Trial of Radiation Fractionation Schedules for Once-a-Day Accelerated

Status Completed

Clinical Trial Summary

This is a multi-centre randomized phase II trial in women with invasive carcinoma of the breast with negative axillary nodes or Ductal Carcinoma In-situ (DCIS) treated by Breast Conserving Surgery (BCS). Eligible, consenting patients will be randomly allocated to receive radiotherapy of 3 Dimensional Conformal Radiation Therapy (3DCRT) Accelerated Partial Breast Irradiation (APBI) 30 Gray (Gy) in 5 daily fractions of 6Gy or 27.5Gy in 5 daily fractions of 5.5Gy over one week. Patients will be followed at 12, 24, 36 and 60 months post randomization. Cosmetic outcome will be measured using photographs and evaluated by a panel of trained radiation oncologists. Radiation toxicity will be assessed using National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE).

Clinical Trial Description

Women with invasive carcinoma of the breast with negative axillary nodes or DCIS, following BCS and/or chemotherapy, who meet the inclusion criteria will be screened and approached for eligibility assessment and potential study enrollment. All potentially eligible and consenting patients who do not meet the exclusion criteria will have a Computed Tomography (CT) simulation of the ipsilateral breast prior to randomization. All cases will be required to be planned prior to the randomization to ensure that dosimetric coverage and normal tissue restrictions can be met. If the seroma is not clearly visible or if the surgical clips do not adequately identify a previous surgical cavity, the patient will not be eligible for randomization. Eligible, consenting patients will be randomly allocated to receive radiotherapy of 3DCRT APBI 30Gy in 5 daily fractions of 6Gy or 27.5Gy in 5 daily fractions of 5.5Gy over one week. Patients will be followed at 12, 24, 36 and 60 months post randomization. Cosmetic outcome will be measured using photographs and evaluated by a panel of trained radiation oncologists using the EORTC Breast Cosmetic Rating System. Radiation toxicity will be assessed using the NCI CTCAE version 4.02. The primary outcome is adverse cosmetic outcome at 2 years. The trial will be conducted in clinical centres within Canada. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02637024
Study type	Interventional
Source	Ontario Clinical Oncology Group (OCOG)
Contact
Status	Completed
Phase	Phase 2
Start date	May 2016
Completion date	December 2022

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Trial of Radiation Fractionation Schedules for Once-a-Day Accelerated Partial Breast Irradiation — OPAR

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms