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- Lead clinical program of onvansertib in KRAS-mutated metastatic colorectal cancer continues to generate data showing robust response to treatment and progression-free survival
- First patient dosed in Phase 2 study of onvansertib in combination with standard-of-care for the treatment of metastatic pancreatic ductal adenocarcinoma
- Newly appointed CMO and CFO, and shareholders elected two new members to Company's Board of Directors, with expertise in drug development, financial strategy, and business development
SAN DIEGO, Aug. 5, 2021 /PRNewswire/ -- Cardiff Oncology, Inc. (Nasdaq: CRDF), a clinical-stage oncology company, developing new precision medicine treatment options for cancer patients in indications with the greatest unmet medical need including KRAS-mutated colorectal cancer, pancreatic cancer, and castrate-resistant prostate cancer, today announced recent company highlights and financial results for the second quarter ended June 30, 2021.
"During the past few months, we have achieved important clinical milestones that have advanced our drug development programs and further highlighted the clinical benefits of onvansertib across indications representing some of the most difficult to treat cancers" said Mark Erlander, Ph.D., chief executive officer of Cardiff Oncology. "The added expertise in drug development, financial strategy and business development brought by our CMO, CFO and new board members comes at a pivotal time for the Company, as our strong cash position and recent progress in our clinical and preclinical programs has us poised for a steady cadence of catalysts over the coming months."
Dr. Erlander continued, "Our clinical progress during the second quarter was highlighted by advancements in our two KRAS-focused programs. In metastatic pancreatic ductal adenocarcinoma (mPDAC), where approximately 95% of patients have a KRAS mutation, we began dosing patients in our Phase 2 trial evaluating onvansertib in combination with nanoliposomal irinotecan, 5-FU and leucovorin. This trial is supported by the promising data from our lead KRAS-mutated metastatic colorectal cancer program presented in April, which showed that treatment with onvansertib plus irinotecan, 5-FU and bevacizumab resulted in an overall response rate and median progression free survival that compare favorably to historical controls. Looking forward, we expect continued progress in these and our castrate-resistant prostate cancer trial as well as advancements in our efforts to expand onvansertib's pipeline of indications."
Program highlights for the quarter ended June 30, 2021, along with recent developments, include:
Strengthened company leadership with the appointments of Katherine L. Ruffner, M.D., as chief medical officer (CMO) and James E. Levine as chief financial officer (CFO)
Dr. Ruffner is a US-trained hematologist/oncologist with over 25 years of clinical care, oncology biotechnology and pharmaceutical drug development experience, most recently serving as vice president, clinical development for ALX Oncology. Mr. Levine joins Cardiff Oncology with over two decades of corporate and investment banking experience in the biotechnology and pharmaceutical sectors and was most recently the chief financial officer of Cidara Therapeutics.
Added two new independent members to the Board of Directors
Mani Mohindru, Ph.D., and Renee P. Tannenbaum, Pharm.D., were appointed as independent members of Cardiff Oncology's Board of Directors in June 2021. Dr. Mohindru is an experienced biotech industry executive and is currently the chief executive officer of Novasenta, an early-stage biotechnology company, and a director on the Board of CytomX, Inc., a clinical-stage biopharmaceutical company. Dr. Tannenbaum currently serves as vice president of global partnering at Halozyme, Inc. and has in-depth expertise in business development and in establishing successful strategic partnerships.
Added as a member of FTSE Russell Indexes
As of the market open on June 28, 2021, Cardiff Oncology was included as a member of the small-cap Russell 2000® Index, the all-cap Russell 3000® Index, and the Russell Microcap® Index.
KRAS-mutated Metastatic Colorectal Cancer (mCRC) Program:
Announced the upcoming presentation of new data from lead clinical program in KRAS-mutated mCRC on Wednesday, September 8, 2021
Updated data from the Phase 1b/2 trial evaluating onvansertib in combination with standard-of-care FOLFIRI/bevacizumab for the second-line treatment of patients with KRAS-mutated mCRC will be announced at a webinar on September 8, 2021 at 4:00 p.m. ET featuring the clinical trial principal investigator, Heinz-Josef Lenz, M.D., FACP (USC Norris Comprehensive Cancer Center), and key clinical advisor Afsaneh Barzi, M.D., Ph.D., (City of Hope Comprehensive Cancer Center). To register for the webinar, click here.
