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723/726 Proof of Concept Study in Allergen Challenge Chamber in Hannover

A Randomised, Double-blind, Placebo-controlled 4-period Cross-over Study to Assess the Efficacy and Safety of Repeat Dose Intranasal GSK1004723 (1000µg), Oral GSK835726 (10mg) and Cetirizine (10mg) in the Environmental Challenge Chamber in Subjects With Seasonal Allergic Rhinitis

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00972504
Enrollment
54
Registered
2009-09-07
Start date
2009-06-01
Completion date
2009-08-14
Last updated
2017-08-02

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

Conditions

Rhinitis, Allergic, Seasonal

Keywords

Proof of concept

Brief summary

This is a randomised, double-blind, placebo-controlled 4-period cross-over study to assess the efficacy and safety of repeat dose intranasal GSK1004723 (1000µg), oral GSK835726 (10mg) and cetirizine (10mg) in the environmental challenge chamber in subjects with seasonal allergic rhinitis.

Interventions

DRUGGSK835726 10mg

GSK835726 10mg tablet

DRUGGSK1004723 1000mcg

GSK1004723 1000mcg nasal spray solution

Cetirizine 10mg active comparator

DRUGplacebo

placebo to match actives

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Subject is healthy apart from seasonal allergic rhinitis, as determined by a physician. Can have mild asthma. * Males or female using contraceptives * Aged 18 - 65 * Weight 50kg+, BMI 19-32 kg/m2 * Exhibit response to Challenge Chamber and skin prick test. * Non-smoker * Capable of giving informed consent * AST and ALT\<2xULN; alkaline phosphatase and bilirubin \<or=1.5xULN

Exclusion criteria

* No nasal structural abnornmality/polyposis, surgery, infection. * any respiratory disease, other than mild asthma or seasonal allergic rhinitis * participated in another clinical study within 30 days. * Subject has donated a unit of blood within 1 month * Use of prescription or non-prescription drugs, including vitamins and st john's wort within 7 days of trial. * History of sensitivty to drug * History of alcohol/drug abuse within 12 months. * Positive Hepatitis B antibody test * Positive HIV antibody test * Risk of non-compliance with study protocol * Pregnant or llactating females * Perenial allergic rhinitis * Administration of oral, injectable or dermal corticosteriods within 8 weeks, intranasal or inhaled within 3 weeks. * Past or present disease that may affect outcome, as judge by investigator * Specific Immunotherapy within 2 years

Design outcomes

Primary

MeasureTime frameDescription
Weighted Mean TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Day 3 of each treatment period (approximately up to 63 days)On the third dosing day, participants entered the ECC for a duration of 6 hours, 1 hour after receiving their third dose. Time 0 hour was considered as the time that the participant entered the ECC. Nasal blockage, itch, sneeze and rhinorrhoea was scored on a categorical scale from 0 to 3 (0: no symptoms; 1: mild symptoms; 2: moderate symptoms; 3: severe symptoms). The total TNSS ranged from 0-12 point, with low score indicates well-being and higher score indicates more severity. Individual symptoms scores was summed at each time point (0, 20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300, 320, 340 and 360 minutes). The adjusted mean is provided as least square mean.

