Trial Outcomes & Findings for A Study of the Efficacy and Safety of Desloratadine (MK-4117) in Japanese Participants With Perennial Allergic Rhinitis (MK-4117-200) (NCT NCT01918033)

NCT ID: NCT01918033

Last Updated: 2024-06-18

Results Overview

The investigator interviewed and examined participants to evaluate for nasal symptoms of: sneezing (daily frequency of attacks; score of 0=less than 1 time to 3=11+ times), rhinorrhea (daily frequency of blowing nose; score of 0=less than 1 time to 3=11+ times), nasal congestion (score of 0=less than nasal blockage without oral breathing to 3=severe nasal blockage causing prolonged oral breathing in a day), and nasal itching (score of 0=none to 3=nose is itchy, requiring frequent rubbing or blowing nose). The TNSS is the sum of the 4 nasal symptom sub-scores. TNSS scores could range from 0 to 12, with a higher score indicating more frequent/severe nasal symptoms.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

608 participants

Primary outcome timeframe

Baseline and Week 2

Results posted on

2024-06-18

Participant Flow

Participant milestones

Participant milestones
Measure
Desloratadine 5 mg
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
Participants receive two placebo tablets orally once daily for up to 2 weeks
Overall Study
STARTED
203
203
202
Overall Study
Treated
202
203
201
Overall Study
COMPLETED
198
201
199
Overall Study
NOT COMPLETED
5
2
3

Reasons for withdrawal

Reasons for withdrawal
Measure
Desloratadine 5 mg
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
Participants receive two placebo tablets orally once daily for up to 2 weeks
Overall Study
Adverse Event
1
0
2
Overall Study
Lost to Follow-up
0
1
0
Overall Study
Protocol Violation
2
0
1
Overall Study
Withdrawal by Subject
2
1
0

Baseline Characteristics

A Study of the Efficacy and Safety of Desloratadine (MK-4117) in Japanese Participants With Perennial Allergic Rhinitis (MK-4117-200)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Desloratadine 5 mg
n=203 Participants
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
n=203 Participants
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
n=202 Participants
Participants receive two placebo tablets orally once daily for up to 2 weeks
Total
n=608 Participants
Total of all reporting groups
Age, Continuous
34.3 Years
STANDARD_DEVIATION 13.1 • n=5 Participants
33.7 Years
STANDARD_DEVIATION 11.9 • n=7 Participants
34.7 Years
STANDARD_DEVIATION 12.6 • n=5 Participants
34.2 Years
STANDARD_DEVIATION 12.5 • n=4 Participants
Sex: Female, Male
Female
116 Participants
n=5 Participants
105 Participants
n=7 Participants
121 Participants
n=5 Participants
342 Participants
n=4 Participants
Sex: Female, Male
Male
87 Participants
n=5 Participants
98 Participants
n=7 Participants
81 Participants
n=5 Participants
266 Participants
n=4 Participants

PRIMARY outcome

Timeframe: Baseline and Week 2

Population: The Full Analysis Set (FAS) population consisted of all participants who took at least one dose of study drug and had a baseline or at least one post-baseline assessment for TNSS.

The investigator interviewed and examined participants to evaluate for nasal symptoms of: sneezing (daily frequency of attacks; score of 0=less than 1 time to 3=11+ times), rhinorrhea (daily frequency of blowing nose; score of 0=less than 1 time to 3=11+ times), nasal congestion (score of 0=less than nasal blockage without oral breathing to 3=severe nasal blockage causing prolonged oral breathing in a day), and nasal itching (score of 0=none to 3=nose is itchy, requiring frequent rubbing or blowing nose). The TNSS is the sum of the 4 nasal symptom sub-scores. TNSS scores could range from 0 to 12, with a higher score indicating more frequent/severe nasal symptoms.

Outcome measures

Outcome measures
Measure
Desloratadine 5 mg
n=202 Participants
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
n=203 Participants
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
n=201 Participants
Participants receive two placebo tablets orally once daily for up to 2 weeks
Change From Baseline in Total Nasal Symptom Score (TNSS) Assessed by the Investigator at Week 2
-1.96 Score on a Scale
95% Confidence Interval 2.21 • Interval -2.25 to -1.67
-1.94 Score on a Scale
95% Confidence Interval 2.21 • Interval -2.23 to -1.65
-1.87 Score on a Scale
95% Confidence Interval 2.34 • Interval -2.16 to -1.58

PRIMARY outcome

Timeframe: Up to Week 4

Population: The All-Subjects-as-Treated (ASaT) population consisted of all participants who received at least one dose of study drug.

