Cogent Biosciences Reports Recent Business Highlights and Third Quarter 2023 Financial Results

On November 2, 2023 Cogent Biosciences, Inc. (Nasdaq: COGT), a biotechnology company focused on developing precision therapies for genetically defined diseases, reported recent business highlights and financial results for the third quarter ended September 30, 2023 (Press release, Cogent Biosciences, NOV 2, 2023, View Source [SID1234636749]).

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"This quarter was marked by meaningful progress as we furthered our efforts developing bezuclastinib for the AdvSM, NonAdvSM and GIST patient populations," said Andrew Robbins, Cogent’s President and Chief Executive Officer. "We look forward to the opportunity to present clinical data from both SUMMIT, selected for an oral presentation, and APEX clinical trials at the 2023 American Society of Hematology (ASH) (Free ASH Whitepaper) annual meeting in December, and are pleased with the updated PEAK lead-in data we are sharing at the 2023 Connective Tissue Oncology Society (CTOS) annual meeting this weekend. With these important advances coupled with our cash runway into 2026, we believe we are well positioned to further build on our momentum to bring best-in-class therapies to patients with genetically defined diseases."

Business Highlights & Milestones

Oral presentation of initial clinical data from SUMMIT Part 1a at the ASH (Free ASH Whitepaper) annual meeting on Saturday, December 9, 2023. SUMMIT is a randomized, global, multicenter, double-blind, placebo-controlled, multi-part Phase 2 trial evaluating bezuclastinib in patients with nonadvanced systemic mastocytosis (NonAdvSM). Cogent will host an investor webcast to review the results on Monday, December 11, 2023 at 8:00 a.m. ET. Details will be provided closer to the event.
Presentation will include safety, tolerability, pharmacokinetics, biomarker and symptomatic improvement results from the 20 patients enrolled in SUMMIT Part 1a.
Measures of symptomatic improvement will include clinical data collected from multiple patient reported outcome measures including MAS, MCQoL, PGIS and PGIC.
SUMMIT Part 1 enrollment completed in Q3 2023, including over-enrollment at 54 patients across Part 1a and Part 1b. Clinical results from the entire Part 1 patient population are planned for presentation at a scientific conference in Q1 2024.
SUMMIT Part 2, a registration-directed, global, randomized placebo-controlled trial is on track for initiation in 1H 2024, ahead of schedule.
Updated clinical data from the lead-in portion of the ongoing PEAK Phase 3 study to be shared in an oral presentation at the 2023 CTOS annual meeting on November 4, 2023. PEAK is an ongoing, multi-part Phase 3 randomized, global, multicenter trial evaluating bezuclastinib in combination with sunitinib in patients with imatinib-resistant gastrointestinal stromal tumors (GIST).
Safety and tolerability data from 42 patients enrolled in Part 1a and Part 1b are consistent with results shared at the 2023 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) annual meeting, demonstrating the combination of bezuclastinib and sunitinib was well tolerated and the adverse event profile was similar to sunitinib monotherapy.
Updated clinical activity from a subset of 2nd-line GIST patients demonstrates a 33% confirmed overall response rate (ORR) with ongoing median duration of therapy greater than 14 months. Together with clinical data previously reported from a Phase 1/2 trial, 4 of 10 evaluable 2nd-line GIST patients treated with the combination have reached confirmed partial response status.
Phase 3 portion of the PEAK study remains on track to complete enrollment by the end of 2024, with over 100 active sites globally.
Updated clinical results from Part 1 of the ongoing APEX study to be presented at the 2023 ASH (Free ASH Whitepaper) annual meeting on Monday, December 11, 2023. APEX is a global, multi-part Phase 2 trial evaluating bezuclastinib in patients with advanced systemic mastocytosis (AdvSM).
Presentation will include safety, tolerability, pharmacokinetics, biomarker and response assessments from 33 patients enrolled in APEX Part 1.
APEX Part 2 is on track to complete enrollment by the end of 2024. An additional APEX cohort was initiated in Q3 and is designed to allow concomitant administration of bezuclastinib with azacitadine in patients with systemic mastocytosis with an associated hematologic neoplasm (SM-AHN).
Presented preclinical data at the 2023 ENA annual meeting on the Company’s next-generation, reversible, non-covalent fibroblast growth factor receptor 2 (FGFR2) program, which exhibited low nanomolar potency on WT FGFR2 and FGFR2 mutations and is selective against the kinome and a panel of channels and receptors.
Exploratory pharmacokinetics (PK) studies conducted across species showed CGT4859 to be a low-clearance compound with high oral bioavailability. Further, in a mutant-driven mouse model, CGT4859 demonstrated dose-responsive tumor growth inhibition with complete regressions at 5 mg/kg PO and was well-tolerated. Cogent anticipates filing an Investigational New Drug (IND) Application and beginning a clinical trial in 2024.
Upcoming Scientific Presentations

