Accounts Payable

9 Months Ended

Sep. 30, 2018

Accounts Payable Disclosure [Abstract]

Accounts Payable

5. Accounts Payable

As of September 30, 2018, Current Liabilities included accounts payable of $0.5 million, comprised primarily of amounts owed for clinical trial costs, legal fees and external research expenses. As of December 31, 2017, Current Liabilities included accounts payable of $0.1 million.