Send us Fan Mail Petition · Urgent Call for U.S. Children to Have Access to an FDA-Approved Low-Dose Atropine - United States · Change.org About Patrick Johnson, Ph.D. Patrick Johnson joined Sydnexis as Chief Business Officer in 2017. He was instrumental in the Series A and B financings at Sydnexis as well as the corporate alliance with Santen Pharmaceuticals that was established in 2021. Prior to his role at Sydnexis, Patrick was the Vice President of Corporate and Business Developmen...