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Table 2 Allergen used for each participant and the concentration at which they qualified during the screening visit

From: The Allergic Rhinitis – Clinical Investigator Collaborative (AR-CIC): nasal allergen challenge protocol optimization for studying AR pathophysiology and evaluating novel therapies

QAC Study CAC Study
  Study ID Allergen Max. Allergen Conc.   Study ID Allergen Max. Allergen Conc.
Queen’s University A046 109 Ragweed 1:128 Queen’s University A083 117 Ragweed 1:8
A017 110 Ragweed 1:128 A015 114 Ragweed 1:128
A096 112 Ragweed 1:128 A053 118 Ragweed 1:32
A050 113 Ragweed 1:128 A044 119 Ragweed 1:32
A081 105 Ragweed 1:32 A079 116 Ragweed 1:8
A033 104 Ragweed 1:512 A056 115 Ragweed 1:2
A019 106 Ragweed 1:32 A016 125 Ragweed 1:32
A001 108 Ragweed 1:2048 A060 124 Ragweed 1:128
A066 103 Ragweed 1:128 A083 129 Ragweed 1:32
A090 102 Ragweed 1:512 A048 131 Ragweed 1:32
Université Laval A070 301 Std D. farinae 1:32 A002 123 Non-Allergic 1:2
A095 302 Grass mix (5) 1:32 A061 126 Non-Allergic 1:2
A008 303 Grass mix (5) 1:32 A088 127 Non-Allergic 1:2
A038 304 D. pteronyssinus 1:32 A085 133 Non-Allergic 1:2
A073 305 Std D. farinae 1:512     
McMaster University AR001 D. pteronyssinus 1:32     
AR002 Grass 1:2048     
AR003 Cat hair 1:32     
University of Alberta A275 404 Grass mix 1:2     
A749 405 D. farinae 1:32     
  1. Non-allergic participants in the CAC study did not meet the qualifying criteria even after challenge with the highest concentration (1:2). During the NAC visit, the 1:2 concentration was used once again.