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Prospective Cohort Study Comparing VMAT with Skin-Flash versus Conventional VMAT on Superficial Target Dosimetry and Acute Skin Reaction in Post-Mastectomy Chest-Wall Radiotherapy

Prospective Cohort Study Comparing VMAT with Skin-Flash versus Conventional VMAT on Superficial Target Dosimetry and Acute Skin Reaction in Post-Mastectomy Chest-Wall Radiotherapy

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600116339
Enrollment
Unknown
Registered
2026-01-08
Start date
2026-01-15
Completion date
Unknown
Last updated
2026-01-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Post-mastectomy radiotherapy after modified radical mastectomy for breast cancer

Interventions

Convention VMAT group:None
VMAT+SkinFlash group:None

Sponsors

Peking University Shenzhen Hospital
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. Pathologically confirmed breast cancer and having undergone unilateral total mastectomy; 2. Presence of high-risk factors such as tumour invasion of the skin or chest-wall muscles, or =4 positive axillary lymph nodes, for which post-operative chest-wall radiotherapy is indicated; 3. Flat chest-wall contour without immediate or delayed breast reconstruction; 4. Eastern Cooperative Oncology Group (ECOG) performance status 0–2, able to tolerate radiotherapy; 5. Age: 18-70 years old (inclusive), female gender. 6. Voluntary participation with signed informed consent.

Exclusion criteria

Exclusion criteria: 1. Concurrent malignancies (except for those with excellent prognosis, e.g., basal-cell carcinoma of the skin or carcinoma in situ of the cervix); 2. Severe dysfunction of major organs (heart, lung, liver, kidney, etc.) precluding radiotherapy; 3. Chronic skin disorders (e.g., eczema, psoriasis) or active infectious skin lesions; 4. Previous thoracic radiotherapy; 5. Psychiatric, cognitive, or communication disorders precluding compliance with study procedures and follow-up; 6. Pregnancy, lactation, or intention to become pregnant during the study period.

Design outcomes

Primary

MeasureTime frame
acute skin toxicity;Measurement dose of Skin;

Secondary

MeasureTime frame
MU number;Dose to OARs;

Countries

China

Contacts

Public ContactWang Xuetao

Peking University Shenzhen Hospital

wangxuetaohappy@126.com+86 755 8392 3333

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026