General and Administrative Expenses
General and administrative expenses increased by $879,035 to $2,689,263 for the three months ended June 30, 2022 from $1,810,228 for the three months ended June 30, 2021. The increase in general and administrative expenses for the three months ended June 30, 2022 was primarily attributable to an increase in expenses for being a public company, investor relations costs, directors and officers insurance and information technology costs as we continue to expand our business and build management infrastructure and increases in personnel-related costs resulting from an increase in employee headcount and stock-based compensation expenses.
Comparison of the Six Months ended June 30, 2022 and 2021
Revenues
For the six months ended June 30, 2022 and 2021 total revenues were $140,108 and $94,441 respectively, and consist mainly of income from our collaboration agreement and sublease of the Lugano office space. Collaboration revenues were $132,640 and $81,617 as of June 30, 2021 and 2021, respectively, and refer to development services costs related to the first target development program identified under our collaboration agreement with Zentalis.
Research and Development Expenses
Research and development expenses increased by $923,646 to $4,138,664 for the six months ended June 30, 2022 from $3,215,018 for the six months ended June 30, 2021. The increase in research and development expenses was primarily attributable to increases in outside services as we continue to expand our research and development activities, including external collaborations, chemical synthesis, model studies, pharmacology and pharmacokinetic studies, clinical manufacturing and increases in personnel-related costs resulting from an increase in employee headcount and stock-based compensation. As of June 30, 2022, and 2021, research and development expenses are net of research grants of $68,136 and $109,864, respectively.
General and Administrative Expenses
General and administrative expenses increased by $1,605,403 to $4,466,306 for the six months ended June 30, 2022 from $2,860,903 for the six months ended June 30, 2021. The increase in general and administrative expenses was primarily attributable to increase in expenses for related to our operation as a public company, legal fees relating to patent and corporate matters, directors and officers insurance, professional fees for accounting, professional services and investor relations as we continue to expand our business and build management infrastructure, and increases in personnel-related costs resulting from an increase in employee headcount, stock-based compensation and warrants issuance costs.
Liquidity and Capital Resources
Since our inception, we have not generated any revenue from product sales and have incurred significant operating losses and negative cash flows from our operations. We have not yet commercialized any products, and we do not expect to generate revenue from sales of any products in the foreseeable future, if at all. We have funded our operations to date primarily through a combination of sales of our securities and research grants.
We do not currently have any approved products and have never generated any revenue from product sales. To date, we have financed our operations primarily through the sale of equity securities and research grants. As of June 30, 2022, and December 31, 2021, we had $29,164 thousand and $36,881 thousand in cash, cash equivalents and marketable securities, respectively, and an accumulated deficit of $29,284 thousand and $20,925 thousand, respectively. We had an indebtedness of $626 thousand and $694 thousand as of June 30, 2022 and December 31, 2021, respectively. We believe that our existing cash, cash equivalents and marketable securities will enable us to fund our operating expenses and capital expenditure requirements into 2024.