Summit Therapeutics Reports Financial Results and Operational Progress for the First Quarter Ended March 31, 2024

Rhea-AI Summary

• English
• French
• German
• Italian
• Korean
• Spanish

Summit Therapeutics Inc. (NASDAQ: SMMT) reports financial results and operational progress for Q1 2024. Key highlights include ivonescimab (SMT112) advancement, HARMONi Phase III trial enrollment, and new board director appointment. Financially, the company holds $157.0 million in cash and cash equivalents, with notable increases in R&D and G&A expenses. Despite a GAAP net loss of $43.5 million, the company's strategic growth initiatives and operational developments remain promising.

Positive

• Advancement of ivonescimab (SMT112) in late-stage clinical development for NSCLC.

• Strengthening of Board of Directors with the appointment of Dr. Mostafa Ronaghi.

• Operational progress with promising intracranial anti-tumor activity and safety data.

• Aggregate cash and cash equivalents of $157.0 million, reflecting financial stability.

Negative

• Significant increase in R&D and G&A expenses compared to the previous year.

• GAAP net loss of $43.5 million in Q1 2024.

• Operating cash outflow of $30.1 million for the quarter, indicating increased expenditure.

Financial Analyst

The increase in research and development (R&D) expenses—$30.9 million for Q1 2024 compared to $9.9 million in the prior year—highlights active investment by Summit Therapeutics in advancing its clinical programs, particularly the development of ivonescimab. This uptick in spending is consistent with a company in late-stage clinical trials, where costs tend to rise as the trials progress and enrollment numbers increase.

The company's net loss has increased on a GAAP basis to $43.5 million from $542.3 million, which includes a significant in-process research and development expense from the previous year. While the net loss per share has decreased to $0.06, indicating a dilution of shares, it's important for investors to note the underlying reason for this increase in net loss and not view it in isolation.

The cash runway guidance through Q1 2025 suggests the company has sufficient liquidity to support operations for the near term. This information is vital for investors when assessing the risk associated with the company's ability to continue funding its ongoing trials without the immediate need for additional financing, which could lead to further dilution of shares.

Oncology Clinical Trial Expert

The reported intracranial response rate of 34% in non-small cell lung cancer (NSCLC) patients with brain metastases is remarkable and could represent a significant advancement in treatment options for this patient population. The median intracranial progression-free survival (PFS) of 19.3 months is also noteworthy, as brain metastases are a common and challenging complication in lung cancer. These results could potentially lead to a strong value proposition for ivonescimab if the Phase III trials corroborate Phase II outcomes.

The enrollment progress in the HARMONi and HARMONi-3 Phase III clinical trials will be critical to monitor. Timely completion of enrollment can signal towards a potential for earlier-than-expected data readouts, which could influence the stock performance positively. However, investors should also be cognizant of the risks inherent in clinical trials where unfavorable data could significantly impact the stock's trajectory.

Biotechnology Industry Analyst

The appointment of Dr. Mostafa Ronaghi to the Board of Directors brings in valuable expertise from the genomics field, potentially benefiting Summit's strategic direction. His background in next-generation sequencing (NGS) could be particularly advantageous if Summit Therapeutics decides to integrate NGS or other personalized medicine approaches into the development of ivonescimab. While this is not directly related to the current financial performance, it can have long-term implications on the company's innovation capabilities and strategic partnerships.

Furthermore, the non-GAAP financial results, which exclude certain items like in-process research and development expenses, provide a different perspective on the company's operational efficiency. These results can help investors understand the core operational cost structure without the volatility caused by non-recurring expenses or accounting adjustments.

HARMONi and HARMONi-3 Enrollment Continues

Promising Intracranial Anti-Tumor Activity and Safety Data Featured at the 2024 European Lung Cancer Congress with Ivonescimab Alone or Combined with Chemotherapy Achieving 34% Intracranial Responses; Median Intracranial PFS of 19.3 months in NSCLC Patients with Brain Metastases

Board of Directors Strengthened with the Addition of Dr. Mostafa Ronaghi

Updated Guidance of Cash Runway for Operations through Q1 2025

MIAMI--(BUSINESS WIRE)-- Summit Therapeutics Inc. (NASDAQ: SMMT) ("Summit," "we," or the "Company") today reports its financial results and provides an update on its operational progress for the first quarter ended March 31, 2024.

