Cogent Biosciences Reports Recent Business Highlights and Fourth Quarter and Full Year 2023 Financial Results

On February 26, 2024 Cogent Biosciences, Inc. (Nasdaq: COGT), a biotechnology company focused on developing precision therapies for genetically defined diseases, reported a business update and announced financial results for the fourth quarter and full year of 2023 (Press release, Cogent Biosciences, FEB 26, 2024, View Source [SID1234640445]).

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"We have entered 2024 in a very strong position," said Andrew Robbins, Cogent’s President and Chief Executive Officer. "We are now actively enrolling three registration-directed clinical trials of bezuclastinib across NonAdvSM, AdvSM and 2nd-line GIST patients, all of which are on track to deliver top-line results in 2025. With our recent fundraising, we are funded into 2027, and based on the clinical data we have presented across these programs to date, believe strongly that bezuclastinib has the opportunity to become the best-in-class KIT mutant inhibitor for these three indications."

Q4 2023 and Recent Business Highlights

In February 2024, reported positive Part 1b data from the Company’s ongoing Phase 2 SUMMIT trial at the 2024 American Academy of Allergy Asthma & Immunology Annual Meeting (AAAAI) meeting. SUMMIT is a registration-directed, randomized, double-blind, placebo-controlled, global, multicenter, clinical trial of bezuclastinib in patients with nonadvanced systemic mastocytosis (NonAdvSM). Key highlights include:

Announced the 100 mg Recommended Phase 2 Dose (RP2D)
Demonstrated a well-tolerated safety profile, generally consistent with placebo
Introduced Cogent’s MS2D2, a novel, refined patient reported outcomes measure (PROM) designed to assess symptomatic severity and improvement
Reported a 51% week 12 mean improvement in total symptom score (TSS) for bezuclastinib, including 70% of patients achieving ≥50% improvement in symptom severity
Reported a 49% week 12 mean improvement in quality of life (MC-QoL) for bezuclastinib

In February 2024, closed a $225 million oversubscribed private investment in public equity (PIPE) financing. Cogent sold approximately 17 million shares of its common stock at a price of $7.50 per share, representing a premium of approximately 37% to its closing price on February 13, 2024. The financing also included Series B non-voting convertible Preferred Stock convertible into approximately 13 million shares of its common stock.

In December 2023, reported positive clinical data from the Phase 2 SUMMIT and APEX trials at the American Society of Hematology (ASH) (Free ASH Whitepaper) annual meeting. Highlights from APEX, a registration-directed trial evaluating bezuclastinib in patients with advanced systemic mastocytosis (AdvSM), include:

Reported an encouraging safety and tolerability profile with no related cognitive impairment or bleeding events
Achieved impressive effects in key biomarkers of disease burden
Achieved 56% Overall Response Rate (ORR) in TKI-naïve patients, including 86% ORR by Pure Pathological Response (PPR) criteria

In December 2023, presented new preclinical data highlighting the potential best-in-class potency and selectivity of Cogent’s ErbB2 inhibitor and announced a third Cogent discovery stage PI3Kα inhibitor program at the San Antonio Breast Cancer Symposium (SABCS).

The novel EGFR-sparing, brain-penetrant ErbB2 inhibitor demonstrated a superior efficacy profile, reaching 80% brain penetrance with potent coverage of key mutations
The novel, H1047R mutant-selective PI3Kα inhibitor demonstrated high clinical target engagement without metabolic dysfunction commonly associated with molecules in the class

In November 2023, reported updated clinical data from the lead-in portion of the ongoing PEAK Phase 3 trial evaluating bezuclastinib in combination with sunitinib in patients with GIST at the Connective Tissue Oncology Society (CTOS) annual meeting. Positive lead-in data was first presented at the 2023 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) annual meeting in June.

Safety and tolerability data from 42 patients enrolled in Part 1a and Part 1b were consistent with results shared at the 2023 ASCO (Free ASCO Whitepaper) annual meeting, demonstrating the combination of bezuclastinib and sunitinib was well tolerated with an adverse event profile similar to sunitinib monotherapy
Updated clinical activity from a subset of 2nd-line GIST patients demonstrated 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

In October 2023, presented updated preclinical data from the Company’s next-generation selective fibroblast growth factor receptor 2 (FGFR2) program in a poster presentation at the 2023 AACR (Free AACR Whitepaper)-NCI-EORTC AACR-NCI-EORTC (Free AACR-NCI-EORTC Whitepaper) International Conference on Molecular Targets and Cancer Therapeutics (EORTC-NCI-AACR) (Free ASGCT Whitepaper) (Free EORTC-NCI-AACR Whitepaper).

