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Efficacy and Safety Study of Desloratadine (MK-4117) in Japanese Participants With Seasonal Allergic Rhinitis (MK-4117-204)

A Phase III, Multi-Center, Randomized, Placebo-Controlled, Double-Blind Trial to Study the Efficacy and Safety of MK-4117 in Japanese Subjects With Seasonal Allergic Rhinitis

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02320396
Enrollment
449
Registered
2014-12-19
Start date
2015-01-09
Completion date
2015-04-27
Last updated
2024-05-17

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

Conditions

Seasonal Allergic Rhinitis

Brief summary

This is an efficacy and safety study of desloratadine (MK-4117) in Japanese participants with seasonal allergic rhinitis (SAR). The primary hypothesis of this study is that the change from Baseline in Total Nasal Symptom Score (TNSS) is improved by desloratadine compared to placebo.

Detailed description

This study consists of a one-week Symptom Confirmation Period during which participants undergo a single-blinded placebo run-in, a two-week double-blind Treatment Period and a two-week Follow-up Period.

Interventions

Desloratadine 5 mg tablets

DRUGPlacebo

Placebo tablets

Sponsors

Organon and Co
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
16 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Has at least a 2-year history of seasonal allergic rhinitis with typical symptoms * Male or female who is unlikely to conceive: a surgically sterilized female, female who has reached natural menopause, or is of reproductive potential and agrees to either remain abstinent or use (or have her partner use) 2 acceptable methods of birth control from study start through 14 days after the last dose of study drug.

Exclusion criteria

* Has a lower respiratory tract infection or has a nasopharyngolaryngeal infection (acute upper respiratory tract infection, acute pharyngolaryngitis, or acute tonsillitis, etc.) requiring treatment * Has a coexisting infection or systemic mycosis for which there are no effective antibiotics * Has asthma that is under treatment and/or uncontrolled * Has nasal septum ulcers, nasal surgery, or nasal trauma which have not healed * Has vasomotor rhinitis or eosinophilic rhinitis * Has a history of hypersensitivity to antihistamines or ingredients of study drug * Has had treatment with corticosteroids (oral, injectable, suppository, depot drugs \[injectable\]) or immunological drugs within 28 days prior to Visit 2 * Is currently receiving treatment with another investigational drug or has received an investigational drug within prior 3 months * Has started specific desensitization therapy (allergen immunotherapy) or nonspecific allassotherapy (Histaglobin, vaccine therapy, etc.) or who has received such therapies within prior 3 months * Has received coagulation or resection using laser therapy etc. for treatment for nasal symptoms * Will receive nasal nebulizer therapy and/or thermotherapy during study period * Has severe hepatic, renal, cardiac, hematological disease, or other serious coexisting diseases and whose general condition is poor * Has a history of malignancy or clinically important hematological disorder, except for adequately treated non-melanomatous skin carcinoma or carcinoma in situ of the cervix * Has a history of severe drug allergy (e.g. anaphylactoid reaction) * Is pregnant or lactating or may be pregnant * Is planning a remote trip for more than 1 day during the Symptom Confirmation Period or for more than 2 days during the Treatment Period.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Total Nasal Symptom Score (TNSS) During 2 Weeks of TherapyBaseline, Day 1 to Day 13 (Weeks 1 through 2 average) of double-blind treatmentThe TNSS was used to evaluate participant nasal symptoms of: sneezing (daily frequency of attacks scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), rhinorrhea (daily frequency of blowing nose scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), nasal congestion (scored from 0 \[no nasal blockage\] to 4 \[completely obstructed all day\]), and nasal itching (scored from 0 \[none\] to 4 \[nose is itchy, requiring frequent rubbing or blowing nose) as rated in the participant's diary. The TNSS was the sum of the 4 nasal symptom sub-scores. TNSS scores ranged from 0 to 16, with a higher score indicating more frequent/severe nasal symptoms. Baseline (BL) measurement was an average of scores for 3 days prior to treatment (during Confirmation of Symptom Period). Post-BL measurement was an average from Day 1 to Day 13 (2 week average). Change from BL = Post BL measurement - BL measurement.
Number of Participants Who Experience at Least One Adverse Event (AE)Up to 4 weeks (Up to 2 weeks after last dose of study drug)An AE was defined as any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE could therefore be any unfavourable and unintended sign (including an abnormal laboratory finding, for example), 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 (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition that was temporally associated with the use of the Sponsor's product, was also an AE.
Number of Participants Who Discontinue Study Drug Due to an AEUp to 2 weeksAn AE was defined as any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE could therefore be any unfavourable and unintended sign (including an abnormal laboratory finding, for example), 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 (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition that was temporally associated with the use of the Sponsor's product, was also an AE.

