NC-410

Prioritize and focus resources on LNCB74 (B7-H4 ADC) with a planned IND submission by year-endCash of approximately $75 million expected to fund operations into second half of 2026 BELTSVILLE, Md., Nov. 07, 2024 (GLOBE NEWSWIRE) -- NextCure, Inc. (Nasdaq: NXTC), a clinical-stage biopharmaceutical company committed to discovering and developing novel, first-in-class, and best-in-class therapies to treat cancer, today provided a business update and reported third-quarter 2024 financial results. “The November SITC presentation of LNCB74 preclinical data will highlight the differentiation of our B7-H4 ADC from other ADC’s that also target B7-H4. We plan to file an IND in the fourth quarter of this year and advance into Phase 1, shortly following receipt of an FDA safe-to-proceed letter,” said Michael Richman, NextCure’s president and CEO. “Additionally, while the NC410 combo has shown encouraging Phase 1b clinical activity in both ovarian cancer and CRC patients, we plan to conclude the current trial and seek a partner to advance the program, allowing us to focus our resources on advancing the development of LNCB74.” Business Highlights and Near-Term Milestones LNCB74 (B7-H4 ADC) Leveraging LigaChem Biosciences, Inc. glucuronidase cleavable site-specific linkage as part of a collaboration agreement that includes a 50-50 cost sharing of external development expenses and certain internal cost sharing associated with the development of the antibody- drug conjugate (ADC) program.Preclinical data from LNCB74 (B7-H4 ADC) will be presented at the Society of Immunotherapy of Cancer (SITC) annual meeting in November.Planned submission of an Investigational New Drug (IND) application in the fourth quarter of this year. NC410 (LAIR-2 fusion) Additional colorectal cancer (CRC) patient Phase 1b clinical data along with biomarker data supporting mechanism of action to be presented at SITC annual meeting in November.As of October 14, 2024 (the cut-off date), 11 patients (4 with ovarian cancer and 7 with CRC) remain in the Phase 1b study evaluating NC410 in combination with pembrolizumab and will continue to be monitored while the study concludes.As of the cut-off date, the response rate for the ovarian cancer patients that were immune checkpoint inhibitor (ICI) naïve was 25% based on 5 out of 20 patients, which consisted of 2 partial responses (PRs) at 200 mg, and 3 PRs at 100mg in ICI naïve.As of the cut-off date, the 100 mg cohort CRC response rate was 8.3% based on 3 out of 36 patients, which consisted of 3 PRs in ICI naïve, MSS/microsatellite instability-low with a disease control rate (DCR) of 47% (17/36), median disease control (mDC) duration of 8.5 months, and median duration of response of 15.2 months. A 200 mg CRC cohort of 7 showed no clinical responses with a DCR of 86% (6/7) and a mDC duration of 8.3 months.Will seek a partner or pursue third party financing to advance NC410 in further clinical trials. Preclinical Non-Oncology Programs Seeking Third Party Financing NC181 (ApoE4), a humanized antibody for the treatment of Alzheimer’s disease (AD). In preclinical AD animal models, NC181 has demonstrated amyloid clearance, prevention of amyloid deposition, plaque clearance and reduced neuroinflammation.NC605 (Siglec-15), a humanized antibody for the treatment of osteogenesis Imperfecta (OI). Preclinical data reported that NC605 treatment reduced bone loss and enhanced bone quality in mice with OI.Both programs could lead to IND filings within 12 to 18 months if financial support from third parties is secured. Financial Results for Quarter Ended September 30, 2024 Cash, cash equivalents, and marketable securities as of September 30, 2024 were $75.3 million as compared to $108.3 million as of December 31, 2023. The decrease of $33.0 million was primarily due to cash used to fund operations. NextCure expects financial resources to fund operating expenses and capital expenditures into the second half of 2026.Research and development expenses were $8.8 million for the three months ended September 30, 2024, as compared to $11.0 million for the three months ended September 30, 2023. Net costs on the LNCB74 program were more than offset by lower costs on other programs and preclinical development and lower personnel-related costs.General and administrative expenses were $3.7 million for the three months ended September 30, 2024, as compared to $4.6 million for the three months ended September 30, 2023. The decrease of $0.9 million was primarily related to lower payroll, lower stock compensation expense and lower insurance costs.Net loss was $11.5 million for the three months ended September 30, 2024, as compared to a net loss of $14.3 million for the three months ended September 30, 2023. About NextCure, Inc. NextCure is a clinical-stage biopharmaceutical company that is focused on advancing innovative medicines that treat cancer patients that do not respond to, or have disease progression on, current therapies, through the use of differentiated mechanisms of actions including antibody-drug conjugates, antibodies and proteins. We focus on advancing therapies that leverage our core strengths in understanding biological pathways and biomarkers, the interactions of cells, including in the tumor microenvironment, and the role each interaction plays in a biologic response. www.nextcure.com Forward-Looking Statements Some of the statements contained in this press release are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including with respect to funding for our operations, objectives and expectations for our business, operations and financial performance and condition, including the progress and results of clinical trials, development plans and upcoming milestones regarding our therapies. Any statements contained herein that are not statements of historical fact may be deemed to be forward-looking statements. In some cases, you can identify forward-looking statements by terminology such as “aim,” “anticipate,” “assume,” “believe,” “continue,” “could,” “should,” “due,” “estimate,” “expect,” “intend,” “hope,” “may,” “objective,” “plan,” “predict,” “potential,” “positioned,” “seek,” “target,” “towards,” “forward,” “later,” “will,” “would” and other similar expressions that are predictions of or indicate future events and future trends, or the negative of these terms or similar language. Forward-looking statements involve substantial risks and uncertainties that could cause actual results to differ materially from those projected in any forward-looking statement. Such risks and uncertainties include, among others: positive results in preclinical studies may not be predictive of the results of clinical trials; NextCure’s limited operating history and not having any products approved for commercial sale; NextCure’s history of significant losses; NextCure’s need and ability to obtain additional financing on acceptable terms or at all; risks related to clinical development, marketing approval and commercialization; and NextCure’s dependence on key personnel. More detailed information on these and additional factors that could affect NextCure’s actual results are described under the heading “Risk Factors” in NextCure’s most recent Annual Report on Form 10-K and in NextCure’s other filings with the Securities and Exchange Commission. You should not place undue reliance on any forward-looking statements. Forward-looking statements speak only as of the date of this press release, and NextCure assumes no obligation to update any forward-looking statements, even if expectations change. Selected Financial Information Selected Statement of Operations Items:Three Months Ended Nine Months Ended September 30, September 30,(in thousands, except share and per share amounts)2024 2023 2024 2023Operating expenses: Research and development$8,770 $11,010 $32,586 $36,104 General and administrative 3,725 4,608 12,165 15,743 Restructuring and asset impairment — — 2,542 — Loss from operations (12,495) (15,618) (47,293) (51,847)Other income, net 955 1,317 3,242 3,591 Net loss$(11,540) $(14,301) $(44,051) $(48,256)Net loss per common share - basic and diluted$(0.41) $(0.51) $(1.58) $(1.73)Weighted-average shares outstanding - basic and diluted 27,975,840 27,839,968 27,950,634 27,814,655 Selected Balance Sheet Items: September 30, December 31,(in thousands) 2024 2023Cash, cash equivalents, and marketable securities $75,308 $108,299 Total assets $90,345 $128,038 Accounts payable and accrued liabilities $8,672 $6,883 Total stockholders' equity $75,592 $114,421 Investor InquiriesTimothy Mayer, Ph.D.NextCure, Inc.Chief Operating Officer(240) 762-6486IR@nextcure.com

BELTSVILLE, MD, USA I November 05, 2024 I NextCure, Inc. (Nasdaq: NXTC), a clinical-stage biopharmaceutical company committed to discovering and developing novel, first-in-class and best-in-class therapies to treat cancer, today reports pre-clinical data from LNCB74, a B7-H4-targeting antibody-drug conjugate (ADC) being developed in partnership with LigaChem Biosciences (LCB) (KOSDAQ: 141080), and biomarker data from the NC410 combination study with pembrolizumab in patients with immune checkpoint inhibitor (ICI) naïve and refractory microsatellite stable (MSS)/microsatellite instability-low (MSI-L) colorectal cancer (CRC). The data will be presented during poster sessions at the Society for Immunotherapy of Cancer (SITC) annual meeting. “The preclinical data reported for LNCB74, our B7-H4 antibody-drug conjugate program, continue to reinforce its promise as a potential best-in-class therapeutic with advantages over other B7-H4 ADCs,” said Michael Richman, NextCure’s president and CEO. “We remain on track to submit an IND application to the FDA by year-end and intend to rapidly advance the program into clinical development.” Preclinical Data on LNCB74 B7-H4 Antibody Drug Conjugate (ADC) LNCB74 is a B7-H4 antibody conjugated to the microtubule disrupting payload monomethyl auristatin E (MMAE) with a drug-to-antibody ratio of 4 (DAR4). The ADC employs a glucuronidase-cleavable, site-specific linkage conjugated to an engineered cysteine in the antibody light chain via LigaChem Biosciences’ ConjuAll TM technology to increase stability in circulation, improve selective release of payload in tumor cells, and reduce payload release in non-tumor cells. LNCB74 incorporates an Fc mitigating mutation to minimize binding and uptake of LNCB74 by Fc receptor expressing immune cells. The ConjuAll technology, with its selective cleavage and release within tumor cells, combined with mitigation of off-target uptake via disabled Fc interactions, is engineered to improve the safety profile and therapeutic index of LNCB74 compared to other B7-H4 targeted ADCs. Key findings: Phase 1b Study of NC410 in Combination with Pembrolizumab The presentation includes additional clinical data for CRC patients from the Phase 1b portion of a Phase 1b/2 study evaluating NC410, a LAIR-2 fusion protein, in combination with pembrolizumab. The trial is evaluating the combination in ovarian cancer and ICI-naïve MSS/MSI-L CRC. Overall, the combination of NC410 and pembrolizumab continues to demonstrate clinical activity against MSS/MSI-L CRC, which is generally unresponsive to immunotherapy. Subjects who achieved clinical benefit of partial response or stable disease demonstrated durability of their responses that was clinically meaningful in this patient population. Key findings: Poster Presentation Details: Title : LNCB74 is a B7-H4 antibody-drug conjugate with a β-glucuronide linker-MMAE payload system to enhance therapeutic index in B7-H4 expressing cancers Lead Author : Shannon M. Kahan Abstract Number : 1051 Session Date & Time : Friday, November 8, 2024, 5:30 – 7:00 PM Title : NC410 in combination with pembrolizumab improves anti-tumor responses by promoting collagen remodeling and tumor immunity in advanced ICI naive MSS/MSI-L CRC Lead Author : Alina Barbu Abstract Number : 632 Session Date & Time : Saturday, November 9, 2024, 7:10 – 8:30 PM About NextCure, Inc. NextCure is a clinical-stage biopharmaceutical company that is focused on advancing innovative medicines that treat cancer patients that do not respond to, or have disease progression on, current therapies, through the use of differentiated mechanisms of actions including antibody-drug conjugates, antibodies and proteins. We focus on advancing therapies that leverage our core strengths in understanding biological pathways and biomarkers, the interactions of cells, including in the tumor microenvironment, and the role each interaction plays in a biologic response. http://www.nextcure.com SOURCE: NextCure