TNSS evaluated participant nasal symptoms of discharge (rhinorrhea), stuffiness, sneezing, and itching, as rated in their diary in the morning (AM) and evening (PM). The 4 individual symptom scores rated as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. TNSS was the sum of the 4 individual symptom scores (range= 0-12, higher score indicating more frequent/severe nasal symptoms). For the 15 day interval, participant individual daily scores were totaled and averaged over interval (AM and PM computed separately then averaged) and used to calculate the overall average change from Baseline. Participant average changes were then used to calculate the mean change for each arm for the interval. Average change from Baseline for Days 1-15 = average post-treatment score (Days 1-15) - Baseline average score (average of the Baseline AM/PM diary scores from 3 consecutive days prior to Baseline visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available diary data.

TNSS evaluated participant nasal symptoms of discharge (rhinorrhea), stuffiness, sneezing, and itching. The 4 individual symptom scores were rated by the physician at the visit as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. TNSS was the sum of the 4 individual symptom scores (range= 0-12, higher score indicating more frequent/severe nasal symptoms). For each participant, individual scores were totaled and used to calculate the change from Baseline in TNSS at the visit. Participant changes were then used to calculate the mean change for each treatment group at that visit. Change from Baseline = visit score - Baseline score (Day 1 visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 4 visit data for TNSS.

An AE was defined as any untoward medical occurrence in a participant administered a pharmaceutical product and which did not necessarily have to have a causal relationship with this treatment. An AE could therefore be any unfavourable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol-specified procedure. Any worsening of a pre-existing condition that was temporally associated with the use of the Sponsor's product was also an AE. The number of participants with at least one AE was reported for each treatment group.

All randomized participants who received at least one dose of study medication and had at least one post-Baseline evaluation were analyzed for safety.

An AE was defined as any untoward medical occurrence in a participant administered a pharmaceutical product and which did not necessarily have to have a causal relationship with this treatment. An AE could therefore be any unfavourable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol-specified procedure. Any worsening of a pre-existing condition that was temporally associated with the use of the Sponsor's product was also an AE. The number of participants who discontinued due to an AE was reported for each treatment group.

All randomized participants who received at least one dose of study medication and had at least one post-Baseline evaluation were analyzed for safety.

TNSS evaluated participant nasal symptoms of discharge (rhinorrhea), stuffiness, sneezing, and itching. The 4 individual symptom scores were rated by the physician at the visit as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. TNSS was the sum of the 4 individual symptom scores (range= 0-12, higher score indicating more frequent/severe nasal symptoms). For each participant, individual scores were totaled and used to calculate the change from Baseline in TNSS at the visit. Participant changes were then used to calculate the mean change for each treatment group at that visit. Change from Baseline = visit score - Baseline score (Day 1 visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 8 visit data for TNSS.

TNSS evaluated participant nasal symptoms of discharge (rhinorrhea), stuffiness, sneezing, and itching. The 4 individual symptom scores were rated by the physician at the visit as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. TNSS was the sum of the 4 individual symptom scores (range= 0-12, higher score indicating more frequent/severe nasal symptoms). For each participant, individual scores were totaled and used to calculate the change from Baseline in TNSS at the visit. Participant changes were then used to calculate the mean change for each treatment group at that visit. Change from Baseline = visit score - Baseline score (Day 1 visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 15 visit data for TNSS.

TNSS evaluated participant nasal symptoms of discharge (rhinorrhea), stuffiness, sneezing, and itching. The 4 individual symptom scores were rated by the physician at the visit as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. TNSS was the sum of the 4 individual symptom scores (range= 0-12, higher score indicating more frequent/severe nasal symptoms). For each participant, individual scores were totaled and used to calculate the change from Baseline in TNSS at the visit. Participant changes were then used to calculate the mean change for each treatment group at that visit. Change from Baseline = visit score - Baseline score (Day 1 visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 22 visit data for TNSS.

TNSS evaluated participant nasal symptoms of discharge (rhinorrhea), stuffiness, sneezing, and itching. The 4 individual symptom scores were rated by the physician at the visit as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. TNSS was the sum of the 4 individual symptom scores (range= 0-12, higher score indicating more frequent/severe nasal symptoms). For each participant, individual scores were totaled and used to calculate the change from Baseline in TNSS at the visit. Participant changes were then used to calculate the mean change for each treatment group at that visit. Change from Baseline = visit score - Baseline score (Day 1 visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 29 visit data for TNSS.

Overall condition of seasonal allergic rhinitis was evaluated by the physician during the visit and scored on a scale from 0 to 3 as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. A higher score indicated more frequent/severe nasal symptoms. Change from Baseline = visit score - Baseline score (Day 1 visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 4 visit data for SAR overall condition (physician-evaluated).

Overall condition of seasonal allergic rhinitis was evaluated by the physician during the visit and scored on a scale from 0 to 3 as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. A higher score indicated more frequent/severe nasal symptoms. Change from Baseline = visit score - Baseline score (Day 1 visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 8 visit data for SAR overall condition (physician-evaluated).

Overall condition of seasonal allergic rhinitis was evaluated by the physician during the visit and scored on a scale from 0 to 3 as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. A higher score indicated more frequent/severe nasal symptoms. Change from Baseline = visit score - Baseline score (Day 1 visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 15 visit data for SAR overall condition (physician-evaluated).

Overall condition of seasonal allergic rhinitis was evaluated by the physician during the visit and scored on a scale from 0 to 3 as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. A higher score indicated more frequent/severe nasal symptoms. Change from Baseline = visit score - Baseline score (Day 1 visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 22 visit data for SAR overall condition (physician-evaluated).

