NCT07581834 Tamoxifen Citrate Early Stage Breast Carcinoma Clinical Landscape Report 2026: Design, Endpoints, Sponsor and Readout Outlook

Turn a newly registered trial into a decision-ready clinical landscape. This report examines NCT07581834 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: 24 July 2026. Trial records, recruitment status and projected dates can change after the snapshot and should be rechecked before operational decisions.

Why NCT07581834 is a hot trial to watch

Early Stage Breast Carcinoma is being segmented by mechanism, treatment setting, geography and endpoint architecture. NCT07581834 is notable because it evaluates Tamoxifen Citrate in a Phase 2 design sponsored by Fujian Cancer Hospital. 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 study is a multicenter, prospective, randomized, open-label clinical study to assess the efficacy and safety of endocrine combined with different doses and treatment duration of darisenatide adjuvant therapy in HR +/HER2- early breast cancer. The study planned to include 2000 HR +/HER2- early breast cancer patients who met the study criteria and were randomized in a 1:1 ratio to Column 1 and Column 2 stratified by nodal status (positive/negative), prior (neo) adjuvant chemotherapy (yes/no), and clinical/pathological stage (Stage II/III). Cohort 1 received dalcili 125 mg in combination with endocrine therapy for 2 years with dalcili; Cohort 2 received dalcili 100 mg in combination with endocrine therapy for 3 years with dalcili; treatment had to be discontinued until disease progression, intolerable adverse events, withdrawal of consent, or investigator judgment.

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.

• 3-year invasive disease-free survival (Observed from enrollment through 3 years.) — Defined as the time from the date of enrollment until the first occurrence of one of the following iDFS events: invasive ipsilateral or contralateral recurrent breast cancer, local or regional recurrence, distant metastasis, and death from any cause.

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: Tamoxifen Citrate is indexed as Small molecule drug, with target ER, mechanism ERs antagonists, and global highest development status Approved.

Company & Deal Intelligence MCP profile: Fujian Cancer Hospital is resolved to a normalized organization record in Fuzhou, China. 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

NCT07581834 provides a focused lens on Early Stage Breast Carcinoma development. Its value will be determined by whether Tamoxifen Citrate can convert the current Phase 2 design into evidence that is clinically meaningful, operationally credible and differentiated from competing programs.

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