Secondary

MeasureTime frameDescription
Change From Baseline in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching) During 2 Weeks of TherapyBaseline, Day 1 to Day 13 (Weeks 1 through 2 average)Nasal symptoms sub-scores rated in the participant's diary included sneezing (daily frequency of attacks scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), rhinorrhea (daily frequency of blowing nose scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), nasal congestion (scored from 0 \[no nasal blockage\] to 4 \[completely obstructed all day\]), and nasal itching (scored from 0 \[none\] to 4 \[nose is itchy, requiring frequent rubbing or blowing nose). Nasal symptom sub-scores ranged from 0 to 4, with a higher score indicating more frequent/severe nasal symptoms. BL measurement was an average of scores for 3 days prior to treatment (during Confirmation of Symptom Period). Post-BL measurement for 2 week Average was an average of scores from Day 1 to Day 13. Change from BL = Post BL measurement - BL measurement.
Change From Baseline to Week 1 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)Baseline, Day 1 to 7 (Week 1 average) of double-blind treatmentEye symptoms rated in the participant's diary included eye pruritis (eye itching scored from 0 \[none\] to 4 \[severe eye itching, requiring frequent rubbing of eye\]) and watering eyes (scored from 0 \[none\] to 4 \[severe eye watering requiring frequent wiping of eyes\]). Eye symptom scores ranged from 0 to 4, with a higher score indicating greater severity of symptom. The change from baseline in eye pruritis, eye watering, and the worse one of either eye symptom were reported. Baseline measurement was an average of scores for 3 days prior to treatment. Post-baseline measurement for Week 1 was an average of scores from Day 1 to Day 7. Change from BL = Post BL measurement - BL measurement.
Change From Baseline to Week 2 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)Baseline, Day 8 to 13 (Week 2) of double-blind treatmentEye symptoms rated in the participant's diary included eye pruritis (eye itching scored from 0 \[none\] to 4 \[severe eye itching, requiring frequent rubbing of eye\]) and watering eyes (scored from 0 \[none\] to 4 \[severe eye watering requiring frequent wiping of eyes\]). Eye symptom scores ranged from 0 to 4, with a higher score indicating greater severity of symptom. The change from baseline in eye pruritis, eye watering, and the worse one of either eye symptom were reported. Baseline measurement was an average of scores for 3 days prior to treatment. Post-BL measurement for Week 2 was an average of scores from Day 8 to Day 13. Change from BL = Post BL measurement - BL measurement.
Change From Baseline in TNSS for Week 1 and Week 2 of Double-blind TreatmentBaseline, Day 1 to 7 (Week 1 average), Day 8 to 13 (Week 2 average) of double-blind treatmentThe TNSS was used to evaluate participant nasal symptoms of: sneezing (daily frequency of attacks scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), rhinorrhea (daily frequency of blowing nose scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), nasal congestion (scored from 0 \[no nasal blockage\] to 4 \[completely obstructed all day\]), and nasal itching (scored from 0 \[none\] to 4 \[nose is itchy, requiring frequent rubbing or blowing nose) as rated in the participant's diary. The TNSS was the sum of the 4 nasal symptom sub-scores. TNSS scores ranged from 0 to 16, with a higher score indicating more frequent/severe nasal symptoms. Baseline (BL) measurement was an average of scores for 3 days prior to treatment (during Confirmation of Symptom Period). Post-BL measurement for Week 1 was an average from Day 1 to Day 7 and post-BL measurement for Week 2 was an average from Day 8 to Day 13. Change from BL = Post BL measurement - BL measurement.
Change From Baseline in Interference With Daily Activities Score at Week 1, Week 2, and During 2 Weeks of TherapyBaseline, Day 1 to 7 (Week 1 average), Day 8 to 13 (Week 2 average), Day 1 to Day 13 (Weeks 1 through 2 average) of double-blind treatmentInterference of allergic rhinitis symptoms with overall daily activities (such as work, study, housekeeping, sleep, or outing) was rated by the participant according to the following scale: 0=none, 1= symptoms cause few troubles, 2=symptoms cause intermediate problems between 1 and 3, 3=nasal symptoms cause painful and complicating daily life, or 4 = symptoms make daily activities impossible. Interference with daily activities scores ranged from 0 to 4 maximum, with a higher score indicating greater interference with daily activities. Baseline measurement was an average of scores for 3 days prior to treatment. Post-baseline measurement for Week 1 was an average of scores from Day 1 to Day 7. Post-BL measurement for Week 2 was an average of scores from Day 8 to Day 13. Post-BL measurement for 2 week Average was an average of scores from Day 1 to Day 13. Change from BL = Post BL measurement - BL measurement.
Percentage of Participants With Impression Assessments of Better or Much Better as Assessed by the Investigator at Week 2From Baseline to Week 2The investigator assessed the participant's symptoms of allergic rhinitis and nasal findings at the end of the study (2 week visit or discontinuation visit) compared with those at the start of the study period (based on their recollection/memory of the participant's symptoms, no formal baseline assessment) and evaluated their impression of study drug on effect according to 6 grades: Much better, Better, Slightly better, Unchanged, Worse, or Unevaluable. The evaluation result and reason for judgment (if needed) was recorded in the participant's case report form. The investigator's impression was evaluated based on the symptoms for allergic rhinitis, nasal findings and participant's own impression at Week 2. The percentage of participants with assessments of Better and Much better graded by the investigator (Investigator's Impression Rate) was reported and analyzed using Odds Ratio analysis.
Percentage of Participants With Impression Assessments of Better or Much Better as Assessed Participants at Week 2From Baseline to Week 2The participant evaluated their symptoms of allergic rhinitis at the end of the study (2 week visit or discontinuation visit) compared with those at the start of the study period (based on their recollection/memory of their symptoms, no formal baseline assessment) and recorded in their Subject Allergy Diary their impression of study drug on effect according to 6 grades: Much better, Better, Slightly better, Unchanged, Worse, or Unevaluable. The percentage of participants with assessments of Better and Much better graded by the participant (Participant's Impression Rate) was reported and analyzed using Odds Ratio analysis.
Change From Baseline in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes) During 2 Weeks of TherapyBaseline, Day 1 to Day 13 (Weeks 1 through 2 average)Eye symptoms rated in the participant's diary included eye pruritis (eye itching scored from 0 \[none\] to 4 \[severe eye itching, requiring frequent rubbing of eye\]) and watering eyes (scored from 0 \[none\] to 4 \[severe eye watering requiring frequent wiping of eyes\]). Eye symptom scores ranged from 0 to 4, with a higher score indicating greater severity of symptom. The change from baseline in eye pruritis, eye watering, and the worse one of either eye symptom were reported. BL measurement was an average of scores for 3 days prior to treatment. Post-BL measurement for 2 week Average was an average of scores from Day 1 to Day 13. Change from BL = Post BL measurement - BL measurement.
Change From Baseline to Week 1 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Baseline, Day 1 to 7 (Week 1 average) of double-blind treatmentNasal symptoms sub-scores rated in the participant's diary included sneezing (daily frequency of attacks scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), rhinorrhea (daily frequency of blowing nose scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), nasal congestion (scored from 0 \[no nasal blockage\] to 4 \[completely obstructed all day\]), and nasal itching (scored from 0 \[none\] to 4 \[nose is itchy, requiring frequent rubbing or blowing nose). Nasal symptom sub-scores ranged from 0 to 4, with a higher score indicating more frequent/severe nasal symptoms. BL measurement was an average of scores for 3 days prior to treatment (during Confirmation of Symptom Period). Post-BL measurement for Week 1 was an average of scores from Day 1 to Day 7. Change from BL = Post BL measurement - BL measurement.
Change From Baseline to Week 2 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Baseline, Day 8 to 13 (Week 2 average) of double-blind treatmentNasal symptoms sub-scores rated in the participant's diary included sneezing (daily frequency of attacks scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), rhinorrhea (daily frequency of blowing nose scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), nasal congestion (scored from 0 \[no nasal blockage\] to 4 \[completely obstructed all day\]), and nasal itching (scored from 0 \[none\] to 4 \[nose is itchy, requiring frequent rubbing or blowing nose). Nasal symptom sub-scores ranged from 0 to 4, with a higher score indicating more frequent/severe nasal symptoms. BL measurement was an average of scores for 3 days prior to treatment (during Confirmation of Symptom Period). Post-BL measurement for Week 2 was an average of scores from Day 8 to Day 13. Change from BL = Post BL measurement - BL measurement.

Participant flow

Recruitment details

Participants with seasonal allergic rhinitis (SAR) were recruited at 3 study sites in Japan.

Pre-assignment details

Of 1148 participants screened, 449 were enrolled in the study and randomized to oral (PO) once daily (QD) Desloratadine (n=224) or Placebo (n=225). One participant randomized to Desloratadine was not treated due to withdrawn consent.

Participants by arm

ArmCount
Desloratadine
After a 1-week single-blinded placebo run-in during which SAR symptoms are confirmed (Confirmation of Symptom Period), participants receive double-blinded desloratadine (one 5 mg tablet) PO QD in the morning for 2 weeks during the Treatment Period.
224
Placebo
After a 1-week single-blinded placebo run-in during which SAR symptoms are confirmed (Confirmation of Symptom Period), participants receive double-blinded placebo (one tablet) PO QD in the morning for 2 weeks during the Treatment Period.
225
Total449

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event22
Overall StudyPregnancy01
Overall StudyProtocol Violation01
Overall StudyWithdrawal by Subject20

Baseline characteristics

CharacteristicDesloratadinePlaceboTotal
Age, Continuous40.0 years
STANDARD_DEVIATION 10.9
39.8 years
STANDARD_DEVIATION 10.9
39.9 years
STANDARD_DEVIATION 10.9
Sex: Female, Male
Female
130 Participants131 Participants261 Participants
Sex: Female, Male
Male
94 Participants94 Participants188 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 2230 / 225
serious
Total, serious adverse events
1 / 2230 / 225

Outcome results

Primary

Change From Baseline in Total Nasal Symptom Score (TNSS) During 2 Weeks of Therapy

The TNSS was used to evaluate participant nasal symptoms of: sneezing (daily frequency of attacks scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), rhinorrhea (daily frequency of blowing nose scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), nasal congestion (scored from 0 \[no nasal blockage\] to 4 \[completely obstructed all day\]), and nasal itching (scored from 0 \[none\] to 4 \[nose is itchy, requiring frequent rubbing or blowing nose) as rated in the participant's diary. The TNSS was the sum of the 4 nasal symptom sub-scores. TNSS scores ranged from 0 to 16, with a higher score indicating more frequent/severe nasal symptoms. Baseline (BL) measurement was an average of scores for 3 days prior to treatment (during Confirmation of Symptom Period). Post-BL measurement was an average from Day 1 to Day 13 (2 week average). Change from BL = Post BL measurement - BL measurement.

Time frame: Baseline, Day 1 to Day 13 (Weeks 1 through 2 average) of double-blind treatment

Population: The Full Analysis Set (FAS); all randomized participants who took ≥1 dose of study treatment, and have a BL (average of score for 3 days prior to treatment) observation or one post BL observation (average score of 2 weeks).

ArmMeasureValue (LEAST_SQUARES_MEAN)
DesloratadineChange From Baseline in Total Nasal Symptom Score (TNSS) During 2 Weeks of Therapy-1.41 units on a scale
PlaceboChange From Baseline in Total Nasal Symptom Score (TNSS) During 2 Weeks of Therapy-0.59 units on a scale
Comparison: The LS mean change from BL to post BL (average score of 2 weeks) in TNSS was estimated using a constrained longitudinal data analysis (cLDA) model, where both BL and post-BL measurements (average score of 2 weeks) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-1.14, -0.51]cLDA model
Primary

Number of Participants Who Discontinue Study Drug Due to an AE

An AE was defined as any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE could therefore be any unfavourable and unintended sign (including an abnormal laboratory finding, for example), 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 (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition that was temporally associated with the use of the Sponsor's product, was also an AE.

