused on measuring Allergic rhinitis, Phleum pratense, Timothy grass pollen allergy, subcutaneous immunotherapy
Eligibility Criteria
Inclusion Criteria:
- Patients must sign the informed consent form.
- Patients must be between 18 and 60 years of age.
- Patients who obtained a prick test result greater or equal to 3 mm diameter and a specific IgE greater or equal to class 2 (CAP/PHADIA) to Phleum pratense.
- Patients with seasonal allergic rhinoconjunctivitis against Phleum pratense during a minimum of 2 years prior to study participation. Although allergic rhinoconjunctivitis is the pathology under study, the inclusion of patients with mild or moderate concomitant asthma is allowed.
Patients will preferably be monosensitized to Phleum pratense. Polysensitized patients to other seasonal allergens will be accepted if sensitizations are caused by Pollens whose seasons do not overlap with Phleum pratense.
Polysensitized patients to perennial allergens will also be accepted if not clinically relevant during the study period.
- Women of childbearing potential must have a negative urine pregnancy test at Screening visit/Visit 0
- Women of childbearing potential must agree to use an appropriate contraception method during the study if they are sexually active.
Exclusion Criteria:
- Stable and continued use of medication for allergic pathology during 2 weeks prior to inclusion.
- Patients sensitised to other overlapping seasonal allergens and with specific IgE levels greater or equal to class 2 CAP/PHADIA.
- Patients who received immunotherapy in the previous 5 years for Phleum pratense or for any allergen with cross reactivity or patients that are currently receiving immunotherapy for any allergen.
- Patients with severe asthma or FEV1 lower than 60% or asthma requiring inhaled or systemic corticoid treatment at the time of study entry or within 8 weeks prior to treatment commencement.
- Patients with: immunological, cardiac, renal or hepatic illnesses or any other medical condition that the investigator deems relevant so as to interfere with the study.
- Patients with a previous history of anaphylaxis
- Patients with unstable angina
- Patients with uncontrolled hypertension
- Patients with clinically significant arrythmias
- Patients with neoplasia
- Patients with clinically relevant malformations of the upper respiratory tract.
- Other chronic or immunological disease that could interfere with the assessment of the investigation product or that could generate any additional risk for the patient
- Patients who have participated in another clinical trial within 3 month prior to enrolment.
- Patients under treatment with tricyclic antidepressives, psychotropics or beta-blockers
- Female patients who are pregnant or breast-feeding or women of childbearing potential that do not agree to use an appropriate contraception method during the study if they are sexually active, if they have not been surgical sterilised or present any other incapacity to bear
- Patient who does not attend the visits
- Patient's lack of collaboration or refusal to participate.
Sites / Locations
- Hospital Ramón y Cajal
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Arm 5
Arm 6
Experimental
Placebo Comparator
Experimental
Placebo Comparator
Experimental
Placebo Comparator
Group A active
Group A placebo
Group B active
Group B placebo
Group C active
Group C placebo
6 administrations and 5 weeks duration Vial 2: 0.1 ml, 0.2 ml and 0.5 ml at 1 week intervals Vial 3: 0.1 ml, 0.2 ml and 0.5 ml at 1 week intervals.
6 administrations and 5 weeks duration Vial 2: 0.1 ml, 0.2 ml and 0.5 ml at 1 week intervals Vial 3: 0.1 ml, 0.2 ml and 0.5 ml at 1 week intervals.
8 administrations and 7 weeks duration Vial 1: 0.2 ml at 1 week intervals Vial 2: 0.1 ml, 0.2 ml, 0.4 ml at 1 week intervals Vial 3: 0.1 ml, 0.2 ml, 0.4 ml and 0.5 ml at 1 week intervals
8 administrations and 7 weeks duration Vial 1: 0.2 ml at 1 week intervals Vial 2: 0.1 ml, 0.2 ml, 0.4 ml at 1 week intervals Vial 3: 0.1 ml, 0.2 ml, 0.4 ml and 0.5 ml at 1 week intervals
8 administrations, 2 administrations in the same day. 1 week interval between 2 doses, during 3 weeks. Week 1: vial 2 - 2 administrations of 0.1 ml with 30 minute interval Week 2: vial 2 - 0.2 ml and 0.3 ml with 30 minute interval Week 3: vial 3 - 2 dose of 0.1 ml with 30 minute interval Week 4: vial 3 - 0.2 ml and 0.3 ml with 30 minute interval
8 administrations, 2 administrations in the same day. 1 week interval between 2 doses, during 3 weeks. Week 1: vial 2 - 2 administrations of 0.1 ml with 30 minute interval Week 2: vial 2 - 0.2 ml and 0.3 ml with 30 minute interval Week 3: vial 3 - 2 dose of 0.1 ml with 30 minute interval Week 4: vial 3 - 0.2 ml and 0.3 ml with 30 minute interval