Secondary

MeasureTime frameDescription
Weighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Day 3 of each treatment period (approximately up to 63 days)On the third dosing day, participants entered the ECC for a duration of 6 hours, 1 hour after receiving their third dose. Time 0 hour was considered as the time that the participant entered the ECC. Nasal blockage, itch, sneeze and rhinorrhoea was scored on a categorical scale from 0 to 3 (0: no symptoms; 1: mild symptoms; 2: moderate symptoms; 3: severe symptoms). The total TNSS ranged from 0-12 point, with low score indicates well-being and higher score indicates more severity. Individual symptoms scores was summed to produce the TNSS at each time point (0, 20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300, 320, 340 and 360 minutes). The adjusted mean is provided as least square mean.
Weighted Mean Wet Tissue Weight (as a Surrogate Marker of Nasal Secretion) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Day 3 of each treatment period (approximately up to 63 days)On the third dosing day, participants entered the ECC for a duration of 6 hours, 1 hour after receiving their third dose. Time 0 hour was considered as the time that the participant entered the ECC. Wet tissue weight assessments was measured as a surrogate marker of nasal secretion at 60, 120, 180, 240, 300 and 360 minutes. The adjusted mean is provided as least square mean.
Weighted Mean Nasal Congestion VAS 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Day 3 of each treatment period (approximately up to 63 days)On the third dosing day, participants entered the ECC for a duration of 6 hours, 1 hour after receiving their third dose. Time 0 hour was considered as the time that the participant entered the ECC. Nasal congestion was measured on 0-10 centimeter VAS scale (0: no symptoms and 10: the worst possible symptoms) with low score indicates well-being and higher values indicate greater congestion. It was measured at 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300, 320, 340 and 360 minutes. The adjusted mean is provided as least square mean.
Mean Forced Expiratory Volume in 1 Second (FEV1)Day 3 of each treatment period (approximately up to 63 days)On the third dosing day, participants entered the ECC for a duration of 6 hours, 1 hour after receiving their third dose. Time 0 hour was considered as the time that the participant entered the ECC. FEV1 was measured at pre-challenge, 60, 120, 180, 240, 300 and 360 minutes.
Number of Participants With Adverse Events (AE) and Serious Adverse Events (SAE)approximately up to 63 daysAn AE was defined as any untoward medical occurrence (MO) in a participant temporally associated with the use of a medicinal product (MP), whether or not considered related to the MP and can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with its use. The SAE was any untoward MO that, at any dose, results in death, life threatening, persistent or significant disability/incapacity, results in or prolongs inpatient hospitalization, congenital abnormality or birth defect, that may not be immediately life-threatening or result in death or hospitalization but may jeopardize the participant or may require medical or surgical intervention or is associated with liver injury and impaired liver function defined as: alanine aminotransferase \>=3 times upper limit of normal (ULN), and total bilirubin \>=2 times ULN or international normalized ratio more than 1.5.

Countries

Germany

Participant flow

Recruitment details

From June-2009 to August-2009, total of 54 participants were randomized at one site in Germany.

Pre-assignment details

All participants had a diagnosis of seasonal allergic rhinitis and exhibited a moderate response to allergen challenge in the environmental challenge chamber (ECC) at Screening, defined as total nasal symptom score (TNSS) more than equal to (\>=) 6.

Participants by arm

ArmCount
Overall Study
Participants randomized to receive once daily GSK1004723 1000 µg nasal spray solution for 3 days or oral tablet of GSK835726 10 mg or oral capsule of cetirizine 10 mg or matching placebo of these investigational products as per randomization schedule in the morning of each day. Each participant dosed at the same time each day relative to Day 1. Each treatment period was separated by at least 4 days washout period and there was at least 7 days between ECC days.
54
Total54

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event2
Overall StudyInvestigator discretion1

Baseline characteristics

CharacteristicOverall Study
Age, Continuous37.9 Years
STANDARD_DEVIATION 10.92
Race/Ethnicity, Customized
White - White/Caucasian/European Heritage
54 Participants
Sex: Female, Male
Female
15 Participants
Sex: Female, Male
Male
39 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 520 / 540 / 530 / 52
other
Total, other adverse events
15 / 5253 / 5413 / 5317 / 52
serious
Total, serious adverse events
0 / 520 / 540 / 530 / 52

Outcome results

Primary

Weighted Mean TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3

On the third dosing day, participants entered the ECC for a duration of 6 hours, 1 hour after receiving their third dose. Time 0 hour was considered as the time that the participant entered the ECC. Nasal blockage, itch, sneeze and rhinorrhoea was scored on a categorical scale from 0 to 3 (0: no symptoms; 1: mild symptoms; 2: moderate symptoms; 3: severe symptoms). The total TNSS ranged from 0-12 point, with low score indicates well-being and higher score indicates more severity. Individual symptoms scores was summed at each time point (0, 20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300, 320, 340 and 360 minutes). The adjusted mean is provided as least square mean.

