Evaluating the Efficacy of Ragweed-SPIRE Following Exposure to Ragweed Allergen in an Environmental Exposure Chamber
A Double-Blind, Randomised, Placebo-Controlled Study to Evaluate Three Dose Regimens of Ragweed-SPIRE in Ragweed Allergic Subjects Following Challenge With Ragweed Allergen in an Environmental Exposure Chamber
1 other identifier
interventional
280
1 country
5
Brief Summary
The purpose of this study is to determine whether Ragweed-SPIRE is safe and effective at reducing allergy symptoms in people who suffer from allergy to Ragweed pollen
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Jan 2014
Shorter than P25 for phase_2
5 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2014
CompletedFirst Submitted
Initial submission to the registry
February 3, 2014
CompletedFirst Posted
Study publicly available on registry
February 13, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
October 1, 2014
CompletedMarch 20, 2015
March 1, 2015
9 months
February 3, 2014
March 19, 2015
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change from Baseline in mean Total Rhinoconjunctivitis Symptom Score (TRSS)
Between Baseline and approximately 25 weeks after randomisation
Secondary Outcomes (4)
Change from baseline in mean Total Rhinoconjunctivitis Symptom Score (TRSS) - all timepoints
Between Baseline and approximately 25 weeks after randomisation
Change from Baseline in mean Total Nasal Symptom Score (TNSS)
Aproximately 25 weeks after randomisation
Change from Baseline in mean Total Non Nasal Symptom Scores (TNNSS)
Approximately 25 weeks after randomisation
Number of Participants with Adverse Events as a Measure of Safety and tolerability
Approximately 28 weeks
Study Arms (4)
Ragweed-SPIRE 1
EXPERIMENTALRagweed SPIRE regimen 1 given 2 weeks apart
Ragweed-SPIRE 2
EXPERIMENTALRagweed-SPIRE regimen 2 given 2 weeks apart
Ragweed-SPIRE 3
EXPERIMENTALRagweed-SPIRE regimen 3 given 2 weeks apart
Placebo
PLACEBO COMPARATORPlacebo given 2 weeks apart
Interventions
Eligibility Criteria
You may qualify if:
- Male or female, aged 18-65 years.
- Reliable history consistent with moderate to severe rhinoconjunctivitis on exposure to ragweed for at least the previous two seasons.
- Minimum qualifying rhinoconjunctivitis symptom scores
- Ragweed-specific Immunoglobulin E (IgE) \> 0.70 kU/L.
You may not qualify if:
- Subjects with a history of ragweed pollen induced asthma
- A history of anaphylaxis to ragweed allergen.
- FEV1 \< 80 % of predicted.
- Subjects who cannot tolerate Baseline Challenge in the EEC.
- Subjects for whom administration of epinephrine is contraindicated (e.g. subjects with acute or chronic symptomatic coronary heart disease or severe hypertension).
- History of immunopathological diseases (e.g. multiple sclerosis) that in the opinion of the Investigator or the Sponsor could interfere with the results obtained from the study.
- A history of severe drug allergy, severe angioedema or anaphylactic reaction to food.
- A history of any significant disease or disorder (e.g. cardiovascular, pulmonary, gastrointestinal, liver, renal, neurological, musculoskeletal, endocrine, metabolic, neoplastic/malignant, psychiatric, major physical impairment)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Circassia Limitedlead
- Adiga Life Sciences, Inc.collaborator
Study Sites (5)
Kanata Allergy Services
Kanata, Ontario, K2L 3C8, Canada
KGK Synergize Inc
London, Ontario, N6A 5R8, Canada
Inflamax Research
Mississauga, Ontario, L8P 0A1, Canada
Taunton Health Centre
Oshawa, Ontario, L1H 7K4, Canada
Windsor Allergy Asthma Associates
Windsor, Ontario, N8X 2G1, Canada
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Piyush Patel, MD
Inflamax Research
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 3, 2014
First Posted
February 13, 2014
Study Start
January 1, 2014
Primary Completion
October 1, 2014
Study Completion
October 1, 2014
Last Updated
March 20, 2015
Record last verified: 2015-03