I had signed up for a trial of one of these drugs. Having grown up in the 80s with a severe peanut allergy that required the use of the epipen more than a few times I was keen for anything that could help, even just something that would lessen the reaction so maybe I could choke down some benadryl rather than stabbing myself with that ~2 gauge (hyperbole) epipen that now costs a fortune.
First thing they did during the trial was give me two peanut tests, skin prick and blood test. Both came back negative despite positive results decades earlier as a child.
I would have never thought to get tested again on my own. Not being allergic has made such a huge difference in my life - I was always flippant about my allergy and had developed good safeguards to protect myself. But the amount of stress is caused me was amazing to have lifted. Hope that these drugs can bring that to others (or just get tested again and maybe you're one of the lucky ones!)