Governor Greg Gianforte, who has already authorized a bill to ban gender-affirming treatments for transgender minors this year, has until Sunday to sign or veto the new legislation, Senate Bill 458, or return it to the legislature for amendments. U.S. FDA approves Krystal Biotech's skin-disorder gene therapy The U.S. Food and Drug Administration on Friday approved Krystal Biotech Inc's first-of-its kind topical gene therapy for patients with a genetic skin disorder, sending its shares up 7% in afternoon trading.