An important note missing in the article, the FDA approved this with the Fast Track designation [1]. I'm still looking for the safety and efficacy study done.

An important note missing in the article, the FDA approved this with the Fast Track designation [1]. I'm still looking for the safety and efficacy study done. I also haven't yet found the justification for fast tracking this. An alternative to an epipen injection seems reasonable, but why rush it through when we already have the epipen? [1] https://www.fda.gov/news-events/press-announcements/fda-approves-first-nasal-spray-treatment-anaphylaxis https://www.fda.gov/news-events/press-announcements/fda-appr...