Efficacy Study in Allergic Rhinitis Patients After Intranasal Administration of AZD8848

Mean of Reflective Total Nasal Symptom Score (absolute values) for symptoms over the last 10 minutes after allergen challenge, collected during clinic visits. The Mean is calculated over the Allergen challenge period, which is a seven day period. Each individual symptom is scored 0 to 3, which 0 = Absence of symptoms, 1 = Mild symptoms, 2 = Moderate symptoms and 3 = Severe symptoms. The scores of each individual symptom (runny nose, blocked nose and the maximum score of nasal itching or sneezing) will be added together to give a TNSS of 0 to 9. TNSS Score 0 indicates better outcome and TNSS score 9 indicates worse outcome. Allergen challenge period starts 24 hrs post last dose (visit 15). Number of Participants Analyzed is based on all patients with evaluable efficacy and/or biomarker data from the challenge period (Visit 15).

Mean of Reflective Total Nasal Symptom Score (absolute values) for symptoms over the last 10 minutes after allergen challenge, collected during clinic visits. The Mean is calculated over 4th day to 7th day of the Allergen challenge period. Each individual symptom is scored 0 to 3, which 0 = Absence of symptoms, 1 = Mild symptoms, 2 = Moderate symptoms and 3 = Severe symptoms. The scores of each individual symptom (runny nose, blocked nose and the maximum score of nasal itching or sneezing) will be added together to give a TNSS of 0 to 9. TNSS Score 0 indicates better outcome and TNSS score 9 indicates worse outcome. Allergen challenge period starts 24 hrs post last dose. Number of Participants Analyzed is based on all patients with evaluable efficacy and/or biomarker data from the challenge period (Visit 15).

Mean of morning measurements of Reflective Total Nasal Symptom Score (absolute values) of symptoms over the last 12 hours during allergen challenge, collected in patient diary. The Mean is calculated over the evening of the 1st day to the morning of 8th day of the Allergen challenge period. Each individual symptom is scored 0 to 3, which 0 = Absence of symptoms, 1 = Mild symptoms, 2 = Moderate symptoms and 3 = Severe symptoms. The scores of each individual symptom (runny nose, blocked nose and the maximum score of nasal itching or sneezing) will be added together to give a TNSS of 0 to 9. TNSS Score 0 indicates better outcome and TNSS score 9 indicates worse outcome. Allergen challenge period starts 24 hrs post last dose. Number of Participants Analyzed is based on all patients with evaluable efficacy and/or biomarker data from the challenge period (Visit 15).

Mean of evening measurements of Reflective Total Nasal Symptom Score (absolute values) of symptoms over the last 12 hours during allergen challenge, collected in patient diary. The Mean is calculated over the evening of the 1st day to the morning of 8th day of the Allergen challenge period. Each individual symptom is scored 0 to 3, which 0 = Absence of symptoms, 1 = Mild symptoms, 2 = Moderate symptoms and 3 = Severe symptoms. The scores of each individual symptom (runny nose, blocked nose and the maximum score of nasal itching or sneezing) will be added together to give a TNSS of 0 to 9. TNSS Score 0 indicates better outcome and TNSS score 9 indicates worse outcome. Allergen challenge period starts 24 hrs post last dose. Number of Participants Analyzed is based on all patients with evaluable efficacy and/or biomarker data from the challenge period (Visit 15).

Mean of Peak Nasal Inspiratory Flow (absolute values) recorded immediately after TNSS scoring (recall period 10 min), during Allergen challenge period. The Mean is calculated over the Allergen challenge period, which is a seven day period. The patient will breathe out as much as he can. Then a mask (Portable Inspiratory Flow Meter) will be placed over the nose and mouth and the patient will inspire forcefully through the nose while the lips remain tightly closed. The highest PNIF (L/minute) out of 3 measurements will be recorded. Allergen challenge period starts 24 hrs post last dose. Number of Participants Analyzed is based on all patients with evaluable efficacy and/or biomarker data from the challenge period (Visit 15).

Mean of Peak Nasal Inspiratory Flow (absolute values) recorded immediately after TNSS scoring (recall period 10 min), during Allergen challenge period. The Mean is calculated over 4th day to 7th day of the Allergen challenge period. The patient will breathe out as much as he can. Then a mask (Portable Inspiratory Flow Meter) will be placed over the nose and mouth and the patient will inspire forcefully through the nose while the lips remain tightly closed. The highest PNIF (L/minute) out of 3 measurements will be recorded. Allergen challenge period starts 24 hrs post last dose. Number of Participants Analyzed is based on all patients with evaluable efficacy and/or biomarker data from the challenge period (Visit 15).