Operational & Corporate Updates

• Our operational progress continues with ivonescimab (SMT112), an investigational, potentially first-in-class bispecific antibody combining the effects of immunotherapy via a blockade of PD-1 with the anti-angiogenesis effects associated with blocking VEGF into a single molecule:
  • January 2024 marked the one-year anniversary of the close of our Collaboration and License Agreement with Akeso Inc. (Akeso) for ivonescimab (SMT112), with which over 1,600 have been treated in clinical studies globally. Summit received rights to develop and commercialize ivonescimab in the United States, Canada, Europe, and Japan, while Akeso retains development and commercialization rights for the rest of the world, including China. Since in-licensing ivonescimab, we launched late-stage clinical development in non-small cell lung cancer (NSCLC) and are actively enrolling two registrational Phase III trials in the following proposed indications:
    • HARMONi Phase III Trial: Ivonescimab combined with chemotherapy in patients with epidermal growth factor receptor (EGFR)-mutated, locally advanced or metastatic non-squamous NSCLC who have progressed after treatment with a third-generation EGFR tyrosine kinase inhibitor (TKI), with enrollment completion expected in the second half of 2024, and
    • HARMONi-3 Phase III Trial: Ivonescimab combined with chemotherapy in first-line metastatic squamous NSCLC patients, with the first patient having been treated in the fourth quarter of 2023.
  • In January 2024, followed by a presentation at ELCC 2024 in March 2024, Akeso announced updates from its Phase II AK112-201 trial data. Notably, in patients with first line advanced or metastatic squamous NSCLC without actionable genomic alterations (Cohort 1, n=63), a median PFS (mPFS) of 11.1 months (95% CI: 9.5 – 16.3 months) was observed; median overall survival (mOS) was not yet reached after a median follow-up time of 22.1 months. Additionally, in patients with advanced or metastatic NSCLC whose tumors are positive for EGFR mutations and have progressed following an EGFR TKI (Cohort 2, n=19), mPFS of 8.5 months (95% CI: 4.1 – 12.9 months) was observed, and a mOS of 22.5 months (95% CI: 10.4 - NE) was achieved after a median follow-up time of 25.8 months. Treatment-related adverse events leading to discontinuation of ivonescimab was 11% and 0% in the two populations, respectively; there were no treatment-related adverse events leading to a patient's death in either setting. AK112-201 is a study of Chinese subjects receiving ivonescimab plus chemotherapy conducted and analyzed by our partners, Akeso, of which the updated data supports Summit's HARMONi and HARMONi-3 Phase III clinical trials.
  • Also at ELCC 2024, Summit and Akeso highlighted promising ivonescimab Phase II data in NSCLC patients with brain metastases. The analysis consisted of 35 patients with advanced or metastatic NSCLC who had asymptomatic brain metastases at baseline and received ivonescimab alone or in combination with chemotherapy. Across all patients analyzed, an intracranial response rate of 34% was achieved, including 23% complete responses, by response assessment in neuro-oncology (RANO) criteria and median intracranial progression-free survival was 19.3 months. All patients who did not achieve a response demonstrated stable disease or non-progression; no patients experienced intracranial disease progression at the time of the initial follow-up scan. No cases of intracranial bleeding complications were observed in these patients. The data was from patients participating in AK112-201, described above, or AK112-202, in which ivonescimab was delivered as monotherapy.
  • In April 2024, the Company appointed Mostafa Ronaghi, PhD, to its Board of Directors. Dr. Ronaghi is the Co-Founder and Executive Board Member of Cellanome. He was previously the Chief Technology Officer at Illumina, Inc. from 2008 to 2021. While at Illumina, in 2016, Dr. Ronaghi co-founded GRAIL, a next-gen liquid biopsy platform for cancer detection. Prior to Illumina, Dr. Ronaghi was Principal Investigator at the Stanford Genome Technology Center from 1999 to 2008. Throughout his prolific career, Dr. Ronaghi co-founded several companies which sought to increase the understanding of particular diseases through next-generation sequencing (NGS), advanced genotyping, or other advanced technology. Dr. Ronaghi holds a Ph.D. in Biotechnology from Royal Institute of Technology in Stockholm, Sweden.

