...the last time one of these lawsuits was brought against them it was dismissed with prejudice against the law firm who initiated it.
But that was before the company took two years to file an NDA that should have taken a year, and before that application was rejected for a problem that the company should have been taking care of, and making sure everything was right, before they even files. There is really no excuse for not having manufacturing worked out in the YEARS they had before the filing.
And the question of multiple suits- usually at some point a judge will consolidate all the class actions into one and the attorneys will split the case proceeds.