A lawsuit between Vanderbilt University and workers accusing it of mishandling their retirement benefits will be paused while the parties seek to resolve their differences through mediation.

The parties’ motion to stay proceedings pending private mediation was granted Dec. 19 by Chief Judge Waverly D. Crenshaw Jr. of the U.S. District Court for the Middle District of Tennessee.

Crenshaw, however, didn’t change certain dates and deadlines, including the trial date, which is set for November 2019.

The parties sought permission last week to pause a class action challenging the fees and investment options in the school’s $3.4 billion retirement plan....