Financial Highlights

Cash and Cash Equivalents, Restricted Cash, & Short-term Investments

• Aggregate cash and cash equivalents, restricted cash, and short-term investments were $157.0 million and $186.2 million at March 31, 2024 and December 31, 2023, respectively. Research and development tax credits were $1.2 million and $1.8 million at March 31, 2024 and December 31, 2023, respectively.
  • Our short-term investments consist of U.S. treasury securities.
  • Operating cash outflow for the three months ended March 31, 2024 and 2023 was $30.1 million and $13.1 million, respectively.

GAAP and Non-GAAP Research and Development (R&D) Expenses

• R&D expenses according to generally accepted accounting principles in the U.S. (“GAAP”) were $30.9 million for the first quarter of 2024, compared to $9.9 million for the same period of the prior year.

• Non-GAAP R&D expenses were $28.5 million for the first quarter of 2024, compared to $8.8 million for the same period of the prior year.

GAAP and Non-GAAP General and Administrative (G&A) Expenses

• GAAP G&A expenses were $11.7 million for the first quarter of 2024, compared to $6.9 million for the same period of the prior year.

• Non-GAAP G&A expenses were $4.6 million for the first quarter of 2024, compared to $5.2 million for the same period of the prior year.

GAAP and Non-GAAP Operating Expenses

• GAAP operating expenses were $42.6 million for the first quarter of 2024, compared to $537.7 million for the same period of the prior year. First quarter 2023 GAAP operating expenses included $520.9M in-process research and development expense that was primarily related to our upfront milestone payments pursuant to the License Agreement with Akeso.

• Non-GAAP operating expenses were $33.1 million for the first quarter of 2024, compared to $14.0 million for the same period of the prior year. The increase is primarily due to expansion of clinical study and development costs related to ivonescimab and increases in people cost as we continue to build out our R&D team.

GAAP and Non-GAAP Net Loss

• GAAP net loss in the first quarter of 2024 and 2023 was $43.5 million or $0.06 per basic and diluted share, and $542.3 million or $1.43 per basic and diluted share, respectively.

• Non-GAAP net loss in the first quarter of 2024 and 2023 was $34.0 million or $0.05 per basic and diluted share, and $18.6 million or $0.04 per basic and diluted share, respectively.

Use of Non-GAAP Financial Results

This release includes measures that are not in accordance with U.S. generally accepted accounting principles (“Non-GAAP measures”). These Non-GAAP measures should be viewed in addition to, and not as a substitute for, Summit's reported GAAP results, and may be different from Non-GAAP measures used by other companies. In addition, these Non-GAAP measures are not based on any comprehensive set of accounting rules or principles. Summit management uses these non-GAAP measures for internal budgeting and forecasting purposes and to evaluate Summit’s financial performance. Summit management believes the presentation of these Non-GAAP measures is useful to investors for comparing prior periods and analyzing ongoing business trends and operating results. For further information regarding these Non-GAAP measures, please refer to the tables presenting reconciliations of our Non-GAAP results to our U.S. GAAP results and the “Notes on our Non-GAAP Financial Information” at the end of this press release.

First Quarter 2024 Earnings Call

Summit will host an earnings call this morning, Wednesday, May 1, 2024, at 9:00am ET. The conference call will be accessible by dialing (888) 210-3702 (toll-free domestic) or (646) 960-0191 (international) using conference code 5785899. A live webcast and instructions for joining the call are accessible through Summit’s website www.smmttx.com. An archived edition of the webcast will be available on our website after the call.

About Ivonescimab

Ivonescimab, known as SMT112 in Summit’s license territories, the United States, Canada, Europe, and Japan, and as AK112 in China and Australia, is a novel, potential first-in-class investigational bispecific antibody combining the effects of immunotherapy via a blockade of PD-1 with the anti-angiogenesis effects associated with blocking VEGF into a single molecule. Ivonescimab displays unique cooperative binding to each of its intended targets with higher affinity when in the presence of both PD-1 and VEGF.