An AE is defined as any unfavourable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of the study drug or protocol-specified procedure, whether or not considered related to the study drug or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of the study drug, is also an AE. The number of participants who experienced an AE, regardless of causality or severity, was summarized.

Outcome measures

Outcome measures
Measure
Desloratadine 5 mg
n=202 Participants
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
n=203 Participants
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
n=201 Participants
Participants receive two placebo tablets orally once daily for up to 2 weeks
Number of Participants Experiencing an Adverse Event (AE)
27 Participants
29 Participants
20 Participants

PRIMARY outcome

Timeframe: Up to Week 2

Population: The ASaT population consisted of all participants who received at least one dose of study drug.

An AE is defined as any unfavourable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of the study drug or protocol-specified procedure, whether or not considered related to the study drug or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that is temporally associated with the use of the study drug, is also an AE. The number of participants who discontinued study drug, whether permanently or temporarily, due to an AE was summarized.

Outcome measures

Outcome measures
Measure
Desloratadine 5 mg
n=202 Participants
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
n=203 Participants
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
n=201 Participants
Participants receive two placebo tablets orally once daily for up to 2 weeks
Number of Participants Discontinuing Study Drug Due to an AE
1 Participants
0 Participants
2 Participants

SECONDARY outcome

Timeframe: Baseline and Day 3, Week 1

Population: The FAS population consisted of all participants who took at least one dose of study drug and had a baseline or at least one post-baseline assessment for TNSS.

The investigator interviewed and examined participants to evaluate for nasal symptoms of: sneezing (daily frequency of attacks; score of 0=less than 1 time to 3=11+ times), rhinorrhea (daily frequency of blowing nose; score of 0=less than 1 time to 3=11+ times), nasal congestion (score of 0=less than nasal blockage without oral breathing to 3=severe nasal blockage causing prolonged oral breathing in a day), and nasal itching (score of 0=none to 3=nose is itchy, requiring frequent rubbing or blowing nose). The TNSS is the sum of the 4 nasal symptom sub-scores. TNSS scores could range from 0 to 12, with a higher score indicating more frequent/severe nasal symptoms.

Outcome measures

Outcome measures
Measure
Desloratadine 5 mg
n=202 Participants
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
n=203 Participants
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
n=201 Participants
Participants receive two placebo tablets orally once daily for up to 2 weeks
Change From Baseline in Total Nasal Symptom Score (TNSS) Assessed by the Investigator at Day 3 and Week 1
Change from Baseline (BL) at Day 3
-1.12 Score on a Scale
95% Confidence Interval 2.05 • Interval -1.38 to -0.86
-1.11 Score on a Scale
95% Confidence Interval 2.02 • Interval -1.37 to -0.85
-0.63 Score on a Scale
95% Confidence Interval 2.03 • Interval -0.89 to -0.37
Change From Baseline in Total Nasal Symptom Score (TNSS) Assessed by the Investigator at Day 3 and Week 1
Change from BL at Week 1
-1.39 Score on a Scale
95% Confidence Interval 2.41 • Interval -1.68 to -1.09
-1.39 Score on a Scale
95% Confidence Interval 2.28 • Interval -1.69 to -1.1
-1.48 Score on a Scale
95% Confidence Interval 2.32 • Interval -1.78 to -1.18

SECONDARY outcome

Timeframe: Baseline and Day 3, Week 1, Week 2

Population: The FAS population consisted of all participants who took at least one dose of study drug and had a baseline or at least one post-baseline assessment for nasal symptom sub-scores as assessed by the investigator.

The investigator interviewed and examined participants to evaluate for nasal symptoms of: sneezing (daily frequency of attackes; score of 0=less than 1 time to 3=11+ times), rhinorrhea (daily frequency of blowing nose; score of 0=less than 1 time to 3=11+ times), nasal congestion (score of 0=less than nasal blockage without oral breathing to 3=severe nasal blockage causing prolonged oral breathing in a day), and nasal itching (score of 0=none to 3=nose is itchy, requiring frequent rubbing or blowing nose). Nasal symptom sub-scores could range from 0 to 3, with a higher nasal symptom sub-score indicating more frequent/severe nasal symptoms.

