The first bellwether trial in Philadelphia’s mass tort over allegedly defective inferior vena cava filters is expected to begin next week. The trial comes as neither side has emerged as a clear winner in the wake of several bellwether trials in related litigation outside Pennsylvania.

Jury selection is set to begin Friday in Reed-Brown v. Rex Medical with Philadelphia Court of Common Pleas Judge Michael Erdos presiding over the case. No date has been set yet for the start of trial, but openings are expected to begin next week.