This could differentiate ivonescimab as there is potentially higher expression (presence) of both PD-1 and VEGF in tumor tissue and the tumor microenvironment (TME) as compared to normal tissue in the body. Ivonescimab’s tetravalent structure (four binding sites) enables higher avidity (accumulated strength of multiple binding interactions) in the tumor microenvironment with over 18-fold increased binding affinity to PD-1 in the presence of VEGF in vitro, and over 4-times increased binding affinity to VEGF in the presence of PD-1 in vitro.¹ This tetravalent structure, the intentional novel design of the molecule, and bringing these two targets into a single bispecific antibody with cooperative binding qualities have the potential to direct ivonescimab to the tumor tissue versus healthy tissue. The intent of this design, together with a half-life of 6 to 7 days,¹ is to improve upon previously established efficacy thresholds, in addition to side effects and safety profiles associated with these targets.

Ivonescimab was discovered by Akeso Inc. (HKEX Code: 9926.HK) and is currently engaged in multiple Phase III clinical trials. Over 1,600 patients have been treated with ivonescimab in clinical studies globally. Summit has begun its clinical development of ivonescimab in non-small cell lung cancer (NSCLC), commencing enrollment in 2023 in two Phase III clinical trials, HARMONi and HARMONi-3.

HARMONi is a Phase III clinical trial which intends to evaluate ivonescimab combined with chemotherapy compared to a placebo plus chemotherapy in patients with EGFR-mutated, locally advanced or metastatic non-squamous NSCLC who have progressed after treatment with a third-generation EGFR TKI (e.g., osimertinib).

HARMONi-3 is a Phase III clinical trial which is designed to evaluate ivonescimab combined with chemotherapy compared to pembrolizumab combined with chemotherapy in patients with first-line metastatic squamous NSCLC.

Ivonescimab is an investigational therapy that is not approved by any regulatory authority.

About Lung Cancer

Lung cancer is believed to impact approximately 600,000 people across the United States, United Kingdom, Spain, France, Italy, Germany, and Japan.² NSCLC is the most prevalent type of lung cancer and represents approximately 80% to 85% of all incidences.³ Among patients with non-squamous NSCLC, approximately 15% have EGFR-sensitizing mutations in the United States and Europe.⁴ Patients with squamous histology represent approximately 25% to 30% of NSCLC patients.⁵

About Summit Therapeutics

Summit Therapeutics Inc. is a biopharmaceutical oncology company focused on the discovery, development, and commercialization of patient-, physician-, caregiver- and societal-friendly medicinal therapies intended to improve quality of life, increase potential duration of life, and resolve serious unmet medical needs.

Summit was founded in 2003 and our shares are listed on the Nasdaq Global Market (symbol "SMMT"). We are headquartered in Miami, Florida, and we have additional offices in Menlo Park, California, and Oxford, UK.

For more information, please visit https://www.smmttx.com and follow us on X @summitplc.

Summit Forward-looking Statements

Any statements in this press release about the Company’s future expectations, plans and prospects, including but not limited to, statements about the clinical and preclinical development of the Company’s product candidates, entry into and actions related to the Company’s partnership with Akeso Inc., the Company's anticipated spending and cash runway, the therapeutic potential of the Company’s product candidates, the potential commercialization of the Company’s product candidates, the timing of initiation, completion and availability of data from clinical trials, the potential submission of applications for marketing approvals, potential acquisitions, and other statements containing the words "anticipate," "believe," "continue," "could," "estimate," "expect," "intend," "may," "plan," "potential," "predict," "project," "should," "target," "would," and similar expressions, constitute forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those indicated by such forward-looking statements as a result of various important factors, including the results of our evaluation of the underlying data in connection with the development and commercialization activities for ivonescimab, the outcome of discussions with regulatory authorities, including the Food and Drug Administration, the uncertainties inherent in the initiation of future clinical trials, availability and timing of data from ongoing and future clinical trials, the results of such trials, and their success, and global public health crises, that may affect timing and status of our clinical trials and operations, whether preliminary results from a clinical trial will be predictive of the final results of that trial or whether results of early clinical trials or preclinical studies will be indicative of the results of later clinical trials, whether business development opportunities to expand the Company’s pipeline of drug candidates, including without limitation, through potential acquisitions of, and/or collaborations with, other entities occur, expectations for regulatory approvals, laws and regulations affecting government contracts and funding awards, availability of funding sufficient for the Company’s foreseeable and unforeseeable operating expenses and capital expenditure requirements and other factors discussed in the "Risk Factors" section of filings that the Company makes with the Securities and Exchange Commission. Any change to our ongoing trials could cause delays, affect our future expenses, and add uncertainty to our commercialization efforts, as well as to affect the likelihood of the successful completion of clinical development of ivonescimab. Accordingly, readers should not place undue reliance on forward-looking statements or information. In addition, any forward-looking statements included in this press release represent the Company’s views only as of the date of this release and should not be relied upon as representing the Company’s views as of any subsequent date. The Company specifically disclaims any obligation to update any forward-looking statements included in this press release.

