Intraoperative Radiation Therapy (IORT) in DCIS

Breast Cancer Clinical Trial

Official title:

Locoregional Breast Cancer Recurrence Following Targeted Intraoperative Radiotherapy (IORT) for Ductal Carcinoma in Situ (DCIS)

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT03216421
• Other study ID #: AAAQ7853
• Status: Active, not recruiting
• Phase: N/A
• Start date: September 12, 2017
• Est. completion date: December 31, 2029

Study information

• Verified date: June 2024
• Source: Columbia University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The goal of this study is to examine the role of Intraoperative Radiotherapy (IORT) in Ductal Carcinoma In-Situ (DCIS) and to improve the understanding of the clinical, radiographic, and patient-related impact of adopting IORT.

Description:

With advances in technology and screening, the overdiagnosis and overtreatment of ductal carcinoma in situ (DCIS) have increased. Minimizing treatment toxicity and cost is a high priority area of research. Intraoperative Radiation Therapy (IORT)is a form of radiation where a single high dose of irradiation is applied to the tumor bed at the time of lumpectomy. Its use has not been previously studied in DCIS. Proposed advantages include decreased toxicity to adjacent tissue and organs, reduction in healthcare costs, and improved quality of life. The investigators hypothesize that IORT is a safe and patient-friendly alternative to whole breast irradiation.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 265
• Est. completion date: December 31, 2029
• Est. primary completion date: August 1, 2027
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Pathologically confirmed DCIS of the breast

• Clinical = 3.0 cm unifocal lesion

• No clinical or pathological evidence of nodal involvement

• Operable DCIS, suitable for breast conserving surgery

• Plans to administer irradiation to the breast only

• Eastern Cooperative Oncology Group (ECOG) performance status of 0-3, however grade 4 patients may be enrolled at the discretion of the treating radiation oncologist

• Must have had a diagnostic mammogram or MRI performed within last 6 months

• Women of child-bearing potential must have a negative pregnancy test in accordance to institutional guidelines

• Women of child-bearing potential must agree to use adequate contraceptive precautions (defined as oral contraceptives, intrauterine devices, surgical contraceptives, or combination of condom and spermicide) from the time of negative pregnancy test through the radiation treatment period.

• English or Spanish speaking

• Able to sign informed consent

• Amenable to regular follow-up (according to research policies) for at least 5 years.

Exclusion Criteria:

• Histologic or clinical evidence of invasive breast cancer

• Multicentric cancer in the ipsilateral breast as diagnosed by clinical examination, imaging, or pathologic assessment, not amenable to excision with negative margins with a single lumpectomy

• Synchronous bilateral breast cancer at the time of diagnosis

• Pathologic or imaging evidence of lymph node involvement

• Any severe concomitant disease that may limit their life expectancy to less than 5 years.

• Prior history of breast cancer or in-field radiation in the ipsilateral breast.

• Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.

• Pregnant or breast feeding women

Related Conditions & MeSH terms

• Breast Cancer
• Breast Neoplasms
• Carcinoma
• Carcinoma in Situ
• Carcinoma, Ductal
• Carcinoma, Intraductal, Noninfiltrating
• Ductal Carcinoma in Situ

Intervention

Other:
• Quality of Life Questionnaires
Quality of Life questionnaires will be completed by each subject.

Locations

Country	Name	City	State
United States	Columbia University Irving Medical Center	New York	New York

Sponsors (1)

Lead Sponsor	Collaborator
Columbia University

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Rate of local recurrence	Defined by ipsilateral breast tumor recurrence	5 years
Secondary	Disease-free survival	Determine incidence of any distant or local recurrence after the breast-conserving surgery (BCS) and IORT	5 years
Secondary	Overall survival	Quantify the overall survival in women with DCIS following BCS and IORT at 5 years.	5 years
Secondary	Acute Toxicities associated with IORT	Quantify the frequency of acute toxicities that occur within 6 months of having BCS and IORT. Measured using physician and patient reported toxicity surveys.	6 months
Secondary	Longterm radiation toxicity	Quantify the frequency of toxicities that occur at greater than 6 months after having BCS and IORT. Measured using using physician and patient reported toxicity surveys as well as photographic assessment of cosmetic outcome.	5 years