Time frame: Up to 2 weeks

Population: APaT; all participants who received ≥1 dose of study treatment.

ArmMeasureValue (NUMBER)
DesloratadineNumber of Participants Who Discontinue Study Drug Due to an AE2 participants
PlaceboNumber of Participants Who Discontinue Study Drug Due to an AE2 participants
Primary

Number of Participants Who Experience at Least One Adverse Event (AE)

An AE was defined as any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An AE could therefore be any unfavourable and unintended sign (including an abnormal laboratory finding, for example), 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 (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition that was temporally associated with the use of the Sponsor's product, was also an AE.

Time frame: Up to 4 weeks (Up to 2 weeks after last dose of study drug)

Population: All Participants as Treated (APaT); all participants who received ≥1 dose of study treatment.

ArmMeasureValue (NUMBER)
DesloratadineNumber of Participants Who Experience at Least One Adverse Event (AE)19 participants
PlaceboNumber of Participants Who Experience at Least One Adverse Event (AE)13 participants
Secondary

Change From Baseline in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching) During 2 Weeks of Therapy

Nasal symptoms sub-scores rated in the participant's diary included sneezing (daily frequency of attacks scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), rhinorrhea (daily frequency of blowing nose scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), nasal congestion (scored from 0 \[no nasal blockage\] to 4 \[completely obstructed all day\]), and nasal itching (scored from 0 \[none\] to 4 \[nose is itchy, requiring frequent rubbing or blowing nose). Nasal symptom sub-scores ranged from 0 to 4, with a higher score indicating more frequent/severe nasal symptoms. BL measurement was an average of scores for 3 days prior to treatment (during Confirmation of Symptom Period). Post-BL measurement for 2 week Average was an average of scores from Day 1 to Day 13. Change from BL = Post BL measurement - BL measurement.

Time frame: Baseline, Day 1 to Day 13 (Weeks 1 through 2 average)

Population: The FAS; all randomized participants who took ≥1 dose of study treatment, and have a BL (average of score for 3 days prior to treatment) observation or one post BL observation.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
DesloratadineChange From Baseline in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching) During 2 Weeks of TherapySneezing-0.44 units on a scale
DesloratadineChange From Baseline in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching) During 2 Weeks of TherapyRhinorrhea-0.41 units on a scale
DesloratadineChange From Baseline in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching) During 2 Weeks of TherapyNasal Congestion-0.02 units on a scale
DesloratadineChange From Baseline in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching) During 2 Weeks of TherapyNasal Itching-0.54 units on a scale
PlaceboChange From Baseline in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching) During 2 Weeks of TherapyNasal Itching-0.27 units on a scale
PlaceboChange From Baseline in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching) During 2 Weeks of TherapySneezing-0.20 units on a scale
PlaceboChange From Baseline in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching) During 2 Weeks of TherapyNasal Congestion0.07 units on a scale
PlaceboChange From Baseline in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching) During 2 Weeks of TherapyRhinorrhea-0.18 units on a scale
Comparison: Change from BL in Sneezing During 2 Weeks: Desloratadine vs. Placebo~The LS mean change from BL to post BL (average score of 2 weeks) in Sneezing was estimated using a cLDA model, where both BL and post-BL measurements (average score from Day 1 to Day 13) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.35, -0.14]cLDA model
Comparison: Change from BL in Rhinorrhea During 2 Weeks: Desloratadine vs. Placebo~The LS mean change from BL to post BL (average score of 2 weeks) in Rhinorrhea was estimated using a cLDA model, where both BL and post-BL measurements (average score from Day 1 to Day 13) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.33, -0.12]cLDA model
Comparison: Change from BL in Nasal Congestion During 2 Weeks: Desloratadine vs. Placebo~The LS mean change from BL to post BL (average score of 2 weeks) in Nasal Congestion was estimated using a cLDA model, where both BL and post-BL measurements (average score from Day 1 to Day 13) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: 0.00995% CI: [-0.16, -0.02]cLDA model
Comparison: Change from BL in Nasal Itching During 2 Weeks: Desloratadine vs. Placebo~The LS mean change from BL to post BL (average score of 2 weeks) in Nasal Itching was estimated using a cLDA model, where both BL and post-BL measurements (average score from Day 1 to Day 13) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.~cLDA modelp-value: <0.00195% CI: [-0.38, -0.15]cLDA model
Secondary

Change From Baseline in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes) During 2 Weeks of Therapy

Eye symptoms rated in the participant's diary included eye pruritis (eye itching scored from 0 \[none\] to 4 \[severe eye itching, requiring frequent rubbing of eye\]) and watering eyes (scored from 0 \[none\] to 4 \[severe eye watering requiring frequent wiping of eyes\]). Eye symptom scores ranged from 0 to 4, with a higher score indicating greater severity of symptom. The change from baseline in eye pruritis, eye watering, and the worse one of either eye symptom were reported. BL measurement was an average of scores for 3 days prior to treatment. Post-BL measurement for 2 week Average was an average of scores from Day 1 to Day 13. Change from BL = Post BL measurement - BL measurement.