Summit Therapeutics Inc.
GAAP Condensed Consolidated Statements of Operations
(in millions, except per share data)
		Unaudited
		Three Months Ended March 31,
		Q1 2024				Q1 2023
Operating expenses:
Research and development		$	30.9			$	9.9
General and administrative			11.7				6.9
In-process research and development			—				520.9
Total operating expenses			42.6				537.7
Other operating income, net			0.2				0.6
Operating loss			(42.4	)			(537.1	)
Other expense, net			(1.1	)			(5.2	)
Net loss		$	(43.5	)		$	(542.3	)
Basic and diluted loss per share		$	(0.06	)		$	(1.43	)

Summit Therapeutics Inc.
GAAP Condensed Consolidated Balance Sheet Information
(in millions)
		Unaudited March 31, 2024				December 31, 2023
Cash and cash equivalents, restricted cash, and short-term investments		$	157.0			$	186.2
Total assets		$	176.8			$	202.9
Total liabilities		$	132.6			$	125.3
Total stockholders' equity		$	44.2			$	77.7

Summit Therapeutics Inc.
GAAP Condensed Consolidated Statement of Cash Flows Information
(in millions)
		Unaudited
		Three Months Ended March 31,
		2024				2023
Net cash used in operating activities		$	(30.1	)		$	(13.1	)
Net cash provided by (used in) investing activities			19.8				(645.1	)
Net cash provided by financing activities			0.5				80.1
Effect of exchange rate changes on cash			—				0.4
Decrease in cash and cash equivalents		$	(9.8	)		$	(577.7	)

Summit Therapeutics Inc.
Schedule Reconciling Selected Non-GAAP Financial Measures
(in millions, except per share data)
		Unaudited
		Three Months Ended March 31,
		2024				2023
Reconciliation of GAAP to Non-GAAP Research and Development Expense
GAAP Research and development		$	30.9			$	9.9
Stock-based compensation (Note 1)			(2.4	)			(1.1	)
Non-GAAP Research and development		$	28.5			$	8.8
Reconciliation of GAAP to Non-GAAP General and Administrative Expenses
GAAP General and administrative		$	11.7			$	6.9
Stock-based compensation (Note 1)			(7.1	)			(1.7	)
Non-GAAP General and administrative		$	4.6			$	5.2
Reconciliation of GAAP to Non-GAAP In-Process Research and Development Expenses
GAAP In-process research and development		$	—			$	520.9
In-process research and development (Note 2)			—				(520.9	)
Non-GAAP In-process research and development		$	—			$	—
Reconciliation of GAAP Net Loss to Non-GAAP Net Loss
GAAP Net Loss		$	(43.5	)		$	(542.3	)
Stock-based compensation (Note 1)			9.5				2.8
In-process research and development (Note 2)			—				520.9
Non-GAAP Net Loss		$	(34.0	)		$	(18.6	)
Reconciliation of GAAP Net Loss to Non-GAAP Net Loss Per Common Share
GAAP Net Loss Per Basic and Diluted Common Share		$	(0.06	)		$	(1.43	)
Stock-based compensation (Note 1)			0.01				0.01
In-process research and development (Note 2)			—				1.38
Non-GAAP Net loss Per Basic and Diluted Common Share		$	(0.05	)		$	(0.04	)
Basic and Diluted Common Shares			701.8				378.2

