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A study to evaluate setup accuracy and patient preferences for radiotherapy performed under clothing

A prospective observational study on setup accuracy and patient preferences in radiotherapy under clothing - Radiotherapy-under-Clothing Study

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000060696
Enrollment
80
Registered
2026-02-17
Start date
2026-04-01
Completion date
Unknown
Last updated
2026-09-14

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

Conditions

Breast cancer

Interventions

In this study, wearing clothing during radiotherapy is defined as the intervention. All radiotherapy delivery and image-guided procedures are conducted within the scope of routine clinical practice. T

Sponsors

St. Luke's International University
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1) Patients with breast cancer scheduled to receive radiotherapy (whole-breast irradiation or accelerated partial breast irradiation) at our institution 2) Patients aged 20 years or older at the start of radiotherapy 3) Patients who have provided written informed consent to participate in this study

Exclusion criteria

Exclusion criteria: 1) Patients who decline to participate in this study or withdraw consent

Design outcomes

Primary

MeasureTime frame
Whether the three-dimensional (3D) vector length of the setup correction determined by image guidance during radiotherapy under clothing is within the clinically acceptable threshold of 5 mm at our institution.

Secondary

MeasureTime frame
Patient preferences for radiotherapy under clothing, assessed by the proportion of patients who choose radiotherapy under clothing and by questionnaire-based evaluations.

Countries

Japan

Contacts

Public ContactRyohei Yamauchi

St. Luke's International Hospital Department of Radiation Oncology

yamaryo@luke.ac.jp03-3541-5151

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Sep 19, 2026