Time frame: Baseline, Day 1 to Day 13 (Weeks 1 through 2 average)

Population: The FAS; all randomized participants who took ≥1 dose of study treatment, and have a BL (average of score for 3 days prior to treatment) observation or one post BL observation.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
DesloratadineChange From Baseline in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes) During 2 Weeks of TherapyEye Pruritus-0.44 units on a scale
DesloratadineChange From Baseline in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes) During 2 Weeks of TherapyWatering Eyes-0.21 units on a scale
DesloratadineChange From Baseline in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes) During 2 Weeks of TherapyWorse of Pruritus or Watering Eyes-0.44 units on a scale
PlaceboChange From Baseline in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes) During 2 Weeks of TherapyEye Pruritus-0.19 units on a scale
PlaceboChange From Baseline in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes) During 2 Weeks of TherapyWatering Eyes-0.07 units on a scale
PlaceboChange From Baseline in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes) During 2 Weeks of TherapyWorse of Pruritus or Watering Eyes-0.19 units on a scale
Comparison: Change from BL in Eye Pruritus During 2 Weeks: Desloratadine vs. Placebo~The LS mean change from BL to post BL (average score of 2 weeks) in Eye Pruritus was estimated using a cLDA model, where both BL and post-BL measurements (average score from Day 1 to Day 13) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.35, -0.14]cLDA model
Comparison: Change from BL in Watering Eyes During 2 Weeks: Desloratadine vs. Placebo~The LS mean change from BL to post BL (average score of 2 weeks) in Watering Eyes was estimated using a cLDA model, where both BL and post-BL measurements (average score from Day 1 to Day 13) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.23, -0.07]cLDA model
Comparison: The LS mean change from BL to post BL (average score of 2 weeks) in the worse of Pruritus or Watering Eyes was estimated using a cLDA model, where both BL and post-BL measurements (average score from Day 1-Day 13) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-valuep-value: <0.00195% CI: [-0.35, -0.15]cLDA model
Secondary

Change From Baseline in Interference With Daily Activities Score at Week 1, Week 2, and During 2 Weeks of Therapy

Interference of allergic rhinitis symptoms with overall daily activities (such as work, study, housekeeping, sleep, or outing) was rated by the participant according to the following scale: 0=none, 1= symptoms cause few troubles, 2=symptoms cause intermediate problems between 1 and 3, 3=nasal symptoms cause painful and complicating daily life, or 4 = symptoms make daily activities impossible. Interference with daily activities scores ranged from 0 to 4 maximum, with a higher score indicating greater interference with daily activities. Baseline measurement was an average of scores for 3 days prior to treatment. Post-baseline measurement for Week 1 was an average of scores from Day 1 to Day 7. Post-BL measurement for Week 2 was an average of scores from Day 8 to Day 13. Post-BL measurement for 2 week Average was an average of scores from Day 1 to Day 13. Change from BL = Post BL measurement - BL measurement.

Time frame: Baseline, Day 1 to 7 (Week 1 average), Day 8 to 13 (Week 2 average), Day 1 to Day 13 (Weeks 1 through 2 average) of double-blind treatment

Population: The FAS; all randomized participants who took ≥1 dose of study treatment, and have a BL (average of score for 3 days prior to treatment) observation or one post BL observation.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
DesloratadineChange From Baseline in Interference With Daily Activities Score at Week 1, Week 2, and During 2 Weeks of TherapyWeek 1-0.23 units on a scale
DesloratadineChange From Baseline in Interference With Daily Activities Score at Week 1, Week 2, and During 2 Weeks of TherapyWeek 2-0.34 units on a scale
DesloratadineChange From Baseline in Interference With Daily Activities Score at Week 1, Week 2, and During 2 Weeks of Therapy2 Week Average-0.28 units on a scale
PlaceboChange From Baseline in Interference With Daily Activities Score at Week 1, Week 2, and During 2 Weeks of TherapyWeek 1-0.07 units on a scale
PlaceboChange From Baseline in Interference With Daily Activities Score at Week 1, Week 2, and During 2 Weeks of TherapyWeek 2-0.14 units on a scale
PlaceboChange From Baseline in Interference With Daily Activities Score at Week 1, Week 2, and During 2 Weeks of Therapy2 Week Average-0.10 units on a scale
Comparison: Change from BL to Week 1 in Interference with Daily Activities: Desloratadine vs. Placebo~The LS mean change from BL to Week 1 post BL in Interference with Daily Activities was estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 1) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.24, -0.07]cLDA model
Comparison: Change from BL to Week 2 in Interference with Daily Activities: Desloratadine vs. Placebo~The LS mean change from BL to Week 2 post BL in Interference with Daily Activities was estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 2) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.3, -0.09]cLDA model
Comparison: Change from BL in Interference with Daily Activities During 2 Wks: Desloratadine vs. Placebo~The LS mean change from BL to post BL (average score of 2 weeks) in Interference with Daily Activities estimated using a cLDA model, where both BL and post-BL measurements (average score from Day 1-Day 13) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.26, -0.08]cLDA model
Secondary

Change From Baseline in TNSS for Week 1 and Week 2 of Double-blind Treatment

The TNSS was used to evaluate participant nasal symptoms of: sneezing (daily frequency of attacks scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), rhinorrhea (daily frequency of blowing nose scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), nasal congestion (scored from 0 \[no nasal blockage\] to 4 \[completely obstructed all day\]), and nasal itching (scored from 0 \[none\] to 4 \[nose is itchy, requiring frequent rubbing or blowing nose) as rated in the participant's diary. The TNSS was the sum of the 4 nasal symptom sub-scores. TNSS scores ranged from 0 to 16, with a higher score indicating more frequent/severe nasal symptoms. Baseline (BL) measurement was an average of scores for 3 days prior to treatment (during Confirmation of Symptom Period). Post-BL measurement for Week 1 was an average from Day 1 to Day 7 and post-BL measurement for Week 2 was an average from Day 8 to Day 13. Change from BL = Post BL measurement - BL measurement.

