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CompletedNCT00602628Updated Jun 26, 2013

Radiation Therapy Planning Techniques in Reducing Damage to Normal Tissue in Women Undergoing Breast-Conserving Surgery for Ductal Carcinoma of the Breast

An interventional study of questionnaire administration and adjuvant therapy in Breast Cancer, sponsored by Royal Marsden NHS Foundation Trust. Completed at 1 site in United Kingdom. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2013-06-26.

Sponsored by Royal Marsden NHS Foundation Trust · Not applicable, Interventional, and Diagnostic

Phase
Not applicable
Study type
Interventional
Enrollment
60
Ages
18 Years and older
Sex
Female
01

Study summary

RATIONALE: Diagnostic procedures, such as multifunctional magnetic resonance imaging and CT scans, may help reduce normal tissue damage in patients undergoing radiation therapy for cancer.

PURPOSE: This clinical trial is studying how well radiation therapy planning techniques work in reducing damage to normal tissue in women undergoing breast-conserving surgery for ductal breast carcinoma.

Read the detailed description

OBJECTIVES:

  • To improve precision of tumor bed localization and definition of clinical target volume, and to reduce normal tissue irradiation in women undergoing partial breast or breast boost radiotherapy.
  • To test whether post-operative MRI improves the precision of tumor bed delineation after wide-local excision in comparison with the current standard CT scan/clip method.
  • To determine the impact of tumor position within the excision specimen upon the localization of clinical target volume in relation to the tumor bed.
  • To compare theoretical non-target tissue exposure from partial breast irradiation planned in the supine and prone (face-down) positions.

OUTLINE: Patients undergo planned breast-conservation surgery and placement of titanium clips to the four radial, the deep, and superficial margins of the excision cavity (for localization of tumor bed).

Within 2 weeks after surgery, patients undergo supine radiotherapy-planning CT scan as standard analysis. Patients then undergo a radiotherapy-planning CT scan in the prone position. Patients complete a linear analogue questionnaire after both scans designed to assess patient comfort and anxiety in each position. Patients then undergo multifunctional MRI (including dynamic contrast-enhancement MRI and diffusion-weighted MRI) of the ipsilateral breast in the prone position (≥ 3 weeks after surgery). If suspicious lesions ≥ 5 mm are found on MRI, patients are referred for a second-look ultrasound with biopsy (if lesion visible on ultrasound); where suspicious lesions are seen only on MRI, patients undergo MRI-guided biopsy. Lesions \< 5 mm are included in the whole-breast radiotherapy treatment.

02

Conditions studied

  • Breast Cancer

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Keywords

  • ductal breast carcinoma in situ
  • invasive ductal breast carcinoma
  • breast cancer in situ
  • stage I breast cancer
  • stage II breast cancer
  • stage IIIA breast cancer
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In context

Breast Neoplasms

12,544 studies on the registry are indexed under Breast Neoplasms; 2,892 are open to participants now.

This study's planned enrollment of 60 is below the median of 72 across 9,303 interventional studies indexed under Breast Neoplasms.

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Lead sponsor

Royal Marsden NHS Foundation Trust is the lead sponsor of 262 studies on the registry; 49 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

DISEASE CHARACTERISTICS:

  • Planning to undergo breast-conserving surgery (BCS)* for unifocal ductal carcinoma in situ (DCIS) or grade 1-2 invasive ductal carcinoma (IDC) of the breast NOTE: *Patients who have underwent BCS and have titanium clips placed according to this protocol are eligible for this study.
  • No T4d or multifocal disease (as defined on mammography or ultrasound)
  • No G3 disease
  • Hormone receptor status not specified

PATIENT CHARACTERISTICS:

Inclusion criteria

Inclusion criteria:

  • Female
  • Menopausal status not specified

Exclusion criteria

Exclusion criteria:

  • Cup size DD or greater
  • Ferromagnetic implants (exclude participation in MRI)
  • Claustrophobia (exclude participation in MRI)
  • Gadolinium allergy

PRIOR CONCURRENT THERAPY:

  • No prior surgery to ipsilateral breast
  • No prior neoadjuvant chemotherapy
05

Study design

Phase
Not applicable
Primary purpose
Diagnostic
Masking
None (open label)
Enrollment
60 participants (estimated)

Interventions

  • Otherquestionnaire administration
  • Procedureadjuvant therapy
  • Procedurebiopsy
  • Procedurecomputed tomography
  • Proceduredynamic contrast-enhanced magnetic resonance imaging
  • Proceduremagnetic resonance imaging
  • Proceduretherapeutic conventional surgery
  • Procedureultrasound imaging
  • Radiationradiation therapy
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What researchers measure

Primary outcomes

  1. Difference in lung NTDmean (biologically weighted [normalized] mean of total dose to lung normalized to 2 Gy fractions) in supine vs prone positions

Secondary outcomes

  1. Closeness of agreement between MRI-based vs CT scan/clip- based delineation of tumor bed

  2. Closeness of agreement between clinical target volumes (CTVs) defined using uniform margin vs those defined using knowledge of all excision margins

  3. Difference in NTDmean to ipsilateral non-planning target volume (PTV) breast tissue, chest wall muscle, and heart

  4. Difference in mean volume of PTV in supine versus prone positions

  5. Difference in dose homogeneity within PTV in each position

  6. Difference in complexity of beams needed to achieve above dose homogeneity within PTV

  7. Patient comfort with each positioning technique (assessed by questionnaire)

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Study locations

1 site
  • Royal Marsden - Surrey
    Sutton, England SM2 5PT, United Kingdom
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 26, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00602628
Lead sponsor
Royal Marsden NHS Foundation Trust
First posted
Jan 28, 2008
Start date
Nov 2007
Primary completion
Jul 2008
Completion
Jan 2009
Last update
Jun 26, 2013

Study contacts

John R. Yarnold, MD, FRCR
study chair · Royal Marsden NHS Foundation Trust
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2009. You cannot join it, but the record below documents what was studied.

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