Outcome measures

Outcome measures
Measure
Desloratadine 5 mg
n=202 Participants
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
n=203 Participants
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
n=201 Participants
Participants receive two placebo tablets orally once daily for up to 2 weeks
Change From Baseline in Nasal Symptom Sub-Scores Assessed by the Investigator
Sneezing: Change from BL at Day 3
-0.21 Score on a Scale
95% Confidence Interval 0.75 • Interval -0.3 to -0.13
-0.29 Score on a Scale
95% Confidence Interval 0.67 • Interval -0.38 to -0.2
-0.13 Score on a Scale
95% Confidence Interval 0.65 • Interval -0.21 to -0.04
Change From Baseline in Nasal Symptom Sub-Scores Assessed by the Investigator
Sneezing: Change from BL at Week 1
-0.27 Score on a Scale
95% Confidence Interval 0.78 • Interval -0.36 to -0.17
-0.36 Score on a Scale
95% Confidence Interval 0.75 • Interval -0.45 to -0.27
-0.38 Score on a Scale
95% Confidence Interval 0.76 • Interval -0.47 to -0.29
Change From Baseline in Nasal Symptom Sub-Scores Assessed by the Investigator
Sneezing: Change from BL at Week 2
-0.44 Score on a Scale
95% Confidence Interval 0.74 • Interval -0.52 to -0.35
-0.51 Score on a Scale
95% Confidence Interval 0.69 • Interval -0.59 to -0.42
-0.40 Score on a Scale
95% Confidence Interval 0.73 • Interval -0.49 to -0.32
Change From Baseline in Nasal Symptom Sub-Scores Assessed by the Investigator
Rhinorrhea: Change from BL at Day 3
-0.37 Score on a Scale
95% Confidence Interval 0.66 • Interval -0.47 to -0.28
-0.32 Score on a Scale
95% Confidence Interval 0.73 • Interval -0.41 to -0.22
-0.24 Score on a Scale
95% Confidence Interval 0.74 • Interval -0.33 to -0.15
Change From Baseline in Nasal Symptom Sub-Scores Assessed by the Investigator
Rhinorrhea: Change from BL at Week 1
-0.39 Score on a Scale
95% Confidence Interval 0.77 • Interval -0.49 to -0.29
-0.38 Score on a Scale
95% Confidence Interval 0.83 • Interval -0.48 to -0.28
-0.44 Score on a Scale
95% Confidence Interval 0.78 • Interval -0.54 to -0.34
Change From Baseline in Nasal Symptom Sub-Scores Assessed by the Investigator
Rhinorrhea: Change from BL at Week 2
-0.57 Score on a Scale
95% Confidence Interval 0.73 • Interval -0.67 to -0.47
-0.53 Score on a Scale
95% Confidence Interval 0.83 • Interval -0.63 to -0.43
-0.56 Score on a Scale
95% Confidence Interval 0.83 • Interval -0.66 to -0.46
Change From Baseline in Nasal Symptom Sub-Scores Assessed by the Investigator
Nasal Congestion: Change from BL at Day 3
-0.22 Score on a Scale
95% Confidence Interval 0.68 • Interval -0.3 to -0.13
-0.17 Score on a Scale
95% Confidence Interval 0.68 • Interval -0.26 to -0.09
-0.13 Score on a Scale
95% Confidence Interval 0.65 • Interval -0.22 to -0.04
Change From Baseline in Nasal Symptom Sub-Scores Assessed by the Investigator
Nasal Congestion: Change from BL at Week 1
-0.28 Score on a Scale
95% Confidence Interval 0.81 • Interval -0.38 to -0.18
-0.22 Score on a Scale
95% Confidence Interval 0.70 • Interval -0.32 to -0.13
-0.32 Score on a Scale
95% Confidence Interval 0.73 • Interval -0.42 to -0.23
Change From Baseline in Nasal Symptom Sub-Scores Assessed by the Investigator
Nasal Congestion: Change from BL at Week 2
-0.33 Score on a Scale
95% Confidence Interval 0.78 • Interval -0.43 to -0.23
-0.33 Score on a Scale
95% Confidence Interval 0.75 • Interval -0.43 to -0.23
-0.37 Score on a Scale
95% Confidence Interval 0.77 • Interval -0.47 to -0.27
Change From Baseline in Nasal Symptom Sub-Scores Assessed by the Investigator
Nasal Itching: Change from BL at Week 1
-0.44 Score on a Scale
95% Confidence Interval 0.84 • Interval -0.55 to -0.33
-0.44 Score on a Scale
95% Confidence Interval 0.88 • Interval -0.55 to -0.34
-0.35 Score on a Scale
95% Confidence Interval 0.88 • Interval -0.45 to -0.24
Change From Baseline in Nasal Symptom Sub-Scores Assessed by the Investigator
Nasal Itching: Change from BL at Week 2
-0.63 Score on a Scale
95% Confidence Interval 0.91 • Interval -0.74 to -0.53
-0.58 Score on a Scale
95% Confidence Interval 0.86 • Interval -0.68 to -0.48
-0.52 Score on a Scale
95% Confidence Interval 0.84 • Interval -0.62 to -0.42
Change From Baseline in Nasal Symptom Sub-Scores Assessed by the Investigator
Nasal Itching: Change from BL at Day 3
-0.32 Score on a Scale
95% Confidence Interval 0.79 • Interval -0.42 to -0.22
-0.33 Score on a Scale
95% Confidence Interval 0.82 • Interval -0.43 to -0.23
-0.15 Score on a Scale
95% Confidence Interval 0.80 • Interval -0.25 to -0.05