Time frame: Baseline, Day 1 to 7 (Week 1 average), Day 8 to 13 (Week 2 average) of double-blind treatment

Population: The FAS; all randomized participants who took ≥1 dose of study treatment, and have a BL (average of score for 3 days prior to treatment) observation or one post BL observation.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
DesloratadineChange From Baseline in TNSS for Week 1 and Week 2 of Double-blind TreatmentWeek 1-1.19 units on a scale
DesloratadineChange From Baseline in TNSS for Week 1 and Week 2 of Double-blind TreatmentWeek 2-1.69 units on a scale
PlaceboChange From Baseline in TNSS for Week 1 and Week 2 of Double-blind TreatmentWeek 1-0.38 units on a scale
PlaceboChange From Baseline in TNSS for Week 1 and Week 2 of Double-blind TreatmentWeek 2-0.84 units on a scale
Comparison: Change from BL in TNSS at Week 1: Desloratadine vs. Placebo~The LS mean change from BL to Week 1 post BL in TNSS was estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 1) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-1.14, -0.5]cLDA model
Comparison: Change from BL in TNSS at Week 2: Desloratadine vs. Placebo~The LS mean change from BL to Week 2 post BL in TNSS was estimated using a cLDA model, where both BL and post- BL measurements (average score of 1 week prior to Week 2) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-1.23, -0.46]cLDA model
Secondary

Change From Baseline to Week 1 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)

Nasal symptoms sub-scores rated in the participant's diary included sneezing (daily frequency of attacks scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), rhinorrhea (daily frequency of blowing nose scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), nasal congestion (scored from 0 \[no nasal blockage\] to 4 \[completely obstructed all day\]), and nasal itching (scored from 0 \[none\] to 4 \[nose is itchy, requiring frequent rubbing or blowing nose). Nasal symptom sub-scores ranged from 0 to 4, with a higher score indicating more frequent/severe nasal symptoms. BL measurement was an average of scores for 3 days prior to treatment (during Confirmation of Symptom Period). Post-BL measurement for Week 1 was an average of scores from Day 1 to Day 7. Change from BL = Post BL measurement - BL measurement.

Time frame: Baseline, Day 1 to 7 (Week 1 average) of double-blind treatment

Population: The FAS; all randomized participants who took ≥1 dose of study treatment, and have a BL (average of score for 3 days prior to treatment) observation or one post BL observation.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
DesloratadineChange From Baseline to Week 1 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Sneezing-0.39 units on a scale
DesloratadineChange From Baseline to Week 1 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Rhinorrhea-0.34 units on a scale
DesloratadineChange From Baseline to Week 1 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Nasal Congestion-0.02 units on a scale
DesloratadineChange From Baseline to Week 1 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Nasal Itching-0.45 units on a scale
PlaceboChange From Baseline to Week 1 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Nasal Itching-0.18 units on a scale
PlaceboChange From Baseline to Week 1 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Sneezing-0.14 units on a scale
PlaceboChange From Baseline to Week 1 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Nasal Congestion0.07 units on a scale
PlaceboChange From Baseline to Week 1 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Rhinorrhea-0.13 units on a scale
Comparison: Change from BL to Week 1 in Sneezing: Desloratadine vs. Placebo~The LS mean change from BL to Week 1 post BL in Sneezing was estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 1) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.35, -0.14]cLDA model
Comparison: Change from BL to Week 1 in Rhinorrhea: Desloratadine vs. Placebo~The LS mean change from BL to Week 1 post BL in Rhinorrhea was estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 1) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.32, -0.1]cLDA model
Comparison: Change from BL to Week 1 in Nasal Congestion: Desloratadine vs. Placebo~The LS mean change from BL to Week 1 post BL in Nasal Congestion was estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 1) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: 0.00895% CI: [-0.16, -0.02]cLDA model
Comparison: Change from BL to Week 1 in Nasal Itching: Desloratadine vs. Placebo~The LS mean change from BL to Week 1 post BL in Nasal Itching was estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 1) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.38, -0.15]cLDA model
Secondary

Change From Baseline to Week 1 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)

Eye symptoms rated in the participant's diary included eye pruritis (eye itching scored from 0 \[none\] to 4 \[severe eye itching, requiring frequent rubbing of eye\]) and watering eyes (scored from 0 \[none\] to 4 \[severe eye watering requiring frequent wiping of eyes\]). Eye symptom scores ranged from 0 to 4, with a higher score indicating greater severity of symptom. The change from baseline in eye pruritis, eye watering, and the worse one of either eye symptom were reported. Baseline measurement was an average of scores for 3 days prior to treatment. Post-baseline measurement for Week 1 was an average of scores from Day 1 to Day 7. Change from BL = Post BL measurement - BL measurement.

Time frame: Baseline, Day 1 to 7 (Week 1 average) of double-blind treatment

Population: The FAS; all randomized participants who took ≥1 dose of study treatment, and have a BL (average of score for 3 days prior to treatment) observation or one post BL observation.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
DesloratadineChange From Baseline to Week 1 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)Eye Pruritus-0.34 units on a scale
DesloratadineChange From Baseline to Week 1 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)Watering Eyes-0.17 units on a scale
DesloratadineChange From Baseline to Week 1 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)Worse of Pruritus or Watering Eyes-0.34 units on a scale
PlaceboChange From Baseline to Week 1 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)Eye Pruritus-0.09 units on a scale
PlaceboChange From Baseline to Week 1 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)Watering Eyes-0.02 units on a scale
PlaceboChange From Baseline to Week 1 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)Worse of Pruritus or Watering Eyes-0.09 units on a scale
Comparison: Change from BL to Week 1 in Eye Pruritus: Desloratadine vs. Placebo~The LS mean change from BL to Week 1 post BL in Eye Pruritus was estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 1) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.35, -0.15]cLDA model
Comparison: Change from BL to Week 1 in Watering Eyes: Desloratadine vs. Placebo~The LS mean change from BL to Week 1 post BL in Watering Eyes was estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 1) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.24, -0.08]cLDA model
Comparison: Change from BL to Week 1 in Worse of Pruritus or Watering Eyes: Desloratadine vs. Placebo~The LS mean change from BL to Week 1 post BL in the worse symptom of Pruritus or Watering Eyes estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 1) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.35, -0.15]cLDA model
Secondary

