Exhibit 10.5 CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY […***…], HAS BEEN OMITTED BECAUSE ARTARA THERAPEUTICS, INC. HAS DETERMINED THE INFORMATION (I) IS NOT MATERIAL AND (II) WOULD LIKELY CAUSE COMPETITIVE HARM TO ARTARA THERAPEUTICS, INC. IF PUBLICLY DISCLOSED. SPONSORED RESEARCH AND LICENSE AGREEMENT This Sponsored Research and License Agreement (this "Agreement") is entered into on November 28, 2018 (the "Effective Date"), by and between ArTara, Inc. located at 1 Little West 12t h Street, New York, NY 10014 ("ArTara"), and The University of Iowa, located at c/o Division of Sponsored Programs, 2 Gilmore Hall, Iowa City, IA 52242 ("University"). ArTara and University may individually be referred to herein as a "Party," and collectively as "Parties." WI T N E S S E T H: WHEREAS, ArTara is engaged in the development of pharmaceutical products for the treatment of serious rare diseases; WHEREAS, University is engaged in clinical research to improve the diagnosis and treatment of lymphangioma (LM) using OK-432 (as defined below), a pharmaceutical product not approved by regulatory authorities in the United States; WHEREAS, University is engaged in a clinical research Program (as defined below) and with Chugai Pharmaceutical Co., Ltd., 1-1 Nihonbashi 2-Chome, Chuo-ku, Tokyo, 103-8324 Japan, and its wholly-owned subsidiary, Chugai Pharma U.S.A, LLC 300 Connell Drive, Suite 3100, Berkeley Heights, New Jersey 07922 (collectively "Chugai"), the product manufacturer; WHEREAS, Principal Investigator (as defined below) of the Program is an employee of the University and holds the IND (as defined below) approved by the FDA (as defined below) for OK-432 under BB-IND#5266; WHEREAS, ArTara wishes to develop and submit for regulatory approval, TARA-002, a proposed product that will be biosimilar to OK- 432; WHEREAS, ArTara wishes to use the Program Data (as defined below) collected from the Program, conduct research analysis of the Data