-- Conference Call and Webcast Scheduled for
“We made significant headway in the transfer of mivavotinib and sapanisertib materials to Calithera during the first quarter and are well into site start-up activities. We are on track to begin enrolling patients in both mivavotinib and sapanisertib trials in the second quarter of 2022 and expect to share data from these studies by the first quarter of 2023,” said
First Quarter 2022 and Recent Highlights
- Mivavotinib (SYK inhibitor): Based on clinical data showing enhanced activity of mivavotinib in activated B-cell-like (ABC) diffuse large B-cell lymphoma (DLBCL) and preclinical data demonstrating enhanced SYK activity and inhibition in DLBCL with MyD88/CD79 mutations, Calithera designed a phase 2 trial of mivavotinib in relapsed or refractory non-GCB (ABC) DLBCL with enrichment of MYD88/CD79b-mutated tumors using liquid next-generation sequencing (NGS) testing. The phase 2a portion of the study will confirm activity in the biomarker-defined subsets and further refine dose and schedule. The trial will enroll non-GCB (ABC) DLBCL patients based on Hans algorithm, and researchers will collect MyD88 and CD79 mutation status using ctDNA-based liquid NGS to accrue a pre-specified number of patients harboring MyD88 or CD79b mutations. Approximately 50% of all ABC DLBCL tumors have one or both of these mutations. Calithera anticipates the first patient enrolled in the second quarter of 2022. Data generated from this study could position the company to initiate a study with registrational intent in biomarker-specific populations in DLBCL.
- Sapanisertib (Dual mTORC 1/2 inhibitor): In a recent investigator-led study, sapanisertib demonstrated durable single-agent activity in patients with heavily pretreated NRF2 (NFE2L2)-mutated squamous non-small cell lung cancer (NSCLC). These mutations occur in approximately 15% of patients with squamous NSCLC. Calithera is initiating a phase 2 study intended to strengthen the existing data in patients with NRF2-mutated squamous NSCLC and evaluate its activity in NRF2 wildtype (WT) squamous NSCLC. Sapanisertib has the potential to be a first-in-class treatment for individuals with NRF2-mutated squamous NSCLC, a patient population with poorer prognosis, unmet clinical need, and no targeted therapies. Sapanisertib could also be a possible treatment for other NRF2-mutated cancers beyond NSCLC. Calithera anticipates the first patient enrolled in this study in the second quarter of 2022.
- Presented data on its novel series of VPS4A inhibitors. Calithera presented the first data from its preclinical synthetic lethality pipeline at the
American Association for Cancer Research(AACR) 2022 Annual Meeting. The presented poster detailed Calithera’s discovery of a novel series of VPS4A (vacuolar protein sorting-associated protein 4A) inhibitors that are currently advancing through lead optimization. These data validate the synthetic lethal interaction between the gene paralogs VPS4A and VPS4B, and we believe, provide the first preclinical evidence supporting a newly discovered series of compounds designed to target these proteins for cancer treatment. To our knowledge, these are the first active, on-target VPS4 inhibitors described to date.
- Closed a
$10.0 MillionUnderwritten Public Offering of Common Stock and Warrants to Purchase Common Stock. On April 1, 2022, Calithera closed an underwritten public offering of 18,518,519 shares of its common stock at a combined price to the public of $0.54per share and accompanying warrants. Each share of common stock is accompanied by a warrant to purchase one share of common stock at an exercise price of $0.54per share, which is immediately exercisable and will expire 18 months from the date of issuance, or a short-term warrant, and a warrant to purchase one share of common stock at an exercise price of $0.54per share, which is immediately exercisable and will expire 5 years from the date of issuance, or a long-term warrant. Calithera received gross proceeds of $10.0 million, resulting in $8.5 millionof net proceeds after deducting underwriting discounts and commissions and offering expenses.
Selected First Quarter 2022 Financial Results
Cash and cash equivalents totaled
Research and development expenses for the first quarter 2022 were
General and administrative expenses for the first quarter 2022 were
Net loss for the three months ended
Conference Call Information
Calithera will host an update conference call today,
Calithera is headquartered in
Forward Looking Statements
Statements contained in this press release regarding matters that are not historical facts are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as "may," "will," "expect," "anticipate," "estimate," "intend," "poised" and similar expressions (as well as other words or expressions referencing future events, conditions, or circumstances) are intended to identify forward-looking statements. These statements include those related to the safety, tolerability and efficacy of Calithera’s product candidates, the overall advancement of Calithera’s product candidates in preclinical development and clinical trials, including Calithera’s plan to initiate two phase 2 clinical trials for mivavotinib and sapanisertib and plan to share data from these trials by the first quarter 2023, Calithera’s ability to potentially initiate registrational studies in biomarker-specific populations in DLBC and relapsed or refractory squamous NSCLC, the unmet need in the treatment of patients with advanced disease, and management’s expectation that Calithera’s cash and cash equivalents will be sufficient to meet its operating plan through the second quarter of 2023. Because such statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. The potential product candidates that Calithera develops may not progress through clinical development or receive required regulatory approvals within expected timelines or at all. In addition, clinical trials may not confirm any safety, potency or other product characteristics described or assumed in this press release. Such product candidates may not be beneficial to patients or be successfully commercialized. The failure to meet expectations with respect to any of the foregoing matters may have a negative effect on Calithera's stock price. Additional information concerning these and other risk factors affecting Calithera's business can be found in Calithera's periodic filings with the
|Selected Consolidated Statements of Operations Financial Data|
|(in thousands, except per share amounts)|
|Three Months Ended
|Research and development||9,566||15,339|
|General and administrative||4,260||5,428|
|Total operating expenses||13,826||20,767|
|Loss from operations||(13,826||)||(20,767||)|
|Interest and other income (expense), net||(9||)||372|
|Net loss per share, basic and diluted||$||(0.18||)||$||(0.28||)|
|Weighted average common shares used to compute net loss per share, basic and diluted||78,468||72,247|
|Selected Consolidated Balance Sheet Financial Data|
|Balance Sheet Data:|
|Cash and cash equivalents||$||44,664||$||59,537|
|Convertible preferred stock||40,702||40,702|
|Total stockholders' (deficit) equity||(3,136||)||8,382|
Source: Calithera Biosciences, Inc.