Sommers Ex Rel. Situated v. UPMC  ·  2018-05-02  ·  Superior Court of Pennsylvania  ·  2 pin-cites  ·  pin 155 Cal. Rptr. 3d at 268

"Before judgment, a class should be decertified 'only where it is clear there exist changed circumstances making continued class action treatment improper.' A fortiori , a similar showing must be made to warrant decertification after a decision on the merits."

Clark v. PFIZER INC.  ·  2010-01-19  ·  Superior Court of Pennsylvania  ·  pin 56 Cal. Rptr. 3d at 861

“Before judgment, a class should be decertified ‘only where it is clear there exist changed circumstances making continued class action treatment improper.’ A fortiori, a similar showing must be made to warrant decerti-fication after a decision on the merits.”