SECONDARY outcome

Timeframe: Baseline and Day 3, Week 1, Week 2

Population: The FAS population consisted of all participants who took at least one dose of study drug and had a baseline or at least one post-baseline assessment for nasal finding score.

The investigator conducted rhinoscopic examinations on participants to evaluate: swelling of inferior nasal concha mucosa (INCM) (score of 0=none to 3=middle nasal concha is not visible), coloring of inferior nasal concha mucosa (INCM) (score of 0=normal to 3=pale), and nasal discharge production (NDP) (score of 0=none to 3=congesting). The score for each nasal finding component could range from 0 to 3, with a higher score indicating more severe symptoms.

Outcome measures

Outcome measures
Measure
Desloratadine 5 mg
n=202 Participants
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
n=203 Participants
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
n=201 Participants
Participants receive two placebo tablets orally once daily for up to 2 weeks
Change From Baseline in Nasal Finding Score Assessed by the Investigator
Swelling of INCM: Change from BL at Day 3
-0.23 Score on a Scale
95% Confidence Interval 0.70 • Interval -0.32 to -0.14
-0.17 Score on a Scale
95% Confidence Interval 0.68 • Interval -0.26 to -0.08
-0.13 Score on a Scale
95% Confidence Interval 0.71 • Interval -0.22 to -0.05
Change From Baseline in Nasal Finding Score Assessed by the Investigator
Swelling of INCM: Change from BL at Week 2
-0.38 Score on a Scale
95% Confidence Interval 0.74 • Interval -0.48 to -0.28
-0.34 Score on a Scale
95% Confidence Interval 0.71 • Interval -0.44 to -0.24
-0.32 Score on a Scale
95% Confidence Interval 0.82 • Interval -0.41 to -0.22
Change From Baseline in Nasal Finding Score Assessed by the Investigator
Coloring of INCM: Change from BL at Week 1
-0.35 Score on a Scale
95% Confidence Interval 0.88 • Interval -0.47 to -0.24
-0.38 Score on a Scale
95% Confidence Interval 0.89 • Interval -0.49 to -0.27
-0.40 Score on a Scale
95% Confidence Interval 0.91 • Interval -0.51 to -0.28
Change From Baseline in Nasal Finding Score Assessed by the Investigator
Coloring of INCM: Change from BL at Week 2
-0.48 Score on a Scale
95% Confidence Interval 0.97 • Interval -0.6 to -0.36
-0.48 Score on a Scale
95% Confidence Interval 0.85 • Interval -0.6 to -0.37
-0.45 Score on a Scale
95% Confidence Interval 0.96 • Interval -0.57 to -0.33
Change From Baseline in Nasal Finding Score Assessed by the Investigator
NDP: Change from BL at Day 3
-0.23 Score on a Scale
95% Confidence Interval 0.76 • Interval -0.32 to -0.14
-0.24 Score on a Scale
95% Confidence Interval 0.75 • Interval -0.32 to -0.15
-0.18 Score on a Scale
95% Confidence Interval 0.65 • Interval -0.27 to -0.09
Change From Baseline in Nasal Finding Score Assessed by the Investigator
NDP: Change from BL at Week 1
-0.33 Score on a Scale
95% Confidence Interval 0.75 • Interval -0.42 to -0.24
-0.36 Score on a Scale
95% Confidence Interval 0.75 • Interval -0.45 to -0.26
-0.41 Score on a Scale
95% Confidence Interval 0.75 • Interval -0.5 to -0.31
Change From Baseline in Nasal Finding Score Assessed by the Investigator
NDP: Change from BL at Week 2
-0.41 Score on a Scale
95% Confidence Interval 0.71 • Interval -0.51 to -0.32
-0.38 Score on a Scale
95% Confidence Interval 0.76 • Interval -0.48 to -0.29
-0.44 Score on a Scale
95% Confidence Interval 0.76 • Interval -0.54 to -0.35
Change From Baseline in Nasal Finding Score Assessed by the Investigator
Swelling of INCM: Change from BL at Week 1
-0.35 Score on a Scale
95% Confidence Interval 0.71 • Interval -0.44 to -0.25
-0.31 Score on a Scale
95% Confidence Interval 0.69 • Interval -0.4 to -0.21
-0.34 Score on a Scale
95% Confidence Interval 0.78 • Interval -0.43 to -0.24
Change From Baseline in Nasal Finding Score Assessed by the Investigator
Coloring of INCM: Change from BL at Day 3
-0.27 Score on a Scale
95% Confidence Interval 0.86 • Interval -0.37 to -0.16
-0.26 Score on a Scale
95% Confidence Interval 0.79 • Interval -0.36 to -0.15
-0.26 Score on a Scale
95% Confidence Interval 0.81 • Interval -0.36 to -0.15

