Celgene Corp (NASDAQ:CELG) was unchanged in Friday’s after-market and the biotech company confirmed the U.S. Food and Drug Administration has approved the company’s psoriatic arthritis treatment, the first of its kind in this country.

The drug will be marketed commercially as Otezla. According to the company, the drug works differently than other approved therapies through the intracellular inhibition of phosphodiesterase 4, an enzyme that plays a role in joint and ligament inflammations.

Celgene Corp (NASDAQ:CELG) shares were steady in late Friday trading at $144.40 each, earlier slipping 3.8% during today’s regular session, sliding $5.61 a share.

Lamar Advertising Company (NASDAQ:LAMR), an owner and operator of outdoor advertising and logo sign displays, reports that its wholly owned subsidiary, Lamar Media Corp., intends to redeem in full all $400 million in aggregate principal amount of its 7 7/8% Senior Subordinated Notes due 2018.

Lamar Media expects the notes to be redeemed April 21, 2014, at a redemption price equal to 103.938% of the aggregate principal amount of outstanding Notes, plus accrued and unpaid interest to the Redemption Date.  Shares of LAMR closed the day’s regular session at $52.61 and are unmoved after-hours.

Friedman Industries Inc (NYSEMKT:FRD) Friday declared a cash dividend of $0.02 per share, payable May 23 to shareholders of record on April 25.  The payout is unchanged from the prior quarter.

Shares of the steel and steel pipe manufacturer were unchanged in after-hours trading at $8.60 a share, earlier finishing today’s regular session with a 0.4% decline, down 3 cents.