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Financial Results
Revenue. Revenue for the three months ended September 30, 2020 was $9.2 million, as compared to $3.9 million for the comparable period in 2019, an increase of 133%. This increase was due to $5.5 million of revenue from our two COVID-19 diagnostic tests, partially offset by a modest decline in our non-COVID-19 diagnostic test volumes of $0.7 million as health care practitioners, including pulmonologists, were increasingly diverted to pandemic-related care. In addition, company sales efforts continued to be impacted by travel and other COVID-19 pandemic related restrictions. Revenue for the nine months ended September 30, 2020 was $18.5 million, as compared to $16.3 million for the comparable period in 2019, an increase of 14%.
Direct costs and expenses. Direct costs and expenses for the three months ended September 30, 2020 were $3.9 million, as compared to $1.5 million for the comparable period of 2019, an increase of 159%. Direct costs and expenses for the nine months ended September 30, 2020 were $7.3 million compared to $4.2 million for the nine months ended September 30, 2019, an increase of 73%. The increase in costs were primarily driven by the release of the company’s Nodify CDT™ test and its COVID-19 testing program in 2020.
Research and development. Research and development expenses for the three months ended September 30, 2020 were $2.7 million, as compared to $2.4 million for the comparable period in 2019, an increase of 15%. Research and development expenses for the nine months ended September 30, 2020 were $7.7 million, as compared to $8.0 million for the comparable period in 2019, a decrease of 3%.
Sales, marketing, general and administrative. Sales, marketing, general and administrative expenses for the three months ended September 30, 2020 were $7.9 million, as compared to $8.2 million for the comparable period in 2019, a decrease of 4%. Sales, marketing, general and administrative expenses for the nine months ended September 30, 2020 were $22.8 million, as compared to $24.1 million for the comparable period in 2019, a decrease of 5%. The decrease was driven by reductions in travel and related expenses as the COVID-19 pandemic reduced or eliminated the travel and related expenses.
Operating loss. Operating loss for the three months ended September 30, 2020 was $6.2 million, as compared to an operating loss of $9.0 million for the comparable period in 2019, a decrease of 31%. Operating loss for the nine months ended September 30, 2020 was $20.3 million, as compared to an operating loss of $23.2 million for the comparable period in 2019, a decrease of 13%. The decrease was due in part to higher revenue in the third quarter of 2020 as compared to the third quarter of 2019.
Net loss. Net loss for the three months ended September 30, 2020 was $8.9 million, as compared to $9.6 million for the comparable period in 2019, a decrease of 8%. Net loss for the nine months ended September 30, 2020 was $26.8 million, as compared to $24.2 million for the comparable period in 2019, an increase of 11%.