Summit Therapeutics Inc.
Schedule Reconciling Selected Non-GAAP Financial Measures
(in millions)
		Unaudited
		Three Months Ended
		March 31, 2024				December 31, 2023				September 31, 2023				June 30, 2023				March 31, 2023
Reconciliation of GAAP to Non-GAAP Operating Expenses
GAAP Operating expenses		$	42.6			$	36.4			$	20.8			$	15.8			$	537.7
Stock-based compensation (Note 1)			(9.5	)			(8.7	)			(0.7	)			(1.9	)			(2.8	)
In-process research and development (Note 2)			—				—				—				—				(520.9	)
Non-GAAP Operating Expense		$	33.1			$	27.7			$	20.1			$	13.9			$	14.0
Reconciliation of GAAP Net Loss to Non-GAAP Net Loss
GAAP Net Loss		$	(43.5	)		$	(36.6	)		$	(21.3	)		$	(14.7	)		$	(542.3	)
Stock-based compensation (Note 1)			9.5				8.7				0.7				1.9				2.8
In-process research and development (Note 2)			—				—				—				—				520.9
Non-GAAP Net Loss		$	(34.0	)		$	(27.9	)		$	(20.6	)		$	(12.8	)		$	(18.6	)

Summit Therapeutics, Inc.
Notes on our Non-GAAP Financial Information

Non-GAAP financial measures adjust GAAP financial measures for the items listed below. These Non-GAAP measures should be viewed in addition to, and not as a substitute for Summit's reported GAAP results, and may be different from Non-GAAP measures used by other companies. In addition, these Non-GAAP measures are not based on any comprehensive set of accounting rules or principles. Summit management uses these non-GAAP measures for internal budgeting and forecasting purposes and to evaluate Summit’s financial performance. Summit management believes the presentation of these Non-GAAP measures is useful to investors for comparing prior periods and analyzing ongoing business trends and operating results.

Each of non-GAAP Research and Development Expense, non-GAAP General and Administrative Expenses, non-GAAP Operating Expenses, Non-GAAP Net Loss and Non-GAAP EPS differ from GAAP in that such measures exclude the non-cash charges and costs associated with stock-based compensation. In addition, (i) non-GAAP In-Process Research and Development Expenses, non-GAAP Operating Expenses, non-GAAP Net Loss and non-GAAP EPS each exclude certain one-time charges associated with in-process research and development and (ii) non-GAAP In-Process Research and Development Expenses excludes certain in-process research and development charges, in each case as described further in the notes below and as expressed in the tabular reconciliation presented above.

Note 1: Stock-based compensation is a non-cash charge and costs calculated for this expense can vary year-over-year depending on the stock price of awards on the date of grant as well as the timing of compensation award arrangements.

Note 2: In-process research and development represents a one-time charge associated with the Company's in-licensing of ivonescimab from Akeso.

Appendix: Glossary of Critical Terms Contained Herein

Affinity – Affinity is the strength of binding of a molecule, such as a protein or antibody, to another molecule, such as a ligand.

Avidity – Avidity is the accumulated strength of multiple binding interactions.

Angiogenesis – Angiogenesis is the development, formation, and maintenance of blood vessel structures. Without sufficient blood flow, tissue may experience hypoxia (insufficient oxygen) or lack of nutrition, which may cause cell death.⁶

Cooperative binding – Cooperative binding occurs when the number of binding sites on the molecule that can be occupied by a specific ligand (e.g., protein) is impacted by the ligand’s concentration. For example, this can be due to an affinity for the ligand that depends on the amount of ligand bound or the binding strength of the molecule to one ligand based on the concentration of another ligand, increasing the chance of another ligand binding to the compound.⁷

Immunotherapy – Immunotherapy is a type of treatment, including cancer treatments, that help a person’s immune system fight cancer. Examples include anti-PD-1 therapies.⁸

Intracranial - Within the cranium or skull.

PD-1 – Programmed cell Death protein 1 is a protein on the surface of T cells and other cells. PD-1 plays a key role in reducing the regulation of ineffective or harmful immune responses and maintaining immune tolerance. However, with respect to cancer tumor cells, PD-1 can act as a stopping mechanism (a brake or checkpoint) by binding to PD-L1 ligands that exist on tumor cells and preventing the T cells from targeting cancerous tumor cells.⁹

PD-L1 – Programmed cell Death Ligand 1 is expressed by cancerous tumor cells as an adaptive immune mechanism to escape anti-tumor responses, thus believed to suppress the immune system’s response to the presence of cancer cells.¹⁰

PD-L1 TPS – PD-L1 Tumor Proportion Score represents the percentage of tumor cells that express PD-L1 proteins.

