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Efficacy and Safety of Fixed Dose Combination GSP 301 Nasal Spray (NS) in the Treatment of Seasonal Allergic Rhinitis (SAR)

A Double-Blind, Randomized, Parallel-Group, Comparative Study to Evaluate the Efficacy, Safety and Tolerability of a Fixed Dose Combination GSP 301 Nasal Spray (NS) Compared With Placebo Nasal Spray and Individual Monotherapy Formulations (Comparators) in Subjects (Aged 12 Years and Older) With Seasonal Allergic Rhinitis (SAR)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02631551
Acronym
GSP 301-301
Enrollment
1180
Registered
2015-12-16
Start date
2016-03-31
Completion date
2016-07-31
Last updated
2018-09-25

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

Conditions

Seasonal Allergic Rhinitis

Keywords

Seasonal Allergic Rhinitis

Brief summary

Study to evaluate the efficacy and safety of GSP 301 NS compared to placebo NS and to individual monotherapies (comparators) as well as the efficacy of these monotherapies (comparators) versus placebo NS over 14 days of study treatment

Interventions

FDC of olopatadine HCl and mometasone furoate: 2 sprays in each nostril twice daily for 14 days

DRUGOlopatadine HCl NS

2 sprays in each nostril twice daily for 14 days

DRUGMometasone furoate NS

2 sprays in each nostril twice daily for 14 days

2 sprays in each nostril twice daily for 14 days

Sponsors

Glenmark Specialty S.A.
Lead SponsorINDUSTRY

Study design

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

Eligibility

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

Inclusion criteria

1. Aged 12 years and older inclusive of either sex. 2. Documented clinical history of SAR (for at least 2 years preceding the Screening Visit \[Visit 1\]) with exacerbations (clinical evidence of active symptoms) during the spring allergy season (tree/grass pollen) 3. A 12-hour reflective TNSS ≥ 8 out of a possible 12 and a congestion score of ≥ 2 for the AM assessment at the Screening Visit (Visit 1).

Exclusion criteria

1. Pregnant or lactating women. 2. Plans to travel outside the known pollen area for the investigative site for \> 24 hours during the last 7 days of run in period. 3. History of anaphylaxis and/or other severe local reaction(s) to skin testing. 4. History of positive test for HIV, Hepatitis B or Hepatitis C infection. 5. Documented evidence of acute or significant chronic sinusitis or chronic purulent postnasal drip. 6. Subjects with an active pulmonary disorder or infection. 7. Subjects with posterior subcapsular cataracts or glaucoma

Design outcomes

Primary

MeasureTime frameDescription
Change in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptoms Score (rTNSS) From Baseline to End of Treatment.14 daysReflective Total Nasal Symptom Score (rTNSS) was calculated as the sum of 12-hour reflective scoring of the severity of four nasal symptoms (nasal congestion, rhinorrhea, nasal itching, sneezing). Subjects responded on a 4-point severity scale with scores ranging from 0 (no signs/symptoms evident) to 3 (severe signs/symptoms that is hard to tolerate). The rTNSS was calculated as the sum of the subject-reported severity scores for nasal symptoms, and value ranged from 0 (no signs/symptoms evident) to 12 (severe signs/symptoms that is hard to tolerate).

Countries

United States

Participant flow

Participants by arm

ArmCount
GSP 301 NS
2 sprays in each nostril twice daily for 14 days
302
Olopatadine HCl NS
2 sprays in each nostril twice daily for 14 days
297
Mometasone Furoate NS
2 sprays in each nostril twice daily for 14 days
294
GSP 301 Placebo NS
2 sprays in each nostril twice daily for 14 days
287
Total1,180

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event1240
Overall StudyLack of Efficacy0010
Overall StudyLost to Follow-up1203
Overall StudyNon-compliance with study drug1000
Overall StudyNon-compliance with study procedures0011
Overall StudyOther, specific reasons not collected5722
Overall StudyProtocol deviation3630
Overall StudyWithdrawal by Subject2205

