NCT07716111 Retlirafusp alfa HER2 positive Gastroesophageal Junction Adenocarcinoma Clinical Landscape Report 2026: Design, Endpoints, Sponsor and Readout Outlook

Turn a newly registered trial into a decision-ready clinical landscape. This report examines NCT07716111 using PatSnap Clinical Trials MCP for protocol design and endpoint evidence, with Drug & Asset MCP and Company & Deal Intelligence MCP used as the companion asset and sponsor enrichment workflow. Explore PatSnap MCP Servers to reproduce the research sequence inside an AI workflow.

MCP evidence snapshot: 3 August 2026. Trial records, recruitment status and projected dates can change after the snapshot and should be rechecked before operational decisions.

Why NCT07716111 is a hot trial to watch

HER2 positive Gastroesophageal Junction Adenocarcinoma is being segmented by mechanism, treatment setting, geography and endpoint architecture. NCT07716111 is notable because it evaluates Retlirafusp alfa in a Phase 2 design sponsored by Third Affiliated Hospital of Nanjing Medical University. The main development question is whether the protocol can translate its rationale into a clinically interpretable and operationally credible readout.

Trial landscape snapshot

Protocol design and endpoint interpretation

This is a prospective, single-center, randomized controlled phase II clinical trial.It plans to enroll a total of 24 eligible patients with locally advanced gastric/gastroesophageal junction adenocarcinoma who are HER2-positive and have potential benefit from immunotherapy (PD-L1 CPS≥1, EBV-positive, or dMMR/MSI-H). All patients were randomly assigned to the following two groups in a 1:1 ratio. Group A:Trastuzumab Rezatecan Dosage: 4.8 mg/kg, intravenous infusion Frequency: Once every 3 weeks (Q3W) Retlirafusp alfa (SHR-1701) Dosage: 30 mg/kg, intravenous infusion Frequency: Once every 3 weeks (Q3W) Group B: Trastuzumab Rezatecan Dosage: 4.8 mg/kg, intravenous infusion Frequency: Once every 3 weeks (Q3W) Retlirafusp alfa (SHR-1701) Dosage: 30 mg/kg, intravenous infusion Frequency: Once every 3 weeks (Q3W) Pertuzumab biosimilar (Betta Pharma): 840mg at first usage; subsequent maintenance: 420mg per dose,Q3W The neoadjuvant treatment phas

Allocation is Randomized, masking is None (Open Label), and the intervention model is Parallel Assignment. Planned enrollment of [object Object] 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.

• Complete pathological response (pCR) rate (assessed within 4 weeks post-surgery) — The percentage of subjects achieving pathological complete response, defined as the absence of residual viable tumor cells in the primary tumor bed.

Readout outlook and evidence gap

The current protocol points to [object Object] as the best available readout proxy. Because this is an active or newly posted study, a trial-specific result citation is not included until a normalized clinical-trial-result record becomes available. That gap is itself operationally important: teams should monitor first result indexing, conference abstracts, protocol amendments and changes to the primary-completion date.

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Asset and sponsor context

Drug & Asset MCP profile: Retlirafusp alfa is indexed as Antibody fusion proteins, with target PDL1 x TGFBR2, mechanism PDL1 inhibitors, TGFBR2 inhibitors, and global highest development status Approved.

Company & Deal Intelligence MCP profile: Third Affiliated Hospital of Nanjing Medical University did not return an exact normalized organization match in this snapshot. The organization workflow adds identity, location, portfolio and partnering context where available.

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 determine 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.
• Comparator relevance: evidence against the most decision-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 the probability of success before a headline data release.

Bottom line

NCT07716111 provides a focused lens on HER2 positive Gastroesophageal Junction Adenocarcinoma development. Its value will be determined by whether Retlirafusp alfa can convert the current Phase 2 design into evidence that is clinically meaningful, operationally credible and differentiated from competing programs.

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