Announced updated data from the Phase 1b/2 trial evaluating onvansertib plus FOLFIRI/bevacizumab that continues to demonstrate robust response to treatment and progression-free survival in KRAS-mutated mCRC
The data were presented as part of a Key Opinion Leader webinar in April featuring Daniel H. Ahn, D.O., M.S. (Mayo Clinic Arizona), and Manish R. Sharma, M.D. (START Midwest), and showed robust patient response and progression-free survival when onvansertib is combined with standard-of-care therapy in second line KRAS-mutated mCRC. Data highlights from the Phase 1b trial, as of April 4, 2021, include:
7 of 18 (39%) evaluable patients achieved a partial response (PR)
Evaluable patients have a median progression free survival (mPFS) of 9.4 months (95% confidence interval: 7.85 months – not reached), more than double the historical 4.5-month mPFS from analysis of 23 randomized trials in second-line metastatic colorectal cancer (data from ~10,800 patients)¹
7 patients remain on treatment
Clinical responses were observed across different KRAS mutations, including the 3 most common in colorectal cancer (G12D, G12V, G13D)
The greatest decreases in plasma KRAS mutant allelic frequency (MAF) after 1 cycle of treatment were observed in patients achieving a PR
Onvansertib in combination with FOLFIRI/bevacizumab has been well tolerated with no major or unexpected toxicities attributed to onvansertib
Presented findings from the Expanded Access Program (EAP) for onvansertib in KRAS-mutated mCRC highlighting the clinical benefit of onvansertib in heavily pretreated patients
Findings from 20 evaluable EAP participants who were heavily pre-treated (median of 3 prior lines of treatment) were presented at the American Association for Cancer Research (AACR) Annual Meeting 2021 in April. Participants enrolled in the EAP had failed or progressed on multiple lines of standard-of-care treatment and were treated with the same combination regimen (onvansertib 15 mg/m2 + FOLFIRI/bevacizumab) and dosing schedule used in the ongoing Phase 1b/2 mCRC clinical trial. Highlights from the AACR presentation included:
15 of 20 (75%) evaluable participants received an irinotecan-based regimen as their last therapy prior to enrolling in the EAP.
13 of 20 (65%) evaluable participants were progressing prior to enrolling in the EAP
Median progression free survival (mPFS) was 5.6 months (95% confidence interval: 2.7 months – not reached), which is significantly greater than historical controls (2-3 months)2
62.5% of participants had a greater than 50% decrease in KRAS MAF after one cycle of treatment and continue to show a durable response and have not reached mPFS
11 of 20 of evaluable participants remain on treatment
Onvansertib in combination with FOLFIRI/bevacizumab has been well tolerated with no serious adverse events (SAEs) reported
Metastatic Pancreatic Ductal Adenocarcinoma (mPDAC) Program:
Began dosing patients in the Phase 2 trial of onvansertib in metastatic PDAC
The trial is a key component of onvansertib's KRAS-targeted clinical programs and is designed to assess the safety and preliminary efficacy of onvansertib in combination with nanoliposomal irinotecan (Onivyde®), leucovorin and fluorouracil (5-FU) as a second-line treatment in patients with metastatic PDAC who have failed first-line gemcitabine-based therapy. The trial expects to enroll 40 patients at 6 U.S. sites. Onvansertib's potential in mPDAC, where ~95% of patients have a KRAS mutation, is supported by the promising clinical data seen in KRAS-mutated mCRC patients treated with the combination of onvansertib, irinotecan and 5-FU (FOLFIRI).
Metastatic Castrate-Resistant Prostate Cancer (mCRPC) Program:
Identified an androgen-independent mechanism of synergy between onvansertib and abiraterone in mCRPC
Collaborative studies with the Massachusetts Institute of Technology featured in a virtual oral poster presentation at the AACR Annual Meeting 2021 suggest that the androgen receptor signaling inhibitor abiraterone sensitizes certain prostate cancer cells to onvansertib via the induction of a mitosis related gene signature and disruption of mitotic spindle orientation. These results are consistent with previous findings showing that onvansertib and abiraterone synergize in an androgen receptor-independent manner in vitro and in vivo. Data from the studies also suggest that the identified mitosis related gene signature may be predictive of patient response to onvansertib-abiraterone combination therapy, a hypothesis that is being further assessed in the ongoing Phase 2 mCRPC trial.
Second Quarter 2021 Financial Results:
As of June 30, 2021, Cardiff Oncology had approximately $140 million in cash, cash equivalents and short-term investments.
