For the six months ended June 30, 2022, the increase in CPI-818 costs of $0.5 million as compared to the six months ended June 30, 2021, primarily consisted of an increase of $0.3 million in drug manufacturing costs, an increase of $0.1 million in clinical trial expenses and an increase of $0.1 million in other outside service costs.
For the three months ended June 30, 2022, the decrease in unallocated costs of $1.1 million as compared to the three months ended June 30, 2021, primarily consisted of a decrease of $1.0 million in personnel and related costs and a decrease of $0.3 million in facility related expenses, which were partially offset by an increase of $0.2 million in other outside service costs.
For the six months ended June 30, 2022, the decrease in unallocated costs of $2.2 million as compared to the six months ended June 30, 2021, primarily consisted of a decrease of $2.0 million in personnel and related costs and a decrease of $0.3 million in facility related expenses, which were partially offset by an increase of $0.1 million in other outside service costs
General and Administrative Expense
For the three months ended June 30, 2022, the decrease in general and administrative expenses of $0.1 million as compared to the three months ended June 30, 2021, primarily consisted of a decrease of $0.1 million in personnel and related costs.
For the six months ended June 30, 2022, the decrease in general and administrative expenses of $1.0 million as compared to the six months ended June 30, 2021, primarily consisted of a decrease of $0.8 million in personnel and related costs and a decrease of $0.2 million in professional service costs
Interest Income and Other Expense, net
For the three months ended June 30, 2022, the increase in interest income and other expense, net of $0.1 million as compared to the three months ended June 30, 2021, primarily consisted of additional interest income earned due to a higher rate of return on investments.
For the six months ended June 30, 2022, the increase in interest income and other expense, net of $0.1 million as compared to the six months ended June 30, 2021, primarily consisted of additional interest income earned due to a higher rate of return on investments
Sublease Income – Related Party
For the three and six months ended June 30, 2022, sublease income of $0.1 million and $0.3 million, respectively, represents rental income associated with our building sublease to Angel Pharmaceuticals.
Loss from equity method investment
For the three months ended June 30, 2022, the increase in loss from equity method investment of $1.6 million as compared to the three months ended June 30, 2021, primarily consisted of an increase in our share of Angel Pharmaceutical’s loss for the three months ended June 30, 2022.
For the six months ended June 30, 2022, the increase in loss from equity method investment of $2.6 million as compared to the six months ended June 30, 2021, primarily consisted of an increase in our share of Angel Pharmaceutical’s loss for the six months ended June 30, 2022
Liquidity and Capital Resources
As of June 30, 2022, we had cash, cash equivalents and marketable securities of $56.7 million, and an accumulated deficit of $283.0 million, compared to cash and cash equivalents and marketable securities of $69.5 million