Overall condition of seasonal allergic rhinitis was evaluated by the physician during the visit and scored on a scale from 0 to 3 as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. A higher score indicated more frequent/severe nasal symptoms. Change from Baseline = visit score - Baseline score (Day 1 visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 29 visit data for SAR overall condition (physician-evaluated).

Overall condition of seasonal allergic rhinitis was evaluated by the participant during the visit and scored on a scale from 0 to 3 as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. A higher score indicated more frequent/severe nasal symptoms. Change from Baseline = visit score - Baseline score (Day 1 visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 4 visit data for SAR overall condition (participant-evaluated).

Overall condition of seasonal allergic rhinitis was evaluated by the participant during the visit and scored on a scale from 0 to 3 as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. A higher score indicated more frequent/severe nasal symptoms. Change from Baseline = visit score - Baseline score (Day 1 visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 8 visit data for SAR overall condition (participant-evaluated).

Overall condition of seasonal allergic rhinitis was evaluated by the participant during the visit and scored on a scale from 0 to 3 as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. A higher score indicated more frequent/severe nasal symptoms. Change from Baseline = visit score - Baseline score (Day 1 visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 15 visit data for SAR overall condition (participant-evaluated).

Overall condition of seasonal allergic rhinitis was evaluated by the participant during the visit and scored on a scale from 0 to 3 as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. A higher score indicated more frequent/severe nasal symptoms. Change from Baseline = visit score - Baseline score (Day 1 visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 22 visit data for SAR overall condition (participant-evaluated).

Overall condition of seasonal allergic rhinitis was evaluated by the participant during the visit and scored on a scale from 0 to 3 as follows: 0 = none, 1 = mild, 2 = moderate, 3 = severe. A higher score indicated more frequent/severe nasal symptoms. Change from Baseline = visit score - Baseline score (Day 1 visit). Negative changes from baseline indicate a decrease in symptom severity.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 29 visit data for SAR overall condition (participant-evaluated).

Response to therapy was evaluated by the physician and based upon the participant's status scored relative to Baseline. Response was scored on a scale from 1 to 5 as follows: 1 = Complete Relief, 2 = Marked Relief, 3 = Moderate Relief, 4= Slight Relief, and 5 = Treatment Failure. A higher score indicated a weaker response.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 4 visit data for response (physician-evaluated).

Response to therapy was evaluated by the physician and based upon the participant's status scored relative to Baseline. Response was scored on a scale from 1 to 5 as follows: 1 = Complete Relief, 2 = Marked Relief, 3 = Moderate Relief, 4= Slight Relief, and 5 = Treatment Failure. A higher score indicated a weaker response.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 8 visit data for response (physician-evaluated).

Response to therapy was evaluated by the physician and based upon the participant's status scored relative to Baseline. Response was scored on a scale from 1 to 5 as follows: 1 = Complete Relief, 2 = Marked Relief, 3 = Moderate Relief, 4= Slight Relief, and 5 = Treatment Failure. A higher score indicated a weaker response.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 15 visit data for response (physician-evaluated).

Response to therapy was evaluated by the physician and based upon the participant's status scored relative to Baseline. Response was scored on a scale from 1 to 5 as follows: 1 = Complete Relief, 2 = Marked Relief, 3 = Moderate Relief, 4= Slight Relief, and 5 = Treatment Failure. A higher score indicated a weaker response.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 22 visit data for response (physician-evaluated).

Response to therapy was evaluated by the physician and based upon the participant's status scored relative to Baseline. Response was scored on a scale from 1 to 5 as follows: 1 = Complete Relief, 2 = Marked Relief, 3 = Moderate Relief, 4= Slight Relief, and 5 = Treatment Failure. A higher score indicated a weaker response.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 29 visit data for response (physician-evaluated).

Response to therapy was evaluated by the participant and based upon their status scored relative to Baseline. Response was scored on a scale from 1 to 5 as follows: 1 = Complete Relief, 2 = Marked Relief, 3 = Moderate Relief, 4= Slight Relief, and 5 = Treatment Failure. A higher score indicated a weaker response.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 4 visit data for response (participant-evaluated).

Response to therapy was evaluated by the participant and based upon their status scored relative to Baseline. Response was scored on a scale from 1 to 5 as follows: 1 = Complete Relief, 2 = Marked Relief, 3 = Moderate Relief, 4= Slight Relief, and 5 = Treatment Failure. A higher score indicated a weaker response.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 8 visit data for response (participant-evaluated).

Response to therapy was evaluated by the participant and based upon their status scored relative to Baseline. Response was scored on a scale from 1 to 5 as follows: 1 = Complete Relief, 2 = Marked Relief, 3 = Moderate Relief, 4= Slight Relief, and 5 = Treatment Failure. A higher score indicated a weaker response.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 15 visit data for response (participant-evaluated).

Response to therapy was evaluated by the participant and based upon their status scored relative to Baseline. Response was scored on a scale from 1 to 5 as follows: 1 = Complete Relief, 2 = Marked Relief, 3 = Moderate Relief, 4= Slight Relief, and 5 = Treatment Failure. A higher score indicated a weaker response.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 22 visit data for response (participant-evaluated).

Response to therapy was evaluated by the participant and based upon their status scored relative to Baseline. Response was scored on a scale from 1 to 5 as follows: 1 = Complete Relief, 2 = Marked Relief, 3 = Moderate Relief, 4= Slight Relief, and 5 = Treatment Failure. A higher score indicated a weaker response.

All randomized participants who met eligibility criteria and evaluability criteria, completed at least one valid post-Baseline visit, and had available Day 29 visit data for response (participant-evaluated).