Change From Baseline to Week 2 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)

Nasal symptoms sub-scores rated in the participant's diary included sneezing (daily frequency of attacks scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), rhinorrhea (daily frequency of blowing nose scored from 0 \[\<1 time or none\] to 4 \[≥21 times\]), nasal congestion (scored from 0 \[no nasal blockage\] to 4 \[completely obstructed all day\]), and nasal itching (scored from 0 \[none\] to 4 \[nose is itchy, requiring frequent rubbing or blowing nose). Nasal symptom sub-scores ranged from 0 to 4, with a higher score indicating more frequent/severe nasal symptoms. BL measurement was an average of scores for 3 days prior to treatment (during Confirmation of Symptom Period). Post-BL measurement for Week 2 was an average of scores from Day 8 to Day 13. Change from BL = Post BL measurement - BL measurement.

Time frame: Baseline, Day 8 to 13 (Week 2 average) of double-blind treatment

Population: The FAS; all randomized participants who took ≥1 dose of study treatment, and have a BL (average of score for 3 days prior to treatment) observation or one post BL observation.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
DesloratadineChange From Baseline to Week 2 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Sneezing-0.51 units on a scale
DesloratadineChange From Baseline to Week 2 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Rhinorrhea-0.49 units on a scale
DesloratadineChange From Baseline to Week 2 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Nasal Congestion-0.03 units on a scale
DesloratadineChange From Baseline to Week 2 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Nasal Itching-0.65 units on a scale
PlaceboChange From Baseline to Week 2 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Nasal Itching-0.39 units on a scale
PlaceboChange From Baseline to Week 2 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Sneezing-0.27 units on a scale
PlaceboChange From Baseline to Week 2 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Nasal Congestion0.06 units on a scale
PlaceboChange From Baseline to Week 2 in Each Nasal Symptom Sub-Score (Sneezing, Rhinorrhea, Nasal Congestion and Nasal Itching)Rhinorrhea-0.24 units on a scale
Comparison: Change from BL to Week 2 in Sneezing: Desloratadine vs. Placebo~The LS mean change from BL to Week 2 post BL in Sneezing was estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 2) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.36, -0.13]cLDA model
Comparison: Change from BL to Week 2 in Rhinorrhea: Desloratadine vs. Placebo~The LS mean change from BL to Week 2 post BL in Rhinorrhea was estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 2) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.37, -0.12]cLDA model
Comparison: Change from BL to Week 2 in Nasal Congestion: Desloratadine vs. Placebo~The LS mean change from BL to Week 2 post BL in Nasal Congestion was estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 2) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: 0.03795% CI: [-0.18, -0.01]cLDA model
Comparison: Change from BL to Week 2 in Nasal Itching: Desloratadine vs. Placebo~The LS mean change from BL to Week 2 post BL in Nasal Itching was estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 2) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.4, -0.12]cLDA model
Secondary

Change From Baseline to Week 2 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)

Eye symptoms rated in the participant's diary included eye pruritis (eye itching scored from 0 \[none\] to 4 \[severe eye itching, requiring frequent rubbing of eye\]) and watering eyes (scored from 0 \[none\] to 4 \[severe eye watering requiring frequent wiping of eyes\]). Eye symptom scores ranged from 0 to 4, with a higher score indicating greater severity of symptom. The change from baseline in eye pruritis, eye watering, and the worse one of either eye symptom were reported. Baseline measurement was an average of scores for 3 days prior to treatment. Post-BL measurement for Week 2 was an average of scores from Day 8 to Day 13. Change from BL = Post BL measurement - BL measurement.

Time frame: Baseline, Day 8 to 13 (Week 2) of double-blind treatment

Population: The FAS; all randomized participants who took ≥1 dose of study treatment, and have a BL (average of score for 3 days prior to treatment) observation or one post BL observation.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
DesloratadineChange From Baseline to Week 2 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)Eye Pruritus-0.56 units on a scale
DesloratadineChange From Baseline to Week 2 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)Watering Eyes-0.26 units on a scale
DesloratadineChange From Baseline to Week 2 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)Worse of Pruritus or Watering Eyes-0.56 units on a scale
PlaceboChange From Baseline to Week 2 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)Eye Pruritus-0.32 units on a scale
PlaceboChange From Baseline to Week 2 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)Watering Eyes-0.13 units on a scale
PlaceboChange From Baseline to Week 2 in Eye Symptoms (Pruritus, Watering Eyes and the Worse One of Either Pruritus or Watering Eyes)Worse of Pruritus or Watering Eyes-0.32 units on a scale
Comparison: Change from BL to Week 2 in Eye Pruritus: Desloratadine vs. Placebo~The LS mean change from BL to Week 2 post BL in Eye Pruritus was estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 2) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.37, -0.12]cLDA model
Comparison: Change from BL to Week 2 in Watering Eyes: Desloratadine vs. Placebo~The LS mean change from BL to Week 2 post BL in Watering Eyes was estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 2) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: 0.0195% CI: [-0.24, -0.03]cLDA model
Comparison: Change from BL to Week 2 in Worse of Pruritus or Watering Eyes: Desloratadine vs. Placebo~The LS mean change from BL to Week 2 post BL in the worse symptom of Pruritus or Watering Eyes estimated using a cLDA model, where both BL and post-BL measurements (average score of 1 week prior to Week 2) were included in the response variable. The treatment difference in terms of LS mean change from BL between desloratadine 5 mg and placebo was evaluated with the 95% confidence interval and P-value.p-value: <0.00195% CI: [-0.37, -0.12]cLDA model
Secondary

