.BRIEF-U.S. FDA approves addition of moderate to severe fingernail psoriasis data to Abbvie's humira March 30, 2017 07:28 AM ET Reuters . BRIEF- U.S. FDA approves addition of moderate to severe fingernail psoriasis data to Abbvie's humira. *U.S. FDA approves addition of moderate to severe fingernail psoriasis data to Abbvie's Humira prescribing information. *U.S. FDA approves addition of moderate to severe fingernail psoriasis data to Abbvie's Humira prescribing information. Read more