Research and development expenses totaled $52.8 million for Q1 2021, down 23% compared to $68.2 million for the comparable period in 2020, due primarily to lower spending on Rubraca clinical trials. As previously discussed, the Company expects research and development expenses to be lower in the full year 2021 compared to 2020.
Selling, general and administrative expenses totaled $29.9 million for Q1 2021, down 30% compared to $42.6 million for the comparable period in 2020, due to the COVID-19 situation globally and overall cost reduction efforts. Clovis continues to expect selling, general and administrative expenses to decrease in the full year 2021 compared to 2020.
Clovis reported a net loss for Q1 2021 of $66.3 million, or ($0.64) per share, compared to a net loss for Q1 2020 of $99.3 million, or ($1.39) per share. Net loss for Q1 2021 included share-based compensation expense of $4.0 million, compared to $13.0 million for the comparable period of 2020.
Clovis had $190.9 million in cash and cash equivalents as of March 31, 2021, which together with the ATHENA clinical trial financing, is expected to fund the Company’s operating plan into early 2023 based on current revenue and expense forecasts.
As of March 31, 2021, the Company had drawn $113.6 million under the Sixth Street Partners, LLC (SSP) ATHENA clinical trial financing and had up to $61.4 million available to draw under the agreement to fund the expenses of the ATHENA trial.
Net cash used in operating activities was $61.9 million for Q1 2021, down from $82.5 million reported in Q1 2020. Cash burn in Q1 2021 was $48.1 million, down 28% from $66.9 million in Q1 2020. We expect this trend of lower cash burn to continue in 2021.
Clovis Oncology Pipeline Highlights
Anticipated Rubraca Pipeline Events in 2021
Top-line data from the ATHENA Phase 3 study in first-line maintenance treatment ovarian cancer setting evaluating Rubraca monotherapy versus placebo are expected in the second-half of 2021, contingent upon the occurrence of the protocol-specified progression-free survival (PFS) events. Data from the combination arm of Rubraca plus Opdivo® (nivolumab) versus Rubraca monotherapy are expected a year or more later.
LODESTAR, the Company’s Phase 2 trial of Rubraca in patients with solid tumors with deleterious mutations in homologous recombination repair (HRR) genes is currently enrolling. This study may be registration-enabling, with a potential regulatory filing in 1H 2022.
LuMIERE Phase 1/2 Study of FAP-2286 Expected to Begin 1H 2021
FAP-2286 is Clovis Oncology’s peptide-targeted radionuclide therapy (PTRT) and imaging agent targeting fibroblast activation protein (FAP) and is the lead candidate in the Company’s PTRT development program. With FDA clearance of each of the treatment and imaging IND applications for FAP-2286, Clovis expects to open for enrollment the Phase 1/2 LuMIERE clinical study this quarter. The Phase 1 portion of the LuMIERE study will evaluate the safety of the FAP-targeting investigational therapeutic agent and identify the recommended Phase 2 dose and schedule of lutetium-177 labeled FAP-2286 (177Lu-FAP-2286). FAP-2286 labeled with gallium-68 (68Ga-FAP-2286) will be utilized as an investigational imaging agent to identify patients with FAP-positive tumors appropriate for treatment with the therapeutic agent. Once the Phase 2 dose is determined, Phase 2 expansion cohorts are planned in multiple tumor types.
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