 FLORHAM PARK, N.J., Nov. 13, 2020 GLOBE NEWSWIRE -- Phathom Pharmaceuticals, Inc. Nasdaq: PHAT, a late clinical-stage biopharmaceutical company focused on developing and commercializing novel treatments for gastrointestinal diseases, announced today that members of the management team will participate in a fireside chat at the Jefferies Virtual London Healthcare Conference on Wednesday, November 18, 2020 at 3:15 p.m. GMT 10:15 a.m. ET. 