Thanks, Simon. I'm going to focus my comments on the key aspects of our third quarter financial results, including our current cash position and cash runway as well as operating expenses. Cash and cash equivalents and marketable securities as of September 30, 2017, were $43.8 million, compared to $64.1 million as of December 31, 2016. Based on our current assumptions, which include fully supporting the planned clinical development of XEN1101 and XEN901 as previously guided, we anticipate having sufficient cash to fund operations into the first quarter of 2019, excluding any revenue generated from existing partnerships or potential new partnering arrangements.
Research and development expenses for the quarter were $7.2 million, compared to $6 million for the same period in 2016. The increase of $1.2 million was primarily attributable to increased spending on the preclinical discovery and other internal programs as well as XEN1101, and partially offset by a decrease in XEN801 expenses, which is no longer being developed and a decrease in collaboration expenses.
General and administrative expenses for the quarter were $1.7 million, compared to $1.8 million for the same period in 2016. This decrease of $0.1 million is primarily attributable to the fair value adjustment on liability classified stock options. Other income for the quarter was $0.9 million, compared to other expense of $0.4 million for the same period in 2016. The change was primarily driven by an increase in unrealized foreign exchange gains arising from the translation of Canadian denominated balances to U.S. dollars.
Net loss for the quarter was $7.7 million, unchanged from the same period in 2016, due to lower revenue, higher R&D expenses, partially offset by higher unrealized foreign exchange gains recorded in the quarter ended September 30, 2017.
So in summary, as we continue to build an innovative portfolio of antiepileptic drugs, we plan to efficiently and strategically manage our resources and cash runway. And looking ahead, we envision our 2 proprietary epilepsy programs advancing through clinical development, and both in Phase II clinical trials by the end of 2018, if supported by the data. We are excited by this work within our proprietary programs and we look forward to keeping you updated on our progress. So thank you for joining us on the call today, and we look forward to providing updates on our progress throughout the remainder of the year. Operator, we can now end the call.