Mean of morning measurements of Peak Nasal Inspiratory Flow (absolute values) of symptoms over the last 12 hours during allergen challenge, collected in patient diary. The Mean is calculated over the evening of the 1st day to the morning of 8th day of the Allergen challenge period. The patient will breathe out as much as he can. Then a mask (Portable Inspiratory Flow Meter) will be placed over the nose and mouth and the patient will inspire forcefully through the nose while the lips remain tightly closed. The highest PNIF (L/minute) out of 3 measurements will be recorded. Allergen challenge period starts 24 hrs post last dose. Number of Participants Analyzed is based on all patients with evaluable efficacy and/or biomarker data from the challenge period (Visit 15).

Mean of evening measurements of Peak Nasal Inspiratory Flow (absolute values) of symptoms over the last 12 hours during allergen challenge, collected in patient diary. The Mean is calculated over the evening of the 1st day to the morning of 8th day of the Allergen challenge period. The patient will breathe out as much as he can. Then a mask (Portable Inspiratory Flow Meter) will be placed over the nose and mouth and the patient will inspire forcefully through the nose while the lips remain tightly closed. The highest PNIF (L/minute) out of 3 measurements will be recorded. Allergen challenge period starts 24 hrs post last dose. Number of Participants Analyzed is based on all patients with evaluable efficacy and/or biomarker data from the challenge period (Visit 15).

Absolute mean value of Instantaneous Total Nasal Symptom Score (TNSS) for pre-dose symptoms on visit 2, during treatment period. Treatment period is one month, which starts at visit 2 and ends at visit 14. Each individual symptom is scored 0 to 3, which 0 = Absence of symptoms, 1 = Mild symptoms, 2 = Moderate symptoms and 3 = Severe symptoms. The scores of each individual symptom (runny nose, blocked nose and the maximum score of nasal itching or sneezing) will be added together to give a TNSS of 0 to 9. TNSS Score 0 indicates better outcome and TNSS score 9 indicate worse outcome. Number of Participants Analyzed is based on all patients with evaluable efficacy and/or biomarker data at visit 2.

Absolute mean value of Instantaneous Total Nasal Symptom Score (TNSS) for pre-dose symptoms on visit11, during treatment period. Treatment period is one month, which starts at visit 2 and ends at visit 14. Each individual symptom is scored 0 to 3, which 0 = Absence of symptoms, 1 = Mild symptoms, 2 = Moderate symptoms and 3 = Severe symptoms. The scores of each individual symptom (runny nose, blocked nose and the maximum score of nasal itching or sneezing) will be added together to give a TNSS of 0 to 9. TNSS Score 0 indicates better outcome and TNSS score 9 indicates worse outcome. Number of Participants Analyzed is based on all patients with evaluable efficacy and/or biomarker data at visit 11.

Absolute mean value of Peak Nasal Inspiratory Flow (PNIF) for pre-dose symptoms on visit 2, during treatment period. Treatment period is one month, which starts at visit 2 and ends at visit 14. The patient will breathe out as much as he can. Then a mask (Portable Inspiratory Flow Meter) will be placed over the nose and mouth and the patient will inspire forcefully through the nose while the lips remain tightly closed. The highest PNIF (L/minute) out of 3 measurements will be recorded. Number of Participants Analyzed is based on all patients with evaluable efficacy and/or biomarker data at visit 2.

Absolute mean value of Peak Nasal Inspiratory Flow (PNIF) for pre-dose symptoms on visit 11, during treatment period. Treatment period is one month, which starts at visit 2 and ends at visit 14. The patient will breathe out as much as he can. Then a mask (Portable Inspiratory Flow Meter) will be placed over the nose and mouth and the patient will inspire forcefully through the nose while the lips remain tightly closed. The highest PNIF (L/minute) out of 3 measurements will be recorded. Number of Participants Analyzed is based on all patients with evaluable efficacy and/or biomarker data at visit 11.

Change from baseline to 24 hours after last dose (day1 visit 15) of C-X-C motif chemokine 10 (CXCL10) in plasma, expressed as a ratio. The ratio is calculated as day1 of visit 15 / baseline. Number of Participants Analyzed is based on all patients with evaluable biomarker data at visit 2 and visit15.

Change from baseline to 24 hours after last dose (day1 visit 15) of C-X-C motif chemokine 10 (CXCL10) in nasal lavage, expressed as a ratio. The ratio is calculated as day1 of visit 15 / baseline. Number of Participants Analyzed is based on all patients with evaluable biomarker data at visit 2 and visit 15.