SECONDARY outcome

Timeframe: Baseline and Day 3, Week 1, Week 2

Population: The FAS population consisted of all participants who took at least one dose of study drug and had a baseline or at least one post-baseline assessment for eye symptom score as assessed by the investigator.

The investigator interviewed and examined participants for eye (itching) symptoms (score of 0=none to 3=eye is itchy, requiring frequent rubbing of eye). Eye symptom scores could range from 0 to 3, with a higher score indicating greater eye itchiness.

Outcome measures

Outcome measures
Measure
Desloratadine 5 mg
n=202 Participants
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
n=203 Participants
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
n=201 Participants
Participants receive two placebo tablets orally once daily for up to 2 weeks
Change From Baseline in Eye Symptom Score Assessed by the Investigator
Change from BL at Day 3
-0.17 Score on a Scale
95% Confidence Interval 0.76 • Interval -0.27 to -0.08
-0.24 Score on a Scale
95% Confidence Interval 0.71 • Interval -0.34 to -0.15
-0.13 Score on a Scale
95% Confidence Interval 0.74 • Interval -0.22 to -0.04
Change From Baseline in Eye Symptom Score Assessed by the Investigator
Change from BL at Week 1
-0.28 Score on a Scale
95% Confidence Interval 0.76 • Interval -0.38 to -0.18
-0.35 Score on a Scale
95% Confidence Interval 0.76 • Interval -0.44 to -0.25
-0.26 Score on a Scale
95% Confidence Interval 0.83 • Interval -0.36 to -0.16
Change From Baseline in Eye Symptom Score Assessed by the Investigator
Change from BL at Week 2
-0.38 Score on a Scale
95% Confidence Interval 0.84 • Interval -0.48 to -0.28
-0.44 Score on a Scale
95% Confidence Interval 0.77 • Interval -0.54 to -0.34
-0.37 Score on a Scale
95% Confidence Interval 0.79 • Interval -0.46 to -0.27

SECONDARY outcome

Timeframe: Day 3, Week 1, Week 2

Population: The FAS population consisted of all participants who took at least one dose of study drug and had a baseline or at least one post-baseline assessment for global improvement.

The investigator comprehensively evaluated participants on global improvement according to 5 grades: 1=remarkably improved, 2= moderately improved, 3=slightly improved, 4=unchanged, and 5=aggravated. The number of participants who were evaluated as remarkably improved and moderately improved was calculated.

Outcome measures

Outcome measures
Measure
Desloratadine 5 mg
n=200 Participants
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
n=203 Participants
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
n=201 Participants
Participants receive two placebo tablets orally once daily for up to 2 weeks
Number of Participants With Moderate-to-Remarkable Improvement in Global Improvement Assessed by the Investigator
Day 3 (n=199, 201, 200)
67 Participants
61 Participants
53 Participants
Number of Participants With Moderate-to-Remarkable Improvement in Global Improvement Assessed by the Investigator
Week 1 (n=200, 203, 201)
72 Participants
83 Participants
91 Participants
Number of Participants With Moderate-to-Remarkable Improvement in Global Improvement Assessed by the Investigator
Week 2 (n=200, 203, 201)
96 Participants
93 Participants
106 Participants

SECONDARY outcome

Timeframe: Baseline and Day 3, Week 1, Week 2

Population: The FAS population consisted of all participants who took at least one dose of study drug and had a baseline or at least one post-baseline assessment for interference with daily activities.