Time frame: Day 3 of each treatment period (approximately up to 63 days)

Population: The all subjects population was used defined as all participants who receive at least one dose of study medication. Only those participants with data available at the indicated time points were analyzed.

ArmMeasureValue (LEAST_SQUARES_MEAN)
PlaceboWeighted Mean TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 34.9 Score on a scale
GSK1004723 1000 µg Once DailyWeighted Mean TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 34.2 Score on a scale
GSK835726 10 mg Once DailyWeighted Mean TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 33.6 Score on a scale
Cetirizine 10 mg Once DailyWeighted Mean TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 33.5 Score on a scale
95% CI: [-1.2, -0.1]
95% CI: [-1.8, -0.8]
95% CI: [-1.9, -0.8]
Secondary

Mean Forced Expiratory Volume in 1 Second (FEV1)

On the third dosing day, participants entered the ECC for a duration of 6 hours, 1 hour after receiving their third dose. Time 0 hour was considered as the time that the participant entered the ECC. FEV1 was measured at pre-challenge, 60, 120, 180, 240, 300 and 360 minutes.

Time frame: Day 3 of each treatment period (approximately up to 63 days)

Population: All Subjects population. Only those participants with data available at the indicated time points were analyzed (represented by n=x,x,x,x,x in the category titles). Different participants may have been analyzed for different parameters, so the overall number of participants analyzed reflects everyone in the All Subjects population.

ArmMeasureGroupValue (MEAN)Dispersion
PlaceboMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,2 hour3.910 LitersStandard Deviation 0.7161
PlaceboMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,5 hour3.858 LitersStandard Deviation 0.7314
PlaceboMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,6 hour3.914 LitersStandard Deviation 0.7099
PlaceboMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,1 hour3.949 LitersStandard Deviation 0.7319
PlaceboMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,3 hour3.901 LitersStandard Deviation 0.7134
PlaceboMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,4 hour3.881 LitersStandard Deviation 0.7364
PlaceboMean Forced Expiratory Volume in 1 Second (FEV1)FEV1-Pre challenge3.908 LitersStandard Deviation 0.7051
GSK1004723 1000 µg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,6 hour3.877 LitersStandard Deviation 0.6381
GSK1004723 1000 µg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,4 hour3.913 LitersStandard Deviation 0.7083
GSK1004723 1000 µg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,5 hour3.890 LitersStandard Deviation 0.6868
GSK1004723 1000 µg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1-Pre challenge3.935 LitersStandard Deviation 0.6515
GSK1004723 1000 µg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,2 hour3.948 LitersStandard Deviation 0.6444
GSK1004723 1000 µg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,3 hour3.938 LitersStandard Deviation 0.6774
GSK1004723 1000 µg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,1 hour3.959 LitersStandard Deviation 0.6804
GSK835726 10 mg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,5 hour3.890 LitersStandard Deviation 0.6954
GSK835726 10 mg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,6 hour3.887 LitersStandard Deviation 0.6894
GSK835726 10 mg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1-Pre challenge3.924 LitersStandard Deviation 0.7055
GSK835726 10 mg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,2 hour3.936 LitersStandard Deviation 0.7014
GSK835726 10 mg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,3 hour3.918 LitersStandard Deviation 0.6941
GSK835726 10 mg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,4 hour3.903 LitersStandard Deviation 0.7067
GSK835726 10 mg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,1 hour3.948 LitersStandard Deviation 0.7125
Cetirizine 10 mg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,4 hour3.903 LitersStandard Deviation 0.7124
Cetirizine 10 mg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1-Pre challenge3.932 LitersStandard Deviation 0.6654
Cetirizine 10 mg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,1 hour3.958 LitersStandard Deviation 0.6865
Cetirizine 10 mg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,2 hour3.925 LitersStandard Deviation 0.6829
Cetirizine 10 mg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,3 hour3.899 LitersStandard Deviation 0.7179
Cetirizine 10 mg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,5 hour3.858 LitersStandard Deviation 0.7406
Cetirizine 10 mg Once DailyMean Forced Expiratory Volume in 1 Second (FEV1)FEV1,6 hour3.868 LitersStandard Deviation 0.7231
Secondary

