NORTH AUGUSTA, S.C., October 02, 2023 AmbioPharm, a worldwide leader in peptide active pharmaceutical ingredient (API) contract development and manufacturing organization (CDMO) services, announced the appointment of industry veteran Brian Gregg as Chief Executive Officer, today. Mr. Gregg, who has more than 30 years of experience in the peptide CDMO industry, succeeds Tim Nieters, who will be stepping down after 7 years with the company.