trial and CMC expenses associated with our AR program of $2.3 million and our ER program of $1.0 million, in addition to increases in preclinical expenses of $4.1 million associated with exploratory programs and investments in platform research.
General and Administrative Expenses: General and administrative expenses were $8.8 million for the quarter ended June 30, 2020, as compared to $6.4 million for the quarter ended June 30, 2019. The increase of $2.4 million was primarily related to an increase in personnel and facility related costs of $2.2 million.
Revenues: Revenue was $5.7 million for the quarter ended June 30, 2020, as compared with $4.0 million for the quarter ended June 30, 2019. The increase of $1.7 million was primarily related to the collaboration and license agreement with Bayer that was initiated in July 2019. Revenues are generated from the license and rights to technology fees and research and development activities related to the collaboration and license agreement with Bayer that was initiated in July 2019, the collaboration and license agreement with Pfizer that was initiated in January 2018, and the amended and restated option, license and collaboration agreement with Genentech that was initiated in November 2017.
Net Loss: Net loss was $25.2 million for the quarter ended June 30, 2020, as compared with $17.2 million for the quarter ended June 30, 2019. The increase in net loss for the quarter was primarily due to increased research and development expenses and increased general and administrative expenses.
About ARV-110
ARV-110 is an orally bioavailable PROTAC® protein degrader designed to selectively target and degrade the androgen receptor (AR). ARV-110 is being developed as a potential treatment for men with metastatic castration-resistant prostate cancer.
ARV-110 has demonstrated activity in preclinical models of AR mutation or overexpression, both common mechanisms of resistance to currently available AR-targeted therapies.
About ARV-471
ARV-471 is an orally bioavailable PROTAC® protein degrader designed to specifically target and degrade the estrogen receptor (ER) for the treatment of patients with locally advanced or metastatic ER+/HER2- breast cancer.
In preclinical studies, ARV-471 demonstrated near-complete ER degradation in tumor cells, induced robust tumor shrinkage when dosed as a single agent in multiple ER-driven xenograft models, and showed superior anti-tumor activity when compared to a standard of care agent, fulvestrant, both as a single agent and in combination with a CDK4/6 inhibitor.
About Arvinas
Arvinas is a clinical-stage biopharmaceutical company dedicated to improving the lives of patients suffering from debilitating and life-threatening diseases through the discovery, development, and commercialization of therapies that degrade disease-causing proteins. Arvinas uses its proprietary technology platform to engineer proteolysis targeting chimeras, or PROTAC® targeted protein degraders, that are designed to harness the body’s own natural protein disposal system to selectively and efficiently degrade and remove disease-causing proteins. The company has two clinical-stage programs: ARV-110 for the treatment of men with metastatic castrate-resistant prostate cancer; and ARV-471 for the treatment of patients with locally advanced or metastatic ER+/HER2- breast cancer. For more information, visit www.arvinas.com.
Forward-Looking Statements
This press release contains forward-looking statements that involve substantial risks and uncertainties, including statements regarding the development and regulatory status of our product candidates, the conduct of and plans for our ongoing Phase 1/2 clinical trials for ARV-110 and ARV-471, the plans for presentation of data from our clinical trials for ARV-110 and ARV-471, the potential advantages and therapeutic potential of our product