Baseline characteristics

CharacteristicGSP 301 NSTotalGSP 301 Placebo NSMometasone Furoate NSOlopatadine HCl NS
Age, Continuous39.5 years
STANDARD_DEVIATION 15.4
39.3 years
STANDARD_DEVIATION 15.3
39.4 years
STANDARD_DEVIATION 14.8
38.7 years
STANDARD_DEVIATION 16.3
39.6 years
STANDARD_DEVIATION 14.9
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants3 Participants0 Participants1 Participants2 Participants
Race (NIH/OMB)
Asian
2 Participants20 Participants7 Participants7 Participants4 Participants
Race (NIH/OMB)
Black or African American
56 Participants230 Participants48 Participants59 Participants67 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants4 Participants1 Participants0 Participants2 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants8 Participants0 Participants3 Participants3 Participants
Race (NIH/OMB)
White
241 Participants915 Participants231 Participants224 Participants219 Participants
Sex: Female, Male
Female
201 Participants762 Participants182 Participants198 Participants181 Participants
Sex: Female, Male
Male
101 Participants418 Participants105 Participants96 Participants116 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 / 3020 / 2970 / 2940 / 287
other
Total, other adverse events
0 / 3020 / 2970 / 2940 / 287
serious
Total, serious adverse events
1 / 3020 / 2970 / 2940 / 287

Outcome results

Primary

Change in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptoms Score (rTNSS) From Baseline to End of Treatment.

Reflective Total Nasal Symptom Score (rTNSS) was calculated as the sum of 12-hour reflective scoring of the severity of four nasal symptoms (nasal congestion, rhinorrhea, nasal itching, sneezing). Subjects responded on a 4-point severity scale with scores ranging from 0 (no signs/symptoms evident) to 3 (severe signs/symptoms that is hard to tolerate). The rTNSS was calculated as the sum of the subject-reported severity scores for nasal symptoms, and value ranged from 0 (no signs/symptoms evident) to 12 (severe signs/symptoms that is hard to tolerate).

Time frame: 14 days

Population: The Full Analysis Set (FAS) was defined as all subjects who were randomized and received at least one dose of investigational product and had at least one post-baseline primary efficacy assessment. This was the primary analysis set for efficacy analyses.

ArmMeasureGroupValue (MEAN)Dispersion
GSP 301 NSChange in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptoms Score (rTNSS) From Baseline to End of Treatment.Baseline10.1 units on a scaleStandard Deviation 1.2
GSP 301 NSChange in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptoms Score (rTNSS) From Baseline to End of Treatment.Change from baseline to end of treatment-3.6 units on a scaleStandard Deviation 3.2
Olopatadine HCl NSChange in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptoms Score (rTNSS) From Baseline to End of Treatment.Change from baseline to end of treatment-3.2 units on a scaleStandard Deviation 3.1
Olopatadine HCl NSChange in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptoms Score (rTNSS) From Baseline to End of Treatment.Baseline10.3 units on a scaleStandard Deviation 1.3
Mometasone Furoate NSChange in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptoms Score (rTNSS) From Baseline to End of Treatment.Baseline10.2 units on a scaleStandard Deviation 1.2
Mometasone Furoate NSChange in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptoms Score (rTNSS) From Baseline to End of Treatment.Change from baseline to end of treatment-3.5 units on a scaleStandard Deviation 3.3
GSP 301 Placebo NSChange in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptoms Score (rTNSS) From Baseline to End of Treatment.Baseline10.2 units on a scaleStandard Deviation 1.2
GSP 301 Placebo NSChange in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptoms Score (rTNSS) From Baseline to End of Treatment.Change from baseline to end of treatment-2.8 units on a scaleStandard Deviation 3.2
Comparison: GSP 301 NS vs GSP 301 placebo NS comparison for rTNSS was tested at 0.05 significance level.p-value: <0.0001Mixed Models Analysis
Comparison: GSP 301 NS vs Olopatadine HCl NS comparison for rTNSS was tested at 0.05 significance level.p-value: 0.0029Mixed Models Analysis
Comparison: GSP 301 NS vs Mometasone furoate NS comparison for rTNSS was tested at 0.05 significance level.p-value: 0.0587Mixed Models Analysis
Comparison: Olopatadine HCl NS vs GSP 301 Placebo NS comparison for rTNSS was tested at 0.05 significance level.p-value: 0.0755Mixed Models Analysis
Comparison: Mometasone furoate NS vs GSP 301 Placebo NS comparison for rTNSS was tested at 0.05 significance level.p-value: 0.0043Mixed Models Analysis

Source: ClinicalTrials.gov · Data processed: Apr 16, 2026