The poster showed Cogent’s internally-developed FGFR2 inhibitor exhibits low nM 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 an AN3 CA model, CGT4859 demonstrated dose-responsive tumor growth inhibition with complete regressions at 5 mg/kg PO and was well-tolerated
Projected Near-Term Milestones

Bezuclastinib – Systemic Mastocytosis (SM)

Complete enrollment in SUMMIT Part 2 in the second quarter of 2025 and deliver top-line results by the end of 2025

Provide additional safety, tolerability and patient-reported outcomes data from the open label extension portion of SUMMIT Part 1 during 2024

Complete enrollment in the registration-directed APEX Phase 2 trial in patients with Advanced Systemic Mastocytosis (AdvSM) by the end of 2024
Bezuclastinib – Gastrointestinal Stromal Tumors (GIST)

Complete enrollment in the global, randomized Phase 3 PEAK trial in 2nd-line GIST patients by the end of 2024

Provide additional clinical results from the PEAK lead-in trial, including longer duration safety and tolerability results along with updated efficacy measures, including objective response rate (ORR) and progression free survival (PFS) during 2024
CGT4859 (FGFR2 inhibitor)

Initiate a Phase 1 trial of the first Cogent-discovered pipeline program, designed as a potent, selective, reversible FGFR2 inhibitor with best-in-class potential in the second half of 2024
Preclinical Pipeline

Initiate IND-enabling studies for lead candidate from potent, selective ErbB2 program, highlighted by potential best-in-class brain penetrant properties

Select lead candidate and initiate IND-enabling studies from ongoing PI3Ka program, designed to potently and selectively target the H1047R driver mutation, which affects >30,000 cancer patients each year
Upcoming Investor Conference

Leerink Healthcare Conference on Tuesday, March 12 at 2:20 p.m. ET.

A live webcast 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 event and will be archived for up to 30 days.
Fourth Quarter and Full Year 2023 Financial Results

Cash and Cash Equivalents: As of December 31, 2023, Cogent had cash, cash equivalents and marketable securities of $273.2 million. Cogent believes this year-end balance, together with the gross proceeds from the $225.0 million oversubscribed private placement, which closed February 16, 2024, will be sufficient to fund its operating expenses and capital expenditure requirements into 2027, including through clinical readouts from the ongoing SUMMIT, PEAK and APEX registration-directed trials.

R&D Expenses: Research and development expenses were $48.7 million for the fourth quarter of 2023 and $173.8 million for the year ended December 31, 2023, as compared to $36.7 million for the fourth quarter of 2022 and $121.6 million for the year ended December 31, 2022. The increase is driven by progress on the APEX, SUMMIT and PEAK trials and the continued development of the research pipeline. During the quarter Cogent also completed and paid for bulk manufacturing campaigns of bezuclastinib to continue supporting the company’s clinical trials. R&D expenses include non-cash stock compensation expense of $4.1 million for the fourth quarter of 2023 and $14.6 million for the year ended December 31, 2023, as compared to $2.4 million for the fourth quarter of 2022 and $8.5 million for the year ended December 31, 2022.

G&A Expenses: General and administrative expenses were $9.5 million for the fourth quarter of 2023 and $34.4 million for the year ended December 31, 2023, as compared to $7.0 million for the fourth quarter of 2022 and $26.2 million for the year ended December 31, 2022. G&A expenses include non-cash stock compensation expense of $4.8 million for the fourth quarter of 2023 and $16.0 million for the year ended December 31, 2023, as compared to $2.6 million for the fourth quarter of 2022 and $9.9 million for the year ended December 31, 2022.

Net Loss: Net loss was $54.4 million for the fourth quarter of 2023 and $192.4 million for the year ended December 31, 2023, as compared to a net loss of $39.6 million for the fourth quarter of 2022 and $140.2 million for the year ended December 31, 2022.