Number of Participants With Adverse Events (AE) and Serious Adverse Events (SAE)

An AE was defined as any untoward medical occurrence (MO) in a participant temporally associated with the use of a medicinal product (MP), whether or not considered related to the MP and can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with its use. The SAE was any untoward MO that, at any dose, results in death, life threatening, persistent or significant disability/incapacity, results in or prolongs inpatient hospitalization, congenital abnormality or birth defect, that may not be immediately life-threatening or result in death or hospitalization but may jeopardize the participant or may require medical or surgical intervention or is associated with liver injury and impaired liver function defined as: alanine aminotransferase \>=3 times upper limit of normal (ULN), and total bilirubin \>=2 times ULN or international normalized ratio more than 1.5.

Time frame: approximately up to 63 days

Population: All Subjects population.

ArmMeasureGroupValue (NUMBER)
PlaceboNumber of Participants With Adverse Events (AE) and Serious Adverse Events (SAE)Any AE15 Participants
PlaceboNumber of Participants With Adverse Events (AE) and Serious Adverse Events (SAE)Any SAE0 Participants
GSK1004723 1000 µg Once DailyNumber of Participants With Adverse Events (AE) and Serious Adverse Events (SAE)Any SAE0 Participants
GSK1004723 1000 µg Once DailyNumber of Participants With Adverse Events (AE) and Serious Adverse Events (SAE)Any AE53 Participants
GSK835726 10 mg Once DailyNumber of Participants With Adverse Events (AE) and Serious Adverse Events (SAE)Any AE13 Participants
GSK835726 10 mg Once DailyNumber of Participants With Adverse Events (AE) and Serious Adverse Events (SAE)Any SAE0 Participants
Cetirizine 10 mg Once DailyNumber of Participants With Adverse Events (AE) and Serious Adverse Events (SAE)Any AE17 Participants
Cetirizine 10 mg Once DailyNumber of Participants With Adverse Events (AE) and Serious Adverse Events (SAE)Any SAE0 Participants
Secondary

Weighted Mean Nasal Congestion VAS 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3

On the third dosing day, participants entered the ECC for a duration of 6 hours, 1 hour after receiving their third dose. Time 0 hour was considered as the time that the participant entered the ECC. Nasal congestion was measured on 0-10 centimeter VAS scale (0: no symptoms and 10: the worst possible symptoms) with low score indicates well-being and higher values indicate greater congestion. It was measured at 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300, 320, 340 and 360 minutes. The adjusted mean is provided as least square mean.

Time frame: Day 3 of each treatment period (approximately up to 63 days)

Population: All Subjects population. Only those participants with data available at the indicated time points were analyzed.

ArmMeasureValue (LEAST_SQUARES_MEAN)
PlaceboWeighted Mean Nasal Congestion VAS 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 33.97 Score on a scale
GSK1004723 1000 µg Once DailyWeighted Mean Nasal Congestion VAS 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 34.29 Score on a scale
GSK835726 10 mg Once DailyWeighted Mean Nasal Congestion VAS 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 32.92 Score on a scale
Cetirizine 10 mg Once DailyWeighted Mean Nasal Congestion VAS 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 32.90 Score on a scale
95% CI: [-0.28, 0.93]
95% CI: [-1.65, -0.45]
95% CI: [-1.68, -0.46]
Secondary

Weighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3

On the third dosing day, participants entered the ECC for a duration of 6 hours, 1 hour after receiving their third dose. Time 0 hour was considered as the time that the participant entered the ECC. Nasal blockage, itch, sneeze and rhinorrhoea was scored on a categorical scale from 0 to 3 (0: no symptoms; 1: mild symptoms; 2: moderate symptoms; 3: severe symptoms). The total TNSS ranged from 0-12 point, with low score indicates well-being and higher score indicates more severity. Individual symptoms scores was summed to produce the TNSS at each time point (0, 20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300, 320, 340 and 360 minutes). The adjusted mean is provided as least square mean.

