I agree with the original study’s author. There should be a larger study done with a greater number of insulin sources tested. Most importantly, for the sake of patients, the follow-on study should have no connection with any organization or actors with a vested interest in the outcome. Letting Pharma organize and run another study will have very predictable results that I, as a person who needs this medicine to live, will doubt.
I think pulling random vials and pen reservoirs off of pharmacy shelves and then tested by an independent lab should be done on an ongoing basis. This post-production surveillance should be done for all medications. Is the FDA doing this in some form already?