2023 ASH (Free ASH Whitepaper) – Oral Presentation
Title: Initial Results from Summit: An Ongoing, 3-Part, Multi-Center, Randomized, Double-Blind, Placebo-Controlled Phase 2 Clinical Study of Bezuclastinib in Adult Patients with NonAdvanced Systemic Mastocytosis (NonAdvSM)
Date: Saturday, December 9, 2023
Session Time: 9:30 a.m. – 11:00 a.m. PT/12:30 p.m. – 2:00 p.m. ET
Presenter: Dr. Prithviraj Bose, MD Anderson Cancer Center, Houston, Texas
2023 CTOS – Oral Presentation
Title: Peak Study: A Phase 3, Randomized, Open-Label, Multicenter Clinical Study of Bezuclastinib (CGT9486) and Sunitinib Combination Versus Sunitinib in Patients with Gastrointestinal Stromal Tumors (GIST)
Date: November 4, 2023
Session Time: 9:00 a.m. – 10:00 a.m. GMT/5:00 a.m. – 6:00 a.m. ET
Presenter: Dr. Neeta Somaiah, MD Anderson Cancer Center, Houston, Texas
2023 ASH (Free ASH Whitepaper) – Poster Presentation
Title: Safety and Efficacy of Bezuclastinib (CGT9486), a Novel, Highly Selective, Potent KIT D816V Tyrosine Kinase Inhibitor, in Patients with Advanced Systemic Mastocytosis (AdvSM): Results From Part 1 of the Phase 2 Apex Trial
Date: Monday, December 11, 2023
Session Time: 6:00 p.m. – 8:00 p.m. PT/9:00 p.m. – 11:00 p.m. ET
Presenter: Dr. Pankit Vachhani, University of Alabama, Birmingham
Upcoming Investor Conferences
A live webcast of the following events can be accessed on the Investors & Media page of Cogent’s website at investors.cogentbio.com/events. A replay will be available approximately two hours after completion of the events and will be archived for up to 30 days.

Jefferies London Healthcare Conference on Wednesday, November 15, 2023 at 12:00 p.m. GMT (7:00 a.m. ET).
Piper Sandler 35th Annual Healthcare Conference on Tuesday, November 28, 2023 at 2:30 p.m. ET.
Third Quarter 2023 Financial Results

Cash Position: As of September 30, 2023, cash, cash equivalents and marketable securities were $312.8 million, as compared to $350.9 million as of June 30, 2023. The company believes that its cash, cash equivalents and marketable securities will be sufficient to fund its operating expenses and capital expenditure requirements into 2026.

R&D Expenses: Research and development expenses were $50.1 million for the third quarter of 2023 as compared to $29.9 million for the third quarter of 2022. R&D expenses include non-cash stock compensation expense of $4.0 million for the third quarter of 2023 compared to $2.1 million for the third quarter of 2022. In the quarter, $6.6 million in non-recurring charges were incurred for third party CDMOs to prepare for bezuclastinib pre-commercialization and to support sunitinib clinical supply for the PEAK study. Additional increases resulted from costs associated with the acceleration of APEX, SUMMIT and PEAK clinical trials and the continued development of our research pipeline.

G&A Expenses: General and administrative expenses were $9.5 million for the third quarter of 2023 as compared to $6.9 million for the third quarter of 2022. G&A expenses include non-cash stock compensation expense of $4.8 million for the third quarter of 2023 compared to $2.6 million for the third quarter of 2022.

Net Loss: Net loss was $55.4 million for the third quarter of 2023 as compared to a net loss of $35.1 million for the same period of 2022.