NCT07668154 SKB-571 Squamous cell carcinoma of head and neck metastatic Clinical Landscape Report 2026: Design, Endpoints, Sponsor and Readout Outlook

Turn a newly registered trial into a decision-ready landscape. This focused report examines NCT07668154—A Phase II Study to Evaluate the Efficacy and Safety of SKB571 in Recurrent or Metastatic HNSCC Participants—using PatSnap Clinical Trials MCP for protocol design and endpoint evidence, Drug & Asset MCP for mechanism and development context, and Company & Deal Intelligence MCP for sponsor background. Explore PatSnap MCP Servers to reproduce the workflow inside an AI research process.

MCP evidence snapshot: 20 July 2026; publication date: 20 July 2026. Trial records can change after the snapshot and should be rechecked before operational decisions.

Why NCT07668154 is a hot trial to watch

Squamous cell carcinoma of head and neck metastatic is increasingly segmented by mechanism, biomarker, treatment setting, geography and endpoint architecture. NCT07668154 is notable because it evaluates SKB-571 in a Phase 2 design while ORR as assessed by the investigator according to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. serves as the main decision variable. The critical question is whether the protocol can convert its rationale into a clinically interpretable and operationally credible readout.

PatSnap Clinical Trials MCP makes protocol fields machine-readable, while the companion asset and organization servers add development-status, target and sponsor context.

Trial landscape snapshot

Design and endpoint interpretation

The phase label is only the starting point. Allocation is N/A, masking is None (Open Label), and the intervention model is Single Group Assignment. Planned enrollment of 30 participants across China shapes statistical precision, execution risk and external validity. Interpretation should account for baseline risk, prior therapy, assessment schedule, missing-data handling and clinical relevance—not only statistical significance.

• Primary: ORR as assessed by the investigator according to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. (Up to approximately 24 months.)
• Secondary: Time from start of treatment to progression of disease (PD) or death, whichever occurs first, in patients with tumors. (Up to approximately 24 months.)
• Secondary: Time from the start of the first assessment of CR or PR in tumor patients to PD or death due to any reason. (Up to 24 months)
• Secondary: Assessed by the investigators as per RECIST v1.1 (Up to 24 months)
• Secondary: Time from start of treatment to death due to any reason. (Up to 24 months)

Benchmark readouts in the surrounding field

• A Phase 2, Open-label, Study of Vobramitamab Duocarmazine in Participants With Metastatic Castration-resistant Prostate Cancer and Other Solid Tumors (Phase 2): Part 1: Six-month Radiographic Progression Free Survival (rPFS) as Determined by the Investigator = 0.69 proportion of participants (95% Confidence Interval, 0.57 - 0.78); Part 1: Six-month Radiographic Progression Free Survival (rPFS) as Determined by the Investigator = 0.70 proportion of participants (95% Confidence Interval, 0.46 - 0.79)
• A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study of RDX-002 on Postprandial Triglycerides in Patients Discontinuing the Glucagon-like Peptide-1 (GLP-1) Agonists, Semaglutide, or Tirzepatide for the Treatment of Obesity (Phase 2): Incremental Postprandial Triglycerides (TG)(Mean) = 43.81 percent change (Standard Deviation, 92.373); Incremental Postprandial Triglycerides (TG)(Mean) = -51.91 percent change (Standard Deviation, 72.293)
• A Phase II Study to Evaluate the Delay in Ovulation Following Oral Levonorgestrel Plus Meloxicam Compared to Placebo in Obese But Normal Menstruating Women (Phase 2): Interval From First Dose to Evidence of Ovulation.(Mean) = 2.67 Number of days (Standard Deviation, 1.53); Interval From First Dose to Evidence of Ovulation.(Mean) = 4.0 Number of days (Standard Deviation, 0)

These indexed results are contextual benchmarks, not direct head-to-head evidence. Population, treatment line, endpoint definitions, follow-up and analysis sets may differ. Their value is to clarify the type and magnitude of evidence already visible in the competitive landscape.

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Asset and sponsor context

Drug & Asset context: SKB-571 (Phase 2; EGFR x c-Met)

Company & Deal Intelligence context: Sichuan Kelun Botai Biomedicine Co., Ltd. — China — http://www.kelun-biotech.com

The sponsor profile matters because scientific rationale alone does not determine development value. Manufacturing readiness, portfolio fit, geographic reach, partnering capacity and the ability to fund confirmatory development can decide whether a positive signal becomes a competitive asset.

White space around this program

• Sharper patient selection: prospective biomarker or phenotype definitions that identify who is most likely to benefit.
• Clinically interpretable endpoints: outcomes connecting activity with function, symptoms, survival or treatment burden.
• Sequencing evidence: comparative data after the most relevant contemporary standard of care.
• Broader external validity: evidence across additional geographies, demographic groups and real-world settings.
• Operational differentiation: a development path that closes the readout gap without sacrificing safety or durability.

What to monitor next

Monitor recruitment, enrollment changes, protocol amendments, endpoint hierarchy, primary-completion timing, first result indexing, asset ownership and sponsor partnerships. A change in endpoint, population or ownership can alter probability of success before a headline data release.

Bottom line

NCT07668154 is a focused lens on Squamous cell carcinoma of head and neck metastatic development. Its value will be determined by whether SKB-571 can convert the current design into evidence that is clinically meaningful, operationally credible and differentiated from indexed benchmark readouts.

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