Efficacy and Safety of GSP 301 Nasal Spray in Children (Aged 6 to Under 12 Years) With Seasonal Allergic Rhinitis (SAR)

Overview

Study to evaluate the efficacy, safety and tolerability of GSP 301 nasal spray (NS) compared with placebo NS in pediatric subjects (aged 6 to under 12 years) with Seasonal Allergic Rhinitis (SAR).

Full Title of Study: “A Double-Blind, Randomized, Parallel-Group Study to Evaluate the Efficacy, Safety and Tolerability of Fixed Dose Combination GSP 301 Nasal Spray Compared With Placebo Nasal Spray in Pediatric Subjects (Aged 6 to Under 12 Years) With Seasonal Allergic Rhinitis (SAR)”

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Parallel Assignment
    • Primary Purpose: Treatment
    • Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
  • Study Primary Completion Date: November 14, 2018

Interventions

  • Drug: GSP 301 NS
    • 1 spray in each nostril twice daily for 14 days
  • Drug: GSP 301 Placebo NS
    • 1 spray in each nostril twice daily for 14 days

Arms, Groups and Cohorts

  • Experimental: GSP 301 NS
    • Fixed dose combination of olopatadine hydrochloride 665 μg and mometasone furoate 25 μg NS
  • Placebo Comparator: GSP 301 Placebo NS
    • GSP 301 Placebo nasal spray

Clinical Trial Outcome Measures

Primary Measures

  • Change From Baseline in Average AM and PM Subject-reported 12-hour Reflective Total Nasal Symptom Score ( rTNSS) Over the 14-day Treatment Period
    • Time Frame: Baseline and day 14
    • The Reflective Total Nasal Symptom Score (rTNSS) was assessed by 12-hour reflective scoring of the severity of four nasal symptoms (rhinorrhea, sneezing, nasal congestion, nasal itching). Scores ranged from 0 (no signs/symptoms evident) to 3 (severe signs/symptoms that is hard to tolerate, causes interference with activities of daily living and/or sleeping). Each of these four nasal symptoms (rhinorrhea, sneezing, nasal congestion, nasal itching) of the rTNSS is rated on a scale from 0 to 3 (0 = none, 1 = mild, 2 = moderate, 3 = severe). The four nasal symptoms of the rTNSS is summed. The total score of the rTNSS ranged from 0 to 12.

Secondary Measures

  • Change From Baseline in Average AM and PM Subject-reported 12-hour Instantaneous Total Nasal Symptom Score (iTNSS) Over the 14-day Treatment Period.
    • Time Frame: Baseline and day 14
    • The instantaneous Total Nasal Symptom Score (iTNSS) was assessed by instantaneous (ie, an evaluation of the symptom severity just before taking study medication [within 10 minutes]) of four nasal symptoms (rhinorrhea, sneezing, nasal congestion, nasal itching). Scores ranged from 0 (no signs/symptoms evident) to 3 (severe signs/symptoms that is hard to tolerate, causes interference with activities of daily living and/or sleeping). Each of these four nasal symptoms (rhinorrhea, sneezing, nasal congestion, nasal itching) of the iTNSS is rated on a scale from 0 to 3 (0 = none, 1 = mild, 2 = moderate, 3 = severe). The four nasal symptoms of the iTNSS is summed. The total score of the iTNSS ranged from 0 to 12.
  • Change From Baseline in the Overall Pediatric Rhinoconjunctivitis Quality of Life Questionnaire (PRQLQ) Score on Day 15 (Visit 4)
    • Time Frame: Baseline and day 15
    • The PRQLQ is a validated, disease-specific, quality-of-life (QOL) questionnaire developed to measure the physical, emotional, and social impairments that are experienced by children (aged ≥6 to <12 years) with rhinoconjunctivitis. The PRQLQ has 23 questions in 5 domains (nose symptoms, eye symptoms, practical problems, activity limitation and other symptoms). Subjects recall how they have been during the previous week and respond to each question on a 7-point scale with scores ranging from 6 (extremely bothered), 5 (very bothered), 4 (quite bothered), 3 (somewhat bothered), 2 (bothered a bit), 1 (hardly bothered at all), 0 (not bothered). The Overall PRQLQ score is the mean of all 23 subject-reported responses. The Overall PRQLQ score range from 0 to 6 where 0 represents no impairment and 6 represents maximum impairment.
  • Change From Baseline in Average AM and PM Subject-reported 12-hour Reflective Total Ocular Symptom Score (rTOSS) Over the 14-day Treatment Period.
    • Time Frame: Baseline and day 14
    • The Total Ocular Symptom Score (TOSS) will be calculated using the 3 eye-related non-nasal symptoms: itching/burning eyes, tearing/watering eyes, and redness of eyes. The subject will assess and report his/her non-nasal symptoms twice (AM and PM assessments). Scores ranged from 0 (No sign/symptom evident), 1 (Sign/symptom clearly present but minimal awareness; easily tolerated), 2 (Definite awareness of sign/symptom that is bothersome but tolerable) and 3 (Sign/symptom is hard to tolerate; causes interference with activities of daily living and/or sleeping). The Total Ocular Symptom Score (TOSS) ranged from 0 to 9.

Participating in This Clinical Trial

Inclusion Criteria

1. Male and female subjects aged ≥6 to <12 years 2. Clinical history of SAR (at least 2 years) with exacerbations during the study season for the relevant seasonal allergen (e.g., tree/grass pollen) 3. Demonstrated sensitivity to at least 1 seasonal allergen through positive skin prick test within 12 months prior to screening 4. A 12-hour rTNSS value ≥6 out of a possible 12 for the morning assessment at screening 5. Signed informed consent/assent form (subject and parent/caregiver/legal guardian) Exclusion Criteria:

1. Females of childbearing potential or pregnant 2. Plans to travel outside the known pollen area for the investigational site for 24 hours or longer during the last 7 days of the run-in period. 3. History of anaphylaxis and/or other severe local reaction(s) to skin testing 4. History and evidence of acute or significant chronic sinusitis or chronic purulent post nasal drip 5. Subjects with an active pulmonary disorder or infection. 6. Subjects with posterior subcapsular cataracts or glaucoma

Gender Eligibility: All

Minimum Age: 6 Years

Maximum Age: 11 Years

Are Healthy Volunteers Accepted: No

Investigator Details

  • Lead Sponsor
    • Glenmark Specialty S.A.
  • Provider of Information About this Clinical Study
    • Sponsor
  • Overall Official(s)
    • Sudeesh Tantry, PhD, Study Director, Glenmark Pharmaceuticals Ltd.

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