Time frame: Day 3 of each treatment period (approximately up to 63 days)

Population: All Subjects population. Only those participants with data available at the indicated time points were analyzed.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
PlaceboWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Nasal Blockage1.5 Score on a scale
PlaceboWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Rhinorrhoea1.5 Score on a scale
PlaceboWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Nasal Itching1.1 Score on a scale
PlaceboWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Sneezing0.8 Score on a scale
GSK1004723 1000 µg Once DailyWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Sneezing0.4 Score on a scale
GSK1004723 1000 µg Once DailyWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Nasal Itching0.9 Score on a scale
GSK1004723 1000 µg Once DailyWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Rhinorrhoea1.3 Score on a scale
GSK1004723 1000 µg Once DailyWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Nasal Blockage1.7 Score on a scale
GSK835726 10 mg Once DailyWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Nasal Itching0.8 Score on a scale
GSK835726 10 mg Once DailyWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Rhinorrhoea1.1 Score on a scale
GSK835726 10 mg Once DailyWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Sneezing0.5 Score on a scale
GSK835726 10 mg Once DailyWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Nasal Blockage1.3 Score on a scale
Cetirizine 10 mg Once DailyWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Nasal Blockage1.3 Score on a scale
Cetirizine 10 mg Once DailyWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Rhinorrhoea1.0 Score on a scale
Cetirizine 10 mg Once DailyWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Sneezing0.5 Score on a scale
Cetirizine 10 mg Once DailyWeighted Mean of the Individual Components of TNSS (Sneeze, Itch, Rhinorrhoea and Nasal Blockage) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3Nasal Itching0.8 Score on a scale
95% CI: [0, 0.3]
95% CI: [-0.4, -0.1]
95% CI: [-0.4, -0.1]
95% CI: [-0.4, -0.1]
95% CI: [-0.6, -0.2]
95% CI: [-0.6, -0.3]
95% CI: [-0.4, -0.1]
95% CI: [-0.5, -0.2]
95% CI: [-0.5, -0.2]
95% CI: [-0.5, -0.2]
95% CI: [-0.4, -0.2]
95% CI: [-0.5, -0.2]
Secondary

Weighted Mean Wet Tissue Weight (as a Surrogate Marker of Nasal Secretion) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 3

On the third dosing day, participants entered the ECC for a duration of 6 hours, 1 hour after receiving their third dose. Time 0 hour was considered as the time that the participant entered the ECC. Wet tissue weight assessments was measured as a surrogate marker of nasal secretion at 60, 120, 180, 240, 300 and 360 minutes. The adjusted mean is provided as least square mean.

Time frame: Day 3 of each treatment period (approximately up to 63 days)

Population: All Subjects population. Only those participants with data available at the indicated time points were analyzed.

ArmMeasureValue (LEAST_SQUARES_MEAN)
PlaceboWeighted Mean Wet Tissue Weight (as a Surrogate Marker of Nasal Secretion) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 36.251 Grams
GSK1004723 1000 µg Once DailyWeighted Mean Wet Tissue Weight (as a Surrogate Marker of Nasal Secretion) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 35.210 Grams
GSK835726 10 mg Once DailyWeighted Mean Wet Tissue Weight (as a Surrogate Marker of Nasal Secretion) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 34.491 Grams
Cetirizine 10 mg Once DailyWeighted Mean Wet Tissue Weight (as a Surrogate Marker of Nasal Secretion) 1-6 Hours Post Start of Allergen Challenge (2-7 Hours Post-dose) on Day 33.459 Grams
95% CI: [-1.87, -0.212]
95% CI: [-2.584, -0.936]
95% CI: [-3.626, -1.957]

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