The investigator interviewed participants at Baseline, Day 3, Week 1 and Week 2 to evaluate interference with daily activities according to the following scale: 0=none, 1=nasal symptom interferes with daily activities from time to time (+), 2=between 1 and 3 (++), and 3=nasal symtom interferes with daily activity often (+++). Interference with daily activities scores could range from 0 to 3, with a higher score indicating greater interference with daily activities.

Outcome measures

Outcome measures
Measure
Desloratadine 5 mg
n=202 Participants
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
n=203 Participants
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
n=201 Participants
Participants receive two placebo tablets orally once daily for up to 2 weeks
Change From Baseline in Score on Interference With Daily Activities Assessed by the Investigator
Change from BL at Day 3
-0.18 Score on a Scale
95% Confidence Interval 0.63 • Interval -0.26 to -0.1
-0.19 Score on a Scale
95% Confidence Interval 0.58 • Interval -0.27 to -0.12
-0.07 Score on a Scale
95% Confidence Interval 0.62 • Interval -0.15 to 0.0
Change From Baseline in Score on Interference With Daily Activities Assessed by the Investigator
Change from BL at Week 1
-0.22 Score on a Scale
95% Confidence Interval 0.69 • Interval -0.3 to -0.13
-0.21 Score on a Scale
95% Confidence Interval 0.68 • Interval -0.29 to -0.12
-0.20 Score on a Scale
95% Confidence Interval 0.64 • Interval -0.28 to -0.11
Change From Baseline in Score on Interference With Daily Activities Assessed by the Investigator
Change from BL at Week 2
-0.25 Score on a Scale
95% Confidence Interval 0.73 • Interval -0.34 to -0.16
-0.29 Score on a Scale
95% Confidence Interval 0.69 • Interval -0.38 to -0.2
-0.27 Score on a Scale
95% Confidence Interval 0.71 • Interval -0.36 to -0.19

SECONDARY outcome

Timeframe: Baseline and Day 3, Week 1, Week 2

Population: The FAS population consisted of all participants who took at least one dose of study drug and had a baseline or at least one post-baseline assessment for participant-rated nasal symptom score.

Participants evaluated themselves in their daily allergy diaries for nasal symptoms of: sneezing (daily frequency of attacks; score of 0=less than 1 time to 3=11+ times), rhinorrhea (daily frequency of blowing nose; score of 0=less than 1 time to 3=11+ times), nasal congestion (score of 0=less than nasal blockage without oral breathing to 3=severe nasal blockage causing prolonged oral breathing in a day), and nasal itching (score of 0=none to 3=nose is itchy, requiring frequent rubbing or blowing nose). Each nasal symptom sub-score could range from 0 to 3, with a higher sub-score indicating more frequent/severe nasal symptoms.