PFS – Progression-Free Survival.

RANO – Response Assessment in Neuro-Oncology, the standard for assessing the response of a brain or spinal cord tumor to therapy.

SQ-NSCLC – Non-small cell lung cancer tumors of squamous histology.

T Cells – T cells are a type of white blood cell that is a component of the immune system that, in general, fights against infection and harmful cells like tumor cells.¹¹

Tetravalent – A tetravalent molecule has four binding sites or regions.

Tumor Microenvironment – The tumor microenvironment is the ecosystem that surrounds a tumor inside the body. It includes immune cells, the extracellular matrix, blood vessels and other cells, like fibroblasts. A tumor and its microenvironment constantly interact and influence each other, either positively or negatively.¹²

VEGF – Vascular Endothelial Growth Factor is a signaling protein that promotes angiogenesis.¹³

____________________
1	Zhong, et al, SITC 2023
2	American Cancer Society: www.cancer.org/cancer/types/lung-cancer/about/key-statistics.html. Accessed April 2024; World Health Organization: International Agency for Research on Cancer, Globocan data by country (UK, Spain, France, Italy, Germany); Japan National Cancer Registry.
3	Schabath MB, Cote ML. Cancer Progress and Priorities: Lung Cancer. Cancer Epidemiology, Biomarkers & Prevention. (2019).
4	About EGFR-Positive Lung Cancer | Navigating EGFR (lungevity.org).
5	Schabath MB, Cote ML. Cancer Progress and Priorities: Lung Cancer. Cancer Epidemiology, Biomarkers & Prevention. (2019).
6	Shibuya M. Vascular Endothelial Growth Factor (VEGF) and Its Receptor (VEGFR) Signaling in Angiogenesis: A Crucial Target for Anti- and Pro-Angiogenic Therapies. Genes Cancer. 2011 Dec;2(12):1097-105
7	Stefan MI, Le Novère N. Cooperative binding. PLoS Comput Biol. 2013;9(6)
8	US National Cancer Institute, a part of the National Institute of Health (NIH). https://www.cancer.gov/about-cancer/treatment/types/immunotherapy. Accessed April 2024.
9	Han Y, et al. PD-1/PD-L1 Pathway: Current Researches in Cancer. Am J Cancer Res. 2020 Mar 1;10(3):727-742.
10	Han Y, et al. PD-1/PD-L1 Pathway: Current Researches in Cancer. Am J Cancer Res. 2020 Mar 1;10(3):727-742.
11	Cleveland Clinic. https://my.clevelandclinic.org/health/body/24630-t-cells. Accessed April 2024.
12	MD Anderson Cancer Center. https://www.mdanderson.org/cancerwise/what-is-the-tumor-microenvironment-3-things-to-know.h00-159460056.html. Accessed April 2024.
13	Shibuya M. Vascular Endothelial Growth Factor (VEGF) and Its Receptor (VEGFR) Signaling in Angiogenesis: A Crucial Target for Anti- and Pro-Angiogenic Therapies. Genes Cancer. 2011 Dec;2(12):1097-105.

 

View source version on businesswire.com: https://www.businesswire.com/news/home/20240501878504/en/

Contact Summit Investor Relations:

Dave Gancarz

Chief Business & Strategy Officer



Nathan LiaBraaten

Senior Director, Investor Relations



investors@smmttx.com

Source: Summit Therapeutics Inc.

FAQ

What is Summit Therapeutics' stock symbol?

Summit Therapeutics Inc.'s stock symbol is NASDAQ: SMMT.

What is the focus of Summit Therapeutics' operational progress?

Summit Therapeutics is focused on advancing ivonescimab (SMT112) in late-stage clinical development for NSCLC.

Who was appointed to Summit Therapeutics' Board of Directors in April 2024?

Dr. Mostafa Ronaghi was appointed to Summit Therapeutics' Board of Directors in April 2024.

How much cash and cash equivalents does Summit Therapeutics hold as of March 31, 2024?

Summit Therapeutics holds $157.0 million in cash and cash equivalents as of March 31, 2024.