quarter of 2021 included $16.8 million in RT-PCR COVID-19 test revenue, $2.5 million in oncology test revenue, $39,000 in development services test revenue and $62,000 in revenue for distributed products, Target Selector RUO kits and CEE-Sure blood collection tubes and payments associated with the development of a RT-PCR COVID-19 assay.
Biocept accessioned 153,056 commercial samples during the first quarter of 2022, compared with 141,340 commercial samples during the first quarter of 2021.
Cost of revenues for the first quarter of 2022 was $10.3 million, compared with $9.0 million for the prior-year period, with the increase related primarily to the RT-PCR COVID-19 testing business.
Research and development expenses for the first quarter of 2022 were $1.9 million, compared with $1.0 million for the first quarter of 2021, with the increase primarily attributable to additional costs associated with preparing for the CNSide clinical trial, now called the FORESEE trial, which is expected to begin enrollment during the third quarter of 2022. General and administrative expenses for the first quarter of 2022 were $6.8 million, compared with $3.1 million for the first quarter of 2021, with the increase due primarily to severance and stock-based compensation expenses related to separation agreements with former executive management. Sales and marketing expenses for the first quarter of 2022 were $3.7 million, compared with $1.9 million for the first quarter of 2021, with the increase due primarily to on-going mediation regarding sales commissions.
The net loss attributable to common stockholders for the first quarter of 2022 was $2.8 million, or $0.16 per share on 16.8 million weighted-average shares outstanding. This compares with net income attributable to common stockholders for the first quarter of 2021 of $2.6 million, or $0.19 per diluted share on 13.7 million weighted-average shares outstanding.
Biocept reported cash and cash equivalents as of March 31, 2022 of $27.6 million, compared with $28.9 million as of December 31, 2021.
Conference Call and Webcast
Biocept will hold a conference call on Tuesday, June 7, 2022 beginning at 4:00 p.m. Eastern Time to discuss its re-focused and rationalized business strategy and to answer questions. Participants can pre-register for the conference call here. Callers who pre-register will be given a conference passcode and unique PIN to gain immediate access to the call and bypass the live operator. Participants may pre-register at any time, including up to and after the call start time.
The conference call can be accessed at the time of the live call by dialing (855) 656-0927 for domestic callers, (855) 669-9657 for Canadian callers or (412) 902-4109 for other international callers. A live webcast of the conference call will be available on the investor relations page of the Company’s website at http://ir.biocept.com/events.cfm.
A replay of the call will be available for 48 hours following its conclusion and can be accessed by dialing (877) 344-7529 for domestic callers, (855) 669-9658 for Canadian callers or (412) 317-0088 for other international callers. Please use event passcode 8040195. A replay of the webcast will be available for 90 days.
About Biocept
Biocept, Inc. develops and commercializes molecular diagnostic assays that provide physicians with clinically actionable information for treating and monitoring patients diagnosed with a variety of cancers. In addition to its portfolio of blood-based liquid biopsy assays, Biocept has developed the CNSide™ cerebrospinal fluid assay
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