Outcome measures

Outcome measures
Measure
Desloratadine 5 mg
n=202 Participants
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
n=203 Participants
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
n=201 Participants
Participants receive two placebo tablets orally once daily for up to 2 weeks
Change From Baseline in Nasal Symptom Sub-Scores Reported in Participant Diaries
Rhinorrhea: Change from BL at Week 1
-0.29 Score on a Scale
95% Confidence Interval 0.81 • Interval -0.39 to -0.18
-0.36 Score on a Scale
95% Confidence Interval 0.81 • Interval -0.46 to -0.26
-0.34 Score on a Scale
95% Confidence Interval 0.84 • Interval -0.44 to -0.23
Change From Baseline in Nasal Symptom Sub-Scores Reported in Participant Diaries
Rhinorrhea: Change from BL at Week 2
-0.33 Score on a Scale
95% Confidence Interval 0.85 • Interval -0.45 to -0.22
-0.38 Score on a Scale
95% Confidence Interval 0.86 • Interval -0.5 to -0.27
-0.45 Score on a Scale
95% Confidence Interval 0.88 • Interval -0.57 to -0.34
Change From Baseline in Nasal Symptom Sub-Scores Reported in Participant Diaries
Sneezing: Change from BL at Day 3
-0.27 Score on a Scale
95% Confidence Interval 0.72 • Interval -0.36 to -0.18
-0.32 Score on a Scale
95% Confidence Interval 0.76 • Interval -0.41 to -0.23
-0.23 Score on a Scale
95% Confidence Interval 0.79 • Interval -0.32 to -0.13
Change From Baseline in Nasal Symptom Sub-Scores Reported in Participant Diaries
Sneezing: Change from BL at Week 1
-0.38 Score on a Scale
95% Confidence Interval 0.72 • Interval -0.48 to -0.29
-0.40 Score on a Scale
95% Confidence Interval 0.84 • Interval -0.49 to -0.3
-0.30 Score on a Scale
95% Confidence Interval 0.75 • Interval -0.39 to -0.2
Change From Baseline in Nasal Symptom Sub-Scores Reported in Participant Diaries
Sneezing: Change from BL at Week 2
-0.43 Score on a Scale
95% Confidence Interval 0.81 • Interval -0.54 to -0.32
-0.45 Score on a Scale
95% Confidence Interval 0.86 • Interval -0.55 to -0.35
-0.33 Score on a Scale
95% Confidence Interval 0.81 • Interval -0.44 to -0.23
Change From Baseline in Nasal Symptom Sub-Scores Reported in Participant Diaries
Rhinorrhea: Change from BL at Day 3
-0.20 Score on a Scale
95% Confidence Interval 0.76 • Interval -0.3 to -0.11
-0.29 Score on a Scale
95% Confidence Interval 0.74 • Interval -0.39 to -0.19
-0.17 Score on a Scale
95% Confidence Interval 0.80 • Interval -0.27 to -0.08
Change From Baseline in Nasal Symptom Sub-Scores Reported in Participant Diaries
Nasal Congestion: Change from BL at Day 3
-0.18 Score on a Scale
95% Confidence Interval 0.71 • Interval -0.28 to -0.09
-0.17 Score on a Scale
95% Confidence Interval 0.73 • Interval -0.27 to -0.08
-0.18 Score on a Scale
95% Confidence Interval 0.75 • Interval -0.28 to -0.09
Change From Baseline in Nasal Symptom Sub-Scores Reported in Participant Diaries
Nasal Congestion: Change from BL at Week 1
-0.23 Score on a Scale
95% Confidence Interval 0.69 • Interval -0.33 to -0.13
-0.24 Score on a Scale
95% Confidence Interval 0.79 • Interval -0.34 to -0.14
-0.25 Score on a Scale
95% Confidence Interval 0.83 • Interval -0.35 to -0.15
Change From Baseline in Nasal Symptom Sub-Scores Reported in Participant Diaries
Nasal Congestion: Change from BL at Week 2
-0.23 Score on a Scale
95% Confidence Interval 0.76 • Interval -34.0 to -0.12
-0.26 Score on a Scale
95% Confidence Interval 0.88 • Interval -0.37 to -0.15
-0.32 Score on a Scale
95% Confidence Interval 0.78 • Interval -0.43 to -0.2
Change From Baseline in Nasal Symptom Sub-Scores Reported in Participant Diaries
Nasal Itching: Change from BL at Day 3
-0.29 Score on a Scale
95% Confidence Interval 0.76 • Interval -0.39 to -0.19
-0.35 Score on a Scale
95% Confidence Interval 0.85 • Interval -0.45 to -0.25
-0.22 Score on a Scale
95% Confidence Interval 0.77 • Interval -0.33 to -0.12
Change From Baseline in Nasal Symptom Sub-Scores Reported in Participant Diaries
Nasal Itching: Change from BL at Week 1
-0.40 Score on a Scale
95% Confidence Interval 0.88 • Interval -0.51 to -0.3
-0.42 Score on a Scale
95% Confidence Interval 0.80 • Interval -0.53 to -0.32
-0.39 Score on a Scale
95% Confidence Interval 0.87 • Interval -0.5 to -0.29
Change From Baseline in Nasal Symptom Sub-Scores Reported in Participant Diaries
Nasal Itching: Change from BL at Week 2
-0.52 Score on a Scale
95% Confidence Interval 0.92 • Interval -0.64 to -0.4
-0.47 Score on a Scale
95% Confidence Interval 0.90 • Interval -0.59 to -0.36
-0.44 Score on a Scale
95% Confidence Interval 0.87 • Interval -0.56 to -0.33

SECONDARY outcome

Timeframe: Baseline and Day 3, Week 1, Week 2

Population: The FAS population consisted of all participants who took at least one dose of study drug and had a baseline or at least one post-baseline assessment for participant-rated eye symptom score.

