On February 24, 2021 CytomX Therapeutics, Inc. (Nasdaq: CTMX), a clinical-stage oncology-focused biopharmaceutical company pioneering a novel class of investigational conditionally activated antibody therapeutics based on its Probody technology platform, reported fourth quarter and full year 2020 financial results and provided a business update (Press release, CytomX Therapeutics, FEB 24, 2021, View Source [SID1234575543]).

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"2020 was a highly productive year for CytomX in which we saw our clinical-stage pipeline advance to now encompass Phase 2 evaluations of four Probody therapeutics across nine cancer types, all while contending with the challenges posed by the COVID-19 pandemic. We have demonstrated that our Probody masking technology has the potential to widen or create a therapeutic window for first-in-class and validated oncology targets and we continue to execute on our strategic plan of delivering on the promise of our technology platform for transforming the lives of people with cancer," said Sean McCarthy, D.Phil., president, chief executive officer and chairman of CytomX Therapeutics. "Our leadership in the research, discovery and development of conditionally activated antibody therapeutic candidates positions us well for future growth as we now drive to important Phase 2 datasets for praluzatamab ravtansine (CX-2009) and CX-2029, directed against the targets CD166 and CD71, respectively, which have historically been considered to be undruggable. We are also pleased with the ongoing progress within our strategic partnerships including recent commitments from our foundational partner, Bristol Myers Squibb, to expand the evaluation of anti-CTLA-4 antibody, BMS-986249, into additional tumor types," continued Dr. McCarthy.

Business Highlights and Recent Developments

Presented at the 2020 San Antonio Breast Cancer Symposium updated data from the Phase 1 study of the anti-CD166 conditionally activated antibody-drug conjugate (ADC), praluzatamab ravtansine (CX-2009), in patients with human epidermal growth factor receptor 2 (HER2)-non-amplified breast cancer and translational data demonstrating measurable levels of activated praluzatamab ravtansine in tumor tissue, which supported the launch in December 2020 of a three-arm Phase 2 study. Arms A and B will study praluzatamab ravtansine as a single agent in patients with hormone receptor-positive (HR+), HER2-non-amplified breast cancer and triple-negative breast cancer (TNBC), respectively. Arm C will examine the combination of praluzatamab ravtansine and pacmilimab (CX-072), the Company’s proprietary conditionally activated anti-PD-L1 therapeutic candidate, in TNBC.
Continued patient enrollment in the Phase 2 expansion study of CX-2029, in partnership with AbbVie, evaluating the anti-CD71 conditionally activated ADC as a single agent in four cohorts: squamous non-small cell lung cancer, head and neck squamous cell carcinoma, esophageal and gastro-esophageal junction cancers, and diffuse large B-cell lymphoma.
Our partner, Bristol Myers Squibb, continued enrollment in its ongoing, randomized Phase 1/2a study of BMS-986249 in patients with previously-untreated unresectable stage III-IV melanoma and expanded the scope of the Part 2b evaluation to include three new cohorts, enrolling patients with advanced hepatocellular carcinoma, metastatic castration-resistant prostate cancer, and unresectable locally advanced or metastatic TNBC. BMS also continued enrollment into a Phase 1 study of a second anti-CTLA-4 Probody, BMS-986288.
Advancement of our third conditionally activated ADC, CX-2043, into investigational new drug (IND)-enabling studies. CX-2043 is directed against the epithelial cell adhesion molecule (EpCAM/Trop-1), a high potential target with elevated expression on a wide variety of tumor types.
Continued IND-enabling studies for CX-904, our most advanced program in the new and promising modality of T-cell engaging bispecific antibodies. CX-904, partnered with Amgen, targets the epidermal growth factor receptor on tumor cells and the CD3 receptor on T cells.
Continued drug discovery activities for conditionally activated T-cell engaging bispecific antibodies as part of our strategic collaboration with Astellas.
Appointed new Board member Dr. Mani Mohindru.
Strengthened balance sheet with approximately $108 million raised from a follow-on public equity offering.
Anticipated Events

Report initial data from the praluzatamab ravtansine (CX-2009) Phase 2 study in the fourth quarter of 2021.
Report initial data from the CX-2029 Phase 2 expansion study in the fourth quarter of 2021.
Submit IND applications for CX-2043 and CX-904 in late 2021.
Virtual analyst and investor briefing with Key Opinion Leaders in April 2021 to discuss our Probody technology platform with focus on praluzatamab ravtansine and CX-2029.
Fourth Quarter and Full Year 2020 Financial Results
Cash, cash equivalents and short-term investments totaled $316.1 million as of December 31, 2020, compared to $296.1 million as of December 31, 2019. In January 2021, the Company closed on its previously announced underwritten public offering of common stock with net proceeds of approximately $93.6 million. In February 2021, the underwriters exercised in full the option to purchase additional shares of common stock resulting in additional net proceeds of $14.1 million to the Company.

Total revenues were $16.4 million and $100.4 million for the three months and year ended December 31, 2020, respectively, compared to $8.3 million and $57.5 million for the corresponding periods in 2019. The net increase in total revenues were primarily driven by an increase in the percentage of completion of the CD71 Co-Development and Licensing Agreement with AbbVie and the recognition of revenue from the Collaboration and License Agreement with Astellas entered into in March 2020.

Research and development expenses decreased by $14.4 million and $18.7 million during the three months and year ended December 31, 2020, respectively, to $22.0 million and $112.9 million, compared to $36.4 million and $131.6 million for the corresponding periods in 2019. The decreases were largely attributed to a decrease in clinical trial activities primarily due to the COVID-19 pandemic.

General and administrative expenses were essentially flat during the three months and year ended December 31, 2020, amounting to $9.1 million and $36.0 million, respectively, compared to $9.2 million and $36.8 million for the corresponding periods in 2019.

Conference Call & Webcast Information
CytomX management will host a conference call today at 5:00 p.m. ET (2:00 p.m. PT). Interested parties may access the live webcast of the conference call from the Events and Presentations page of CytomX’s website at www.cytomx.com or by dialing 1-877-809-6037 (U.S. and Canada) or 1-615-247-0221 (International) using the passcode 5558715. An archived replay of the webcast will be available on the Company’s website until March 3, 2021.