NCT04371913

Brief Summary

The goal of the study is to investigate the feasibility of enabling a second chance for breast conservation in patients with in-breast recurrences after a previous lumpectomy and RT, investigators propose to test partial breast irradiation with the target volume encompassing the entire surgical bed with 1.0-1.5 cm margins. An additional goal of the study is to investigate the feasibility of enabling a second chance for breast conservation in patients with inbreast recurrences after a previous lumpectomy and PBI, the investigators propose to test whole breast RT (WBRT) with the target as the whole breast volume.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P50-P75 for not_applicable breast-cancer

Timeline
118mo left

Started Jun 2020

Longer than P75 for not_applicable breast-cancer

Geographic Reach
1 country

3 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress38%
Jun 2020Dec 2035

First Submitted

Initial submission to the registry

April 29, 2020

Completed
2 days until next milestone

First Posted

Study publicly available on registry

May 1, 2020

Completed
2 months until next milestone

Study Start

First participant enrolled

June 30, 2020

Completed
10.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2030

Expected
5 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2035

Last Updated

January 27, 2026

Status Verified

January 1, 2026

Enrollment Period

10.5 years

First QC Date

April 29, 2020

Last Update Submit

January 26, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Rate of treatment related adverse events as graded by CTCAE version 5.0

    The primary endpoint of the study is to test the feasibility in terms of acute toxicity of a protocol of partial breast re-irradiation for breast cancer treatment in a previously irradiated whole breast, as defined by the rate of grade ≥ 3 treatment-related skin, fibrosis, and breast pain AEs, as graded by CTCAE version 5.0.

    up to 1 year from completion of radiation treatment

Secondary Outcomes (12)

  • Number of participants with late toxicity will be measured as graded by CTCAE version 5.0

    up to 60 months

  • Change in number of participants with skin changes

    baseline, approx. week 1- week 2 of radiation, 6 months, 12 months, 24 months, 36 months, 48 months, 60 months.

  • Change in Quality of life as assessed by Breast Cancer treatment outcome scale (BCTOS)

    baseline, approx. week 1- week 2 of radiation, 6 months, 12 months, 24 months, 36 months, 48 months, 60 months.

  • Number of participants who demonstrate local control

    60 months

  • Disease free survival (DFS) will be measured

    60 months

  • +7 more secondary outcomes

Study Arms (2)

Radiation Therapy - PBI

OTHER

Patients will be treated with the fractionation of 30 Gy in 5 fractions over 1-2 weeks, which is the accelerated partial breast irradiation (PBI) fractionation scheme of choice for RT naïve patients at New York Presbyterian using External Beam Radiation Therapy (EBRT)

Radiation: 600cGY x 5 fractions APBI

Radiation Therapy - WBRT

OTHER

Patients will be treated with the fractionation of 4050 cGy in 15 fractions over 3 weeks, which is the standard whole breast RT (WBRT) fractionation scheme of choice for RT naïve patients at New York Presbyterian using External Beam Radiation Therapy (EBRT)

Radiation: 270cGy x 15 fractions WBRT

Interventions

Patients will be treated with the fractionation of 30 Gy in 5 fractions over 1-2 weeks, which is the accelerated fractionation scheme of choice for RT naïve patients at New York Presbyterian using EBRT

Radiation Therapy - PBI

Patients will be treated with the fractionation of 4050 cGy in 15 fractions over 3 weeks, which is the standard whole breast RT (WBRT) fractionation scheme of choice for RT naïve patients at New York Presbyterian using External Beam Radiation Therapy (EBRT)

Radiation Therapy - WBRT

Eligibility Criteria

Age19 Years - 90 Years
Sexfemale(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Isolated ipsilateral unifocal breast lesions
  • Limited size (\< 2-3 cm) without evidence of skin involvement
  • Histologically proven invasive breast carcinoma or carcinoma in situ
  • Negative histologic margins of resection
  • Patients with 0 to 3 positive axillary lymph nodes without extracapsular extension
  • No synchronous distant metastases
  • Age ≥ 18 years
  • ≥ 12 months interval between initial breast conserving therapy (surgery and whole breast radiotherapy) and recurrence
  • Previous WBI or IORT, brachytherapy or external beam partial breast treatment
  • Technical feasibility
  • Every kind of systemic therapy is allowed
  • Informed consent for clinical and research purposes signed

You may not qualify if:

  • Regional recurrences (axillary, supraclavicular)
  • Positive histologic margins at resection
  • Metastatic disease
  • Poor cosmesis from previous surgery and RT
  • Extensive Intraductal Component

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

New York Presbyterian Brooklyn Methodist Hospital

Brooklyn, New York, 10065, United States

RECRUITING

New York Presbyterian Hospital - Queens

New York, New York, 10065, United States

RECRUITING

Weill Cornell Medicine

New York, New York, 10065, United States

RECRUITING

MeSH Terms

Conditions

Breast Neoplasms

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Study Officials

  • John Ng, M.D.

    Weill Medical College of Cornell University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 29, 2020

First Posted

May 1, 2020

Study Start

June 30, 2020

Primary Completion (Estimated)

December 31, 2030

Study Completion (Estimated)

December 31, 2035

Last Updated

January 27, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations