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NextCure Provides Business Update - SIM0505 (CDH6 ADC) Phase 1 dose escalation data update anticipated in Q2 2026 - LNCB74 (B7-H4 ADC) Phase 1 dose escalation expanded into higher dose cohorts BELTSVILLE, MD

Key Takeaway: NextCure, Inc. has provided a business update highlighting its antibody drug conjugate programs, particularly SIM0505 and LNCB74. The company anticipates Phase 1 dose escalation data for SIM0505 in Q2 2026, while LNCB74's studies are ongoing. NextCure maintains a cash position that is crucial for supporting its continued operations and development efforts. Forward-looking statements indicate potential risks related to clinical trials and the company's financial health.
Price reaction · baseline $12.65 (2026-01-22 close) · hit after-hours · 2 other NXTC headline(s) in the window, move may be shared
day 0 close
-5.8%
day 1
-3.6%
day 3 · peak
-15.4%

Market Sentiment Analysis

POSITIVE FACTORS

  • NextCure announces upcoming preliminary data for its ADC program SIM0505.
  • LNCB74 continues in Phase 1 dose escalation, indicating ongoing clinical progress.
  • Company has a solid algorithm for potential treatment of advanced solid tumors.

CONCERNS & RISKS

  • NextCure has a history of significant losses impacting its financial stability.
  • The company requires additional financing, which could affect future operations.
  • Clinical development is subject to risks that could lead to unpredictable results.

BiopharmaWatch Analysis

From our catalyst data and publicly available data · not financial advice
Best trade, last catalyst
+66%
120-day peak, hindsight
Typical move
5.6%
average across 3 past catalysts
Cash runway
~6 mo
High dilution risk
Lead asset
NC318
Phase 2 · Advanced Non-small Cell Lung Cancer

Full Press Release Details

NextCure Provides Business Update
BELTSVILLE, MD - January 23, 2026 (GLOBE NEWSWIRE) - NextCure, Inc. (Nasdaq: NXTC), a clinical-stage biopharmaceutical company committed to developing novel therapies to treat cancer, today provided updates for its two antibody drug conjugate (ADC) programs and reported a preliminary year-end 2025 cash position.
SIM0505 (CDH6 ADC): Phase 1 dose escalation data expected in Q2 2026
SIM0505 is a novel ADC directed to cadherin-6 (CDH6 ADC), which is overexpressed in several cancers with limited expression in healthy tissues. SIM0505 features a proprietary topoisomerase 1 inhibitor (TOPOi) payload, designed for broad anti-tumor activity, fast systemic clearance and an improved potential therapeutic window.
LNCB74 (B7-H4 ADC): Ongoing Phase 1 dose escalation
LNCB74 is a novel ADC directed to B7-H4, overexpressed in several cancers with limited expression in healthy tissues. LNCB74 features a proprietary tumor-selective cleavable linker and a tubulin inhibitor monomethyl auristatin E (MMAE) payload.
Financial Position (unaudited) and Cash Runway
SIM0505 is a novel antibody drug conjugate (ADC) directed to cadherin-6 (CDH6 ADC), featuring a proprietary topoisomerase 1 inhibitor (TOPOi) payload. The ADC is designed for broad anti-tumor activity, fast systemic clearance and an improved potential therapeutic window. SIM0505 is being evaluated in an open-label, Phase 1 study for the potential treatment of advanced solid tumors. NextCure has global rights for SIM0505, excluding China, Hong Kong, Macau, and Taiwan which are retained by Simcere Zaiming.
LNCB74 is novel antibody drug conjugate (ADC) directed to B7-H4, featuring a proprietary tumor-selective cleavable linker and a tubulin inhibitor monomethyl auristatin E (MMAE) payload. LNCB74 is being evaluated in an open-label, Phase 1 study for the potential treatment of advanced solid tumors. NextCure shares global co-development rights with LigaChem Biosciences Inc through a 50-50 cost share arrangement.
About NextCure, Inc.
NextCure is a clinical-stage biopharmaceutical company that is focused on advancing innovative medicines that treat cancer patients who do not respond to, or have disease progression on, current therapies, through the use of targeted therapies including antibody-drug conjugates. We focus on advancing therapies that leverage our core strengths in understanding biological pathways and biomarkers, the interactions of cells within and beyond the tumor microenvironment, and the role each interaction plays in a biologic response.
Please visit "http://www.nextcure.com" for more information.
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 statements related to our cash runway 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," "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: market and other conditions, 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, including risks associated with reliance upon our collaborative partners and international vendors; NextCure's ability to maintain listing of its common stock on the Nasdaq Global Select Market; 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 for the year ended December 31, 2024 and Quarterly Report on Form 10-Q for the quarter ended September 30, 2025, 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.
Timothy Mayer, Ph.D.

Frequently Asked Questions

What is SIM0505 and its target?

SIM0505 is an ADC targeting cadherin-6, overexpressed in certain cancers.

When will Phase 1 data for SIM0505 be available?

Phase 1 dose escalation data for SIM0505 is expected in Q2 2026.

What does LNCB74 target?

LNCB74 is an ADC directed to B7-H4, prevalent in multiple cancers.

What type of linker does LNCB74 use?

LNCB74 features a proprietary tumor-selective cleavable linker in its design.

What is NextCure's focus as a company?

NextCure focuses on developing targeted therapies for cancer treatment.

Last updated: Jan 23, 2026