Percentage of Participants With Impression Assessments of Better or Much Better as Assessed by the Investigator at Week 2

The investigator assessed the participant's symptoms of allergic rhinitis and nasal findings at the end of the study (2 week visit or discontinuation visit) compared with those at the start of the study period (based on their recollection/memory of the participant's symptoms, no formal baseline assessment) and evaluated their impression of study drug on effect according to 6 grades: Much better, Better, Slightly better, Unchanged, Worse, or Unevaluable. The evaluation result and reason for judgment (if needed) was recorded in the participant's case report form. The investigator's impression was evaluated based on the symptoms for allergic rhinitis, nasal findings and participant's own impression at Week 2. The percentage of participants with assessments of Better and Much better graded by the investigator (Investigator's Impression Rate) was reported and analyzed using Odds Ratio analysis.

Time frame: From Baseline to Week 2

Population: Participants in the FAS (all randomized participants who took ≥1 dose of study treatment) with available impression data.

ArmMeasureGroupValue (NUMBER)
DesloratadinePercentage of Participants With Impression Assessments of Better or Much Better as Assessed by the Investigator at Week 2Much better2.3 percentage of participants
DesloratadinePercentage of Participants With Impression Assessments of Better or Much Better as Assessed by the Investigator at Week 2Better26.1 percentage of participants
DesloratadinePercentage of Participants With Impression Assessments of Better or Much Better as Assessed by the Investigator at Week 2Better + Much better Total28.4 percentage of participants
DesloratadinePercentage of Participants With Impression Assessments of Better or Much Better as Assessed by the Investigator at Week 2Less than better Total71.6 percentage of participants
PlaceboPercentage of Participants With Impression Assessments of Better or Much Better as Assessed by the Investigator at Week 2Less than better Total79.0 percentage of participants
PlaceboPercentage of Participants With Impression Assessments of Better or Much Better as Assessed by the Investigator at Week 2Much better3.1 percentage of participants
PlaceboPercentage of Participants With Impression Assessments of Better or Much Better as Assessed by the Investigator at Week 2Better + Much better Total21.0 percentage of participants
PlaceboPercentage of Participants With Impression Assessments of Better or Much Better as Assessed by the Investigator at Week 2Better17.9 percentage of participants
Comparison: Impression Rate as Assessed by Investigator: Desloratadine 5 mg/Placebo Odds Ratio~Impression was evaluated using a logistic model with impression rate (percentage of assessments of Better + Much better) as a response variable and treatment and severity as factors. Odds ratio was estimated and tested. A point estimate of \>1 indicated that desloratadine 5mg was more effective than placebo.p-value: 0.07195% CI: [0.966, 2.303]Regression, Logistic
Secondary

Percentage of Participants With Impression Assessments of Better or Much Better as Assessed Participants at Week 2

The participant evaluated their symptoms of allergic rhinitis at the end of the study (2 week visit or discontinuation visit) compared with those at the start of the study period (based on their recollection/memory of their symptoms, no formal baseline assessment) and recorded in their Subject Allergy Diary their impression of study drug on effect according to 6 grades: Much better, Better, Slightly better, Unchanged, Worse, or Unevaluable. The percentage of participants with assessments of Better and Much better graded by the participant (Participant's Impression Rate) was reported and analyzed using Odds Ratio analysis.

Time frame: From Baseline to Week 2

Population: Participants in the FAS (all randomized participants who took ≥1 dose of study treatment) with available impression data.

ArmMeasureGroupValue (NUMBER)
DesloratadinePercentage of Participants With Impression Assessments of Better or Much Better as Assessed Participants at Week 2Much better5.9 percentage of participants
DesloratadinePercentage of Participants With Impression Assessments of Better or Much Better as Assessed Participants at Week 2Better30.6 percentage of participants
DesloratadinePercentage of Participants With Impression Assessments of Better or Much Better as Assessed Participants at Week 2Better + Much better Total36.5 percentage of participants
DesloratadinePercentage of Participants With Impression Assessments of Better or Much Better as Assessed Participants at Week 2Less than better Total63.5 percentage of participants
PlaceboPercentage of Participants With Impression Assessments of Better or Much Better as Assessed Participants at Week 2Less than better Total78.9 percentage of participants
PlaceboPercentage of Participants With Impression Assessments of Better or Much Better as Assessed Participants at Week 2Much better4.9 percentage of participants
PlaceboPercentage of Participants With Impression Assessments of Better or Much Better as Assessed Participants at Week 2Better + Much better Total21.1 percentage of participants
PlaceboPercentage of Participants With Impression Assessments of Better or Much Better as Assessed Participants at Week 2Better16.1 percentage of participants
Comparison: Impression Rate as Assessed by Participant: Desloratadine 5 mg/Placebo Odds Ratio~Impression was evaluated using a logistic model with impression rate (percentage of assessments of Better + Much better) as a response variable and treatment and severity as factors. Odds ratio was estimated and tested. A point estimate of \>1 indicated that desloratadine 5mg was more effective than placebop-value: <0.00195% CI: [1.408, 3.28]Regression, Logistic

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