** Papa John's PZZA.O shares fall 18.5% to $39.35
** Reuters reports that Apollo Global APO.N has withdrawn its offer to take PZZA private at $64 a share, citing two people familiar with the deal
** APO pulled offer about a week ago, as consumers tighten spending and the quick-service restaurant industry starts to stumble
** PZZA and APO did not immediately respond to requests for comment
** APO submitted bid for PZZA in October
** Up to last close, PZZA had risen over 17% YTD
(Reporting by Juby Babu in Mexico City)
((Juby.Babu@thomsonreuters.com;))