On November 14, 2022 Calithera Biosciences, Inc. (Nasdaq: CALA), a clinical-stage, precision-oncology biopharmaceutical company, reported its financial results for the third quarter ended September 30, 2022 (Press release, Calithera Biosciences, NOV 14, 2022, View Source,months%20ended%20September%2030%2C%202022. [SID1234623973]).

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"Earlier in the fourth quarter, we were very pleased to announce that we received FDA Fast Track designation for sapanisertib. This designation facilitates more frequent communication with the Agency, as well as a number of other benefits that could support our efforts to bring sapanisertib to patients in this area of high unmet need more quickly," said Susan Molineaux, PhD, president and chief executive officer of Calithera. "Today we also share that we have experienced site activation delays on both our sapanisertib and mivavotinib trials, leading to slower than anticipated enrollment for both these programs. We expect initial data from these studies will not be available until mid-2023."

Third Quarter 2022 and Other Recent Highlights

Received FDA Fast Track designation for sapanisertib (dual mTORC 1/2 inhibitor). In October, Calithera announced that sapanisertib has been granted Fast Track designation by the FDA for the treatment of adult patients with unresectable or metastatic squamous non-small cell lung cancer (sqNSCLC) whose tumors harbor the NRF2 mutation. Fast Track designation, which is designed to facilitate the development and expedite the review of therapeutic candidates with the potential to treat a serious or life-threatening condition where there is a major unmet medical need, provides a number of potential benefits including increased communication with the FDA, the ability to submit a marketing application on a rolling basis and the possibility of priority review.
Began enrolling patients in Phase 2 trial evaluating sapanisertib in sqNSCLC. In July 2022, the Company began enrolling patients in its phase 2 clinical trial (NCT05275673) of the dual mTORC 1/2 inhibitor sapanisertib (CB-228) in patients with relapsed/refractory NRF2 (NFE2L2)-mutated sqNSCLC. The study is designed to confirm the selective activity of sapanisertib in NRF2-mutated tumors compared to wild-type tumors, and to refine dose in this biomarker-defined population. The primary endpoints of the study are investigator-assessed overall response rate (ORR) per RECIST v1.1, and safety. Calithera presented a trial-in-progress poster detailing the study design at the North American Conference on Lung Cancer in September 2022.

Continued patient enrollment activities in Phase 2 trial evaluating mivavotinib (SYK inhibitor) in r/r non-GCB DLBCL. In June 2022, the Company began enrolling patients in its multicenter Phase 2 clinical trial (NCT05319028) evaluating mivavotinib (CB-659) in patients with relapsed/refractory non-germinal center B-cell like (non-GCB) diffuse large B-cell lymphoma (DLBCL). The main objectives of the study are to confirm previously observed single-agent activity in non-GCB DLBCL patients, evaluate activity according to MYD88/CD79b mutation status and refine dose/schedule in this patient population. The primary endpoints of the study are overall response rate (as assessed by an independent radiology review committee) and safety. Details of the Phase 2 study design were presented in a trial-in-progress poster at the Pan Pacific Lymphoma Conference in July.
Continued to advance VPS4 program through lead optimization. Calithera continued to advance multiple vacuolar protein sorting-associated protein 4A (VPS4A) and VPS4B inhibitors through lead optimization and plans to share updates on this program by the end of 2022.
Selected Third Quarter 2022 Financial Results

Cash and cash equivalents totaled $34.1 million at September 30, 2022. Based on its current operating plan, the Company expects it has sufficient cash to fund its operations into the second quarter of 2023. The Company is currently evaluating all options for its programs, including strategic collaboration or licensing agreements and actively considering the sale of certain programs, in order to extend its cash runway.

Research and development expenses for the third quarter 2022 were $6.5 million, compared to $11.6 million in the same period prior year. The decrease of $5.1 million was primarily due to decreases in the telaglenastat and CB-280 programs and investments in early stage research, partially offset by increases in the sapanisertib and mivavotinib programs.

General and administrative expenses for the third quarter 2022 were $3.0 million, compared to $6.3 million in the same period prior year. The decrease of $3.3 million was primarily due to decreased personnel-related costs and legal expenses.

Net loss was $9.8 million for the three months ended September 30, 2022.

Conference Call Information

Calithera will host an update conference call today, Monday, November 14, at 2:00 p.m. Pacific Time/5:00 p.m. Eastern Time. To register for dial-in access to the call, please use this link. To access the live audio webcast or the subsequent archived recording, visit the Investors section of the Calithera website at www.calithera.com. The webcast will be recorded and available for replay on Calithera’s website for 30 days.