Participants evaluated themselves in their daily allergy diaries for eye (itching) symptoms (score of 0=none to 3=eye is itchy, requiring frequent rubbing of eye). Eye symptom scores could range from 0 to 3, with a higher score indicating greater eye itchiness.

Outcome measures

Outcome measures
Measure
Desloratadine 5 mg
n=202 Participants
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
n=203 Participants
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
n=201 Participants
Participants receive two placebo tablets orally once daily for up to 2 weeks
Change From Baseline in Eye Symptom Score Reported in Participant Diaries
Change from BL at Day 3
-0.28 Score on a Scale
95% Confidence Interval 0.73 • Interval -0.38 to -0.19
-0.25 Score on a Scale
95% Confidence Interval 0.72 • Interval -0.34 to -0.15
-0.20 Score on a Scale
95% Confidence Interval 0.83 • Interval -0.3 to -0.11
Change From Baseline in Eye Symptom Score Reported in Participant Diaries
Change from BL at Week 1
-0.31 Score on a Scale
95% Confidence Interval 0.82 • Interval -0.4 to -0.21
-0.33 Score on a Scale
95% Confidence Interval 0.75 • Interval -0.43 to -0.24
-0.26 Score on a Scale
95% Confidence Interval 0.80 • Interval -0.35 to -0.16
Change From Baseline in Eye Symptom Score Reported in Participant Diaries
Change from BL at Week 2
-0.33 Score on a Scale
95% Confidence Interval 0.80 • Interval -0.44 to -0.22
-0.35 Score on a Scale
95% Confidence Interval 0.82 • Interval -0.45 to -0.24
-0.27 Score on a Scale
95% Confidence Interval 0.84 • Interval -0.38 to -0.17

Adverse Events

Desloratadine 5 mg

Serious events: 1 serious events
Other events: 11 other events
Deaths: 0 deaths

Desloratadine 10 mg

Serious events: 0 serious events
Other events: 17 other events
Deaths: 0 deaths

Placebo

Serious events: 0 serious events
Other events: 9 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Desloratadine 5 mg
n=202 participants at risk
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
n=203 participants at risk
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
n=201 participants at risk
Participants receive two placebo tablets orally once daily for up to 2 weeks
Nervous system disorders
Epilepsy
0.50%
1/202 • Number of events 1 • Up to 2 weeks after last dose of study drug (up to 4 weeks)
The population consisted of all participants who received at least one dose of study drug.
0.00%
0/203 • Up to 2 weeks after last dose of study drug (up to 4 weeks)
The population consisted of all participants who received at least one dose of study drug.
0.00%
0/201 • Up to 2 weeks after last dose of study drug (up to 4 weeks)
The population consisted of all participants who received at least one dose of study drug.

Other adverse events

Other adverse events
Measure
Desloratadine 5 mg
n=202 participants at risk
Participants receive one desloratadine 5 mg tablet and one placebo tablet orally once daily for up to 2 weeks
Desloratadine 10 mg
n=203 participants at risk
Participants receive two desloratadine 5 mg tablets orally once daily for up to 2 weeks
Placebo
n=201 participants at risk
Participants receive two placebo tablets orally once daily for up to 2 weeks
Infections and infestations
Nasphopharyngitis
5.4%
11/202 • Number of events 12 • Up to 2 weeks after last dose of study drug (up to 4 weeks)
The population consisted of all participants who received at least one dose of study drug.
8.4%
17/203 • Number of events 17 • Up to 2 weeks after last dose of study drug (up to 4 weeks)
The population consisted of all participants who received at least one dose of study drug.
4.5%
9/201 • Number of events 10 • Up to 2 weeks after last dose of study drug (up to 4 weeks)
The population consisted of all participants who received at least one dose of study drug.

Additional Information

Senior Vice President, Global Clinical Development

Merck Sharp & Dohme Corp.

Phone: 1-800-672-6372

Results disclosure agreements

  • Principal investigator is a sponsor employee The sponsor must have the opportunity to review all proposed abstracts, manuscripts or presentations regarding this trial 45 days prior to submission for publication/presentation.
  • Publication restrictions are in place

Restriction type: OTHER