Total operating expenses were approximately $7.0 million for the three months ended June 30, 2021, an increase of $2.9 million from $4.1 million for the same period in 2020. The increase in operating expenses is attributed to ongoing and new onvansertib clinical development programs and preclinical activities, additional outside services for legal fees mainly related to the expansion of our patent portfolio, recruiting fees and stock compensation expense.
Research and development expenses increased by approximately $1.6 million to $4.1 million for the three months ended June 30, 2021, from $2.5 million for the same period in 2020. The increase in research and development expenses was primarily due to advancing the onvansertib clinical and preclinical programs and recruitment fees to fill the critical position of chief medical officer.
Selling, general and administrative expenses increased by approximately $1.1 million to $2.8 million for the three months ended June 30, 2021, from $1.7 million for the same period in 2020. The increase is attributed to increased outside services for legal fees related to the expansion of our patent portfolio, recruitment fees, and stock compensation expense.
Net cash used in operating activities in the second quarter of 2021 was approximately $4.3 million, which is comparable to the $4.3 million for the same period in 2020.
Giessen et al, Acta Oncologica, 2015; 54:187-193
Bekaii-Saab et al., Clin. Colorectal Cancer, 2019
About Cardiff Oncology, Inc.
Cardiff Oncology is a clinical-stage oncology company, developing new precision medicine treatment options for cancer patients in indications with the greatest unmet medical need. Our goal is to target tumor vulnerabilities with treatment combinations that overcome disease resistance and improve disease response to standard treatment regimens and to increase overall survival. We are developing onvansertib, a first-in-class, third-generation Polo-like Kinase 1 ("PLK1") inhibitor, in combination with standard-of-care anti-cancer therapeutics. Our clinical development programs incorporate tumor genomics and biomarker technology to refine assessment of patient response to treatment. We have three clinical programs currently ongoing: a Phase 1b/2 study of onvansertib in combination with FOLFIRI/Avastin® (bevacizumab) in KRAS-mutated metastatic colorectal cancer (mCRC); a Phase 2 study of onvansertib in combination with Zytiga® (abiraterone)/prednisone in metastatic castrate-resistant prostate cancer (mCRPC); and a Phase 2 trial of onvansertib in combination with nanoliposomal irinotecan, leucovorin and fluorouracil for the second-line treatment of patients with metastatic pancreatic ductal adenocarcinoma (PDAC). A Phase 2 study of onvansertib in combination with decitabine in relapsed or refractory acute myeloid leukemia (AML) completed enrollment in 2020. For more information, please visit https://www.cardiffoncology.com.
Certain statements in this press release are forward-looking within the meaning of the Private Securities Litigation Reform Act of 1995. These statements may be identified by the use of words such as "anticipate," "believe," "forecast," "estimated" and "intend" or other similar terms or expressions that concern Cardiff Oncology's expectations, strategy, plans or intentions. These forward-looking statements are based on Cardiff Oncology's current expectations and actual results could differ materially. There are a number of factors that could cause actual events to differ materially from those indicated by such forward-looking statements. These factors include, but are not limited to, clinical trials involve a lengthy and expensive process with an uncertain outcome, and results of earlier studies and trials may not be predictive of future trial results; our clinical trials may be suspended or discontinued due to unexpected side effects or other safety risks that could preclude approval of our product candidates; risks related to business interruptions, including the outbreak of COVID-19 coronavirus, which could seriously harm our financial condition and increase our costs and expenses; uncertainties of government or third party payer reimbursement; dependence on key personnel; limited experience in marketing and sales; substantial competition; uncertainties of patent protection and litigation; dependence upon third parties; our ability to develop tests, kits and systems and the success of those products; regulatory, financial and business risks related to our international expansion and risks related to failure to obtain FDA clearances or approvals and noncompliance with FDA regulations. There are no guarantees that any of our technology or products will be utilized or prove to be commercially successful. Additionally, there are no guarantees that future clinical trials will be completed or successful or that any precision medicine therapeutics will receive regulatory approval for any indication or prove to be commercially successful. Investors should read the risk factors set forth in Cardiff Oncology's Form 10-K for the year ended December 31, 2020, and other periodic reports filed with the Securities and Exchange Commission. While the list of factors presented here is considered representative, no such list should be considered to be a complete statement of all potential risks and uncertainties. Unlisted factors may present significant additional obstacles to the realization of forward-looking statements. Forward-looking statements included herein are made as of the date hereof, and Cardiff Oncology does not undertake any obligation to update publicly such statements to reflect subsequent events or circumstances.
Cardiff Oncology Contact:
Chief Operating Officer
Amy Jobe, Ph.D.
Cardiff Oncology, Inc.
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