NCT07543536 Megestrol Acetate Fatigue Clinical Landscape Report 2026: Design, Endpoints, Sponsor and Readout Outlook
Turn a newly registered trial into a decision-ready clinical landscape. This report examines NCT07543536 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: 13 August 2026. Trial records, recruitment status and projected dates can change after the snapshot and should be rechecked before operational decisions.
Why NCT07543536 is a hot trial to watch
Fatigue is being segmented by mechanism, treatment setting, geography and endpoint architecture. NCT07543536 is notable because it evaluates Megestrol Acetate in a Phase 3 design sponsored by Sun Yat-Sen University. The main development question is whether the protocol can translate its rationale into a clinically interpretable and operationally credible readout.
Trial landscape snapshot
| Field | Indexed detail |
|---|---|
| Registration | NCT07543536 |
| Official title | Megestrol Acetate for Fatigue Management in T-DXd Treated Breast Cancer (MEGA-TACT-BC3) |
| Phase / status | Phase 3 / Not yet recruiting |
| Intervention | Megestrol Acetate |
| Sponsor | Sun Yat-Sen University |
| Geography | China |
| Enrollment | [object Object] |
| Primary endpoint | Change in Fatigue Score (FACIT-Fatigue Scale) |
| Endpoint time frame | From baseline to end of 2nd cycle (approximately 6 weeks) |
| Primary completion / readout proxy | [object Object] |
Protocol design and endpoint interpretation
This study aims to evaluate whether the combination of Megestrol Acetate at the initiation of Trastuzumab Deruxtecan (T-DXd) treatment can effectively prevent and alleviate T-DXd-related fatigue, thereby improving the quality of life for advanced breast cancer patients.
Allocation is Randomized, masking is Triple, 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.
- Change in Fatigue Score (FACIT-Fatigue Scale) (From baseline to end of 2nd cycle (approximately 6 weeks)) — Measured by Functional Assessment of Chronic Illness Therapy - Fatigue (FACIT-F) Scale Version 4. Total score range: 0-52, with higher scores indicating less fatigue and better quality of life.
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: Megestrol Acetate is indexed as No normalized modality returned, with target No normalized target returned, mechanism No normalized mechanism returned, and global highest development status No normalized global status returned.
Company & Deal Intelligence MCP profile: Sun Yat-Sen University is resolved to a normalized organization record in Guangzhou, 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
NCT07543536 provides a focused lens on Fatigue development. Its value will be determined by whether Megestrol Acetate can convert the current Phase 3 design into evidence that is clinically meaningful, operationally credible and differentiated from competing programs.
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